What NEM 3.0 Changed
NEM 2.0 credited solar exports at the full retail rate - homeowners effectively "sold" excess power back to the utility at the same price they bought it. NEM 3.0 credits exports at a much lower "avoided cost" rate, typically 75% below retail. The economic incentive to export disappeared almost overnight when the policy took effect.
This fundamentally changes the value proposition. Under NEM 2.0, system size optimization was about maximizing annual production regardless of when it was generated. Under NEM 3.0, it is about maximizing self-consumption - using the power when you generate it rather than sending it to the grid.
Market Impact
California residential solar installations dropped significantly in the first year after NEM 3.0 implementation. Some estimates suggest a 50%+ decline compared to pre-NEM-3.0 run rates. Contractors who did not adapt saw their volumes collapse.
The drop was not uniform. High-electricity-use households, battery-attached systems, and time-of-use-optimized designs maintained stronger economics. The product-market fit narrowed, but it did not disappear.
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Battery storage became essential rather than optional under NEM 3.0. Batteries let homeowners store daytime solar production and use it during evening peak hours when rates are highest and export credits are lowest. The economics shifted dramatically in favor of solar-plus-storage.
Contractors who were already selling batteries found the transition easier. Those who had to build storage capabilities from scratch faced a steeper learning curve and delayed adaptation.
Sales Process Changes
The NEM 2.0 sales pitch - "your meter runs backward, you get credit for everything you produce" - stopped working. NEM 3.0 requires a more sophisticated conversation about self-consumption, time-of-use rates, battery economics, and long-term utility rate trends.
This is a harder sale. It requires more education, longer appointments, and better-trained salespeople. But it is also a more defensible sale - the value proposition is real, just more complex.
Lessons for Other States
Other states are watching California and considering similar reforms. The lesson is that reduced export credits do not kill the solar market - they change it. Contractors who prepare for the shift by building storage capabilities and training on the new value proposition will survive.
If your state has robust net metering today, use the time to prepare. Build battery partnerships, train your team on storage sales, and develop proposals that show self-consumption value. When the policy changes, you will be ready.
Sources
The external data in this article draws on the sources below. Figures described in the text as estimates or industry triangulations are directional and are not attributed to a single dataset.