Zonnedimmer

With the Zonnedimmer app, you can see your energy generation live, and your solar panels are automatically switched off when the price is negative or grid congestion occurs.

In the app, you set your preferences and energy contract. After your approval, your solar panels will be dimmed when the price is negative (with a dynamic contract) or when your grid operator (for a fee) requests a temporary reduction in production to maintain a stable grid.

More information:
https://www.zonnedimmer.nl