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Is Solar Worth It in Monrovia, California?

We analyzed LADWP / Southern California Edison rate books, NREL irradiance data, and California tax codes to calculate the real ROI for homeowners in 91016.

Market Snapshot

Elec. Rate
$0.27/kWh
Sun Hours
5.0
Utility LADWP / Southern California Edison
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 Monrovia is $243.0.

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

With summer temperatures in the San Gabriel Valley regularly soaring, Southern California Edison (SCE) bills can be brutal. Homeowners in Monrovia are finding that pairing solar panels with a battery is the most effective way to fight back against rising electricity costs and SCE's Time-of-Use rates. The key in 2026 isn't just generating power, but storing it to use during expensive evening peaks.

Compare bill offset and incentives—open the calculator next.

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Benchmark Cost Analysis

2026 Solar & Battery Costs in Monrovia

Under California's NEM 3.0 rules, a solar-plus-battery system is the recommended path for meaningful savings. While a solar-only system seems cheaper upfront, its financial return is significantly lower due to poor export rates.

  • Solar + Battery System (Recommended): The gross cost for a typical system is around $23,500. After the 30% Federal Tax Credit, the net cost drops to approximately $16,450. This setup maximizes your energy independence and savings.
  • Solar-Only System (Not Recommended): A standalone solar system might cost only $11,500 upfront ($8,050 after tax credit), but without a battery, you'll be forced to sell your valuable midday solar energy to SCE for pennies and buy it back in the evening for dollars. This severely limits your return on investment.

Incentives & Tax Credits

Available Solar Incentives

Monrovia homeowners can leverage several key incentives to reduce the cost of going solar:

  • Federal Solar Tax Credit (ITC): This is the most significant incentive, offering a 30% credit on your total system cost, including batteries. For a $23,500 system, this translates to a $7,050 reduction on your federal taxes.
  • Property Tax Exemption: California ensures that adding a solar panel system will not increase your property taxes, preventing an unwanted tax hike on your home's increased value.
  • Self-Generation Incentive Program (SGIP): While funding varies, the SGIP often provides rebates specifically for installing home batteries. It's a critical incentive to check with your installer about for additional savings.

Net Metering: LADWP / Southern California Edison

Policy Status

NEM 3.0 (2023)

Battery Priority

Critical 🔋

Understanding SCE's NEM 3.0 Net Billing

California's shift to Net Billing (NEM 3.0) fundamentally changed solar economics. Instead of getting a one-to-one credit for excess energy, you now sell it back to SCE for a fraction of the retail price—often around 5-8 cents per kWh. This makes a battery essential. You can store your excess solar power produced during the day and use it yourself in the evening, avoiding the need to buy expensive electricity from SCE when the sun goes down.

Projected Savings

Projected Electricity Bill Savings

By installing a solar and battery system, the average Monrovia household with a $243 monthly SCE bill can expect to save around $1,531 annually. The system is designed to power your home during the day and use stored battery energy at night, drastically reducing what you pull from the grid during expensive peak hours (typically 4 PM to 9 PM). This leads to a typical payback period of about 10-11 years, after which the energy produced is nearly free.

Local Questions Answered

Is a battery really necessary for solar in Monrovia?
Yes, absolutely. Under SCE's NEM 3.0 plan, the value of exported solar power is extremely low. Without a battery, your savings are drastically reduced. A battery lets you store and use your own energy during peak evening hours, which is the key to significant savings.
How long will a solar and battery system last?
Modern solar panels are typically warrantied for 25 years and can last longer. Home batteries come with a 10 to 15-year warranty. The system is a long-term investment designed to provide power for decades.
What happens during a power outage with solar and battery?
If you have a battery paired with your solar system, you can have backup power during a grid outage. The battery can power essential appliances, giving you energy security that solar-only systems cannot provide.

Calculate Your Solar Savings

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* Calculations based on LADWP / Southern California Edison residential rates (0.27/kWh).

Data Transparency & Methodology

Estimates for Monrovia, 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.