With electricity rates from San Diego Gas & Electric (SDG&E) among the highest in the nation, many Aliso Viejo homeowners are asking if solar is still a worthwhile investment in 2026, especially after the end of the major federal tax credit. The answer is a clear yes, but the strategy has evolved. The key to making solar work today is maximizing self-consumption—using the power you generate directly in your home—which is why pairing solar panels with a battery is often the smartest approach.
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Estimated 2026 Solar System Costs in Aliso Viejo
To achieve the savings outlined above, here is the estimated upfront investment for a 7.2 kW system, sized for a typical home in the area. These costs are for systems installed in 2026 and do not include federal tax incentives.
- Solar-Only System (7.2 kW): The estimated gross cost is $18,360.
- Solar + Battery System (7.2 kW with 10 kWh battery): The recommended configuration costs an estimated $33,360.
While the battery adds to the initial cost, its ability to unlock over a thousand dollars in extra annual savings makes it a compelling part of the overall financial picture.
Incentives & Tax Credits
Financial Benefits for Solar Owners in California
Even without a federal tax credit, California provides a supportive environment for homeowners investing in solar energy. The most significant financial perk is the state's property tax exclusion.
- No Property Tax Increase: An investment in a solar energy system will not increase your property taxes. California law excludes the added home value from a solar installation from your property's assessed value, a benefit available for systems installed through at least mid-2026.
- Enhanced Home Value: In a competitive real estate market like Orange County, an owned solar and battery system can be a major differentiator, enhancing resale appeal for buyers keen on energy independence and lower utility bills.
Net Metering: San Diego Gas & Electric Co
Net Billing (low export)
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Understanding SDG&E's Net Billing Rules
The reason a battery dramatically improves savings is due to SDG&E's net billing structure. When your solar panels produce more electricity than you can use, that excess power is sent to the grid. However, SDG&E compensates you at a low rate for that power—our model uses an estimate of around $0.11 per kWh. Just a few hours later, when the sun goes down, you have to buy electricity back from the grid at a much higher retail rate of about $0.32 per kWh.
A battery solves this problem. It stores your excess solar power so you can use it yourself during the evening, effectively letting you 'sell' that power to yourself at the full retail rate you would have otherwise paid SDG&E.
Projected Savings
How Much Can You Save with Solar in Aliso Viejo?
The primary benefit of going solar is the direct reduction in your monthly SDG&E bill. Given the high cost of electricity, generating your own power provides substantial value. Here’s how the numbers break down for a typical 7.2 kW system:
- A solar-only system is modeled to save an Aliso Viejo homeowner about $2,216 annually, with an estimated payback of 7.6 years.
- Adding a 10 kWh battery to the system boosts those annual savings significantly to $3,308. The payback period for this combined system is about 8.3 years, and it provides the added security of backup power during outages.
Solar is not only about today's bill. As utility rates continue to climb, the value of producing your own clean energy increases every year.