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| Cost: | Approximately $2.50 to $5 per bulb |
| Payback: | Around 3 to 7.5 months, depending on usage and your electric rate (cost per kWh) |
| Savings: | Provided ALL household light fixtures are energy-efficient: per year = $117; 10-year savings = $1861* |
| Resource: | • EnergyStar's CFL Calculator
• Reliant Energy's Lighting Calculator • National Resources Canada's Lighting Calculator |
| Cost: | Approximately: low flow faucet aerator = $1 to $3.50; low flow showerhead = $10 to $68 |
| Payback: | For aerators, immediate; for showerheads, 2+ months, depending on the gpm |
| Savings: | Niagara Conservation 1.5 gpm 2915CH low flow showerhead, for example: • Electric Water Heat = 949 kWh + 7,300 gal H2O = $143 (per year) • Gas Water Heat = 52 therms + 7,300 gal H2O = $91 (per year) |
| Resource: |
• Dept of Energy's Calculator for Faucet & Showerheads
• Dept of Energy's Calculator for Toilets • Dept of Interior's Home Water Use Questionnaire |
| Cost: | Approximately $20 to $100 |
| Payback: | For a smart power strip around $35, as little as 6 weeks |
| Savings: | According to treehugger.com, per year = $178; 10-year savings = $2834* |
| Resource: | My Green Electronics Calculator |
| Cost: | Approximately: door = $2.50 to $15; window = $2 to $23; electrical outlet = $0.10 to $5; air duct done yourself = $10 to $20; air duct done professionally = $300 to $1000; chimney = $45 |
| Payback: | About 2 to 3 years, depending on how well you weatherstrip all of your doors, windows, electrical outlets, air ducts, chimneys and any other sources for drafts or unwanted air seepage |
| Savings: | $300 to $500 per year, provided your entire home is properly caulked and sealed; cannot estimate savings from individual sealing fixes (epa.gov) |
| Resource: |
• Dept of Energy's Insulation Calculator
• Oak Ridge National Lab's Simple Whole Wall Calculator • Home Insulation $1,500 Tax Credit Requirements • Air Seal & Insulate with EnergyStar (Article) |
| Cost: | Approximately $50 to $100; most porch lights have built-in sensors |
| Payback: | 6 months to 1 year, depending on your electricity rate |
| Savings: |
• Residential: Up to 10% of your entire monthly energy bill (aceee.org)
• Commercial: 13% to 90% (mge.com) |
| Resource: | • University of Missouri's Occupancy Sensor Calculator
• Madison Gas & Electric's Occupancy Sensors • EnergyStar Labeled Building Project |
| Cost: | Approximately $40 to $125 |
| Payback: | About one year, assuming thermostat controls heat and air conditioning, and depending on where you live (climate and electricity rate) and personal preference (average set temperature during the hottest and coldest months) |
| Savings: | Depending on your electricity rate and climate (per year): • Low kWh but need lots of heat (e.g., Fargo, ND) = $115 • High kWh and need lots of cooling (e.g., Las Vegas, NV) = $75 |
| Resource: |
• Energy Experts' A/C Cost Calculator
• Energy Experts' Heating Cost Calculator • Reliant Energy Calculator |
| Cost: | Approximately $625 to $995, plus $100 for professional installation (optional) |
| Payback: | About 2 to 5 years at a rate of return of 15% to 50% per year -- more specifically, it's closer to 2 years, if you use electricity to heat water; and it's closer to 5 years, if you use natural gas to heat water |
| Savings: | • If your natural gas rate is fairly high like NYC (Energy Info Administration), then around $120 per year |
| Resource: |
• Minnesota Power DWHR Calculator
• Dept of Energy's Calculator for Electric & Gas Water Heaters • Reliant Energy Water Heating Calculator • Canada DWHR Calculator |