Sky-high electricity rates from PG&E are a familiar problem for San Carlos homeowners. With some of the highest costs in the nation, finding energy independence is no longer a luxury—it's a financial necessity. But since PG&E implemented Net Billing (NEM 3.0), the old way of going solar doesn't work anymore. The key to real savings in 2026 isn't just generating power, it's storing it.
Benchmark Cost Analysis
What Do Solar Panels and a Battery Cost in San Carlos in 2026?
While a solar-only system might look tempting with a net cost around $8,050, the limited savings make it a poor investment under NEM 3.0. For real energy independence and maximum savings, San Carlos homeowners are opting for integrated solar and battery systems.
| System Type | Gross Cost (Pre-Incentive) | Net Cost (After 30% Tax Credit) | Est. Payback Period |
|---|---|---|---|
| Solar Only (Not Recommended) | $11,500 | $8,050 | ~7 years (with limited savings) |
| Solar + Battery (Recommended) | $23,500 | $16,450 | ~9-10 years |
The upfront investment for a battery system is higher, but it delivers far greater long-term value and protects you from future PG&E rate hikes.
Incentives & Tax Credits
Key Financial Incentives Available
- Federal Solar Tax Credit: The cornerstone of solar savings, this credit allows you to deduct 30% of your total system cost—including the battery—directly from your federal taxes. For a $23,500 system, that’s a $7,050 credit.
- Property Tax Exemption: In California, adding a solar panel system does not increase your property taxes, ensuring your investment doesn't come with an unexpected tax burden.
Net Metering: Pacific Gas & Electric (PG&E)
NEM 3.0 (2023)
Critical 🔋
Understanding PG&E's Net Billing (NEM 3.0)
Under the old rules, PG&E gave you nearly full credit for extra solar energy you sent to the grid. Under the current Net Billing tariff (NEM 3.0), that has changed drastically. Now, you might only get 5-8 cents per kWh for your excess solar power, while still paying over 30 cents per kWh to buy it back after the sun sets. A solar-only system leaves you exposed to these high evening rates, severely limiting your savings. This is why a home battery has become a standard and essential component for solar installations in the Bay Area.
Projected Savings
Maximizing Your Savings with a Battery
By pairing your solar panels with a battery, you store your own cheap, clean energy produced during the day. Instead of selling it to PG&E for pennies, you use that stored power to run your home during the expensive evening 'peak' hours. This strategy of 'self-consumption' is what unlocks significant savings. A typical solar and battery system in San Carlos can save you around $1,700 per year, a 41% increase in savings compared to a system without a battery. It also provides invaluable backup power during grid outages, which are becoming more common.