College campus energy & climate plan


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College campus energy & climate plan

  1. 1. College Campus Energy/Climate Plans
  2. 2. Overview <ul><li>A comprehensive approach to GHGs </li></ul><ul><ul><li>Energy & GHG baseline / benchmarking </li></ul></ul><ul><li>ACUPCC </li></ul><ul><ul><li>College and District energy/GHG goals </li></ul></ul><ul><li>Foothill College energy system </li></ul><ul><ul><li>Existing low carbon infrastructure (cogen) </li></ul></ul><ul><ul><li>What a 1MW system provides (and costs) </li></ul></ul><ul><ul><li>Ridesharing program for students/staff </li></ul></ul>
  3. 4. How Did We Get Started? <ul><li>Energy data back to 1990 </li></ul><ul><ul><li>(Foothill College / De Anza College) </li></ul></ul><ul><ul><li>Facilities interest in utilities / efficiency </li></ul></ul><ul><li>Electricity and natural gas </li></ul><ul><ul><li>kWh and therms </li></ul></ul><ul><ul><li>Converted to BTU/sq-ft </li></ul></ul><ul><li>Index against other metrics </li></ul><ul><ul><li>Enrollment, building renovation, energy costs </li></ul></ul>
  4. 5. Foothill College Energy System <ul><li>Cogeneration </li></ul><ul><ul><li>Four C60 Capstone Microturbines </li></ul></ul><ul><li>Four solar PV arrays </li></ul><ul><ul><li>100Kw, 440Kw, and 1MW (400kw/600kw) </li></ul></ul><ul><li>Energy Management System (EMS) </li></ul><ul><ul><li>Intelligent monitoring and feedback </li></ul></ul><ul><li>Building Management Controls (BMS) </li></ul><ul><ul><li>Use energy when and where it’s needed </li></ul></ul>
  5. 6. Foothill Campus Energy Roadmap Foothill College is an ideal test bed for innovative energy technology for clean generation, smart distribution, and efficient end use
  6. 7. Energy and GHG Baselines <ul><li>Look at your utility bills </li></ul><ul><ul><li>Natural gas (therms) and electricity (kWh) </li></ul></ul><ul><ul><li>Use the ‘previous 12 months’ to save time </li></ul></ul><ul><li>Convert therms / kWh to BTU & GHGs </li></ul><ul><ul><li>Use a standard conversion chart (very easy) </li></ul></ul><ul><li>Next calculate BTU/assigned sq-ft </li></ul><ul><li>Put everything in an Excel spreadsheet </li></ul>You can do this task in a few hours if you have access to your utility bills
  7. 8. Foothill Energy / GHGs <ul><li>7.7 million kWh electricity total </li></ul><ul><li>6.6 million kWh imported electricity </li></ul><ul><li>~ 760K kWh cogen </li></ul><ul><li>~ 711K kWh solar PV </li></ul><ul><li>~400,000 therms of gas (half are used for cogen </li></ul><ul><li>~ 2 million kWh solar PV year will be produced </li></ul><ul><li>6.6 million pounds of CO 2 (1 pound / kWh) for imported electricity </li></ul><ul><li>4.7 million pounds CO 2 (11.7 pounds CO 2 per therm)~400,000 therms of natural gas </li></ul><ul><li>~650,000 sq-ft </li></ul><ul><li>~100,000 BTU/sq-ft </li></ul><ul><li>2/3 GHGs are driving </li></ul>These 10-11 estimates are not based on an audited GHG reporting
  8. 9. /
  9. 10. Climate Action Plan (CAP) <ul><li>Fun to do! </li></ul><ul><li>Study other CAPs </li></ul><ul><li>AASHE/ACUPCC </li></ul><ul><li>Target energy consumption (BTU/sq-ft, kWh/sq-ft, etc) </li></ul><ul><li>Target GHG emissions (GHGs/FTES or sq-ft) </li></ul><ul><li>Rideshare programs </li></ul>Writing a plan is about analysis, synthesis, reflection, and setting a direction
  10. 11. Foothill Climate Action Plan <ul><li>Energy efficiency </li></ul><ul><li>PV and cogen </li></ul><ul><li>Transportation plan </li></ul><ul><li>Source clean electricity (PG&E) </li></ul><ul><li>Smart energy tools </li></ul><ul><li>Waste stream </li></ul><ul><li>Smart office </li></ul><ul><li>Smart classroom </li></ul><ul><li>GHG sequestering </li></ul><ul><ul><li>Carbon offsets </li></ul></ul><ul><li>Supply chain </li></ul>A CAP is your action plan to achieve measureable results on a timeline that makes sense for your organization, city, family, or even a personal action plan
