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					                                                                                              SusteIT ICT Energy and Carbon Footprinting Tool © S


                                                                                                    HPC         Completed?          Yes
INTRODUCTION and INSTRUCTIONS
This tool is designed to help Further and Higher Education (FHE) Institutions
estimate the in-use energy use and costs and carbon footprint of their non-                       Servers       Completed?          Yes
residential ICT usage.
                                                                                                  PCs and
The tool can be used in two ways:                                                                 monitors      Completed?          Yes
1. The ‘quick and simple’ method (blue area of the worksheet).
This only requires a number (which can be estimated) for each of the different types of
ICT device.                                                                                       Networks      Completed?          Yes
2. The ‘thorough’ (and more accurate) method (yellow area of the worksheet).
In addition to numbers of devices, this enables users to enter institution-specific data on
the power rating of equipment, and typical usage hours.                                            Phones       Completed?          Yes

For each item on the left, click on the link to go to the appropriate sheet and fill in the
details for your institutuion. Measure your progress by indicating when you have                   Imaging      Completed?          Yes
completed a section.

Each section allows you to return to this menu, or from each page you can a) click a link            AV         Completed?          Yes
to take you to another section or b) click the Tab for the section you want to go to.

When you have completed all sections you can see your totals and an anlysis of your
results by clicking on the 'Totals and analyis'' button.                                                     Totals and analysis




                                                                                                             The full spreadsheet




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g Tool © SusteIT 2009




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READ ME: SusteIT ICT Energy and Carbon Footprinting Tool

Please note that there may be occasional problems with displays of graphs and tables - you
may need to adjust your screen resolution for optimum display.

The tool is a simple Excel spreadsheet which contains the following worksheets (numbered in
the order in which they appear in the spreadsheet):

1. Menu – to aid navigation and to measure progress in completing the various worksheets
2. Read Me – contains detailed step by step instructions (see Section 3 of this User Guide)
3. Assumptions – provides all the default figures and how they were derived (see Section 10 of
this User Guide)
4. Sheffield Worked Example – contains a worked example for the University of Sheffield (see
Section 5 of this User Guide)
5. HPC – Enter data on departmental and central high performance computing plus
cooling/power supply overhead
6. Server Rooms – Enter data on central and departmental servers plus storage and
cooling/power supply overhead
7. PCs and Monitors – Enter data on PCs, laptops, thin clients and monitors
8. Networks – Enter data on hubs, switches, routers and Power Over Ethernet
9. Phones – Enter data on PABX and VOIP phones power supply/cooling overhead for PABX
10. Imaging – Enter data on printers, copiers, scanners, faxes
11. AV – Enter data on projectors, OHP and plasma screens
12. Total and Analysis – Displays results for energy use and carbon dioxide emissions broken
down by category of device
13. Energy Use – Provides graphic displays of energy use broken down by category of device
14. Energy Cost – Provides graphic displays of energy cost broken down by category of device
15. CO2 Emissions – Provides graphic displays of carbon dioxide emissions broken down by
category of device
16. ICT in the University – compares ICT energy and carbon dioxide emissions to total
institutional energy and carbon dioxide emissions
17. Tool - if you prefer, you can enter the data directly into a single sheet . The data from the
previous sheets is also fed automatically into this sheet.

Worksheets 2-4 above are informational only.
Worksheets 5 – 11 are the main worksheets requiring data input on numbers of devices and,
where available, data on power and usage. They each have a similar format.
Worksheet 12 displays results for worksheets 5-11 based on default assumptions for electricity
costs and carbon dioxide emissions. These defaults can be amended if required.
Worksheets 13-15 displays bar and pie charts of the results for worksheets 5-11.
Worksheet 16 require data input on the total (non-residential) electricity use, costs and carbon
emissions for the institution and displays ICT as a proportion of those.
Using the tool
The tool can be used in two ways:

The ‘quick and simple’ method (blue area of worksheets 5-11).
This only requires a number (which can be estimated) for each of the different types of ICT
device. The spreadsheet then uses default assumptions of power ratings and usage to estimate
the total energy consumption (kWh/y) and carbon dioxide emissions (kg/kWh) of the ICT
devices in the worksheet labelled “Total and Analysis”.

The ‘thorough’ (and more accurate) method (yellow area of the worksheets 5-11).
In addition to numbers of devices, this enables users to enter institution-specific data on the
power rating of equipment, and typical usage hours. The assumptions used to obtain the
default settings for power and usage are described below, and also summarised in the
worksheet labelled “Assumptions”.




Quick and Simple Method
Step 1: Working with relevant staff (IT management, energy management, print management,
academics, library/learning support, research staff) gather data on the number of ICT devices at
your institution.

Step 2: Use the “Menu” worksheet to navigate around the spreadsheet. For each individual
category of ICT device, go to the relevant worksheet and enter estimates of the number of ICT
devices at the university, including departmental devices. Use the “Menu” worksheet to
measure progress as you complete each individual worksheet.

Step 3: Once you have entered all the data in the worksheets 5-11, the tool will provide a
breakdown of ICT energy use by category and total energy consumption in the worksheet
“Total and Analysis” with graphical displays in the worksheets “Energy use”, “Energy Cost” and
“CO2 Emissions”. If required you can amend the default electricity price and carbon dioxide
emission.

