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D Gibson presentation to UNR Renewable Energy minor April 06, 2016

Powered by Sunshine: Net-Zero Energy Homes as a step toward 100% Renewable Energy

This provides an overview of how David has taken his home in Reno from inefficient 1950's construction down to net-zero energy. It also shows how Nevada can adopt the same long-term goals and radically transform our economy, saving $7.5 billion annually!

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D Gibson presentation to UNR Renewable Energy minor April 06, 2016

  1. 1. Certified Energy Manager LEED AP BD+C davidgibson1@gmail.com Powered by Sunshine: Net-Zero Energy Homes as a step toward 100% Renewable Energy David Gibson 1 UNR Renewable Energy Minor April 6, 2016
  2. 2. 2 UNR Renewable Energy Minor April 6, 2016
  3. 3. About David: • 2006 - BS in Civil and Environmental Engineering from Worcester Polytechnic Institute in Worcester, MA • Leadership in Energy and Environmental Design (LEED) Accredited Professional for Building Design and Construction through the US Green Building Council • Certified Energy Manager (CEM) through the Association of Energy Engineers • Led energy efficiency programs statewide from June 2014 through February 2016 for the Nevada Governor’s Office of Energy • Reno homeowner since August 2011 UNR Renewable Energy Minor April 6, 2016
  4. 4. What is an Energy Audit? UNR Renewable Energy Minor April 6, 2016
  5. 5. What is an Energy Audit? An energy audit is an analysis of energy usage, focusing on specific, practical and cost-effective ways that energy consumption can be reduced. UNR Renewable Energy Minor April 6, 2016
  6. 6. Purpose of Energy Audit: • Comfort • Health and safety • Durability • Indoor air quality • Energy and cost savings UNR Renewable Energy Minor April 6, 2016
  7. 7. Blower Door 10 • Used to measure air leakage before and after sealing • Precisely calibrated • For every cubic foot pulled out through the BD, one cubic foot is leaking in • Helps identify air leak locations and magnitude
  8. 8. Economic Analysis To determine which improvements should be made, we compare the upfront cost to the savings over time: • Simple Payback – How long does it take the measure to pay for itself? Calculation: upfront cost / annual savings • Return on Investment (ROI) – Can be compared to other investments (stocks, bonds, mutual funds, etc). Calculation: annual savings / upfront cost UNR Renewable Energy Minor April 6, 2016
  9. 9. Actual Energy and Cost Savings System Before Improvements Projected Costs Actual Costs Actual Savings Percent Savings Heating $4,022 $2,686 $850 $3,172 79% Cooling $0 $0 $0 $0 --- Water Heating $549 $549 $385 $164 30% Lights and Appliances $1,138 $968 $950 $188 17% Service Charges $115 $115 $115 $0 0% Total $5,824 $4,318 $2,300 $3,524 61%
  10. 10. Economic Analysis (LED Lights) Would you give me $100 today, if I offered to pay you $10/month for the next ten years? UNR Renewable Energy Minor April 6, 2016
  11. 11. Economic Analysis (LED Lights) Would you give me $100 today, if I offered to pay you $10/month for the next ten years? $120/year x 10 = $1,200 Payback: $100/$120 = 0.833 years (10 months) ROI: $120/$100 = 120% UNR Renewable Energy Minor April 6, 2016
  12. 12. Low-Flow Showerhead • Old (standard): 2.5 gallon per minute (GPM) • New: 1.5 GPM • Savings: 1.0 Gallon per Minute • 30 min showering = 30 gallons per day • 365 days = 10,950 gallons per year $100/year savings for electricity and water (~$60/year savings for natural gas) UNR Renewable Energy Minor April 6, 2016
  13. 13. Economic Analysis (showerhead) Would you give me $20 today, if I offered to pay you $5/month for the next five years? UNR Renewable Energy Minor April 6, 2016
  14. 14. Economic Analysis (showerhead) Would you give me $20 today, if I offered to pay you $5/month for the next five years? $60/year x 5 = $300 Payback: $20/$60 = 0.33 years (4 months) ROI: $60/$20 = 300% UNR Renewable Energy Minor April 6, 2016
  15. 15. EPA Recommended Thermostat Setpoints
