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Is Solar Worth It in San Ramon, California?

We analyzed Pacific Gas & Electric (PG&E) rate books, NREL irradiance data, and California tax codes to calculate the real ROI for homeowners in 94583.

Market Snapshot

Elec. Rate
$0.27/kWh
Sun Hours
5.89
Utility Pacific Gas & Electric (PG&E)
Tax Exempt Yes
Battery Required

Analyst Note: The "4kW Benchmark"

The analysis below uses a standardized 4kW system to provide a fair baseline comparison across cities. However, the average electric bill in San Ramon is $216.0.

⚠️ Most homes here will need a larger system (8kW–12kW) to reach 100% offset. Use the calculator below for your exact numbers.

Paying Pacific Gas & Electric's high Time-of-Use rates is a major expense for San Ramon homeowners. With NEM 3.0 now the law of the land, simply sending excess solar power to the grid is no longer a path to savings. The export rates are drastically reduced, meaning a battery is essential to truly break free from PG&E's peak pricing and achieve significant financial returns.

Skip ahead to a personalized savings estimate for your home.

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Benchmark Cost Analysis

Solar + Battery System Costs in San Ramon (2026)

The realistic cost for a modern, effective solar installation is the combined system price. While a solar-only setup might look tempting at just $8,050 after credits, its limited savings under NEM 3.0 make it an unwise choice. The recommended solar and battery package has a gross cost of roughly $23,500.

  • Gross System Cost (Solar + Battery): $23,500
  • Federal ITC (30%): -$7,050
  • Final Net Cost: $16,450

This investment has a typical payback period of about 9-10 years, after which you enjoy decades of nearly free power.

Incentives & Tax Credits

Federal and State Solar Incentives

The primary financial incentive is the 30% Federal Residential Clean Energy Credit, which allows you to claim a dollar-for-dollar credit on your federal taxes for the full cost of your system, including the battery. California also offers a property tax exclusion, meaning your home's assessed value won't increase because of the added solar system—saving you hundreds each year.

Net Metering: Pacific Gas & Electric (PG&E)

Policy Status

NEM 3.0 (2023)

Battery Priority

Critical 🔋

Navigating PG&E's Net Billing Tariff (NEM 3.0)

Under California's NEM 3.0 policy, the strategy for solar has changed completely. PG&E might charge you over $0.35/kWh for electricity during peak evening hours, but they'll only pay you about $0.05 to $0.08/kWh for the excess solar power you export. This makes a 'solar-only' system a poor investment. By pairing your panels with a home battery, you can store your cheap solar energy produced during the day and use it yourself in the evening, bypassing PG&E's expensive rates entirely.

Projected Savings

Your Potential Monthly and Annual Savings

A solar-plus-battery system enables a San Ramon household to save approximately $1,694 per year. This is achieved by maximizing self-consumption—using your own stored solar power instead of buying from the grid. This strategy protects you from future rate hikes and provides backup power during Public Safety Power Shutoffs (PSPS), which are common in Contra Costa County. Without a battery, your annual savings would plummet to around $1,200, as most of your valuable solar energy would be sold to PG&E for pennies.

Local Questions Answered

Is solar still worth it in San Ramon with NEM 3.0?
Yes, but only with a battery. The key is to store your solar energy and use it yourself during PG&E's peak rate hours (4-9 PM). Without a battery, the financial returns are significantly reduced.
How long will a solar battery power my home?
A typical 10-13 kWh battery can power essential loads like your refrigerator, lights, and internet for 8-12 hours or more, depending on usage. This is critical during PG&E's PSPS events common in the area.
What's the real payback period for a solar + battery system?
For most San Ramon homes, the payback period is between 9 and 10 years. With electricity rates continuing to rise, that timeline is likely to shorten.

Calculate Your Solar Savings

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* Calculations based on Pacific Gas & Electric (PG&E) residential rates (0.27/kWh).

Data Transparency & Methodology

Estimates for San Ramon, California are produced by the SunCents Solar Engine (v1.2). We combine the following verified or standard industry sources:

Performance (PV production)

NREL PVWatts — modeled annual and hourly AC output (kWh), solar radiation, and system losses for a standardized array size so cities can be compared fairly.

nrel.gov

Electricity rates (tariffs)

U.S. Energy Information Administration (EIA) — state-level average retail electricity prices ($/kWh) and supporting series for economic context.

eia.gov

Incentives & programs

DSIRE — state and local rebates, net metering, and policy programs (summarized for readability; always confirm eligibility with a tax or solar professional).

dsireusa.org

Federal tax credit (ITC)

Investment Tax Credit — federal residential solar credit (e.g. 30% of qualified costs where applicable); rules change with statute—verify with a qualified advisor.

energy.gov

Utilities & interconnection

Where shown, local utilities (e.g. APS, PG&E, FPL, and other IOUs or munis) are mapped from public interconnection, tariff, or service-territory references so net metering and rider rules match your area—not generic national averages.