Step 4: In the “ICT in the University” worksheet enter data on total institution non-residential
electricity use, total non-residential electricity cost and total non-residential electricity-related
carbon emissions. Check the total ICT energy consumption estimate against the total non-
residential electricity usage for the institution to see if it appears to be a reasonable proportion
(e.g. between 10-50%). If very low or very high you may need to check the assumptions used.

Once you have entered all the data, the tool will provide a breakdown of ICT energy use,
energy costs and carbon emissions in the worksheet "Total and Analysis" with graphical
displays in the worksheets "Energy use", "Energyc Cost" and "CO2 Emissions".
Thorough Method
Step 1: Working with relevant staff (IT management, energy management, print management,
academics, library/learning support) gather data on the number, type and typical usage of ICT
devices at your institution.

Step 2: Use the “Menu” worksheet to navigate around the spreadsheet. For each individual
category of ICT device, go to the relevant worksheet and enter estimates of the number of ICT
devices at the university, including departmental devices in worksheets 5-11 for individual
categories. Use the “Menu” worksheet to measure progress as you complete each individual
worksheet.

Step 3: If your institution uses some form of powersave management to put computers into a
lower power mode (e.g. hibernate, sleep or standby) after a certain period or at a certain time,
then you need to estimate what proportion of PCs are affected, both in computer suites and in
departments. This will affect the usage hours in a particular energy mode (i.e. computers with
powersave management typically spend less time in active/idle mode). You will then need to
adjust the usage hours in active mode in the yellow area of the worksheet “PCs and monitors”
accordingly (the hours in standby mode will adjust automatically).

Step 4: Check the usage assumptions in the “Imaging” and “AV” worksheets and adjust in the
yellow area of the worksheet where necessary.

Step 5: Check if your institution has any data on the overheads as shown in Table 1 and amend
the default value where appropriate in the relevant worksheet.

Table 1: Default values for the overheads used in the tool
Worksheet         Overhead                    Cell         Default value
HPC             Cooling                       E8           0.425
HPC             Power supply                  E9           0.075
Servers          Storage and other equipment      E7          0.15
Servers          Cooling                      E9           0.425
Servers          Power supply                  E10          0.075
PCs & Monitors Cooling (for airconditioned         H19          0
                computer suites only)
Phones           PABX cooling and power supply E6             0.1

Step 6: Check the tool's default figures for power ratings (watts) for the different devices in
worksheets 5-11 (see Table 6 for summary), and see if these appear reasonable based on the
typical devices used at your institution. If too low or too high, change the default settings in the
yellow area of worksheets 5-11. If you are unsure, estimate a range of energy consumption
based on separate calculations using low and high power ratings.

Step 7: Check the tool's default figures for usage (hours per year) for the different devices in
worksheets 5-11(see Table 7 for summary), and see if these appear reasonable based on usage
patterns at your institution. If too high or too low, change the default settings in the yellow
area of the tool. If you are unsure, estimate a range of energy consumption based on separate
area of the tool. If you are unsure, estimate a range of energy consumption based on separate
calculations using low and high usage rates.

Step 8: In worksheet “Total and Analysis” check the default figures for electricity costs (p/kWh)
and carbon dioxide emission factor (kgCO2/kWh) and change if necessary. The former is based
on a typical figure for 2008/09 (including VAT). The latter is based on Defra’s 2008 conversion
factor for grid electricity which is a rolling average of the last five years and is updated
annually. Institutions with Combined Heat and Power (CHP) should use the conversion method
in Defra’s Guidelines.

Step 9: In the “ICT in the University” worksheet enter data on total institution non-residential
electricity use, total non-residential electricity cost and total non-residential electricity-related
carbon emissions. Check the total ICT energy consumption estimate against the total non-
residential electricity usage for the institution to see if it appears to be a reasonable proportion
(e.g. between 10-50%). If very low or very high you may need to check the assumptions used.

Once you have entered all the data, the tool will provide a breakdown of ICT energy use,
energy costs and carbon emissions in the worksheet “Total and Analysis” with graphical
displays in the worksheets “Energy use”, “Energy Cost” and “CO2 Emissions”.
d (see Section 10 of
ault settings in the
SusteIT ICT Energy and Carbon Footprinting Tool: Assumptions
Below are the different categories of ICT equipment and the assumptions used to obtain the default data in the
The alphabetical numbering system refers to the reference in the tool.
Note that all usage figures assume that equipment is NOT switched off at the mains supply at any point in the
academic year, i.e. standby mode is the lowest power mode in this tool.
Text in italics indicates where the HEEPI tool assumptions deviate from the Sheffield data.

High Performance Computing (HPC) (research-intensive institutions only)
(a) Watts per unit: 300 W, based on measurements made on individual HPCs at University of Sheffield of 270 W
(b) Aircon overhead: +50%. Based on general experience at universities of an air conditioning overhead of 40-45%
and power supply losses associated with the UPS of 5-10%. A median figure of 50% was adopted to account for
both. For well managed server rooms a lower overhead of 40-45% may be used. At University of Sheffield a figure of
(b1) Based on the range in (b) above a median value of 42.5% was used for the cooling overhead.
(b2) Based on the range in (b) above a median value of 7.5% was used for the power supply overhead.

