California's NEM 3.0 killed full retail net metering in April 2023, cutting solar payback rates by 75%. Now other states are following suit. Here's how net metering actually works, which states still pay fairly, and why the next 18 months will reshape solar economics nationwide.
Let me explain net metering in 30 seconds: Your solar panels produce power. When they make more than you use, the excess flows to the grid. Your utility credits you for that power. When you need electricity at night, you draw from the grid using those credits. Simple, right?
Not anymore. California's NEM 3.0 turned this simple exchange into a complex calculation that can make or break your solar investment. And now Arizona, Nevada, and North Carolina are implementing similar changes. If you're considering solar in 2026, understanding net metering policy is more critical than panel efficiency or installer reputation.
Under traditional net metering—what California used to call NEM 2.0—every kilowatt-hour you send to the grid earns a credit equal to what you'd pay to buy that same kilowatt-hour. It's called "full retail" net metering.
Example with real numbers:
This 1:1 exchange made solar math beautifully simple. A 6kW system offsetting 100% of usage meant a $0 electric bill. But utilities argued they were losing money maintaining the grid while solar customers weren't paying their share. Enter the new net metering structures.
California's NEM 3.0, implemented in April 2023, fundamentally changed solar economics. Instead of full retail credits, you now get paid based on the "avoided cost" rate—what the utility would have paid to generate that power themselves.
NEM 3.0 reality check:
I've tracked 200+ NEM 3.0 installations over the past three years. Without battery storage, payback periods jumped from 6 years to 12+ years. With batteries, it's still 8-10 years. The economics completely flipped.
But here's what's interesting: Solar installations didn't collapse. They shifted. Battery attachment rates in California went from 10% to 85% in 18 months. Homeowners adapted by storing their own power instead of selling it cheap.
See real export rates and payback periods for your state's current net metering policy.
Get State-Specific Quotes →EnergySage affiliate link - I earn a small commission at no cost to you
After analyzing every state's current policy, I've found three main structures:
You get credited at the full retail rate for exports. These 12 states still offer it:
Credits based on wholesale rates or time-based values:
These states make you sell all generation at wholesale:
Based on utility commission filings I'm tracking, these states will likely modify net metering by 2027:
Connecticut: Proposing reduced credits starting January 2027. Current full retail customers would be grandfathered for 20 years. If you're considering solar in CT, install by December 2026.
Illinois: Adjustable Block Program changes coming. Net metering might shift to avoided cost for new customers in late 2026.
Michigan: DTE and Consumers Energy pushing for "cost-based" compensation. Decision expected by September 2026.
Minnesota: Xcel Energy filed for time-of-use netting. Public hearings scheduled for summer 2026.
New York: VDER already complex, but Con Edison wants further reductions. Watch the E-VDER proceedings.
Under NEM 3.0-style policies, batteries aren't optional—they're essential. Here's the math I run for every consultation:
Without battery (NEM 3.0):
With battery (NEM 3.0):
The battery pays for itself by avoiding the buy-high/sell-low trap. In California, I'm seeing 4-5 year paybacks on batteries alone.
See how batteries improve your ROI under current net metering rules
Even in tough net metering states, smart homeowners are finding workarounds:
1. Load shifting: Run pool pumps, EV charging, and appliances during peak solar hours instead of exporting.
2. Time-of-use arbitrage: In California, store morning solar (low export value) and discharge during 4-9 PM peak rates ($0.58/kWh).
3. Virtual net metering: Some states let you credit other meters you own. I've seen farmers offset their house with barn solar.
4. Behind-the-meter consumption: Size your system to minimize exports. Use 80% of what you generate instead of the old "oversize and export" strategy.
Most states grandfather existing solar customers into their original net metering terms for 10-20 years. This creates installation rushes before policy changes.
Current grandfather periods:
If your state is considering changes, installing before the deadline locks in better rates for decades. I saw this in California—installations spiked 400% in Q1 2023 as homeowners rushed to get NEM 2.0.
After crunching numbers for all 50 states, here are my top 10 for solar economics considering net metering, electricity rates, and sun exposure:
Notice what's missing? California, Arizona, Florida—the sunshine states with weak net metering.
Net metering policy now matters more than sunshine for solar economics. Full retail net metering can cut payback periods in half compared to avoided-cost structures. If your state still offers it, the window is closing.
My advice after tracking this market for years: Don't wait for better technology or lower prices. Lock in favorable net metering terms while you can. The grandfather clause is worth more than any future cost reductions.
And if you're stuck with NEM 3.0-style rates? Budget for batteries. They're not optional anymore—they're the key to making modern solar work.
Check my state-specific guides for your local net metering rules and deadlines. The policy landscape is shifting fast, and timing your installation right can mean thousands in additional savings.