San Diego, CA
Electrification ROI based on SDG&E rates and local rebates
Population: 1,386,000•Climate: hot•Electric: $0.312/kWh•Gas: $2.05/therm
Best Upgrade
Solar Panels
4.9 years • 257% ROI
Annual Savings
$3,146/year
Full electrification
Total Incentives
$23,600
Federal + utility rebates
Visual ROI Analysis
Payback Period Comparison
Lower is better • Shortest payback = fastest return on investment
Annual Savings Comparison
Higher is better • More annual savings = greater long-term benefit
Cumulative Net Savings Over Time
Point where line crosses $0 = payback achieved • Steeper line = faster savings growth
Detailed ROI by Upgrade
Heat Pump HVAC System
Replace gas furnace + AC with an all-electric heat pump
🌡️
Costs
Upfront cost:$12,000 - $18,000
Federal tax credit:-$2,000
SDG&E rebate:-$3,000
City/state incentives:-$6,000
Net cost:$1,000 - $7,000
Savings & ROI
Annual savings:$117/year
Simple payback:Not Recommended
15-year ROI:-88%
CO₂ reduction:0.1 tons/year
15-year net savings:$-13,252
Solar Panels (6kW System)
Generate your own electricity from the sun
☀️
Costs
Upfront cost:$15,000 - $21,000
Federal tax credit (30%):-$5,400
City/state incentives:-$1,000
Net cost:$8,600 - $14,600
Savings & ROI
Annual savings:$2,460/year
Simple payback:4.9 years
25-year ROI:257%
CO₂ reduction:3.6 tons/year
Full Electrification Package
Heat pump + Solar + Heat pump water heater + EV charger
⚡
Costs
Total upfront cost:$30,300 - $45,000
Total federal credits:-$10,400
Total utility rebates:-$3,900
City/state incentives:-$9,300
Net cost:$6,700 - $21,400
Savings & ROI
Annual savings:$3,146/year
Simple payback:4.7 years
15-year ROI:33%
Total CO₂ reduction:9.9 tons/year
15-year net savings:$9,547
San Diego Energy Context
Climate & Usage
Climate zone:hot
Heating degree days:1,050
Cooling degree days:950
Avg home size:1,750 sq ft
Energy Costs
Utility provider:SDG&E
Electricity rate:$0.312/kWh
Natural gas rate:$2.05/therm
Avg monthly bills:$172 elec + $48 gas
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