Server rooms
(c) Watts per unit: 300W, based on measurements made on individual HPCs at University of Sheffield of 270W
rounded up. At University of Sheffield a total measured figure for power was used based available only (2007) (see
(d) Other server equipment. A figure of 15% of total server all server equipment was on Emerson with no
References below). At University of Sheffield a total measured figure for all server equipment was available only with
no breakdown based on numbers of servers or equipment.
(e) Aircon overhead: +50%. Based on general experience at universities of an air conditioning overhead of 40-45%
and power supply losses associated with the UPS of 5-10%. A median figure of 50% was adopted to account for
both. For well managed server rooms a lower overhead of 40-45% may be used. At University of Sheffield a figure of
(e1) Based on the range in (e) above a median value of 42.5% was used for the cooling overhead.
(e2) Based on the range in (e) above a median value of 7.5% was used for the power supply overhead.

PCs and Monitors
(f) Watts per unit for active/idle power consumption were based on measurements made on individual computers at
University of Sheffield, rounded up. The idle power rating was adopted as most PCs spend most of their time in this
mode. Typically idle mode for a desktop can range between 40-90W. Standby mode for a desktop is typically
between 1-3 W. Laptop power is typically lower. Power use for monitors was based on measurements at the
University of Sheffield. Thin client power was based on measurements of SunRay units without a monitor which use
(g) Hours per year in use for active/idle and standby were based by the network after a certain time in idle mode and
Managed computers (i.e. PCs are powered down automatically on the following:
hence spend more time in standby) are in active/idle mode for 40 hours per week, 52 weeks a year (i.e.2,080
hours/year), and in standby for the remaining hours of the year.
Unmanaged computers in computer suites and departments are in active/idle mode for 70 hours per week, 52 weeks
per year (i.e. 3,640 hours/year) (and in standby for the remaining time).
Laptops and monitors are active/idle for 40 hours per week, 52 weeks per year (i.e. 2,080 hours/year) as the default
on most operating systems tends to power them down to standby after 20 minutes.
(g1) The tool does not apply an overhead to normal computer suites/rooms used by students on the grounds that
they are not normally air conditioned. If computer suites/rooms are air-conditioned an overhead percentage needs to
be made in the line labelled “Adjustments” (in cell G36). This in turn needs to be multiplied only by the total energy of
the computers and monitors in computer suites – the tool assumes as a default that this is student managed PCs
plus the same number of CRT monitors (see calculation in cell H36) but this should be amended accordingly.

Networks
(h) Power usage for network equipment was based on measurements at the University of Sheffield, rounded up.

Phones
(i) Watts per PABX distributed phone were based on measurements at University of Sheffield of 1.75W, rounded up.
(j) An overhead of 10% was made for the extra electricity used by the UPS units based on estimates at the University
(k) Locally powered VOIP phones were assumed to use 8W per phone based on a CISCO IP phone (5 W per hone
and 3W per Ethernet port) (Cartledge, 2007). The University of Sheffield does not have any VOIP phones .
Imaging Devices
Central Services
(l) High volume copiers power use in active and standby mode were based on University of Sheffield figures,
rounded up, for a student photocopier. UK usage figures (MTP, 2007a) suggest that a non-domestic copier is active
for 27 hours a week and idle for 13 hours a week, therefore it was assumed that central photocopiers are active/idle
for 40 hours a week, 52 weeks a year (i.e. 2,080 hours/year). Assumed to be on standby for the remaining time.
While the worked example for University of Sheffield appears to show no high volume copiers, their energy use is
(m) High volume printers power use in active and standby mode was based on MTP (2007) (see references) UK
average stock figures for a 2007 non-domestic laser printer, rounded up. On-active and on-ready power was
weighted using a ratio of 1:3 to give a weighted power figure in active/idle mode of 475 W. Usage was based on an
assumption of active/idle mode for 40 hours per week, 52 weeks a year. The remainder is assumed to be standby.
While the worked example for University of Sheffield appears to show no high volume printers, their energy use is
(n) Student photocopiers power rating was based on University of Sheffield figures for Sharp copiers, rounded up
Departmental
(o) High/medium and low/medium volume copiers power rating was based on University of Sheffield figures for Sharp
departmental copiers, rounded up. The active/idle mode power consumption was estimated from a fluctuating
measured value as each sheet of paper is printed, while the standby figure was measured. The devices were found
to return to standby anywhere between 30 seconds or 20 minutes after last use. It was assumed that devices would
(p) Departmental shared laser printers (monochrome and colour) power rating was based on University of Sheffield
measured figures for active and standby mode, rounded up. It was assumed devices would be printing for two hours
a day, 5 days a week or 520 hours per year, based on experience at the University of Sheffield.
(q) Scanners power rating based on maximum sleep power rating for EU Energy Star scanners of 5W (EU Energy
Star, 2006). Sleep mode is assumed to be similar to idle mode. Standby power was assumed to be 2W. Usage was
based on active use for 1 hours a day, 5 days a week, 52 weeks a year, idle for 7 hours a day, 5 days a week, 52
weeks a year. Assumed to be on standby for the remaining time. No figures available from the University of
(r) Fax power rating based on database for EU Energy Star faxes (EU Energy Star, 2008) which typically use less
than 1 kWh/week. Note that these are the most energy efficient faxes on the market so this may be an
underestimate of typical use. No figures available from the University of Sheffield.
Personal
(s) Monochrome laser printer and inkjet printer power rating based on University of Sheffield measured figures and
estimated usage of 20 minutes active use per day, 5 days per week, 52 weeks per year (i.e. 87 hours per year).
(t) Personal MFD power rating based on MTP (2007) (see references) UK 2007 stock average figures for a domestic
laser MFD. An average of ‘on-active’ and ‘on-ready’ power was used for active mode, and ‘sleep/off’ for standby

