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Is Solar Worth It in Los Altos, 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 94022.

Market Snapshot

Elec. Rate
$0.27/kWh
Sun Hours
5.85
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 Los Altos is $148.5.

For homeowners in Los Altos, installing solar is a smart financial move that also provides critical backup during power outages. With PG&E's shift to the Net Billing tariff (NEM 3.0), the strategy for maximizing your return on investment now hinges on including a home battery. This combination allows you to control your energy, protect against rate hikes, and keep the lights on during Public Safety Power Shutoffs (PSPS).

Benchmark Cost Analysis

2026 Solar and Battery System Costs in Los Altos

A properly sized solar-plus-battery storage system for a typical home in Los Altos has a gross cost of approximately $23,500. However, the federal tax credit significantly reduces this investment. After applying the 30% credit, the final net cost comes down to about $16,450.

While you could install solar panels alone for just ~$8,050 net, this is no longer the recommended path. Without a battery, you are forced to sell excess daytime energy to PG&E for a pittance and buy it back at exorbitant peak rates in the evening. The battery investment is key to unlocking substantial savings.

Incentives & Tax Credits

Federal Tax Credits & Local Benefits

The most significant incentive is the 30% Residential Clean Energy Credit. For a $23,500 system, this provides a $7,050 credit on your federal income taxes. It applies to both the solar panels and the battery storage system. Furthermore, California's Property Tax Exclusion prevents your property taxes from increasing, a valuable benefit in a high-value market like Los Altos.

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)

PG&E's Net Billing policy fundamentally changed the economics of solar. Exported solar energy is now credited at the 'Avoided Cost Rate,' which is about 75% less than the retail electricity rate. This makes sending power back to the grid a poor financial strategy. A home battery solves this by keeping your solar energy for your own use. It also provides invaluable backup power during wildfires and PSPS events, a growing concern for residents near the Santa Cruz Mountains.

Projected Savings

Projected Energy Bill Savings

Pairing solar with a battery enables you to achieve near-total energy self-sufficiency. By storing your solar energy for use during PG&E's expensive 'Time-of-Use' peak hours (typically 4-9 PM), a typical system can save a Los Altos homeowner around $1,682 per year. This turns a variable, ever-increasing utility bill into a fixed, long-term asset that pays for itself in under 10 years and protects you from future rate increases.

Local Questions Answered

My electricity bill is fairly low. Is solar still a good investment?
Even with a lower monthly bill around $150, a solar and battery system provides predictable energy costs and crucial power backup. With PG&E rates constantly rising, locking in your energy production insulates you from future shocks. The resiliency during power shutoffs is often a primary motivator for Los Altos homeowners.
Will a battery power my whole house during an outage?
A standard battery can power your essential loads—like the refrigerator, lights, internet, and select outlets—for several hours. Larger battery systems can be configured to back up the entire home, including AC units. Your installer will help you size a system based on your specific backup power needs.
How can I find out the exact cost for my home?
The cost varies based on your roof space, shading, and annual energy consumption. Using the solar calculator below provides a personalized estimate based on your address and utility data without any sales calls.

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 Los Altos, 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.