How much can you sell electricity for with solar panels?

Many solar panel owners ask themselves: What do I actually get for the electricity I don't use myself? The answer depends on several factors – here we review the most important ones and provide realistic examples of earnings from selling surplus electricity.

What does it mean to "sell electricity"?

When you produce more electricity with your solar panels than you currently use, the surplus electricity is sent out to the grid. You are then paid for supplying electricity to others – like a small, private power plant. Selling electricity can happen in two ways: Standard net metering scheme (via Energinet and e.g., Vindstød/Solstrøm.dk) You sell your electricity at a fixed, low price – typically approx. 60–80 øre/kWh. Through a balancing agreement / aggregator (e.g., NordCharger, Barry, etc.) You get paid based on the market price and can receive an extra supplement for helping with grid balancing. Here, the sales price can vary more – but the potential is higher.

Example: What can you earn?

Let's take a realistic example: Solar panel system: 10 kW Production: approx. 10,000 kWh annually Self-consumption: 35% without battery / 70% with battery The rest is sold to the grid

Without battery

Approx. 6,500 kWh sold annually Price: approx. DKK 0.75/kWh (standard net sales) Earnings: approx. DKK 4,875/year

With battery and grid balancing

Approx. 3,000 kWh sold smartly (timed and at a higher market price) Price: DKK 1.00–1.30/kWh (via aggregator) In addition, up to DKK 2,000 in grid balancing earnings Total earnings: up to DKK 5,000–6,500/year

Factors affecting the price

Electricity exchange spot price: The sales price varies daily and hourly Aggregator agreement: Good players can help you time the sale Grid balancing: Extra income for making your battery available to the grid Tax conditions: Sales up to DKK 10,000/year are tax-free for private individuals

Tips for getting the most out of your sales

Consider a battery: With a battery, you can sell electricity when the price is highest – not just when the sun is shining. Use an aggregator: Players like Barry or NordCharger can maximize your electricity income and handle sales automatically. Optimize your self-consumption: The more you use yourself, the less you pay to the electricity company – and that is still the biggest saving.

EcoRay’s recommendation

We recommend looking at electricity sales as one element in an overall strategy. It is an extra income – but your biggest financial gain still comes from what you don't have to buy from the grid. In EcoRay's report, you get a full calculation of your potential earnings – both from self-consumption and sales – so you get the full overview.