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Walk-round Checklist and Tips


									                      Walk-round Checklist and Tips

   This is a list of useful checks that you can make on your building just by walking
   around and observing how it is being used, with advice on simple energy saving
   measures that you can adopt.

1. Lights on or off
   Check: Walk around the building outside of normal opening hours.
   How many room lights were on? Was this justified by cleaning or other authorised
   activities? Could the lights have been on all night?
   Tip: Cleaning contracts should require that lights are only on in the area being
   actively cleaned, and in areas needed for safe circulation and/or security. No other
   lights should be on.

2. Light near windows
   Check: Walk around the building during normal opening hours.
   How many room lights were on and was this justified by occupancy? If there is good
   daylight, there is no need for artificial lighting on desks located up to a distance of 1.5
   to 2.0 times the window height away from the window.
   Tip: Consider installing lighting controls that sense daylight and occupancy.

3. Blinds-down & lights on
   Check: Scan the building façade for any windows where the blinds are down (and
   possibly artificial lighting is on), especially early in the morning.
   Tip: Give someone the duty to raise all the blinds before the start of each working
   day. If necessary provide for exceptions only under written instruction.

4. External lights
   Check: Ensure that all external lights in day-lit areas go off during the day.
   Tip: Check controls are correctly set and consider installing an over-ride switch.

5. Internal lights in common-use areas
   Check: Internal lights in common-use areas should be switched off during the
   working day if sufficient daylight exists. If some are on identify why and who has the
   authority and duty to switch them off.
   Tip: Consider installing occupancy and/or light-level controls.

6. Artificial lighting
   Check: look for ‘strawberry and vanilla’ colours in fluorescent lamps. There is a good
   chance that purchasing policy has not specified the right types of tubes.
   Tip: Specify tri-phosphor tubes – they cost a little more but can last 12,000 hours
   instead of 6,000hours – and maintain their brightness for far longer. If this is the
   situation, also check if specifications for other building services maintenance are
   competent and if the actual standard of maintenance carried out is adequate.

7. Overnight electricity use
   Check: In a typical office, reasonably good practice is for overnight use of electricity
   in kWh to be less than 11% of day-time peak use (eg. late morning just before lunch).
   Tip: Read the electricity meter, and work out the consumption rate. Seek help from a
   Low Carbon Consultant or competent advisor if necessary. If half-hourly meter data is
   available, this will provide the information. Work out what is using electricity overnight
   and if it is justifiable, and if not, get it turned off, perhaps with a time-switch.

8. Water waste:
   Check: When water use is low (eg overnight or during holiday periods) check the
   water meter to see how many litres per minute are being recorded. Avoid periods
   whilst storage tanks are re-filling. There is a good chance that the majority of this use
   will be leaks - leaking underground water pipes, leaking taps, leaking ball valves in
   cisterns etc.
   Tip: A ball-park guide is that overnight consumption should be no more than 1.0 litre
   per person overnight. Sometimes, water authorities provide an initial leak survey at
   no cost or low cost. An indicator of water leakage would be greener grass areas in
   dry summer months.

   Heating, Cooling and Ventilation

9. Windows open to dump overheat
   Check: Scan the building façade in naturally ventilated buildings. How many windows
   are open (differentiate from just slightly open to provide ventilation) during the day in
   cold weather? Establish if the open window(s) are dumping excess heat from
   incorrectly controlled paid-for heating? If the heating is zoned, are the windows open
   in just one zone because the heating controls have failed in that zone?
   Tip: Nominate someone to close / lock the windows at night as a building security

10. Cold air coming in via street doors
    Check: Walk in through the external door in cold weather. If the doors open to a high
    entrance hall, is there any perceivable inward draught as the door is first opened. If
    so, then this is a sign that cold air is coming in to replace warm air that is escaping at
    higher levels.
    Tip: By a process of deduction using open/closed internal doors, identify where the
    warm air is leaving the building.

11. Wall & window fans – no shutters
    Check: Can you see through the fan aperture when the fan is not operating. Look for
    internal lights if dark outside. If so, will it allow a substantial heat loss because the
    shutter is missing or broken?
    Tip: Decide if this is wanted ventilation

12. Window arrangement (naturally ventilated rooms)
    Check: For good summertime ventilation which will help reduce summer over-heat,
    the windows must open near the ceiling, as well as lower down. Hot air rises – check
    where the low level inlet and high level outlet is. If it does exist, is the window close
    enough to the ceiling to allow hot air to escape?
    Tip: A substantial part of the window opening must be within 200mm of the ceiling if
    the ceiling is to remain cool on hot days.

