California Solar Incentives 2026: The Complete Guide to Every Program Available Right Now

California homeowners who install solar in 2026 have access to more layered incentives than at any prior point in the program's history, even though the federal purchase credit is gone: Section 25D expired December 31, 2025. California's property tax exclusion makes solar additions invisible to county assessors. The SGIP program pays cash rebates for battery storage. A partial sales tax exemption cuts the cost of equipment at purchase. And NEM 3.0, while less generous for exports than its predecessor, still provides meaningful credits for self-consumed solar power.

The problem is that most homeowners only hear about one or two of these incentives during a sales presentation. The installer's focus is the federal tax credit, because it is the largest and most universally applicable. The others get mentioned briefly or skipped entirely, which means homeowners make decisions without knowing the full picture of what they qualify for.

This guide covers every material incentive available to California residential solar customers in 2026, including programs that have expired or changed so you know what is no longer on the table. At the end, we walk through how to combine incentives for a Temecula installation and show the math on what stacking looks like in practice.

Federal Solar Tax Credit: What Changed for 2026

The Residential Clean Energy Credit under Internal Revenue Code Section 25D used to reduce a homeowner's federal income tax liability by 30% of the total installed cost of a purchased solar system. That included the panels, inverter, racking, wiring, labor, permitting fees, and any battery storage installed at the same time. The One Big Beautiful Bill Act, signed July 4, 2025, ended Section 25D for expenditures after December 31, 2025. A homeowner who buys a system in 2026, cash or loan, gets no federal tax credit.

Before that change, the 30% rate had been set to run through December 31, 2032 under the Inflation Reduction Act, stepping down to 26% in 2033 and 22% in 2034. That step-down schedule no longer applies to residential purchases - the OBBBA repealed the credit outright rather than letting it phase down. Commercial and utility-scale projects have a different credit pathway under Section 48E, which is unaffected and covered separately below.

The credit was non-refundable, meaning it could reduce a filer's tax liability to zero but would not produce a refund check. It carried forward to subsequent tax years until fully consumed. That still matters for anyone who purchased and placed a system in service on or before December 31, 2025 and has not used the full credit yet - the carryforward is unaffected by the repeal.

If you want the value that 30% used to represent, it is still available today, just not as a direct write-off for owning the system. A solar lease or PPA lets the solar company claim the commercial version of the credit, Section 48E, and pass the value through in a lower monthly rate, as long as the system is placed in service by December 31, 2027.

How the ITC Worked on IRS Form 5695 (For Systems Placed in Service by 12/31/2025)

This section applies only if your system was purchased and placed in service on or before December 31, 2025. If you are buying in 2026, there is no credit to claim - skip to the PPA alternative above. For those who did qualify, the credit flowed through Form 5695 (Residential Energy Credits) to Schedule 3, then to line 6b of Form 1040. Here is what each step looked like in practice.

If you installed solar through a lease or PPA, you cannot claim the ITC. The credit belongs to the system owner, which in a lease or PPA structure is the solar company. This is one of the core financial disadvantages of leasing rather than owning.

California Property Tax Exclusion: Solar Adds Value Without Raising Your Tax Bill

California Revenue and Taxation Code Section 73, often called the active solar energy system exclusion, prevents county assessors from raising your property's assessed value based on the installation of a solar energy system. This is significant because a Lawrence Berkeley National Laboratory study found that California buyers pay a premium of approximately $4,000 per kilowatt of installed solar capacity. A 10kW system adds roughly $40,000 in real market value - but that $40,000 is invisible to the county assessor under Section 73.

At Riverside County's base property tax rate of approximately 1.1%, a $40,000 increase in assessed value would otherwise generate an additional $440 per year in property taxes. Over a 25-year panel warranty period, that would total $11,000 in avoided property tax - a benefit that appears nowhere in most installer proposals.

The exclusion was made permanent by AB 1451 and applies statewide to all California counties. It covers solar panels, inverters, racking systems, and associated electrical equipment installed as part of an active solar energy system. It does not cover structural work done to support the installation, such as roof reinforcement or electrical panel upgrades performed independently of the solar equipment.

