Download - Presentation to UNR RE minor 10182016
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Certified Energy ManagerLEED AP BD+C
Powered by Sunshine:Net-Zero Energy Homes
as a step toward100% Renewable Energy
David Gibson
1UNR Renewable Energy Minor
October 18, 2016
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2UNR Renewable Energy Minor
April 6, 2016
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Blower Door
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• 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
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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 costUNR Renewable Energy Minor
October 18, 2016
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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%
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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 MinorOctober 18, 2016
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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 MinorOctober 18, 2016
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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 MinorOctober 18, 2016
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EPA Recommended Thermostat Setpoints
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UNR Renewable Energy MinorApril 6, 2016
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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 MinorOctober 18, 2016
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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
25UNR Renewable Energy Minor
October 18, 2016
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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 MinorOctober 18, 2016
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OLD105,000 BTU/Hour
NEW31,000 BTU/Hr
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Economic Analysis
UNR Renewable Energy MinorApril 6, 2016
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• 2011 Toyota Prius• 50 MPG
• 2013 Nissan Leaf• 120 MPGe• 100% Electric• Powered by Sunlight
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Nevada Energy Consumption & Costs
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Economic Development
Nevada spends $8 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 MinorOctober 18, 2016
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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 MinorOctober 18, 2016
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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 MinorOctober 18, 2016
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Transportation
• Nevada spends over $5 billion annually on imported oil and transportation fuels.
• How can we transform the Transportation sector?• Improve Bike-ability• Electric Vehicles• Light Rail• High-Speed Rail or MagLev Trains
UNR Renewable Energy MinorOctober 18, 2016
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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
UNR Renewable Energy MinorOctober 18, 2016
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Next Steps
• NSHE Endowment: Divest from Fossil Fuels• 2017 Legislature:
o Set Statewide Goal (100% renewables by 2040)
o Green Bank to finance projectso PERS: Divest/reinvest ~$2-$3 Billion
UNR Renewable Energy MinorOctober 18, 2016
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What can you do?
• Change your lightbulbs to LEDs and install a high efficiency (1.5 GPM) showerhead today!
• Hire a certified energy auditor to see what other improvements you can make
• Talk with UNR about how they can save energy• Contact your elected officials to let them know
that this is the future you want for Nevada!
UNR Renewable Energy MinorOctober 18, 2016
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Certified Energy ManagerLEED AP BD+C
Powered by Sunshine:Net-Zero Energy Homes
as a step toward100% Renewable Energy
David Gibson
41UNR Renewable Energy Minor
October 18, 2016