Audio-Visual Devices
(u) Projectors and OHP power use based on manufacturer’s stated data for active use and measured data for
standby power for devices at the University of Sheffield, rounded up. Teaching hours is based on 5 hours a day, 5
days per week for 40 weeks a year (i.e. 1,000 hours per year)
(u1) Plasma screens based on power consumption for typical 61" plasma screen. However power rating would need
to be increased or decreased for larger and smaller screens respectively. E.g 84" screen typically 1100W,42" screen
typically 275W. Assumed that these are run 24/7 but adjustment would need to be made for screens powered down
with timer switches to standby. There are no plasma screens at the University of Sheffield.

Energy Costs
(v) Energy costs are based on a nominal electricity price of 12 p/kWh (incl. VAT)

Carbon Dioxide Emissions
(w) Carbon dioxide (CO2) emissions are based on Defra's 2008 conversion factor of 0.53702 kg/kWh for grid
electricity contained in Annex 3 of Defra’s Guidelines for Greenhouse Gas Conversion Factors for Company
Reporting (Defra 2008). This is a UK average figure. Note this figure is a rolling average of the last five years and is
updated annually. Institutions with on-site renewable electricity should adjust this figure. Institutions with Combined
SusteIT ICT Energy and Carbon Footprinting Tool - University of Sheffield worked example
This information is based on detailed analysis by Chris Cartledge at the University of Sheffield.
A full commentary on how these figures were derived can be found in an appendix to the User Guide for the tool.


                                             Number    Watts
                                                                   Total                                          Total
High Performance Computing                     1u       per                  Hours/y                Overhead
                                                                   Watts                                          kWh/y
                                             servers server (a)

Departmental HPC
Central HPC
Server sub-total
HPC cooling & power supply overhead (b)
HPC Sub-total


                                             Number    Watts        Total
                                                                                                    Overhead      Total
Server Rooms                                   1U       per        Server    Hours/y
                                                                   Watts
                                                                                                       (d)        kWh/y
                                             servers server (c)

Central servers
Departmental servers
Storage & other server equipment (d)
Server/equipment sub-total
Server cooling & power supply overhead (e)
Server sub-total

                                                        Watts     Watts       Hours        Hours
                                                                                                   kWh/y per      Total
PCs & Monitors                               Number    (Active, (Standby     (Active,    (Standby)
                                                                                                     PC           kWh/y
                                                       idle) (f)   ) (f)     idle) (g)       (g)
PCs
High performance PCs and workstations
Medium performance, standard PCs
Low power, green PCs
Managed standard PCs
Student green PCs
Student standard PCs
Other Devices
Portable PCs (laptops)
Thin clients
Monitors
CRT Monitors
Flat (LCD or TFT) Monitors
Adjustments
Aircon overhead for computer suites
PCs & monitors sub-total

                                                    Watts                                                Total
Networks                                  Number   /unit (h)              Hours/y                        kWh/y
Cabinet-based hubs, switches, wireless
access points & routers
Edge switches
Aggregation switches
Core switches
Wireless access points
Room-based switches, wireless access
points & hubs
Room based hubs
Unmanaged edge switches
Power over ethernet (POE)
Power over ethernet (POE)
Networks sub-total

                                                    Watts       Total                                    Total
Phones                                    Number                          Hours/y   Overhead
                                                    /unit       Watts                                    kWh/y
PABX distributed (i)
PABX cooling and power supply (j)
Locally powered VOIP phones (k)
Phones sub-total

                                                    Watts        Watts    Hours
                                                                                      Hours              Total
Imaging                                   Number   (active     (Standby   (active             kWh/unit
                                                                                    (Standby)            kWh/y
                                                    /idle)         )       /idle)
Central services
High volume copiers (l)
High volume printers (m)
Student photocopiers (n)
Departmental
High/medium volume copiers/MFDs (o)
Low/medium volume copiers/MFDs (o)
Networked monochrome laser printers (p)
Networked colour laser printers (p)
Scanners (q)
Faxes ®
Personal
Monochrome laser printer (s)
Inkjet printer (s)
MFD (t)
Imaging Sub-total

                                                               Watts
                                                     Watts                   Hours           Hours     Total
AV                                       Number              (Standby
                                                    (Active)                (Active)       (Standby)   Kwh/y
                                                                 )
Projectors (u)
OHP (u)
Plasma screens ( 61" screen) (u1)
AV Sub-total

Breakdown of ICT Energy Use by Category
Default electricity price (p/KwH)            0.12
Default CO2 emission (kg CO2/kWh) (w)       0.537

                                         Energy               Energy          CO2
                Category                   Use        %       Cost         emissions
                                         (kWh/y)              (£/y)          (kg/y)
HPC                                             0   #DIV/0!            0            0
Servers                                         0   #DIV/0!            0            0
PCs                                             0   #DIV/0!            0            0
Networks                                        0   #DIV/0!            0            0
Telephony                                       0   #DIV/0!            0            0
Imaging                                         0   #DIV/0!            0            0
AV                                              0   #DIV/0!            0            0

