The energy a solar installation produces in a year per unit of installed capacity, expressed in kWh/kWp. In Wallonia the accepted order of magnitude is 950 to 1,000 kWh/kWp a year for an unshaded, due-south roof at 35°.

Also known as: annual yield, kWh/kWp

Source: Énergie Commune

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Solar panels: profitability and surplus — Decide whether to install based on your situation, then choose what to do with the electricity you do not use.

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