net metering
NEM 3.0
solar compensation rate
avoided cost
grid modernization
The Evolution of Net Metering: From 1:1 Credit to Compensation Rates
2025-10-24T00:00:00.000Z
π Grid Compensation: How Utilities are Changing Solar Buyback Rules
Net Metering (NEM) is the policy that determines how much you get paid for excess solar electricity. It is rapidly changing across the US and globally as solar adoption grows.
1. Net Metering 1.0 (The Gold Standard)
The original policy that fueled early residential solar growth.
- β **1:1 Retail Rate:** Every kWh exported to the grid earns a credit equal to the full retail price of a kWh imported from the grid. This maximizes savings and shortens payback periods.
2. The Shift to Compensation Rates
New policies aim to reflect the 'true cost' of grid services.
- **Net Metering 3.0/Successor Tariffs:** Policies now often compensate exported solar at a rate lower than the retail rate (often at the **Avoided Cost** or wholesale rate).
- **Impact:** Since the buyback rate is lower, the financial incentive shifts from exporting power to maximizing **self-consumption**βusing the solar power instantly or storing it in a battery.
- **Fixed Charges:** Many new tariffs include unavoidable fixed monthly charges that reduce the overall savings generated by the solar system.
The Battery Imperative
As net metering rates drop, the financial necessity of adding a home battery storage system increases. Batteries allow the homeowner to store the self-generated power instead of selling it back cheap, and then use it later when the grid power is expensive. π‘