TOTAL                                          0 #DIV/0!               0               0




                                HPC
                             Telephony
                               Imaging
                           Servers AV
                                 PCs
                              Networks

                                                                       HPC
                                                                       Servers
                                                                       PCs
                                                                       Networks
                                                                       Telephony
                                                                       Imaging
Imaging
AV
                                       SusteIT ICT Energy and Carbon Footprinting Tool © SusteIT 2009
         INSTRUCTIONS
     Type in the blue areas -                                                                           Watts per
  nominal figures only have been       High Performance Computing                  Number 1u servers               Overhead   Total kWh/year
                                                                                                        server (a)
             entered.
                                       Departmental HPC                                                                                   0
                                       Central HPC                                                                                        0
 Areas in yellow are default figures   Server sub-total                                                                                   0
    which can be altered if data       HPC cooling overhead (b1)
    specific to the institution is     HPC power supply overhead (b2)
              available.               HPC cooling & power supply overhead (b)                                                            0
                                       HPC Sub-total                                                                                      0

               NOTES                                   PCs and
The letters in brackets correspond        Servers                 Networks       Phones    Imaging     AV
                                                       monitors
to explanations in the User Guide
and the worksheet "Assumptions"
 on how the default assumptions
          were derived.                     Totals and analysis




            MENU




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                                      SusteIT ICT Energy and Carbon Footprinting Tool © SusteIT 2009
        INSTRUCTIONS
    Type in the blue areas -                                                          Number of 1U     Watts per server
 nominal figures only have been       Server Rooms                                                                        Overhead
                                                                                        servers              (c)
            entered.
                                      Central servers
                                      Departmental servers
Areas in yellow are default figures
                                      Storage & other server equipment (d)
   which can be altered if data
                                      Server/equipment sub-total
   specific to the institution is
             available.               Server cooling overhead (e1)
                                      Server power supply overhead (e2)
                                      Server cooling & power supply overhead (e)
               NOTES                  Server sub-total
The letters in brackets correspond
to explanations in the User Guide
                                                     PCs and                                 Imaging
and the worksheet "Assumptions"           HPC                      Networks        Phones                    AV
                                                     monitors
 on how the default assumptions
          were derived.


                                                                Totals and analysis



            MENU




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steIT 2009

       Total kWh/year

                        0
                        0
                        0
                        0



                        0
                        0




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                                      SusteIT ICT Energy and Carbon Footprinting Tool © SusteIT 2009
         INSTRUCTIONS
     Type in the blue areas -                                                               Watts        Watts     Hours/y      Hours/y
                                                                                                                                         kWh/y     Total
  nominal figures only have been      PCs & Monitors                             Number    (Active,    (Standby)   (Active,    (Standby)
                                                                                                                                         per PC    kWh/y
             entered.                                                                      idle) (f)       (f)     idle) (g)       (g)
                                      PCs
                                      High performance PCs & workstations
Areas in yellow are default figures
                                      Medium performance, standard PCs
   which can be altered if data
                                      Low power, green PCs
   specific to the institution is
                                      Managed standard PCs
                                      Student green PCs
               NOTES                  Student standard PCs
The letters in brackets correspond    Other Devices
to explanations in the User Guide     Portable PCs (laptops)
and the worksheet "Assumptions"       Thin clients
 on how the default assumptions       Monitors
          were derived.               CRT Monitors
                                      Flat (LCD or TFT) Monitors
                                      Adjustments
                                      Aircon overhead for computer suites (g1)                                                              0.00           0
                                      PCs & monitors sub-total                                                                                             0
            MENU


                                                                  Networks                                           Totals and
                                         HPC         Servers                      Phones   Imaging       AV
                                                                                                                      analysis




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                                      SusteIT ICT Energy and Carbon Footprinting Tool © SusteIT 2009
        INSTRUCTIONS
    Type in the blue areas -
 nominal figures only have been                                                              Watts per
            entered.                  Networks                                      Number    unit (h)        Hours/y   Total kWh/y
                                      Cabinet-based hubs, switches, wireless
Areas in yellow are default figures   access points & routers
   which can be altered if data       Edge switches
   specific to the institution is     Aggregation switches
             available.               Core switches
                                      Wireless access points
                                      Room-based switches, wireless access
               NOTES                  points & hubs
The letters in brackets correspond    Room based hubs
to explanations in the User Guide     Unmanaged edge switches
and the worksheet "Assumptions"
 on how the default assumptions       Power over ethernet (POE)
          were derived.               Power over ethernet (POE)
                                      Networks sub-total                                                                              0



                                                                PCs and                                  AV
            MENU                        HPC        Servers
                                                                monitors
                                                                               Phones    Imaging




                                                             Totals and analysis




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                                      SusteIT ICT Energy and Carbon Footprinting Tool © SusteIT 2009
         INSTRUCTIONS
    Type in blue areas below
 Type in thethe blue areas - -                                                           Watts per
 nominal figures only have been       Phones                                  Number                 Overhead   Total kWh/y
                                                                                           unit
            entered.
                                      PABX distributed (i)
Areas in yellow are default figures
                                      PABX cooling and power supply (j)
   which can be altered if data
                                      Locally powered VOIP phones (k)
   specific to the institution is
                                      Phones sub-total                                                                    0.00
             available.

