California Battery Storage Rebates & Incentives (2026 Guide)

The federal 30% residential solar and battery tax credit expired on December 31, 2025. But California homeowners still have access to significant state-level rebates and utility incentives in 2026. The SGIP RSSE program offers up to $1,100/kWh — potentially covering 100% of battery costs for qualifying households. SMUD customers can receive up to $10,000 through the My Energy Optimizer Partner+ program.

What Happened to the Federal Tax Credit?

The federal 30% Residential Clean Energy Credit (Section 25D) was repealed in mid-2025 and expired December 31, 2025. No federal residential tax credit is available for battery or solar systems installed in 2026. California state programs like SGIP and SMUD incentives are now the primary cost-reduction programs for Sacramento County and San Joaquin County homeowners.

The federal Residential Clean Energy Credit (Section 25D) provided a 30% tax credit for solar panels, battery storage, and other clean energy equipment installed on homes. It was one of the most valuable incentives available, reducing a $15,000 battery system to an effective cost of $10,500.

In mid-2025, the One Big Beautiful Bill Act repealed Section 25D. The credit expired for all systems placed in service after December 31, 2025. If you installed a system before this date, you can still claim the credit for the tax year your system was activated. But for any system installed in 2026 or later, the federal residential tax credit is no longer available.

Important note: The commercial Investment Tax Credit (Section 48E) still exists through 2032. This applies to battery systems installed through lease or PPA (Power Purchase Agreement) structures — but STORPWR does not currently offer lease/PPA programs. All our installations are direct purchase.

SGIP (Self-Generation Incentive Program)

SGIP is California's primary battery rebate, offering $200-$1,100/kWh depending on eligibility tier. The RSSE program (AB 209) provides up to $1,100/kWh for income-qualified households, potentially covering 100% of system costs. PG&E customers in Sacramento County and San Joaquin County are eligible. SMUD customers have a separate incentive program.

SGIP is California's primary battery storage rebate program, administered by the California Public Utilities Commission (CPUC). It provides per-kWh rebates for qualifying residential battery installations connected to PG&E, SCE, or SDG&E. SMUD customers have their own separate program (see below).

SGIP Budget Status (April 2026)

The RSSE (Residential Solar and Storage Equity) program, funded by $280 million in state money through AB 209, is the most generous program — potentially covering 100% of system costs for qualifying low-income households. As of April 2026, the RSSE budget is fully reserved, with new applications placed on a waitlist. We recommend applying now to secure your place.

The general market, equity, and equity resiliency ratepayer-funded budgets are currently closed to new applicants. These programs periodically reopen when funding becomes available. We monitor SGIP funding status and will notify you when budgets reopen.

SGIP Savings Example

For a 13.5 kWh Tesla Powerwall system:

• General Market (if reopened): 13.5 × $250 = $3,375 rebate
• Equity: 13.5 × $850 = $11,475 rebate
• RSSE: 13.5 × $1,100 = $14,850 rebate (may cover full cost)

SMUD Battery Rebate for Sacramento Homeowners

SMUD offers Sacramento County homeowners up to $10,000 through the My Energy Optimizer Partner+ program, plus ongoing quarterly incentives of $110-$330 per quarter for Tesla battery owners. Combined, SMUD customers can receive $5,400+ upfront and $440-$1,320 annually in ongoing payments for the life of the program.

Sacramento-area homeowners served by SMUD have access to one of the best utility battery incentive programs in California. SMUD's My Energy Optimizer Partner+ program provides:

• One-time enrollment incentive: Up to $10,000 per household ($500/kWh minus 20% holdback)
• Ongoing quarterly incentives (Tesla only): $110/quarter for 1 battery, $220 for 2, $330 for 3+
• Annual ongoing value: $440-$1,320/year in quarterly payments

To qualify, you must enroll within 90 days of receiving Permission to Operate (PTO) from SMUD and participate in SMUD's Solar and Storage Rate. Eligible battery brands include Tesla, Enphase, SolarEdge, Franklin, Sonnen, and Eguana.

For a Tesla Powerwall (13.5 kWh), the one-time SMUD incentive calculates to approximately $5,400 (13.5 × $500 × 0.8 holdback). Combined with the ongoing quarterly payments, SMUD customers receive strong financial support for battery storage.

Battery Rebates for Stockton & San Joaquin County

Stockton and San Joaquin County homeowners are PG&E customers eligible for SGIP rebates. The RSSE equity program is especially relevant for Central Valley households, with many Stockton-area homeowners qualifying for the enhanced $1,100/kWh tier. Homeowners in PG&E's PSPS-affected zones may also qualify for Equity Resiliency rebates.

Stockton and San Joaquin County homeowners are served primarily by PG&E, making them eligible for SGIP rebates. The RSSE equity program is particularly relevant for Central Valley households — many Stockton-area homeowners meet the income qualifications for the enhanced $1,100/kWh rebate tier. Households in PG&E's PSPS-affected zones may also qualify for the Equity Resiliency tier.

MID (Modesto Irrigation District) customers in nearby Modesto and Turlock should check with MID directly for any municipal utility battery incentives, as these are separate from SGIP.

Other Available Incentives

Beyond SGIP and SMUD programs, California homeowners benefit from a property tax exclusion for solar and battery systems, CARE/FERA rate discounts that enhance SGIP eligibility, medical baseline priority access, and municipal utility programs from Roseville Electric, MID, and TID. County-level eligibility varies across Sacramento County and San Joaquin County.

• Property tax exclusion: California's Active Solar Energy Systems property tax exclusion means your solar and battery installation does not increase your property tax assessment. Your home value goes up, but your property taxes don't.
• CARE/FERA rates: Low-income households on CARE or FERA utility rate discounts may qualify for enhanced SGIP tiers.
• Medical baseline: Households with medical baseline status due to qualifying medical equipment may receive priority for equity resiliency SGIP.
• Municipal utility programs: Roseville Electric, MID (Modesto Irrigation District), and TID (Turlock Irrigation District) may have their own incentive programs. Check with your utility or ask us during your assessment.

TOU Rate Savings — The Incentive That Never Expires

Time-of-Use rate arbitrage saves most California homeowners $30-$80 per month by charging during cheap off-peak hours and discharging during expensive peak hours. This $360-$960 annual savings requires no application, no qualification, and has no expiration date — it continues for the entire life of your battery system.

Regardless of which rebate programs are available, battery storage saves money every month through Time-of-Use rate arbitrage. By charging during off-peak hours (when electricity is cheapest) and discharging during peak hours (when it's most expensive), most California homeowners save $30-$80 per month. This $360-$960 annual savings continues for the life of the battery — no application, no qualification, no expiration.

For Sacramento homeowners, SMUD's peak rates during summer months create particularly strong arbitrage opportunities. For PG&E customers in Stockton and surrounding areas, the peak-to-off-peak rate spread is even wider.

How STORPWR Helps You Maximize Rebates

Stor Power handles the entire rebate and incentive process — from SGIP applications to SMUD enrollment to municipal program paperwork. We assess your eligibility for every available program during the free site assessment, submit applications on your behalf, and monitor closed programs so you know when funding reopens.

Navigating SGIP applications, utility interconnection requirements, and municipal programs is complex. Stor Power handles the entire rebate and incentive process for you:

• We assess your eligibility for every available program during the free site assessment
• We prepare and submit SGIP applications on your behalf
• We handle SMUD's My Energy Optimizer enrollment within the 90-day PTO window
• We monitor closed program budgets and notify you when they reopen
• We calculate your total cost-after-incentives so you know exactly what you'll pay

We've helped over 150 homeowners navigate SGIP and SMUD rebate applications.