You do not need to apply for this exclusion. It is self-executing: the Riverside County Assessor is already aware of Section 73 and will not factor solar equipment into your reassessment. However, if you receive an erroneous assessment notice that appears to include solar improvements, you should file a formal exclusion claim with the assessor's office and reference Revenue and Taxation Code Section 73.

California Sales Tax Exemption on Solar Equipment

California offers a partial sales and use tax exemption for solar energy equipment sold to qualified solar energy system purchasers. The exemption removes 3.9375 percentage points from the applicable California state and local sales tax rate. California's base statewide sales tax rate is 7.25%, so the exemption effectively reduces the tax applied to eligible solar equipment to approximately 3.3125% on the state portion, though local district taxes may still apply.

In Temecula, where the combined sales tax rate is 8.75%, the partial exemption reduces the effective rate on qualifying solar equipment to approximately 4.8125%. On a $35,000 system where equipment (panels, inverters, racking) represents roughly 65% of the total cost, the equipment cost is approximately $22,750. The savings from the exemption on that equipment amount to roughly $900, which is real money that comes off the purchase price automatically when your installer handles the transaction correctly.

The exemption applies to the equipment itself, not to labor, permitting, or design services. It is claimed by the seller (your installer) on the sales tax return, not by you directly. A reputable installer will structure the invoice to separate equipment costs from labor costs and apply the exemption correctly. If you are reviewing a proposal, ask the installer whether the sales tax exemption is already factored into their quoted price or whether it will be applied at time of purchase.

The exemption is authorized under California Revenue and Taxation Code Section 6356.5 and applies to solar panels, inverters, and racking purchased by end-use residential customers for installation on their property.

SGIP Battery Storage Rebate: California's Cash Incentive for Energy Storage

The Self-Generation Incentive Program (SGIP) is a California Public Utilities Commission (CPUC) program that provides cash rebates for battery storage systems installed at homes and businesses. The program is administered by the state's four investor-owned utilities: Southern California Edison (SCE), San Diego Gas and Electric (SDG&E), Pacific Gas and Electric (PG&E), and Southern California Gas (SoCalGas). If you are in Temecula served by SCE, your SGIP application goes through SCE.

SGIP pays rebates per kilowatt-hour of battery capacity. The program is structured in "steps," with each step representing a funding tier at a specific rebate rate. As each step's funding is consumed, the program moves to the next step at a lower rate. In 2026, the standard residential rebate for SCE customers falls in the range of $150 to $200 per kWh of storage capacity, depending on which step is currently active and whether the step's allocation has been exhausted.

SGIP applications are submitted by your installer on your behalf after installation is complete. The rebate is paid directly to the customer, not the installer, typically within 60 to 90 days of application approval. The utility performs a technical review to confirm system specifications meet program requirements.

Waitlists exist when a step's funding is oversubscribed. SCE publishes current step status on its SGIP program page. If a step is closed, your application goes on a waitlist and your rebate is processed when new funding opens. Some installers will tell you to proceed with installation anyway and wait for the rebate; others will recommend waiting for a new step to open. The risk of proceeding is that a new step may open at a lower rebate rate than when you applied. Confirm the current step status before finalizing your installation timeline.

SGIP Equity Resilience: Higher Battery Rebates for Qualifying Customers

SGIP offers two enhanced tiers beyond the standard residential program: the Equity Budget and the Equity Resilience Budget. These programs provide substantially higher rebates for customers who face compounding energy burdens or elevated risk from grid outages.

The Equity Budget is available to customers whose household income is at or below 80% of the Area Median Income (AMI) for their county. In Riverside County, 80% AMI for a family of four is approximately $67,900 (verify the current threshold on California HCD's website, as it updates annually). The Equity Budget rebate is approximately four to six times the standard residential rate, which means a Tesla Powerwall that generates a $2,700 standard rebate could qualify for $10,800 or more under the Equity Budget.

