smud energy efficient remodel demonstration program...home/ affordable housing all electric del paso...
TRANSCRIPT
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SMUD ENERGY EFFICIENT REMODEL
DEMONSTRATION PROGRAM Presentation to Building America
Spring Stakeholder Meeting March 16, 2011
Mike Keesee Project Manager
Energy Research & DevelopmentSMUD
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SMUD Profile • Service territory area: 900
sq mi (2331 sq km) • Population: 1.4 million • 7 elected Board Members • Revenues: $1.4 Billion • 525,000 residential/
70,000 commercial • Employees: 2,200+ • Summer Peak: 3299 MW
in July 2006 • 10,917 GWh • 2nd largest muni in
California, 6th in nation
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Why Deep Energy Retrofits?
• State Strategic Energy Plan - 40% Energy Use Reduction in ALL Existing California Homes by 2020
• SMUD Efficiency Goals - 15% Reduction in Energy Use by 2015
• SMUD/SEP ARRA - 4,000 homes by 2012
• Home Owners – The “Magic #”
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What is it? Retrofit/Upgrade home to
reduce total household annual source
(electric/gas) energy use 50%
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Typical Residential Energy Efficiency Measures
• R-40 Attic Insulation with Radiant Barrier • R-19+ Walls • Air Sealing, Tight Envelope, 3ACH50 • SEER 16+ AC • AFUE 90% furnace w/ variable speed van
• Tight, tested R-6 ducts • Hi-Efficiency Water Heater • Energy Star CFL fixtures and Appliances
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R&D
• Systems Approach • New Wall Insulation Methods • Home Automation • Min-Split Heat Pumps • Heat Pump Water Heaters (all electric) • Air Sealing Techniques
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GreenBuilt Construction 8901 Quail Hill Way, Fair Oaks
Market Rate Flip • 47% Source Energy Savings • $42k (No Solar) • 182 to 78 HERS score • R-40 Attic Insulation with Radiant
Barrier • High Efficiency Windows • Air Sealing, 3.6 ACH50, 2.1 SLA • SEER 16/ HSPF 9.0 Heat Pump
w/ tight, tested R-6 ducts • Heat Pump Water Heater w/
Solar Pre-Heat • Energy Star CFL fixtures and
Appliances • Solar Electric PV
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GreenBuilt Energy Savings
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Greenbuilt Estimated Peak Demand and Annual Utility Bill Savings
63% - $180/mo ~59% Reduction $30k+ mortgage @ 5.25%
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Housing Group Fund 5832 Mascot Ave., Sacramento
Rehabbed Abandoned Home/ Affordable Housing
• 55% Source EnergySavings
• 241 to 86 HERS Score • R-40 Attic Insulation with
Radiant Barrier • High Efficiency Windows • Air Sealing, 2.8 ACH50,
1.4 SLA • SEER 16/ 80% AFUE • Tight, Tested R-6 ducts • Condensing Tankless • Energy Star CFL fixtures
and Appliances
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Mascot DER Estimated Annual kWh and Therm Savings
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Mascot Estimated Peak and Annual Utility Bill Savings
60% Less $117/mo~68% Reduction $20k + mortgage @ 5.25%
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Rehabbed Abandoned Home/ Affordable Housing All Electric
Del Paso Solutions 1110 Jean Ave., Sacramento
• 53% Source Energy Savings • R-40 Attic Insulation • High Efficiency Windows • Air Sealing, Tight Envelope,
2.9 ACH50,1.5 SLA • SEER 15/8.8 HSPF Mini-
Split Heat Pump • Heat Pump Water Heater • Energy Star CFL fixtures
and Appliances
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Jean DER Estimated Energy Savings
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Jean Estimated Peak Demand and Annual Utility Bill Savings
65% $140/month~67% Reduction $25k+ @ 5.25%
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32nd Avenue
Rehabbed Abandoned Home/ Affordable Housing$30k
66% Source Energy SavingsR-40 Attic Insulation R-19 Wall High Efficiency WindowsAir Sealing 2.9 ACH50, 1.5 SLA SEER 14/.95 AFUE Ducts in Conditioned Space.62 EF Water Heater Energy Star CFL fixtures and Appliances
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Estimated Electricity & Gas Savings
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32nd Estimated Peak Demand and Annual Bill Savings
71% $187/mo ~82% Reduction $30k+ mortgage
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Results to Date 9% less than existing 57% less than existing 1.5x
> 2x predicted electricity use predicted electricity use
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Results to Date 51% less than existing 74% less than existing
Same as predicted 40% less than predicted gas consumption
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Pre 80s - 60% Savings Package • HERS Testing/Inspections • Air Seal to 5 ACH50 • R-38 Attic Insulation (Radiant Barrier w/
Reroof) • SEER 14.5 AC/92 AFUE Furnace w/ Tight
Ducts (< 6% leakage) • Energy Star Windows • .62 EF+ Gas Water Heater or HPWH • Energy Star Hard Wired CFL Fixtures
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Markets
• All Electric Homes • Foreclosures • Re-Sale • Remodeling/Additions • Older Homes <1978
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R&D Issues and Big Winners
• Systems Approach • Air Sealing • HPWH • T-24/HERS • QuadLock Modeling • Hybrid Insulation
• Home Automation Systems• Air Sealing • Mini-Splits • Plug Loads
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Summary
• 50% + Energy (and big kW) Savings Possible but Costly
• DER Packages • Right Targets • Watch out for Plug Loads
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More Information
Mike Keesee
Project Manager (916) 732-5244
[email protected] Research is supported by the U.S. Department
of Energy Building America Program.