               NOTES
               NOTES
The letters in brackets correspond
The letters in brackets correspond                              PCs and
to explanations in the User Guide        HPC        Servers                   Networks     Imaging      AV
to explanations in the User Guide                               monitors
and the worksheet "Assumptions"
and the worksheet "Assumptions"
 on how the default assumptions
 on how the default assumptions
          were derived.
          were derived.
                                                           Totals and analysis
                                                          Totals and analysis


            MENU




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                                      SusteIT ICT Energy and Carbon Footprinting Tool © SusteIT 2009
        INSTRUCTIONS
                                                                                            Watts               Hours/y Hours per
    Type in the blue areas -                                                                            Watts
                                      Imaging                                   Number     (active              (active    year   kWh/unit        Total kWh/y
 nominal figures only have been                                                                       (Standby)
                                                                                            /idle)               /idle) (Standby)
            entered.
                                      Central services
Areas in yellow are default figures
                                      High volume copiers (l)
   which can be altered if data
                                      High volume printers (m)
   specific to the institution is
                                      Student photocopiers (n)
             available.
                                      Departmental
               NOTES                  High/medium volume copiers/MFDs (o)
The letters in brackets correspond    Low/medium volume copiers/MFDs (o)
to explanations in the User Guide     Networked monochrome laser printers (p)
and the worksheet "Assumptions"       Networked colour laser printers (p)
 on how the default assumptions       Scanners (q)
          were derived.               Faxes (r)
                                      Personal
                                      Monochrome laser printer (s)
                                      Inkjet printer (s)
             MENU                     Laser MFD (t)
                                      Imaging Sub-total                                                                                                         0

                                                                 PCs and        Networks
                                         HPC        Servers                                  Phones           AV            Totals and analysis
                                                                 monitors




                                                                            Page 1
Page 2
Page 3
Page 4
                                       SusteIT ICT Energy and Carbon Footprinting Tool © SusteIT 2009
         INSTRUCTIONS
     Type in the blue areas -                                                         Watts       Watts   Hours/y     Hours/y
  nominal figures only have been       AV                                   Number                                                 Total kWh/y
                                                                                     (Active)   (Standby) (Active)   (Standby)
             entered.
                                       Projectors (u)
 Areas in yellow are default figures   OHP (u)
    which can be altered if data       Plasma screens ( 61"screen) (u1)
    specific to the institution is     AV Sub-total                                                                                              0
              available.


               NOTES
                                            HPC      Servers     PCs and      Networks     Phones       Imaging       Totals and
The letters in brackets correspond                               monitors                                              analysis
to explanations in the User Guide
and the worksheet "Assumptions"
 on how the default assumptions
          were derived.




            MENU




                                                                          Page 1
Page 2
Page 3
Page 4
Breakdown of Annual ICT Energy Use, Energy Cost and Carbon Emissions by Category
  Areas in yellow are default figures
     which can be altered if data
     specific to the institution is
               available.                                                                                             CO2
                                                                          Energy Use                   Energy Cost
                                                           Category                             %                  emissions
                                                                           (kWh/y)                     (£/y)
                                                                                                                     (kg/y)

        CO2 emission (p/KwH) (v)
Default electricity price(kg CO2/kWh)           0.12    HPC                             0   #DIV/0!             0          0
(w)                                            0.537    Servers                         0   #DIV/0!             0          0
                                                        PCs                             0   #DIV/0!             0          0
                                                        Networks                        0   #DIV/0!             0          0
                                                        Telephony                       0   #DIV/0!             0          0
                                                        Imaging                         0   #DIV/0!             0          0
              MENU                                      AV                              0   #DIV/0!             0          0

                                                        TOTAL                           0   #DIV/0!             0          0




                         Energy use                       CO2       Analysis of ICT costs as related
                                        Energy cost
                          analysis                     emissions      to the energy costs of the
                                         analysis
                                                        analysis               institution




                                                                                 Page 1
Page 2
                                                                                                 Energy
                                                                                      Category     Use           %
Analysis of Annual (non residential) ICT Energy Use                                              (kWh/y)                  Energy cost
                                                                                 HPC                       0   #DIV/0!     analysis
    Areas in yellow are default figures which can be altered if data
                                                                                 Servers                   0   #DIV/0!
                 specific to the institution is available.
                                                                                 PCs                       0   #DIV/0!
Default electricity price (p/KwH) (v)                                   0.12     Networks                  0   #DIV/0!       CO2
Default CO2 emission (kg CO2/kWh) (w)                                  0.537     Phones                    0   #DIV/0!    emissions
                                                                                 Imaging                   0   #DIV/0!     analysis
                                                                                 AV                        0   #DIV/0!
                                                                                 TOTAL                     0   #DIV/0!
             MENU




                                               Energy Use (%)                                                        Energy Use (kWh/y)


                                                                                                       1
                                                                                                       1
                                                0%
                                                0%                              HPC                    1
                                                                                Servers                1
                                                                                                       1
                                                                                PCs                    1
                                                                                                       0
                                                                                Networks               0
                                                                                Phones                 0
                                                                                                       0
                                                                                Imaging                0
                                                                                AV