The Equity Resilience Budget is available to customers who are on a medical baseline rate (meaning they have a qualifying medical condition that requires electric medical equipment), or who live in a Tier 2 or Tier 3 High Fire Threat District, or who have experienced two or more Public Safety Power Shutoff (PSPS) events. Parts of Riverside County's mountain communities qualify. The Equity Resilience tier pays up to $1,000 per kWh of storage capacity - the highest rebate rate in the entire SGIP program. For a 13.5 kWh Powerwall, that is up to $13,500 in SGIP rebates on its own, independent of whether you have any federal credit to claim.

Both equity tiers require documentation: income verification for the Equity Budget, and medical certification or PSPS history for the Equity Resilience Budget. Your installer can help gather the required documentation. If you are unsure whether you qualify, contact SCE's SGIP program team directly before committing to an installation date.

NEM 3.0: Not a Rebate, but a Key Part of Your Solar Financial Picture

Net Energy Metering 3.0 (NEM 3.0) is not a rebate or cash incentive - it is the billing structure that governs how you are credited for solar electricity you export to the grid. It took effect for new solar customers in California in April 2023. Homeowners who received interconnection approval before April 15, 2023 were grandfathered into NEM 2.0 for 20 years from their approval date.

Under NEM 2.0, exported solar electricity was credited at near-retail rates, often $0.28 to $0.45 per kilowatt-hour depending on time of use. Under NEM 3.0, export credits are based on the "avoided cost" to the utility, averaging roughly $0.03 to $0.08 per kWh during most daytime hours when solar production peaks. The reduction is approximately 75% compared to NEM 2.0 export rates.

The strategic response to NEM 3.0 is to maximize self-consumption: size your system to match your actual consumption rather than oversizing for export, and pair it with battery storage that captures daytime surplus for use during evening peak hours (4pm to 9pm). SCE's Time of Use rates during evening peak can exceed $0.45 per kWh, making battery-stored solar far more valuable than exported solar under NEM 3.0 export rates.

NEM 3.0 also introduces an NBT (Net Billing Tariff) structure that credits exports on a monthly, not annual, settlement cycle. Excess credits generated in one month no longer roll forward to offset bills in other months at full value. This further incentivizes battery storage and right-sized systems over the large, export-heavy systems that were financially optimal under NEM 2.0.

SCE and SDG&E Solar Programs: What Is Currently Available in 2026

Southern California Edison and San Diego Gas and Electric no longer operate large-scale upfront solar rebate programs. The California Solar Initiative (CSI) funded rebates that both utilities administered through 2016, but those programs closed when their funding was exhausted. In 2026, the meaningful utility-level solar programs are primarily billing and interconnection structures rather than cash rebates.

What SCE does offer that affects solar customers in Temecula includes favorable time-of-use rate plans designed to reward solar users who shift consumption to off-peak periods. SCE's TOU-D-PRIME rate plan, which is currently the default for new solar customers, offers lower rates for overnight and daytime consumption (outside peak hours) and higher rates during the 4pm to 9pm evening peak. A battery that charges from solar during the day and discharges during evening peak can generate $800 to $1,500 per year in rate arbitrage savings under this plan.

SCE also administers the SGIP battery rebate program for its territory, which covers Temecula and most of Riverside County. SDG&E administers SGIP for San Diego County customers. Both utilities have dedicated solar interconnection teams that handle NEM application processing, typically within 30 to 60 days of application submission for residential systems.

SDG&E operates its own local generation tariff structure under NEM 3.0 rules set by the CPUC, so the export credit rates differ slightly from SCE due to the respective utility's avoided cost calculations. If your property straddles a utility service territory boundary, confirm which utility serves your home before selecting a solar proposal.

Inflation Reduction Act Bonus Credits: Domestic Content and Energy Community Add-Ons

The Inflation Reduction Act introduced bonus credit adders on top of the base 30% ITC for commercial and utility-scale solar projects. For residential installations under Section 25D, these bonus adders generally do not apply directly in the same structure as they do for commercial projects under Section 48E. However, they are worth understanding because they affect the solar industry and supply chain pricing in ways that indirectly benefit residential customers.

