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Energy Savings & Efficiency Workshop

Energy Savings & Efficiency Workshop. Our Mission.

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Energy Savings & Efficiency Workshop

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  1. Energy Savings &Efficiency Workshop

  2. Our Mission Inspired by diverse faith perspectives to care for the natural world and its most vulnerable inhabitants, Maine Interfaith Power and Light works to engage the faith communities of Maine in efforts to counter climate change through education, advocacy, energy conservation and the use of clean renewable power 2

  3. “If humanity wishes to preserve a planet similar to that on which civilization developed and to which life on Earth is adapted… CO2 will need to be reduced from its current 387 ppm to at most 350 ppm.” NASA climatologist Dr. James E. Hansen, 2008 3

  4. Stop coal use by 2030 Dramatically reduce the use of fossil fuels Improve agricultural & forestry practices Getting to 350 by 2050… Source: Dr. James E. Hansen

  5. Getting to 350 by 2050… Dramatically reduce the use of fossil fuels through energy efficiency • Energy efficiency has great potential to… • Reduce U.S. energy use 23% by 2020 • Eliminate $1.2 trillion in waste nationwide • Avoid 1.1 gigatons of greenhouse gas emissions: like taking all U.S. cars off the road 5

  6. Energy Efficiency and You… Benefits of energy efficiency: • Increases comfort • Lowers energy bills • Promotes energy independence • Reduces CO2 footprint • AND it pays for itself! 6

  7. Energy Efficiency and You… Today we will explore… • Where to focus: I.D. priority areas for energy efficiency savings • How to get it done: completing & paying for energy efficiency work 7

  8. Priority areas for energy efficiency savings… • Heating • Building Envelope & Insulation • Hot Water • Lighting 8

  9. Heating 9

  10. Determine building/heating efficiency Calculate heating efficiency indicator (gallons per ft2) annual fuel use (gallons) square feet of heated space 10

  11. Compile heating fuel use historyNote: Energy Use Data Tracking Sheets on MeIPL website 11

  12. Determine building/heating efficiencyWhat the “efficiency indicator” means .1to.25 : efficient heating system & well insulated building: little to no action needed .25to.5 : investigate heating system efficiency & insulation: likely action needed .5to.75 : inefficient system or poor insulation: plan for action .75+: ALERT! You’re heating the outdoors: take action immediately! 12

  13. Determine building/heating efficiencyCalculating a heating efficiency indicator • EXAMPLE #1 (avg Maine home) • (annual fuel use) 1000 gals = .5 • (sq ft of building) 2000 13

  14. Determine building/heating efficiencyCalculating a heating efficiency indicatorBuilding (8,000 SF) 1,350 gallons/ 8,000 SF = 0.17 gals/SF (In floor radiant heating, R50 in attic; boiler fire rate 1.25 gal/hr) 14

  15. Determine building/heating efficiency Calculating a heating efficiency indicatorBuilding (13,000 SF) 11,600 gallons/ 13,000 SF = 0.9 gals/SF 15

  16. Improve your heating system 16

  17. Upgrade to Digital Controls • Replace manual thermostats with programmable digital: up to 3% savings! • Hire a professional to install an outdoor air temperature sensor to control boiler to smooth the transition from cold to warm:10% - 20% savings! 17

  18. Building Envelope & Insulation 18

  19. Common places for air leaks 40% of heat loss is due to air leakage 19

  20. Stack Effect 20

  21. Common places for air leaks Image adapted from http://www.energyauditgo.com/Work.html 21

  22. Common places for air leaks ice dams 22 insulation / envelope

  23. Eliminate air leaks Sill plates At a minimum insulate the sill plate area to prevent cold air infiltration 23

  24. Eliminate air leaks install door sweeps and weather stripping 24 insulation / envelope

  25. Eliminate air leaks plumbing penetrations

  26. Eliminate air leaks Can lighting Remove can lights OR build an insulated box around lights 26

  27. Eliminate air leaks Attic hatches Heat loss 27

  28. Insulate R-value = resistance to heat flow The higher the R-value the better! 28

  29. Over 20 inches of blown in cellulous R 49 R 19 Insulate Start with the attic! 29

  30. Insulate windows 30

  31. Insulate Insulated doors (R12) in place of wooden doors (R1) HEAT LOSS! 31

  32. Insulatebasement walls Heat loss through a basement accounts for 15% to 30% Masonry Foundation 32

  33. Hot Water 33

  34. Hot Water electric or gas heater boiler coil 34

  35. Hot Water Common issues and problems • Heater and pipes not insulated • Hot water heater temperature set too high • Water heated when not in demand • Water heater tied to heating system requiring boiler firing during non heating season • Constant hot water circulation 35

  36. Hot Water • Reduce hot water temperature: 120 degrees or less OK • Install a timer on your hot water tank: • One congregation saved $700 in a year • One congregation spent $150 on a timer and saw a 2 month pay back 36

  37. Hot Water On demand, tankless heaters • Heat water directly without the use of a storage tank • No standby heat losses • Delivers constant supply of hot water • Cost about 10 to 20 % less to operate than standard tank water heaters • 7 year pay back 37

  38. Hot WaterInsulate hot water piping Heat loss with no insulation 38

  39. Lighting 39

  40. Lighting • Turn off lights • Adjust lighting levels to match needs and remove un-needed lighting • Make use of free day lighting • Use high reflectance ceiling tiles and light colors to carry daylight into interior space. 40

  41. Lighting Replace incandescent bulbs with compact fluorescents wherever possible. 41

  42. Special Considerations for Faith Communities 42

  43. Special Considerations for Faith CommunitiesSchedule activities on common days to save energy 43

  44. Special Considerations for Faith Communities Sanctuary ceilings often a problem area Sanctuary Ceiling R 1? 44

  45. Special Considerations for Faith CommunitiesAir circulation • Airius Thermal Equalizers • Stabilize temperature (Ceiling temperature 5 to 10 degrees warmer than floor) • Reported fuel oil savings 10-20% • Available at Maine Green Building Supply in Portland 45

  46. T-5 T-12 Special Considerations for Faith CommunitiesLighting • Replace T-12 fluorescent fixtures with T-8 fixtures and electronic ballasts. • Replace incandescent and fluorescent exit signs with LED signs. T-8 46

  47. Special Considerations for Faith CommunitiesLighting: install occupancy sensors • Install occupancy sensor switches in seldom used areas: • Install controls on exterior lights. • Install motion sensors, time clocks, or photoelectric sensors on exterior parking lots and security lighting. 47

  48. Special Considerations for Faith CommunitiesSt. Margaret's Episcopal Church, Belfast, Maine 48

  49. Energy Efficiency Assistance 49

  50. Assistance for Faith Groups • Energy audits • Low interest loans • Rebates & incentives • Renewable energy grant Efficiency Maine at 1-866-376-2463 www.efficiencymaine.org 50

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