                                                                               Page 1
Page 2
Analysis of Annual Energy Cost by Category
  Areas in yellow are default figures
     which can be altered if data
     specific to the institution is
               available.                                        Energy        Energy Cost
                                                      Category
                                                                 Cost (£/y)        (%)          Energy use
                                                                                                 analysis
        CO2 emission (p/KwH) (v)
Default electricity price(kg CO2/kWh)    0.12    HPC                       0       #DIV/0!
(w)                                     0.537    Servers                   0       #DIV/0!
                                                 PCs                       0       #DIV/0!
                                                 Networks                  0       #DIV/0!     CO2 emissions
                                                 Phones                    0       #DIV/0!       analysis
                                                 Imaging                   0       #DIV/0!
            MENU                                 AV                        0       #DIV/0!
                                                 TOTAL                     0




                     Energy Cost (%)                                                   Energy Cost (£/y)




                                                                      1
                                                                      1
                       0.0%                     HPC                   1
                                                                      1
                                                Servers               1
                                                PCs                   1
                                                                      0
                                                Networks              0
                                                                      0
                                                Phones                0
                                                                      0
                                                Imaging
                                                AV                        Page 1
Page 2
Page 3
Analysis of Annual ICT Carbon Emissions by Category
  Areas in yellow are default figures
     which can be altered if data
     specific to the institution is                                CO2      CO2
               available.                            Category   emissions emissions
                                                                  (kg/y)     (%)        Energy use
Default electricity price (p/KwH) (v)    0.12   HPC                      0 #DIV/0!       analysis
Default CO2 emissions (kg/kWh) (w)      0.537   Servers                  0 #DIV/0!
                                                PCs                      0 #DIV/0!
                                                Networks                 0 #DIV/0!
                                                Telephony                0 #DIV/0!      Energy cost
                                                                                         analysis
              MENU                              Imaging                  0 #DIV/0!
                                                AV                       0 #DIV/0!
                                                TOTAL                    0




                     CO2 emissions (%)                                         CO2 emissions (kg/y)




                           0.0%                                      1
                           0.0%                 HPC                  1
                                                                     1
                                                Servers              1
                                                                     1
                                                                     1
                                                PCs                  0
                                                                     0
                                                Networks             0
                                                                     0
                                                Telephony            0
                                                Imaging
                                                AV

                                                                      Page 1
Page 2
Annual ICT Electricity Use, Electricity Cost and Carbon Emissions as related to the Total Institution
 Areas in yellow should be
 filled in with data specific                 Electricity use
      to the institution.                                                                                             CO2            CO2
                                                   (Non           Electricity     Electricity       Electricity
                                                                                                                   emissions       emissions
                                               residential)        use (%)        cost (£/y)         cost (%)
                                                                                                                     (kg/y)           (%)
                                                 (kWh/y)
                                Total
                                institution
                                ICT                           0    #DIV/0!                      0    #DIV/0!                   0    #DIV/0!
                                Non-ICT                       0    #DIV/0!                      0    #DIV/0!                   0    #DIV/0!



                                              ICT and non-ICT electricity use
                                                                                                           ICT and non-ICT
           MENU                                                                                             electricity cost


                                                         0%                                                       0%
                                                                                ICT
                                                                                                                                      ICT
                                                                                Non-ICT
                                                                                                                                      Non-ICT




                                                                                 ICT and non-ICT CO2
                                                                                      emissions

                                                                                           0%
                                                                                  Page 1
         ICT

         Non-ICT




Page 2
Page 3
SusteIT ICT Energy and Carbon Footprinting Tool © SusteIT 2009
Type in the blue areas below - nominal figures only have been entered
Areas in yellow are default figures which can be altered if data specific to the institution is available.
The letters in brackets correspond to explanations in the User Guide and the worksheet "Assumptions" on how the default assumptions were derived.

                                             Number
                                                      Watts per          Total                                                 Total
High Performance Computing                     1u                                      Hours/y                     Overhead
                                                      server (a)         Watts                                                 kWh/y
                                             servers
Departmental HPC                                    0          0                  0        8,760                                       0
Central HPC                                         0          0                  0        8,760                                       0
Server sub-total                                                                                                                       0
HPC cooling overhead (b1)
HPC power supply overhead (b2)
HPC cooling & power supply overhead (b)                                                                                0.000           0
HPC Sub-total                                                                                                                          0

                                             Number                       Total
                                                     Watts per                                                                 Total
Server Rooms                                   1U                        Server        Hours/y                     Overhead
                                                     server (c)          Watts
                                                                                                                               kWh/y
                                             servers
Central servers                                    60         420          25,200          8,760                               220,752
Departmental servers                                2         200             400          8,760                                 3,504
Storage & other server equipment (d)                1         600             600          8,760                       0.000         0
Server/equipment sub-total                                                                                                     224,256
Server cooling overhead (e1)                                                                                           0.000
Server power supply overhead (e2)                                                                                      0.000
Server cooling & power supply overhead (e)                                                                             0.000         0
Server sub-total                                                                                                               224,256

