Peninsula Real Estate Guide
Solar Panels and Home Value on the Peninsula: NEM 3.0 Explained
Why the old “solar pays for itself in 6 years” math no longer applies, and what actually does
|
9 to 13 Yrs Payback, Solar-Only |
7 to 9 Yrs Payback, Solar Plus Battery |
~75% Cut to Export Credit Rate |
~$0.44/kWh PG&E Retail Rate, 2026 |
If you’re a PG&E customer on the Peninsula, and either considering solar or buying a home that already has it, the economics changed meaningfully in 2023 under a policy called NEM 3.0, and that shift still shapes what solar is actually worth to you in 2026.
What NEM 3.0 Actually Changed
Under the old NEM 2.0 rules, exporting excess solar power to the grid earned close to full retail credit, often 30 to 40 cents per kilowatt-hour. NEM 3.0 replaced that with an avoided-cost model, cutting export credit by roughly 75%, typically down to just 5 to 8 cents per kilowatt-hour. Meanwhile, PG&E’s retail rate remains high, around 44 cents per kilowatt-hour in 2026. The math flipped: selling power to the grid is no longer very profitable, but using your own solar power directly is more valuable than ever.
Why Battery Storage Became the Real Strategy
The Counterintuitive Result of NEM 3.0
Adding a home battery now often produces a faster payback than a solar-only system, the opposite of what was true under the old rules. A battery lets you store your cheap midday solar production and use it during expensive evening hours instead of selling it to the grid for pennies. Solar-only systems generally pay back in 9 to 13 years under current rules, while solar-plus-storage systems tend to pay back in roughly 7 to 9 years.
What This Means If You’re Buying a Home With Solar
If a Peninsula home you’re considering already has solar, ask when the system was installed. Systems installed before April 2023 are typically grandfathered onto the old, more generous NEM 2.0 rules, and that status generally transfers to you as the new owner as long as the system isn’t significantly modified. That grandfathered status can be a genuinely valuable, invisible asset that doesn’t show up anywhere on the listing sheet.
What This Means If You’re Installing New
| Design around self-consumption and storage, not exporting to the grid |
| Strongly consider pairing solar with a battery from day one rather than adding one later |
| If you’re planning an EV or heat pump, current rules allow sizing your system up to 150% of historical usage to account for it |
| Coordinate roof replacement timing with your solar installer if your roof is aging |
Key Takeaway
Solar remains genuinely worthwhile on the Peninsula given how high PG&E rates are, but the winning design in 2026 is solar-plus-battery built around using your own power, not selling it back cheaply to the grid.
Frequently Asked Questions
Is solar still worth it on the Peninsula under NEM 3.0?
Yes for most homeowners, especially paired with battery storage, given how high PG&E’s retail rates remain.
Does an older solar system keep its better NEM 2.0 rate when I buy a home?
Generally yes, as long as the system isn’t significantly modified, the grandfathered status typically transfers to the new owner.
Is the federal solar tax credit still available?
The federal residential credit expired for homeowners at the end of 2025, though prepaid lease structures can pass through equivalent savings via a different commercial credit.
Should I add a battery if I already have solar-only?
For most NEM 3.0 customers, yes, since it typically shortens payback significantly compared to exporting excess power at low rates.
| Related Reading | |
| What Upgrades Actually Increase Home Value in San Carlos, CA? | See how solar compares to other value-adding projects. |
| EV Charging as a Home Feature: What Peninsula Buyers Now Expect | A natural pairing with a solar-plus-battery system. |
| ADUs on the Peninsula: Real Costs, Rental Income, and 2026 Rules | Consider system sizing if you’re planning an ADU too. |
| New Construction vs. Resale on the Peninsula | New builds must meet Title 24, which already assumes solar-ready design. |
Buying or Selling a Home With Solar?
I can help you understand exactly what a system’s NEM status is actually worth in a transaction.
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Holly Noto | Coldwell Banker Realty | DRE#01244498, DRE#01908304
580 El Camino Real, San Carlos, CA 94070
650.544.6185 | [email protected]
Solar economics reflect general 2026 PG&E territory data and industry reporting; actual savings vary by system, usage, and household. This content is not financial, tax, or engineering advice.
