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					District Energy Forum
   Arlington County, VA
      November 14, 2011
   Saint Paul’s Community Energy System
• Serving Saint Paul customers
 since 1983
• North America’s largest hot
 water district energy system
• Minnesota’s leading biomass,
 renewable energy system
• A model for integration of
 renewable energy, combined
 heat and power and a district
 energy system                   Biomass Fired CHP in Downtown Saint Paul


 District Energy St. Paul                    www.districtenergy.com
                      Our Mission

 “Be the preferred
    provider of
community energy
      services
  that benefit our
    customers,
the community and
 the environment.”

District Energy
11/21/2011 St. Paul                 www.districtenergy.com   3
                    District Energy Organization




                    Customers                                    City of Saint Paul




                Board of Directors                                  Board of Directors
          District Energy St. Paul, Inc.                      District Cooling St. Paul, Inc.


                                              President
                                           Kenneth W. Smith




District Energy St. Paul                                         www.districtenergy.com
               First Heating Customers - 1983




District Energy St. Paul            www.districtenergy.com
               First Cooling Customers - 1993




District Energy St. Paul            www.districtenergy.com
Combined Heat & Power Startup - 2003




District Energy St. Paul   www.districtenergy.com
                  Solar Thermal Startup - 2011




District Energy St. Paul              www.districtenergy.com
               Heating and Cooling Saint Paul




District Energy St. Paul            www.districtenergy.com
                           Customer Growth




District Energy St. Paul                www.districtenergy.com
                           In 2009, District Energy St. Paul hosted visitors from 38 countries.


District Energy St. Paul                                    www.districtenergy.com
                           Integrated Energy System




District Energy St. Paul                    www.districtenergy.com
        District Energy Enables Integration
         of Diverse Local Energy Sources




District Energy St. Paul        www.districtenergy.com
            Integration of Biomass-Fueled
               Combined Heat & Power
                             12,000 truckloads of clean wood
                            residue diverted annually from the
                                      waste stream.




District Energy
11/21/2011 St. Paul                www.districtenergy.com   14
               Energy Lost During Generation
                       of Electricity




District Energy St. Paul           www.districtenergy.com
District Energy St. Paul   www.districtenergy.com
District Energy St. Paul   www.districtenergy.com
                           Energy Efficiency of CHP

                                         ELECTRICITY          33%
                           FUEL          WASTED
                                                              67%
                                          HEAT

                                         ELECTRICITY          30%
                           FUEL           THERMAL             45%
                                           WASTE              25%

District Energy St. Paul                        www.districtenergy.com
                     Biomass – Why wood fuel?
• Large quantities in metro area

• Diversify energy sources

• Clean wood waste diverted from
    landfills
• Economically viable
• Reduce GHG emissions
• Created new industry that puts up
    to $12 million annually into local
    economy



District Energy St. Paul                 www.districtenergy.com
                   Integration of Solar Thermal




District Energy St. Paul               www.districtenergy.com   20
                           Fuel Diversification

                Before and After Wood-Fired CHP Project




District Energy St. Paul                    www.districtenergy.com
          Importance to of renewable
3. How important is our usage Customers
                  fuels?
  How important is our usage of renewable fuels?
           2%


            22%                    Very Important
                                               Very Important
                                   Somewhat Important
                                        Somewhat Important

                                   Not Important
                                         Not Important


                             76%


  District Energy St. Paul               www.districtenergy.com
                           Satisfied Customers
“District Energy St. Paul's founding principles--energy efficiency,
environmental stewardship, stable rates, reliability and customer
service--and the company's track record of meeting them day in
and day out, allow Travelers to locate many people here in Saint
Paul. Because of District Energy's reliability, we can also locate
vital information technology equipment operations in downtown
Saint Paul where a unique setup allows us to meet our business
needs in the most cost-efficient manner."

                           Jim Scannell, Senior Vice President
                                      Administrative Services
                                                    Travelers

District Energy St. Paul                                         www.districtenergy.com
                                  Energy Efficiency

                     Fuel Consumption per Service Area
                      Fuel Consumption per Square Foot
                                (kBtu/ft2)2)
                                 (kBTU/ft
        55.0
                           52.3

        50.0                         48.5


        45.0                                43.3       Fueluse per square foot
                                                        Fuel use per Unit Area
                                                        (kBtu/sq ft)
                                                       (kBtu/sq ft)
        40.0


        35.0
                           1989     1999    2009



District Energy St. Paul                           www.districtenergy.com
                          Customer Service

“Over the years District Energy
and District Cooling have been
a great energy source for us,
with stable rates and customer
service staff who work with
building owners to meet their
needs. The CHP plant is great.
It’s a fantastic concept and a
real win-win situation for
everyone.”