                                                         Watts            Watts        Hours/y          Hours/y
                                                                                                                 kWh/y per     Total
PCs & Monitors                               Number     (Active,        (Standby)      (Active,        (Standby)
                                                                                                                   PC          kWh/y
                                                        idle) (f)           (f)        idle) (g)           (g)
PCs
High performance PCs and workstations              0            0                 0            0              0        0.000         0
Medium performance, standard PCs                 129           88                 3        2,040            255      180.285    23,257
Low power, green PCs                               0            0                 0            0              0        0.000         0
Managed standard PCs                               1            0                 0            0              0        0.000         0
Student green PCs                                  0            0                 0            0              0        0.000         0
Student standard PCs                             382           88                 3        1,140            950      103.170    39,411
Other Devices
Portable PCs (laptops)                            68           70                 3           18              4        1.272        86
Thin clients                                     300            7                 3        1,680            255       12.525     3,758
Monitors
CRT Monitors                                        0               0             5                0           0       0.000           0
                                                                                      Page 1
Flat (LCD or TFT) Monitors                     722          37               2         4,860         1,460     182.010   131,411
Adjustments
Aircon overhead for computer suites (g1)                                                                         0.000         0
PCs & monitors sub-total                                                                                                 197,923


                                                     Watts/unit                                                          Total
Networks                                   Number       (h)                        Hours/y                               kWh/y
Cabinet-based hubs, switches, wireless
access points & routers
Edge switches                                   53          30                         8,760                              13,928
Aggregation switches                             0           0                                                                 0
Core switches                                    1         240                         8,760                               2,102
Wireless access points                          48           8                         8,760                               3,364
Room-based switches, wireless access
points & hubs
Room based hubs                                 20          12                         8,760                               2,102
Unmanaged edge switches                          0           0                                                                 0
Power over ethernet (POE)
Power over ethernet (POE)                        1          40                         8,760                                 350
Networks sub-total                                                                                                        21,847

                                                                     Total                                               Total
Phones                                     Number Watts/unit                       Hours/y                   Overhead
                                                                     Watts                                               kWh/y
PABX distributed (i)                            80              0            80        8,760                                701
PABX cooling and power supply (j)                                                                                             0
Locally powered VOIP phones (k)                  0              0            0                                                0
Phones sub-total                                                                                                            701

                                                       Watts                       Hours/y
                                                                      Watts                       Hours/y                Total
Imaging                                    Number     (active                      (active                 kWh/unit
                                                                    (Standby)                    (Standby)               kWh/y
                                                       /idle)                       /idle)
Central services
High volume copiers (l)                          3         200               20        1,275           780     270.600      812
High volume printers (m)                         3          60                5        1,440           720      90.000      270
Student photocopiers (n)                         0           0                0            0             0       0.000        0
Departmental                                                                                             0
High/medium volume copiers/MFDs (o)             18          60               15            765       1,530      68.850     1,239
Low/medium volume copiers/MFDs (o)               0           0                0              0           0       0.000         0
Networked monochrome laser printers (p)         88          40               12            510       1,785      41.820     3,680
Networked colour laser printers (p)              6          40               12            510       1,785      41.820       251
Scanners (q)                                    13           8                2            102       2,193       5.202        68
Faxes (r)                                        4                                                                             0
Personal                                                                                                0
                                                                                  Page 2
Monochrome laser printer (s)                       0               0            0              0           0     0.000           0
Inkjet printer (s)                                 6               6            2            102       2,193     4.998          30
Laser MFD (t)                                      0               0            0              0           0     0.000           0
Imaging Sub-total                                                                                                            6,350


                                                         Watts           Watts       Hours/y        Hours/y               Total
AV                                           Number
                                                        (Active)       (Standby)     (Active)      (Standby)              kWh/y
Projectors (u)                                    55           200              5            700       8,060                 9,917
OHP (u)                                            0             0              0              0           0                     0
Plasma screens ( 61"screen) (u1)                   0             0              0              0           0                     0
AV Sub-total                                                                                                                 9,917

Breakdown of Annual ICT Energy Use, Energy Cost and Carbon Emissions by Category
Default electricity price (p/KwH) (v)            0.12                                 £147,750 annual electricity charges incl. Vat @ 5%
Default CO2 emission (kg CO2/kWh) (w)           0.537

                                             Energy                                   CO2
                                                                       Energy
                Category                       Use         %                       emissions
                                                                       Cost (£/y)
                                             (kWh/y)                                 (kg/y)
HPC                                                 0           0%               0          0
Servers                                       224,256          49%        26,911      120,430
PCs                                           197,923          43%        23,751      106,289
Networks                                       21,847           5%          2,622      11,733
Telephony                                         701           0%             84         376
Imaging                                         6,350           1%            762       3,410
AV                                              9,917           2%          1,190       5,325

TOTAL                                        460,993       100%            55,319      247,563


                               Imaging
                  Telephony     AV
                                       HPC
                 Networks
                                                                HPC
                                                                Servers
                                                                PCs
                                   Servers
                                                                Networks
                       PCs                                      Telephony
                                                                Imaging
                                                                AV


                                                                                    Page 3
Page 4
assumptions were derived.




      apple Xserver
      EMC SAN Clarion AX4, NAS, DELL MTC,




      (Busines Systems - 8 x 5 x 51 SB 1 x 5 x 51)



      Student Systems - 6 x 5 x 38 SB 5 x 5 x 38)


      TC's in use by both staff and students


                                                     Page 5
Aruba




234 ext 13 incoming Alcatel




                              Page 6
ategory
. Vat @ 5%




             Page 7

				
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