- Germany’s new rules make it easier for EV owners to earn money by selling electricity back to the grid.
- Drivers need a V2G-capable car, compatible charging equipment, and the right electricity contract.
- Nationwide implementation could take until September 2027, and earnings will depend on costs and contract terms.
Your parked car does little other than depreciate and lose you money over time. But that may change if you have an electric car in Germany because the country wants to streamline EVs earning money by supplying electricity back into the grid when it’s needed most.
Yesterday, Germany’s Federal Network Agency adopted rules called MiSpeL, covering electricity storage and bidirectional charging points. The idea is pretty simple: store cheap electricity in EV battery packs, then sell it when prices rise.
But while that sounds simple enough, the paperwork to make it happen has been considerably less straightforward. This is because previously, mixing grid electricity with locally generated renewable power complicated eligibility for Germany’s renewable energy support program.
The new framework lets owners store solar power and grid electricity in the same battery without losing eligible solar subsidies. Previously, batteries generally had to store only locally generated renewable electricity to qualify for subsidies. Charging the same battery from the grid went against that condition.
The new rule gives ways to account for the two sources separately. They also reduce certain fees on electricity sent back to the grid, although those fees still apply to electricity used for driving.
However, an essential hardware requirement remains. To take part, EVs must support bidirectional charging capable of vehicle-to-grid (V2G) operations, paired with compatible charging equipment, metering, and a specific electricity contract. The type of bidirectional charging is important, because simply having a vehicle-to-load (V2L) outlet for plugging in a coffee maker doesn’t qualify the car to trade electricity.
The VDA (the main trade group for Germany’s car industry) liked the updated rules, noting that regulators listened to their feedback about how power is measured. Now, their main goal is to implement these rules quickly and evenly across the country.
This won't happen right away. Grid and meter companies have until September 30, 2027, to get ready, unless they choose to opt in sooner. Additionally, a simplified setup for home solar panels still needs official approval from European Union regulators.
Germany isn’t guaranteeing your electric car will pay for itself. Instead, it’s giving you a simpler way to use the battery in the EV you already own to earn back some money. Whether it’s worth it depends on the cost of the required equipment, the contract terms, and how much the car stays plugged in.
Germany’s effort to make V2G easier is part of a broader global trend. In the United States, there isn't one set of rules for the whole country. Instead, it’s a mix of state laws and local power companies trying their own setups. California is pushing to mandate that all new electric cars can send power back to the grid, while other states are testing the idea using parked electric school buses as giant backup batteries during hot summer days when power use spikes.
In Europe, other countries are trying different approaches to involve EV owners. The Netherlands, for instance, is putting power-sharing chargers right on public streets so people can automatically buy cheap power and sell it back when prices jump. In the UK, energy companies offer special plans that pay drivers with credits on their electric bills for giving energy back to the grid. Meanwhile, in France, carmakers are starting to bundle bidirectional charging-capable home-sharing chargers with new car purchases.