  16. 16. What is the most cost-effective solar collector for a home? UNR Renewable Energy Minor April 6, 2016
  17. 17. UNR Renewable Energy Minor April 6, 2016
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  19. 19. Economic Analysis • Efficiency improvements: – $7,000 cost – $3,500 annual savings – 2 year payback / 50% Return on Investment • Solar hot water: – $6,700 cost - $2,500 rebate = $4,200 out of pocket – $420 annual savings – 10 year payback / 10% Return on Investment • Home value increased by $52,000 in 2 years! – At least half attributed to energy improvements 32 UNR Renewable Energy Minor April 6, 2016
  20. 20. Funding for Efficiency: • Energy Efficient Mortgage (EEM) • 203(k) Rehabilitation loan • NV Energy and Southwest Gas – Rebates vary • Umpqua Bank: GreenStreet Loan • Refinance home mortgage • Nevada Green Bank?? UNR Renewable Energy Minor April 6, 2016
  21. 21. A Great Investment • Investing in home efficiency is one of the best investments you can make • Significantly reduces long-term energy costs • Guaranteed return on investment, often exceeding 10% • Makes you more comfortable while saving you money UNR Renewable Energy Minor April 6, 2016
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  26. 26. Net-Zero Energy • The final step to making my house Net-Zero Energy is to replace the oil furnace. • Will have a ground-source heat pump installed. • Exchanges heat with the ground to provide heating and air conditioning. • Cost: $33,000 • Federal Tax Credit: 30% UNR Renewable Energy Minor April 6, 2016
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  30. 30. Economic Analysis UNR Renewable Energy Minor April 6, 2016
  31. 31. 44 • 2011 Toyota Prius • 50 MPG • 2013 Nissan Leaf • 120 MPGe • 100% Electric • Powered by Sunlight
  32. 32. 45 Nevada Energy Consumption & Costs
  33. 33. Economic Development Nevada spends $7.5 Billion each year on imported fossil fuels. (natural gas, coal, oil) • By 2030, we could have 100% renewable electricity, and 50% reduction in oil imports • By 2040, we could have 100% renewable energy across all sectors • Retaining $7 billion would create 100,000+ jobs UNR Renewable Energy Minor April 6, 2016
  34. 34. Residential • Nevada homes spend ~$1.5 Billion out-of- state each year on fossil fuels • 500,000+ homes in Nevada need efficiency upgrades x $7,500 = $3.75 billion impact • 500,000+ homes could install renewable energy upgrades x $20,000 = $10 billion impact • Auditors, HVAC, electrical, plumbing, insulation workers, solar installers needed UNR Renewable Energy Minor April 6, 2016
  35. 35. Commercial / Industrial • Nevada businesses spend $2.0 Billion out- of-state each year on fossil fuels • Deep efficiency improvements = 30%+ savings • Rooftop solar • GSHP under parking lots • Solar shade over parking lots UNR Renewable Energy Minor April 6, 2016
  36. 36. Transportation • Nevada spends over $5 billion annually on imported oil and transportation fuels. • How can we transform the Transportation sector? • Electric Vehicles? • Light Rail? • Magnetic Levitation (MagLev) Trains? • High-Speed Rail? UNR Renewable Energy Minor April 6, 2016
  37. 37. Energy/Water Nexus • Efficiency and renewables reduce water waste • Covering half of Lake Mead in solar would: • Reduce evaporation equal to Nevada’s water allocation from the Colorado River • Produce more electricity than all of NV Energy’s fleet of gas and coal plants • Indoor food production with aquaponics?? UNR Renewable Energy Minor April 6, 2016
  38. 38. Next Steps • NSHE Endowment: Divest from Fossil Fuels • New Energy Industry Task Force • Interim Legislative Committee on Energy • 2017 Legislature: o Set Statewide Goal (100% renewables by 2040) o Green Bank o PERS: Divest/reinvest ~$2-$3 Billion o Carbon Tax?? UNR Renewable Energy Minor April 6, 2016
  39. 39. Certified Energy Manager LEED AP BD+C davidgibson1@gmail.com Powered by Sunshine: Net-Zero Energy Homes as a step toward 100% Renewable Energy David Gibson 52 UNR Renewable Energy Minor April 6, 2016

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