  11. 12. Why do Cogeneration? <ul><li>If you have a thermal load (swimming pool, district heat, large hot water use) </li></ul><ul><li>Make your own electricity </li></ul><ul><ul><li>Use waste gas to heat the pool </li></ul></ul><ul><ul><li>Get ‘free’ emission free electricity </li></ul></ul><ul><li>Or make electricity and heat the pool </li></ul><ul><ul><li>=> Actually get emission free electricity </li></ul></ul>You can make electricity and heat your pool at the same time, and get SGIP credit
  12. 13. Cogeneration Principle
  13. 14. Foothill Solar PV Projects <ul><li>100 KW </li></ul><ul><ul><li>Parking lot 2a </li></ul></ul><ul><ul><li>~140K kWh / annually </li></ul></ul><ul><li>440 KW </li></ul><ul><ul><li>Parking lot 1h </li></ul></ul><ul><ul><li>~ 610K kWh / annually </li></ul></ul><ul><li>1,000KW </li></ul><ul><ul><li>Parking lots 2/3 </li></ul></ul><ul><ul><li>~1,600K kWh </li></ul></ul><ul><li>Developer (unknown) </li></ul><ul><ul><li>Completed 2007/8 </li></ul></ul><ul><ul><li>Cost est* (~$1M) </li></ul></ul><ul><li>Developer (Chevron?) </li></ul><ul><ul><li>Completed 2009 </li></ul></ul><ul><ul><li>Cost est* (~$3M) </li></ul></ul><ul><li>Developer (Chevron) </li></ul><ul><ul><li>Completed 2010/11 </li></ul></ul><ul><ul><li>Cost est* (~$7-9M) </li></ul></ul>Cost estimates are based on then current installed $/watt, doesn’t include parking upgrades
  14. 15. Value of Solar PV <ul><li>Solar PV production tracks HVAC load </li></ul><ul><li>Starts mid morning, peaks late afternoon </li></ul><ul><li>Offsets natural gas (expensive fuel) </li></ul><ul><li>Avoids highest power rates (TOU) </li></ul><ul><li>Decreases stress on the power grid </li></ul>It is very expensive but makes sense when bundled into building upgrades. Payback periods depend on current/future energy costs and how you finance it.
  15. 16. Itron Interval Data 3/1 - 4/15 1 MW PV arrays came online at the very end of March 2011
  16. 17. Electrical Energy Contracts <ul><li>PG&E delivers your electricity, but it might be ‘sourced’ from an out of state contract (CNE) </li></ul><ul><li>We are assed 1 pound CO 2 per kWh (reflects combination of coal, nuclear, and natural gas) </li></ul><ul><li>Fuel switching lowers GHGs, but contract switching only lowers your assessed GHGs </li></ul><ul><li>With Direct Access you can purchase clean energy (wind) but avoid RECs as a GHG tool! </li></ul>
  17. 18. Social Transportation Tools <ul><li>60% of your GHG emissions are from transportation (scope III or indirect emissions) </li></ul><ul><ul><li>Indirect emissions can be influenced </li></ul></ul><ul><li>Ridesharing reduces VMT/GHGs, and improves parking congestion </li></ul><ul><li>You save a pound of CO 2 per mile not driven – for whatever reason </li></ul>
  18. 20. Ridesharing Culture Social engineering for a world with fewer cars, less petroleum, and a genuine desire to collaborate
  19. 21. Social Transportation Networks => Tools Flows of vehicles that have positions and paths Flows of people that have schedules and destinations V (P,P) <= Social Transportation Tools => P (S,D)
  20. 22. Ridesharing Corridors San Francisco San Jose De Anza Foothill Skyline Daly City Palo Alto Cupertino
  21. 23. Summary <ul><li>Start with energy audit, convert to GHGs </li></ul><ul><li>Determine BTU per sq-ft (benchmark) </li></ul><ul><li>Publish your GHG and CAP => ACUPCC </li></ul><ul><li>Use cogen if you have a swimming pool </li></ul><ul><li>Get an EMS/BMS in place and ‘tuned’ </li></ul><ul><ul><li>Separately meter / monitor buildings* </li></ul></ul><ul><li>Purchase PV in reasonable amounts </li></ul><ul><li>Develop / support a ridesharing culture! </li></ul>* This might be part of LEED construction or energy efficiency renovation
  22. 24. References <ul><li>AASHE - </li></ul><ul><li>ACUPCC - </li></ul><ul><li>APPA facilities - </li></ul><ul><li>Capstone - </li></ul><ul><li>Chevron energy - </li></ul><ul><li>GHG protocol - </li></ul><ul><li>PG&E - and </li></ul><ul><li>Zimride - </li></ul>