13. Wasted heat:
    Check Feel the radiators /convectors when entering the building in the heating
    season. Are any unexpectedly hot or cold? Record the pattern of hot and cold
    radiators during the occupied day.
    Tip: If the heated space is warm enough, and the radiator is still hot, then you are
    paying for that wasted heat.
14. Room temperature checks:
   Check the temperature using strategically placed room temperature thermometers.
   Ensure they are not adversely heated by the sun, or by heat coming from office
   Tip: If the rooms are overheated on warm days or in very cold weather, this can
   indicate incorrectly set heating controls.

15. Wall insulation check:
   Check Use a low cost infra-red thermometer when the outside air temperature is
   colder than 8ºC, to check the inside walls. Check for possible draught sources around
   windows and in ‘cold’ corners avoiding areas that are obviously heated by radiators,
   equipment or the sun.
   Tip: In a reasonably insulated building, all internal surfaces should be no more than
   2ºC colder than the air temperature in the middle of the room. If much colder than
   this, the insulation may be poor, or impaired by wet or missing building fabric /
   thermal insulation. The same check can be done from the outside of a building but is
   far more prone to error due to clear night sky cooling the wall, sun heating the wall or
   due to cooling from the wind. It is advisable to use experts for outside checks.

16. Heating and air-con equipment during holidays:
   Check what equipment is running during holiday periods or days when the building is
   un-occupied. If controls have annual schedules, get maintenance to enter holiday
   periods. If the intruder alarm is a problem, put some thermometers with large digits
   just inside windows that can be seen without entering the building.
   Tip: Note any occurrences and ensure action is taken. Give someone the duty to
   ensure heating is off when the building is not occupied – eg at weekends, bank
   holidays, Christmas to the New Year.

17. Cleaners to monitor heating: Ask cleaners to record any areas that are heated
    when your schedule identifies otherwise.
    Tip: Add that duty in the cleaning contract and make sure you receive the report(s).

18. Avoidable waste of heating:
   Check Use temperature logging equipment to measure the temperature occasionally.
   Tip: Examine the report that identifies any avoidable energy waste from excess
   temperature or heating.

19. Space temperatures: Check the building with an infra-red thermometer to ensure
    that space temperatures are properly maintained. Do this ad-hoc – eg when walking
    around the building as part of a normal day-to-day activity.
    Tip: If any disputes (people too hot / cold), use CIBSE KS6: Comfort to help
    understand occupant’s needs.

20. Boiler-rooms / plant rooms: Check to ensure that they are not hot in warm weather.
    If hot, identify why they are getting hot
    Tip: Install insulation / make repairs / adjust controls as necessary.

21. Desk fans indicative of summer overheating: Does the air-conditioning need
    adjustment / balancing?
    Tip: Look for desk fans – ask yourself why they are needed

22. Electric Fires – unauthorised: Run an occasional physical sweep for electric fires.
    First action is electrical safety related – if they have not been PAT tested remove
    Tip: Check for draughts and inadequate heating – there may be real justification for
    wanting a fire.
   Office equipment

23. Computers left-on 24/7:
    Check: At typical energy costs, a desktop computer costs £120/year to run if left on
    24 hours/day or £40/year if only on for business hours.
    Tip: Ensure EnergyStar is operational on computers, screens and printers. Make
    sure the IT department use ‘wake-on-lan’ to wake up the computer for the time
    necessary to install updates.

24. Office equipment:
   Check how many items of office equipment have been left overnight unnecessarily.
   Check if energy consuming equipment (such as water heaters and refrigerators) is
   left on for extended hours or run continuously, and question why. Check hot water
   boilers, refrigerators for unexpectedly hot or cold operation and insulate or repair as
   Tip: Put a label or sign onto wastefully operated equipment. Make sure office
   equipment is switched off outside of working hours

25. Equipment purchasing policy:
     When purchasing equipment check the setup / adjust standby capabilities to
    minimise energy waste. Domestic equipment such as refrigerators and dish-washers
    should be ‘A’ rated. Kettles for use by individuals should be smaller – suggest 0.5
    litres to 1.0 litre capacity with 600W to 1.2kW heating elements. Consider if a wall
    mounted hot water boiler would be simpler and cheaper.
    Tip: Give preference to equipment that is energy efficient, has low standby
    consumption etc

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