The price of domestic solar in the UK has failed to decline – and even rose marginally – in the two years since the feed-in tariff was revised, government statistics have revealed.

Data released by the Department for Business, Energy and Industrial Strategy (BEIS) this morning revealed that between April 2017 and March 2018, the median cost of installing residential-scale (sub-4kW) solar in the UK stood at around £1,701 per kilowatt.


The cost data is produced by BEIS using data sourced from the Microgeneration Certificate Scheme database of completed installations, producing an average from the 19,708 installations the database included.

The figures, released annually, reveal that the cost of installing solar at the residential scale has failed to fall as expected in the UK under the revised feed-in tariff scheme, and in fact has risen slightly under

In the 2015/16 reporting year the median cost of installing solar at the residential scale amounted to £1,691 per kilowatt, staying broadly flat with the preceding year at £1,692.

This has occurred during the same time at which the number of domestic solar installations has collapsed. In 2015/16 the department tracked the cost of installer from more than 95,000 residential-sized installations, but in the most recent reporting year this had fallen by nearly 80% to just over 19,700.

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