The Domestic Content Bonus Credit adds 10 percentage points to the base ITC for projects that meet IRS domestic content requirements for steel, iron, and manufactured products. For commercial solar projects (businesses, schools, nonprofits), this brings the effective credit to 40% for qualifying systems using American-made equipment. While this does not directly apply to your residential Form 25D credit, installers who source domestic-content-qualifying equipment for commercial projects often maintain relationships with domestic manufacturers that benefit residential customers through supply chain availability.

The Energy Community Bonus Credit adds another 10 percentage points for commercial projects located in communities that have historically depended on fossil fuel industries and that are facing economic transition challenges. Certain parts of Riverside County that have had significant fossil fuel employment may qualify, but this applies to commercial, not residential, installations under current IRS guidance.

If you own a business property in an eligible energy community and are considering commercial solar, the combined ITC with domestic content and energy community bonuses can reach 50% of qualified project costs. A commercial solar specialist can assess whether your property qualifies and structure the project accordingly.

Section 48E Commercial Solar Credit: How It Differs from Residential 25D

If you own a business, rental property, or commercial building and are installing solar, the applicable credit is the Clean Electricity Investment Credit under Section 48E (formerly Section 48) rather than the residential Section 25D. The structural differences matter significantly for how you can monetize the credit.

Under Section 48E, the base ITC is also 30% for systems placed in service in 2026. For projects that begin construction after July 4, 2026, that 30% only applies if the system is placed in service by December 31, 2027. Unlike the (now-expired) residential 25D credit, Section 48E projects can qualify for the domestic content and energy community bonus adders described above, potentially reaching 50% or more. Section 48E credits are also transferable and direct-pay eligible under IRA provisions: businesses that cannot use the credit themselves can sell it to a tax equity investor at a discount, or certain tax-exempt entities can receive a direct cash payment equal to the credit amount.

If you operate a business out of your home in 2026, only the business-use percentage of the system can claim Section 48E - the residential portion gets nothing, since Section 25D expired December 31, 2025. A home office that represents 20% of total home square footage may support a proportional commercial credit claim on that share. A tax advisor familiar with energy credits should review the allocation before you file.

For small business owners in Temecula considering solar on a separate commercial property - a shop, office, warehouse, or restaurant - the Section 48E pathway with bonus adders can make the financial case substantially stronger than the residential program. Call us to discuss commercial solar options for your business.

Low-Income Solar Programs: SASH, MASH, and the DAC-SASH Program

California has two primary programs targeting solar access for low-income households: the Single-family Affordable Solar Homes (SASH) program and the Multi-family Affordable Solar Homes (MASH) program. Both are funded through the California Solar Initiative and are administered by GRID Alternatives, a nonprofit solar installer focused on serving income-qualified communities.

The SASH program provides free or heavily subsidized solar installations for income-qualified single-family homeowners. To qualify, you must own your home, your income must be at or below 80% of the Area Median Income for Riverside County, and you must be served by one of the state's investor-owned utilities (SCE qualifies). SASH also requires that the applicant be a utility customer in good standing and not already enrolled in another solar program. SASH installations are managed end-to-end by GRID Alternatives, including permitting, installation, and interconnection.

The DAC-SASH (Disadvantaged Communities - SASH) program specifically targets households in designated disadvantaged communities, which are identified using CalEnviroScreen scores. Many areas in Riverside County qualify as disadvantaged communities. DAC-SASH extends SASH benefits to a broader income range in qualifying geographic areas and may provide higher per-watt incentives to ensure the economic benefits of solar reach communities that historically lacked access.

MASH targets affordable multi-family housing developments, including apartment complexes and condominiums where income-qualified tenants reside. The rebate pays the building owner for installing solar, with the requirement that a portion of the energy savings benefit the low-income tenants rather than flowing entirely to the property owner. MASH is relevant for landlords of income-restricted housing and affordable housing developers in the Temecula and Inland Empire region.

Waitlists exist for both SASH and MASH in many utility territories. Contact GRID Alternatives' Inland Empire office to check current availability and apply. Even if you are on a waitlist, beginning the application process establishes your place in the queue.

