@General Lighting 322242 wrote:

the first plan is American and would be unlikely to work on the 230V AC single phase UK power system [/quote]

i’ve spoken to him and he provides kits for a number of countries, inlcudinding the UK

Quote:

In this country, feeding electric back into the grid needs approval from both your electric supplier and your distributor (such as Western Power Distribution, EDF or SSE) as well as a part P qualified sparky to do the work because of to the safety issues and it has to be co-ordinated with the distributor so the service fuse can be pulled to get your meter/tails/changeover kit/inverter connected safely. (this is all complicated and expensive, more so due to the bureaucracy and conflicting commercial interests at play here)

granted the actual hook up has to be done by someone qualified, but you can save about £5000 by building the rest of the kit yourself