How to Sell Electricity from Solar Panels, and How Much Can You Earn?

When your solar panel system produces more electricity than you use yourself – and your battery is full – the surplus electricity can be sold to the grid. This happens completely automatically, and with the right setup, you can earn money from your flexibility and at times when electricity is most valuable.

How Does It Work?

Electricity sales typically occur in one of two ways: With intelligent control and grid balancing, you can take advantage of fluctuations in electricity prices and even get paid to charge or discharge the battery when the grid needs it.

What Can You Earn?

Here is a realistic example for a household with a 10 kWp system and a 10 kWh battery: The amounts depend on solar hours, electricity prices, and your self-consumption rate.

Example in Practice:

A sunny day in May: At 12:00 PM: Production is 9.2 kWh per hour. The home only uses 2.5 kWh → the battery is filled. Once the battery is full, the rest is sold directly to the grid. The electricity price is high in the middle of the day → you earn money on the difference. With an app solution, you can follow in real-time: How much you produce (e.g., 9.2 kWh/hour) How much you sell (e.g., 3.8 kWh/hour) How much you earn (e.g., DKK 2.25/kWh → DKK 8.55 per hour)

How to Get Started?

You need a hybrid inverter and a battery. You sign up for an electricity market, often via a partner like Nordpool, Entelios, or similar. EcoRay helps you with everything – from technical setup to choosing a provider.

At EcoRay:

We ensure that your system is ready to sell electricity intelligently – not just automatically, but also when it is most advantageous for you. You can follow everything in real-time in the app. You take advantage of electricity prices, not just produce electricity blindly. You become an active participant in the electricity market – and get paid for it.

In short: You don't just sell electricity – you negotiate with the market. And it can be seen directly in your finances.