San Diego Solar ROI
Beat SDGE high rates. Updated 2026 financial modeling.
SDGE Rates are Rising.
Model your 25-year performance
San Diego Net Profit
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System Size
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Payback
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The Solar Hedge
Financial Logic
Model your savings based on localized irradiance data and utility rate forecasts.
30% Credit
The Federal Residential Energy Credit provides a direct dollar-for-dollar reduction of tax liability.
Home Value
Solar homes sell for an average of 4.1% more, turning energy bills into property equity.
Essential Solar Knowledge
1. How does the 30% Federal Tax Credit (ITC) work?
The ITC is a dollar-for-dollar reduction in your federal tax liability. Most homeowners claim a 30% credit against the total cost. Balance can roll over for 5 years.
2. Impact of NEM 3.0?
Under Net Billing, export rates are lower. Pairing solar with battery storage allows you to store power for peak evening hours, maintaining a high ROI.
3. Does it increase home value?
Yes. National studies show solar homes sell for 4.1% more. Most states also provide property tax exemptions on this added value.
4. Panel Degradation?
Tier-1 panels degrade at ~0.5% per year. After 25 years, systems are guaranteed to produce roughly 88% of original capacity.
5. Property Tax Exemptions?
Most solar-friendly states ensure that the added equity of a solar system does not increase your annual property tax bill.
6. Performance in clouds?
Solar uses light photons, not heat. While efficiency drops by 10-25% on overcast days, systems still produce meaningful power.
7. Cash vs. Loan?
Cash buyers see the fastest payback (5-8 yrs). Loans often provide "Day One" positive cash flow by replacing a bill with a lower monthly payment.
8. Inverter Warranty?
The inverter is the "brain". While panels last 25+ yrs, standard inverters need replacement at year 12. Microinverters offer a 25-yr match.