California Solar Incentives 2026: NEM 3.0, SGIP & Every Credit Explained

California is the undisputed leader in U.S. solar — accounting for over 40% of all residential solar installations nationwide. But the incentive landscape shifted dramatically in 2023 when the California Public Utilities Commission replaced NEM 2.0 with NEM 3.0, cutting export rates by up to 75%. If you're considering going solar in California in 2026, understanding exactly which incentives still stack in your favor — and how to size your system under the new rules — determines whether your project pays off in 8 years or 14.

This guide covers every available California solar incentive in 2026: federal, state, and utility-level programs, with real dollar estimates and eligibility requirements.

The Federal Investment Tax Credit: Still 30% Through 2032

Before diving into California-specific programs, the federal 30% Investment Tax Credit (ITC) remains the single most valuable solar incentive available to California homeowners.

For a typical California solar installation:

System Size	Gross Cost	30% ITC	Net Cost After ITC
5 kW	$17,500	$5,250	$12,250
8 kW	$26,000	$7,800	$18,200
10 kW	$31,500	$9,450	$22,050
13 kW	$40,000	$12,000	$28,000

Key ITC rules for 2026:

• Available for homeowners who own their system (not lease or PPA)
• Applies to panels, inverters, batteries, wiring, and installation labor
• Standalone battery storage added to existing solar systems also qualifies
• Credit reduces your federal income tax dollar-for-dollar
• Unused credit rolls forward to future tax years
• Rate remains at 30% through December 31, 2032, then steps down

Under NEM 3.0, pairing your solar system with a battery maximizes your financial return — and the ITC now covers battery costs, making storage far more economical.

NEM 3.0: What Changed and How It Affects Your System

The most consequential change to California solar economics in recent years was NEM 3.0, which took effect April 15, 2023. Any new solar application filed after that date falls under NEM 3.0 rules.

NEM 2.0 vs NEM 3.0: The Key Difference

Under NEM 2.0, surplus solar energy exported to the grid was credited at close to full retail rate — roughly $0.30–$0.35/kWh in most California utility territories. This meant oversizing your system was financially sensible.

Under NEM 3.0, export rates ("Avoided Cost Calculator" rates) average $0.03–$0.08/kWh — a 75–90% reduction from NEM 2.0 rates. You are still credited for exports, but at a far lower value.

What This Means in Practice

A 10 kW system that previously exported 30% of its production (3,000 kWh/year) would have earned roughly $900–$1,050/year in NEM 2.0 export credits. Under NEM 3.0, those same exports earn $90–$240/year.

The NEM 3.0 strategy is fundamentally different:

1. Size your system to your consumption, not production — don't overbuild expecting export revenue
2. Add battery storage — store excess daytime solar to use during expensive evening peak hours (TOU rates)
3. Shift high-load appliances to solar production hours (typically 9 AM–4 PM)
4. Enroll in TOU rates — California utilities offer time-of-use rate plans where overnight use is cheaper, making battery arbitrage profitable

Payback period impact: Under NEM 2.0, typical California payback was 6–8 years. Under NEM 3.0, a solar-only system runs 9–12 years. Adding a battery under NEM 3.0 with TOU optimization brings that back to 8–11 years. See our solar payback period calculator for personalized estimates.

NEM 3.0 Grandfathering

Customers who applied for interconnection under NEM 2.0 before April 14, 2023 are grandfathered on NEM 2.0 terms for 20 years from their permission-to-operate date. If you're in this group, your existing economics are protected.

California Property Tax Exclusion

California's Active Solar Energy System Exclusion (Revenue and Taxation Code Section 73) excludes the added property value from a solar installation from property tax assessment. This is a permanent state law, not a time-limited program.

What this means: A solar installation that adds $15,000–$25,000 to your home's assessed value generates zero additional property tax. At California's average effective property tax rate of 0.71%, this saves $107–$178/year indefinitely — or $2,140–$3,560 over 20 years.

Eligibility:

• Primary residence or second home in California
• Solar panels, inverters, batteries (when installed with solar)
• Applies when home is reassessed for any reason
• No application required — the exclusion is automatic when the county assessor is notified of the solar installation (most installers handle this)

California Sales Tax Exemption

California does not offer a blanket sales tax exemption on solar equipment. Unlike states such as Arizona or New York, California charges sales tax on solar panels and equipment purchased in the state.

