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Is Solar Worth It in Brentwood, 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 94513.

Market Snapshot

Elec. Rate
$0.27/kWh
Sun Hours
6.01
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 Brentwood 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.

Brentwood's hot summers and abundant sunshine make it a prime location for solar energy. But with PG&E's ever-increasing rates and the reality of NEM 3.0, the question isn't just *if* solar makes sense, but what *kind* of solar system makes sense. For homeowners looking to significantly cut their bills and gain energy independence, the answer in 2026 is a combined solar and battery storage system.

Benchmark Cost Analysis

2026 Solar + Battery Costs in Brentwood

Getting straight to the point: the key to solar savings in PG&E territory is pairing panels with a battery. This allows you to store your own solar energy to use during expensive evening hours, a strategy that is essential under California's Net Billing tariff.

  • Typical Gross Cost (Solar + Battery): Averages around $23,500.
  • Cost After Federal Tax Credit: The 30% federal credit drops your final cost to approximately $16,450.
  • 'Solar Only' Trap: While a solar-only system costs less upfront (around $8,050 net), it offers poor returns under NEM 3.0 because you sell your daytime power for pennies and still have to buy expensive grid power at night.

Incentives & Tax Credits

Key Financial Incentives for Brentwood Homeowners

The upfront cost of a solar and battery system is made much more affordable by a few key incentives. Every Brentwood resident can take advantage of:

  • The 30% Federal ITC: This tax credit reduces your federal tax liability by 30% of the total system cost. For a $23,500 system, this is a direct $7,050 savings. This incentive is locked in at 30% through 2032.
  • Property Tax Exemption: Your solar installation will increase your home's value, but it will not increase your Contra Costa County property taxes.

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

Policy Status

NEM 3.0 (2023)

Battery Priority

Critical 🔋

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

California's NEM 3.0 policy, which applies to all new solar customers, drastically changed the economics of solar. Instead of getting a near one-to-one credit for excess power sent to the grid, PG&E now pays you a much lower 'avoided cost' rate. This export rate is often 75-80% lower than the retail rate you pay. A battery solves this problem by ensuring you use your own power first, minimizing what you have to export for low credit or import at a high cost.

Projected Savings

Cutting Your PG&E Bill by $1,700+ Annually

With a solar and battery system, you generate and store your own electricity. This allows you to power your home through the 4-9 PM 'peak' billing period when PG&E's rates are highest. For a typical Brentwood home using 800 kWh/month, this self-consumption strategy translates to an estimated $1,712 in annual savings. It also provides a buffer against PG&E's future rate hikes and grid instability, a growing concern in the East Bay.

Local Questions Answered

Will my solar panels work during a PG&E Public Safety Power Shutoff (PSPS)?
Only if you have a battery. Standard grid-tied solar systems must shut down during a grid outage to protect utility workers. A solar system paired with a battery, however, can isolate from the grid and continue to power your home using stored energy and daytime production, making PSPS events much more manageable.
How many solar panels do I need for my Brentwood home?
System size depends on your annual electricity consumption, not just your home's square footage. The typical system in the area is between 4 kW and 8 kW to offset most of the household's usage. Our calculator below can give you a more precise recommendation based on your actual PG&E bill.
Is the 9-10 year payback period worth it?
Absolutely. After the system pays for itself in under a decade, you get another 15-20 years of electricity at a fraction of the cost you would have paid PG&E. It's a long-term investment that locks in your energy costs and protects you from volatile utility price hikes.

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 Brentwood, 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.