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Energy Future @ Carleton

Explore Carleton's energy use from 1987-2003, emission sources, and proposed efficiency strategies. Discover cost trends, emission data, and transition plan details for a sustainable future.

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Energy Future @ Carleton

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  1. Energy Future @ Carleton By Richard Strong, Director of Facilities

  2. Minnesota Fuel Mix for Electricity

  3. Carleton Energy Use 1987-2003

  4. Carleton Energy Use 1987-2003

  5. Carleton Energy Use 1987-2003

  6. Cost for Energy 1900-2002

  7. Cost per CCF of Natural Gas

  8. Total Annual Cost of Natural Gas

  9. Monthly Electrical Usage

  10. Summer Daily Electrical Usage

  11. Winter Daily Electrical Usage

  12. Cost per KWH of Electricity

  13. Annual Cost for Electricity

  14. Total Energy Costs

  15. Carleton Emissions Survey • Total GHG emissions have increased by nearly 40% since 1990. • Emissions per student, increased from around 8 metric tons/student to almost 12. • Electricity emissions increased even when additional building area was accounted for.

  16. Emissions per Student

  17. Emissions per Building Area

  18. Heating and Electrical Emissions per Building Area

  19. Carleton’s Emissions Sources

  20. Transportation GHG Emissions Breakdown(in metric tons eCO2)

  21. If We Believe This 2006

  22. Or If We Believe This

  23. And If This Happens World Population Growth, 1750–2150 Source: United Nations, World Population Prospects, The 1998 Revision; and estimates by the Population Reference Bureau.

  24. And This Happens at the Same Time

  25. And This… Should the U.S. Fear Rise of China, India? AMERICANS are having another Sputnik moment: One of those periodic alarms about some foreign technological and economic menace. It was the Soviets in the 1950s and early 1960s, the Germans and the Japanese in the 1970s and 1980s, and now it's the Chinese and the Indians. -Robert Samuelson, The Business Times, 26 May 2005

  26. And If Economics Works in This Case 17 Years 2006 2023

  27. Energy Transition Plan • We need a transition plan for 1-15 year time period, 2006-2020 • Phase One – Conservation/Reduction • Phase Two – Efficiency/Conversion • Phase Three – Transition

  28. Phase 1: 2006-09 Conservation • Lower temperature in the winter (680F)/higher in the summer (780F) • Manage plug load • Good management practices • Calibration of system • Building new buildings at 40,000 BTU/Sqft rather than the 98,000 BTU/Sqft average • Change lighting sources (same light for less energy) CFL/Super 8s

  29. Phase 2: 2010-13 Efficiencies/Conversion • Hedging on energy markets • Interruptible electric energy sources • Additional Building Insulation • Metering and Building controls • Double/Triple pain windows • Co-Generation (on campus, within the community) • Additional wind turbines interconnect to the campus • Commissioning of systems

  30. Phase 3: 2014-2020 Year Transition • Rebuilding building systems • Self generation of energy • Alternate fuels • Hydrogen • Bio-Mass • Ethanol • Solar • Wind • Bio-Diesel

  31. Common Energy Conservation • Energy Paybacks • 1-2 Years Seal Air Leaks (Looking at this) • Seal Ducts (Looking at this) • Programmable Thermostat (Building Automation System) • Insulated Water Heaters (We don’t have Water Heaters) • Heating Tune up (Commissioning of Science Buildings) • Efficient Shower Heads (Start Program) • 2-5 Years Flooring Insulation (Not Possible) • 3-7 Years Ceiling Insulation (Change with re-roofing) • 4-10 Years Storm Windows (Have completed) • 5-20 Years Furnace Replacement (When they reach their life cycle) • 6-12 Years Wall Insulation (Difficult) • 15-20 Years Window Replacement

  32. Energy Proposals • CO2 Detectors plus Drives at: Recreation Center, West Gym, Cowling Gym, Hullings and Library • Commissioning Studies at: Hullings, Mudd, Olin, Library, and Leighton • Pools Covers at: Cowling and West Gym • Metering of all Buildings • Lighting Retofits at: Recreation Center, West and Cowling Gym • Steam Trap Replacement

  33. Three Challenges for the Next 15 Years • Where to prioritize our efforts in short run • When to invest in newer technologies • Opportunity to save against future price increases vs. ongoing cost reductions and improved efficiencies as technologies mature • Building Collaborations that benefit Carleton and expand our market and economic base – eg. Other colleges or organizations in Northfield or beyond.

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