However, many California solar installers structure contracts to minimize sales tax exposure, and some commercial solar projects may qualify for exemptions under specific programs. Residential buyers should assume standard California sales tax applies.

Self-Generation Incentive Program (SGIP): Battery Storage Rebates

The Self-Generation Incentive Program (SGIP) is California's battery storage rebate program, administered by PG&E, SCE, SDG&E, and SoCalGas. It provides upfront rebates for installing battery storage systems.

SGIP Rebate Structure

SGIP offers tiered incentives based on storage capacity ($/Wh):

Equity Budget (low-income/disadvantaged communities — highest rebates):

• Residential: $0.85–$1.00/Wh for first 10 kWh; $0.20/Wh thereafter
• For a 13.5 kWh Tesla Powerwall 3: roughly $9,000–$10,000 rebate

Equity Resiliency Budget (high medical/fire risk):

• $1.00/Wh, up to $1,000 per kWh of storage
• For a 13.5 kWh system: up to $13,500 in rebates

General Market Budget:

• Lower incentives, and this budget has frequently been exhausted
• Current rebate rates vary by utility territory; check SGIP program administrators for current availability

SGIP + ITC stacking: You must subtract the SGIP rebate from your system cost before calculating the ITC. If your 13.5 kWh battery costs $14,000 and you receive a $5,000 SGIP rebate, the ITC applies to $9,000 (the net cost after rebate).

Who Qualifies for Equity SGIP?

The equity and equity resiliency budgets — which offer the highest rebates — require:

• Equity Budget: Income at or below 80% of Area Median Income (AMI), or location in a CalEnviroScreen 3.0 disadvantaged community
• Equity Resiliency Budget: Additionally requires either (a) a life-threatening medical condition, (b) location in a Tier 3 or Tier 4 High Fire Threat District (HFTD), or (c) having experienced two or more Public Safety Power Shutoff (PSPS) events

Given the high fire risk across large parts of California, many homeowners in HFTD areas qualify for the Equity Resiliency budget — check your utility's HFTD map.

DAC-SASH: Solar for Low-Income Households

The Disadvantaged Communities — Single-family Affordable Solar Homes (DAC-SASH) program provides solar at no upfront cost for income-qualified single-family homeowners in disadvantaged communities.

Administered by GRID Alternatives in partnership with California's investor-owned utilities, DAC-SASH targets homeowners who:

• Own and occupy their home as a primary residence
• Are enrolled in the California Alternate Rates for Energy (CARE) or Family Electric Rate Assistance (FERA) program
• Live in a CalEnviroScreen 3.0 top 25% disadvantaged community

DAC-SASH covers hardware, installation, and interconnection costs, resulting in a free solar system for eligible households. Solar bill savings go immediately to the homeowner. The program has a limited budget and waitlists are common — apply through GRID Alternatives if you may qualify.

SOMAH: Solar for Affordable Multifamily Housing

The Solar on Multifamily Affordable Housing (SOMAH) program provides solar incentives for eligible affordable multifamily buildings in California. It targets low-income tenant households, with 51% of system benefits required to go to tenant units rather than common areas.

If you own or manage an affordable apartment building, SOMAH can finance 100% of the solar installation cost for qualifying properties.

Utility-Specific Programs

Pacific Gas & Electric (PG&E)

PG&E customers face some of California's highest electricity rates — averaging $0.35–$0.45/kWh in 2026 — which makes solar ROI compelling despite NEM 3.0.

PG&E programs for solar customers:

• Electric Home Rate Plan (EV2-A): Designed for EV + solar customers; very low overnight rates for EV charging balanced by higher peak rates — works well with battery storage
• SmartRate: Summer demand-response program; credits for reducing use during grid emergencies
• NEM 3.0 enrollment: All new interconnections after April 2023 on Avoided Cost Calculator rates

Southern California Edison (SCE)

SCE territory covers Los Angeles, Orange County, and much of the Inland Empire.

