The cost of installation can depend on how many panels you need, whether you choose to have battery storage, and what size of battery you require. The cost of a panel-only installation by Octopus starts from £5,170 (for 2 panels). A 10 panel installation and a 5kWh battery (our most popular system) costs £10,027. We'll ask you to pay a fully refundable deposit of £200 when you agree to your quote, then you'll have the option to pay monthly with a fixed-term loan, or pay in full after installation. 

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What's the average cost to have solar panels installed by Octopus Energy?

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