Pat Wolf & Don Craft
Golden Rule Building


Advancing Energy Through Integration TM
 District Energy St. Paul                 www.districtenergy.com
                                         Stable Rates

            District Energy St. Paul



                                                    District Cooling St. Paul




                           Fiscal Year




District Energy St. Paul                                www.districtenergy.com
District Energy St. Paul   www.districtenergy.com
             Utilities Remain Cautious About
                        Natural Gas
“The electric utility sector remains cautious about committing to
gas-fired generation because of the fuel’s volatile price history
and the ongoing controversy over hydraulic fracturing, Xcel
Energy’s top fuel buyer told a gas industry meeting in Denver.
‘We have long memories in the utility business,’ Xcel Vice
President for Fuels Susan Arigoni told the Colorado Oil & Gas
Association’s annual meeting Tuesday. ‘We are not paid for
taking risks with fuel.’ While Minneapolis-based Xcel’s future
plans call for gas to account for a greater share of the company’s
overall fuel purchases, the utility will focus on displacing coal-
fired capacity with renewable energy sources, Arigoni said.”

                                     Gas Daily: August 3, 2011
District Energy St. Paul                    www.districtenergy.com
District Energy St. Paul   www.districtenergy.com
Source: EIA, 2009
District Energy St. Paul   www.districtenergy.com
Courtesy: Dr. Massoud Amin, University of MN

    District Energy St. Paul                   www.districtenergy.com
Courtesy: Dr. Massoud Amin, University of MN

    District Energy St. Paul                   www.districtenergy.com
                                Electricity Rates
                              FY-2009 to FY-2011
 Electricity % Increase
 15.0%


 10.0%


   5.0%


   0.0%
             Oct-08 Dec-   Feb-   Apr-   Jun-   Aug- Oct-09 Dec-   Feb-   Apr-   Jun-   Aug- Oct-10 Dec-   Feb-   Apr-
                     08     09     09     09     09          09     10     10     10     10          10     11     11

  -5.0%


-10.0%

                              12-Month Change                      Average 12-Month Change

District Energy St. Paul                                                         www.districtenergy.com
                       Benefits of District Energy

• Enables integration and unlocks efficiency gains
• Stable and economical rates
• Improves security and reliability
• Simplifies operations and reduces space
  requirements
• Reduces emissions
• Solution for today with flexibility for tomorrow


District Energy St. Paul                   www.districtenergy.com
                  Connection Requirements




District Energy St. Paul          www.districtenergy.com
                  Connection Requirements




District Energy St. Paul          www.districtenergy.com
                           Space Considerations




District Energy St. Paul                  www.districtenergy.com
  Comparing Conventional Heating/Cooling
            vs. District Energy
                                 Conventional            District Energy
      Life Cycle Cost Analysis
  Economic assessment of           Capital
  alternatives that considers                                    Fixed
  all of the significant costs      O&M
                                                                Capacity
                                                                Charges
  of ownership over the
  useful life expressed in
  equivalent dollars.
      – initial costs              Variable                     Variable
                                                                Energy
      – financing costs            Energy

      – operational costs

District Energy St. Paul               www.districtenergy.com
  Comparing Conventional Heating/Cooling
            vs. District Energy




District Energy St. Paul   www.districtenergy.com
                                Thank You!



                             Kenneth W. Smith, President and CEO
                               76 Kellogg Blvd W, Saint Paul, MN 55102
                       ken.smith@districtenergy.com ~ www.districtenergy.com


District Energy St. Paul                                       www.districtenergy.com
        Why is community based
  infrastructure and the integration of
  local energy sources so important to
       securing our energy future?



District Energy
11/21/2011 St. Paul        www.districtenergy.com   41
                                       63.3%   30.5%

                          36.7%                        49.5%



                                                       50.5%




Source: https://flowcharts.llnl.gov/
                                               31.9%
                                                              41.5%

                                       68.1%                              55%



                                                                          45%




Source: https://flowcharts.llnl.gov/

District Energy St. Paul                         www.districtenergy.com
                                                32.2%
                                                                    45.5%

                           67.8%                                                  59.1%




                                                                                  40.9%




                             Source: https://flowcharts.llnl.gov/

District Energy St. Paul                                 www.districtenergy.com
                                                31.6%
                                                           47.8%
                                        68.4%
                                                                           57.8%


                                                                           42.2%




 Source: https://flowcharts.llnl.gov/


District Energy St. Paul                          www.districtenergy.com
                                        13      31.7%                      60.5%

                                        68.3%                      37.9%

                                                                           39.5%




 Source: https://flowcharts.llnl.gov/


District Energy St. Paul                          www.districtenergy.com
Courtesy: Dr. Massoud Amin, University of MN

    District Energy St. Paul                   www.districtenergy.com
Courtesy: Dr. Massoud Amin, University of MN

    District Energy St. Paul                   www.districtenergy.com

				
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