NEM 3.0 Explained: California Solar Guide 2026

What Is NEM 3.0? California's New Solar Rules Explained

If you're considering solar installation in California in 2026, you need to understand NEM 3.0. The state's Net Energy Metering 3.0 program took effect in April 2023 and fundamentally changed how solar customers are compensated for the excess energy they send to the grid. Here's everything you need to know about California NEM 3.0 and why solar is still a smart investment.

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NEM 2.0 vs NEM 3.0: The Key Differences

California has had three generations of net metering. Understanding the transition helps you make informed decisions:

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How NEM 3.0 Export Rates Work

Under NEM 3.0, you're no longer credited at retail rates for excess solar. Instead, you receive "avoided cost" rates that reflect what the utility would pay for power at that moment. These rates vary by:

• Time of day: Peak hours (4-9 PM) have higher export values than midday
• Season: Summer rates differ from winter
• Weekday vs weekend: Different rate structures apply

For Southern California Edison (SCE) customers in Anaheim, Irvine, and Riverside, typical export rates under NEM 3.0 range from $0.02 to $0.15 per kWh—compared to $0.25-$0.50 under NEM 2.0. That's why self-consumption (using your solar power directly) matters more than ever.

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NEM 3.0 Strategies: Maximize Your Solar Savings

Solar still makes financial sense under NEM 3.0—you just need to optimize differently. Here are the proven strategies:

1. Shift Your Usage to Solar Hours

The single most impactful change: use electricity when your panels are producing. Run your pool pump, charge your EV, do laundry, and run the dishwasher during 10 AM–4 PM. Every kWh you use directly saves you the full retail rate ($0.25-$0.50) instead of exporting at $0.05-$0.10.

2. Right-Size Your System

Under NEM 2.0, oversizing was common. Under NEM 3.0, aim for 80-100% of annual usage. Excess production has diminishing returns. Use our solar calculator to estimate the right system size for your home.

3. Consider an EV (If You Don't Have One)

Electric vehicles are the perfect "battery" for solar—they consume large amounts of daytime electricity. Charging your Tesla or other EV during solar hours uses your production directly. Learn more in our EV vs gas cost comparison.

4. More Panels vs Batteries

For most homeowners, more panels beat batteries under NEM 3.0. Battery payback is typically 10+ years; additional panels pay back in 3-4 years. Shift your usage patterns first before considering storage.

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NEM 3.0 Payback: Is Solar Still Worth It?

Yes. Even with 75% lower export rates, solar pays back in 5-8 years for most California homeowners. Here's why:

Learn about the 30% federal tax credit and how it affects your solar investment.

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NEM 3.0 by Utility: SCE, PG&E, and SDG&E

All three major California utilities follow NEM 3.0, but the specifics vary:

Southern California Edison (SCE)

Serves Orange County, Riverside County, and much of Southern California. SCE's NEM 3.0 export rates peak in the late afternoon/evening (4-9 PM). See our SCE net metering guide for details. Solar Topper handles SCE interconnection for Anaheim, Irvine, Riverside, and all SCE territories.

Pacific Gas & Electric (PG&E)

Northern California's largest utility. Similar NEM 3.0 structure with time-of-use export rates.

San Diego Gas & Electric (SDG&E)

Serves San Diego County. Highest electricity rates in the nation make solar especially valuable.

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When to Go Solar Under NEM 3.0

The best time to go solar was yesterday. The second best time is now. Every month you wait:

• Electricity rates increase
• You pay more to the utility
• The 30% tax credit remains (through 2032) but incentives can change

Ready to see your numbers? Get a free solar quote from Solar Topper. We'll design a system optimized for NEM 3.0, show you exactly how to maximize self-consumption, and handle all permits and SCE interconnection. Serving Anaheim, Irvine, Riverside, and throughout Orange County.