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Pre $754 Post $557 $377 v $278$377 v $278$377 v $278
Florida Solar Energy Center
Typical Projected Annual Energy Use for 70 Florida Homes
Retrofit Status
CondArea Ft2
Average
Day kWh
Average Day $
Average
Month $
Average
Year $
Average
Year $/Ft2
Before 1,365 ft2
40 kWh $ 5.16 $ 157 $ 1,885 $1.42
After 1,365 ft2
29 kWh $ 3.82 $ 116 $ 1,394 $1.05
Typical Cooling Load
Energy Use in Florida
Building America Partnership for Improved Residential Construction
Decade Average Pre-retrofit HERS Index Scores
1970’s 132
1990’s 112
2000’s 107
1960’s 150 1980’s 125
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ZeroEnergy
New HomeBefore Solar
Building America Partnership for Improved Residential Construction
HERS Index Examples
2000’s = 107
4
1960’s = 150
Solar Ready = 55Zero Energy = -6
How Low Can Existing Homes Go? Cost Effectively!
Building America Partnership for Improved Residential Construction
Cost Effective Efficiency Enhancements and Replacements
• Anytime, low-cost measures: • Behavior Modification• House sealing* (92% of the deep retrofits) • Duct sealing* (86%)• CFLs (52% increased CFL count by 30%+)• Programmable thermostat (48%)• New: Insulate hot water heater* & accessible hot water pipes
• Anytime, moderate-cost measures• Insulate ceiling to R-38 (93% insulated to R-30+)
*Heed combustion safety cautions. Contact Janet McIlvaine, 321-638-1434
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Building America Partnership for Improved Residential Construction
• At replacement, no/low cost measures: (Higher efficiency choices at change-out)
• ENERGY STAR® appliances (76% of the deep retrofits)• Higher efficiency water heater (EF ≥ 0.92) (70%)
– Consider much bigger savings with heat pump water heater or solar or instantaneous gas
• Choose higher insulated (R-6) duct work (39%)• Choose lighter exterior colors when time to reroof (30%)• ...or paint exterior (30%)• ENERGY STAR® fans (15%)
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Cost Effective Efficiency Enhancements and Replacements
Building America Partnership for Improved Residential Construction
• At replacement, moderate/high cost measures: (Higher efficiency choices at change-out)
• ≥15 SEER AC; Heat pump in Central FL (96% of the deep retrofits replaced ACs, 95% of those SEER ≥ 15)
• ENERGY STAR® windows or apply low SHGC film (80%)(SHGC ≤ 0.27; U-value ≤ 0.60)
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Cost Effective Efficiency Enhancements and Replacements
Building America Partnership for Improved Residential Construction
Good Habits…• Behavior Modification
– Maintain your central air conditioner• Keep filter clean• Set fan to “auto” instead of “on”• Set thermostat as high as you are comfortable and maintain ~5°
higher when not at home– Every 1° cooler = Approx 6% cooling energy
– Turn off ceiling fans when occupants are not present (1 fan continuous oper. = approx $7/month)
– When washing in hot water, adjust the load selector to match the actual size of the load.
– Keep the lint filter in your dryer clean
Building America Partnership for Improved Residential Construction
Set up your online account access www.FPL.com
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Building America Partnership for Improved Residential Construction
Online Home Energy Survey
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Building America Partnership for Improved Residential Construction
Energy Use Dashboard
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Your Name & Acct #
Building America Partnership for Improved Residential Construction
Estimate Your Heating and Cooling $$
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Estimated Base Energy Use
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Estimated Cooling Energy Use
Estimated Heating Energy Use