SCE programs:

• TOU-D-PRIME: Preferred TOU rate for solar + battery customers; super-off-peak rates allow low-cost battery charging from grid when solar isn't sufficient
• Summer Discount Plan: Grid flexibility payment (demand response)
• Critical Peak Pricing option: Avoidable peak surcharges create strong incentive to dispatch battery during peak events

San Diego Gas & Electric (SDG&E)

SDG&E has California's highest residential electricity rates — often exceeding $0.50/kWh at peak periods. This makes solar + storage economics among the strongest in the state.

SDG&E programs:

• NEM 3.0 export rates: SDG&E's avoided cost rates are slightly higher than PG&E/SCE due to local grid conditions
• Emergency Load Reduction Program (ELRP): Demand-response credits for battery owners who discharge during grid emergencies (up to $2/kWh during events)

California Solar Mandate for New Homes

Since January 1, 2020, California's Title 24 building code requires all new single-family homes and low-rise multifamily buildings (3 stories or fewer) to include solar panels. The mandate was expanded in 2023 to include most new commercial buildings.

If you're buying a new construction home in California, solar is already included — but verify the system is correctly sized for your expected consumption, and whether battery storage is included or should be added.

How Much Can California Homeowners Save?

Here's a realistic summary of incentives for a typical California solar installation in 2026:

Scenario: 8 kW solar + 13.5 kWh battery in PG&E territory, moderate-income homeowner

Incentive	Value
Federal ITC (30% of $38,000 system)	$11,400
Property tax exclusion (20-year NPV)	$2,500
SGIP (general market, if available)	$2,000–$5,000
Net cost to homeowner	~$19,000–$22,000
Annual bill savings (NEM 3.0 + TOU)	$2,400–$3,200
Payback period	7–9 years

For Equity SGIP-eligible homeowners in fire-risk areas:

Incentive	Value
Federal ITC (30%)	$11,400
SGIP Equity Resiliency rebate	$10,000–$13,500
Net cost to homeowner	~$11,000–$15,000
Payback period	4–6 years

Applying for California Solar Incentives: Step-by-Step

1. Get 3+ installer quotes — use platforms like EnergySage, Sunrun, or local certified installers. California has hundreds of CSLB-licensed solar contractors.
2. Verify SGIP eligibility — check income requirements and HFTD fire-risk maps via your utility's SGIP administrator portal.
3. File for SGIP reservation — your installer typically handles this before installation begins; SGIP funds are reserved when the application is submitted.
4. Installer handles permits and interconnection — California interconnection typically takes 4–8 weeks for PG&E/SCE; SDG&E varies.
5. Claim the ITC on your federal tax return — use IRS Form 5695 in the tax year your system receives permission to operate.
6. Property tax exclusion — automatic in most counties; your installer should notify the assessor.

What to Know Before Going Solar in California in 2026

NEM 3.0 changes your calculus significantly. Under the old rules, maximizing system size made sense. Now, right-sizing to your consumption and adding battery storage is the winning strategy. Systems without storage recover value more slowly under NEM 3.0.

Electricity rates are rising. PG&E, SCE, and SDG&E have all filed for continued rate increases through 2027–2028. Higher utility rates mean every kWh your solar system displaces is worth more — improving payback period projections.

SGIP funds are limited. Equity budget funds exhaust quickly when replenished. If you qualify for Equity or Equity Resiliency SGIP, apply as soon as possible through your utility.

Consider time-of-use rates. Enrolling in TOU rates aligned with solar production hours and dispatching battery storage during evening peaks is now essential to California solar economics. Work with your installer to model TOU savings before finalizing your system design.

For a full cost breakdown including installation and financing options that work well in California, those guides have detailed California-specific data.

Bottom Line

California's solar incentives in 2026 still stack to significant value — the 30% federal ITC, property tax exclusion, and SGIP battery rebates together can offset 40–60% of system cost for eligible homeowners. NEM 3.0 changed the export economics but didn't eliminate solar's financial case; it shifted the optimal design toward consumption-first sizing and battery storage.

For low-income and disadvantaged-community residents, DAC-SASH and Equity SGIP make solar essentially free or deeply subsidized — these programs are underutilized and worth pursuing immediately if you qualify.

The best move in California today: get multiple quotes, size for your consumption, add a battery if your budget allows (especially in fire-risk areas), and claim every available incentive at filing time.