PACE Financing: How CalPACE Works and What Risks to Understand

Property Assessed Clean Energy (PACE) financing is a mechanism that allows homeowners to borrow money for solar, battery storage, and other energy improvements and repay the loan through their property tax bill. The loan is secured by a lien on the property, not the homeowner's creditworthiness. The current California PACE program is CalPACE, which replaced the HERO Program after HERO's administrator, Renovate America, ceased operations in 2020.

PACE's main advantages are broad eligibility (approval is based primarily on home equity and property tax payment history, not credit score), no money down, and financing terms of 10 to 25 years. For homeowners who cannot qualify for a traditional solar loan, PACE can make installation financially accessible when it otherwise would not be.

PACE is best suited for homeowners who plan to stay in their home long-term, have significant equity, and cannot qualify for a traditional solar loan or home equity line. For most Temecula homeowners with reasonable credit and adequate equity, a traditional solar loan at 5% to 8% APR is a less risky and often less expensive path than PACE.

Rancho California Water District Turf Rebates and Solar-Compatible Landscaping

Rancho California Water District (RCWD) operates a turf removal rebate program for residential customers who replace water-intensive grass lawns with drought-tolerant landscaping. While not a solar program, it is often discussed alongside solar because the combination serves a similar goal: reducing operating costs through smarter resource use, and because many homeowners undertake both projects during the same home improvement cycle.

RCWD's turf removal rebate has historically paid $1 to $2 per square foot of removed turf, up to a program maximum, when replaced with approved drought-tolerant plants, mulch, or permeable hardscape. The current rebate amount and program status should be confirmed directly with RCWD, as water agency budgets and rebate levels change seasonally. Contact RCWD at (951) 296-6900 or visit their website for current availability.

The connection to solar is practical: removing high-water-use turf reduces your landscape irrigation demand, which in turn can reduce your total electricity bill (irrigation pump loads are significant consumers). A solar system sized for your current consumption load may become oversized if your overall consumption drops after turf removal, which is worth considering before finalizing your system size.

EV charger installation is also frequently bundled with solar projects. Southern California Edison's Charge Ready Home program has historically provided incentives for residential Level 2 EV charger installation. The federal Alternative Fuel Vehicle Refueling Property Credit (IRC Section 30C) provides a 30% tax credit on qualified EV charger installation costs, up to $1,000 for residential installations - a separate credit from the solar purchase credit, which is no longer available in 2026. Ask your tax professional whether Section 30C still applies to your installation timeline.

How to Stack Incentives: Combining ITC, SGIP, Property Tax Exemption, and More

The right stacking strategy depends on your income, tax situation, and system design. Here is how the incentives interact for a typical Temecula homeowner installing a 10kW solar system with a 13.5 kWh battery in 2026.

SGIP and the property tax exclusion are independent of each other and both still apply to a 2026 purchase in full. What is gone is the federal credit that used to apply on top of them: Section 25D expired December 31, 2025, so there is no 30% write-off to stack against the SGIP and property-tax numbers above. A homeowner who wants that value now typically compares this purchase math against a PPA quote, where the equivalent of the 30% credit is baked into the rate through Section 48E instead of claimed on a return.

For qualifying low-income households, the SGIP Equity Resilience rebate can replace the standard $2,363 SGIP figure with up to $13,500, which changes the math significantly. In that scenario, combined with the sales tax and property tax savings above, the effective net cost on a $48,000 installation comes down to roughly $22,240 ($48,000 - $13,500 - $1,260 - $11,000), even with no federal credit in the mix.

Incentives That Expired or Changed in 2024-2025: What Is No Longer Available

Understanding what is gone is as important as knowing what remains. Several programs that appeared in older solar guides are no longer available to new applicants, and some installers or online resources have not kept their materials current.

How to Get Every Incentive Applied to Your Temecula Installation

Most homeowners only capture one or two incentives because the installer is not incentivized to walk through all of them. The others require action on your part or specific documentation that many installers do not initiate unless you ask. Here is the step-by-step process to ensure you do not leave incentives on the table.

Our team works through this full incentive checklist with every Temecula homeowner before we quote a system size or price. Call (951) 290-3014 and we will walk through what you qualify for before any proposal conversation starts.

Frequently Asked Questions: California Solar Incentives 2026