Frequently asked questions
Why is personal use worthwhile?
Solar electricity you use yourself saves the entire purchase price, that is, energy, transmission and tax. Surplus sold to the grid usually earns only the exchange price, from which the seller may deduct a margin.
Where can I get a yield estimate?
From the panel supplier. Yield depends on the roof's orientation, tilt, shading and location.
Electricity Price Radar brings together the topic's up-to-date figures, deadlines and services. Open Electricity Price Radar →
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The calculator gives an indicative estimate and does not replace the advice of an authority, bank, insurer or accounting firm. The calculator's figures and their sources are shown below the calculator.