Half a million homes are now solarised in Britain but only around 400 commercial-scale solar PV systems have been installed. What is stopping businesses from investing in solar?
As the cost of solar energy plunges, the solar industry is growing at what some describe as "lightning speed". But that is a global picture. Nationally, the situation varies greatly, depending on the attitude of the incumbent government.
When it comes to domestic market growth, and building a national solar industry, the UK is very much in the "jury out" category at the moment. This is partly because of an internal battle of ideas between solar believers and those who envision the UK as a "gas hub", on the road to which solar is a distraction that might put off investment in UK fracking.