A FUTURE WITH DISTRICT ENERGY: How to Make it Work ANDERS RYDAKER Executive VP, Sustainable Energy Solutions Ever-Green Energy, LLC Twitter hashtag: #ps10
OUTLINE British Columbia Targets for Conservation and GHG Reduction How Can District Energy Help? District Energy St. Paul s Success Story
BRITISH COLUMBIA TARGETS FOR CONSERVATION 66% of new electricity demand has to be achieved by conservation GHG reduction 30% by 2016
WHAT IS DISTRICT ENERGY?
THE CHANGING SYSTEM CHALLENGES OPPORTUNITIES Isolated Energy Production Fossil Fuel Use Carbon/GHG Emissions Energy Losses Conservation & Efficiency Expanding Renewables System Integration Economic Incentives
INTEGRATED COMMUNITY ENERGY SYSTEM
BENEFITS OF INTEGRATED ENERGY SYSTEMS Increase energy efficiency, reduce primary energy consumption and associated GHG emissions Enable beneficial use of surplus thermal energy from dispersed sources Ease transition to use of renewable energy Enables energy storage and smoothing of energy peaks Achieve significant energy conservation and GHG emissions reductions using currently available technology
THERMAL STORAGE
SOLAR THERMAL INTEGRATION 2010: Design & Installation of the Midwest s Largest Solar System
INTEGRATE A DIVERSITY OF RENEWABLE SOURCES
INTEGRATED SOLUTIONS: SWEDEN 100% Energy Input for District Heating (Sweden) 80% 60% 40% Waste Heat Heat Pumps Electric Boilers Biomass Coal Natural Gas Oil 20% 0% 1970 1975 1980 1985 1990 1995 2000 2005
DISTRICT ENERGY ST. PAUL MISSION Be the preferred provider of community energy services that benefit our customers, the community and the environment.
CITY OF SAINT PAUL
HEATING & COOLING SAINT PAUL
COMPANY STRUCTURE Renewable Energy Innovations St. Paul Cogeneration Environmental Wood Supply
BROAD CUSTOMER BASE 31.7 Million Sq Ft 187 Customers + 300 Residential* 19.3 Million Sq Ft 98 Customers
DISTRICT ENERGY RESULTS TODAY Serves more than 80 percent of the downtown area - over 31 million sq. ft. Eliminated more than 150 smokestacks Reduced sulfur dioxide and particulate emissions by more than 60 percent Twenty-seven years of outstanding reliability and rate stability
DISTRICT ENERGY FY-10 CUSTOMER RATES Combined Rate Summary, FY-1998 to 2010 $0.080 $ Per kwh $0.060 $0.040 $0.020 $0.000 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Demand Charges Fiscal Energy Year Charges
DISTRICT COOLING ST. PAUL
DISTRICT COOLING RESULTS TODAY Chilled-water demand started at 2,900 tons and has increased to 29,000 tons Serving more than 60% of the downtown area approximately 19 million sq. ft. Chilled water system includes 6.5 million gallons of storage capacity Thermal storage reduced peak-electric demand by as much as 9,000 kilowatts
DISTRICT COOLING FY-10 CUSTOMER RATES Combined Rate Summary, FY-1998 to 2010 $0.40 $ Per Ton-Hour at 1200 Utilization Hours $0.30 $0.20 $0.10 $0.00 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Fiscal Year Demand Charges Energy Charges
BIOMASS-FIRED CHP Saint Paul uses up to 300,000 tons per year of clean, renewable, urban wood residue.
ST. PAUL COGENERATION 25 MW of electricity Renewable, clean, urban wood residue Double the efficiency of conventional electricityonly power plants Greenhouse gas CO reduced by 280,000 tons Greenhouse gas CO 2 reduced by 280,000 tons per year
FUEL DIVERSIFICATION: BEFORE & AFTER CHP
CUSTOMER & PLANT ENERGY 60,000 50,000 40,000 30,000 20,000 10,000 0 1988 2008 BTU per sq ft CONSERVATION Switching Saint Paul from steam to hot water in 1983, decreased energy consumption >20% Additional reduction of 29% from 1988 to 2008 Combined customer and plant improvements >50% savings
2010 CUSTOMER SURVEY: IMPORTANCE OF RENEWABLE FUELS USAGE 2% Very Importa nt 22% Somewhat Important Not Importa nt 76%
2010 CUSTOMER SURVEY: RENEWABLE ENERGY RATE OPTION 5% Yes 48% 47% Maybe, but it depends on many factors Not Interested
IMMEDIATE INTEGRATION OPPORTUNITY: INTEGRATED ENERGY CORRIDOR District Energy St. Paul Integrated Energy Corridor Opportunity Rock-Tenn Recycling Biomass Fired CHP Plant
CONCLUSION Achieving long-term efficiency and GHG reduction goals requires an integrated energy strategy District energy is an excellent tool in the toolbox to attain the goal
THANK YOU! ANDERS RYDAKER anders.rydaker@ever-greenenergy.com Twitter hashtag: #ps10