What changes after 2027? The end of net metering

Until now you can net the power you feed back against the power you draw. That is called saldering. It makes your surplus worth as much as the electricity you buy.

Why this flips the business case Once net metering ends, exported power earns only a low feed-in rate, often a few cents per kWh. Power you consume at the moment you generate it is then worth far more than power you export.

Where a battery suddenly helps A home battery stores your daytime surplus and uses it in the evening. Under the old rules that gained little, because netting already did it. After 2027 the battery captures the gap between the import price and the feed-in rate, and that gap is large.

Run your own situation in the calculator. The regime you pick, pre- or post-2027, is the single dial that moves the battery result the most.