let it be a Solar thermal idea , or a Heatpump, a woodburner or just 2kw more PV instead of a small electonic box that costs and does not add to the whole idea
My thought too.
For people with typical household sized PV systems isn't solar thermal likely to be a better proposition to spend money on, even without RHI?
Off topic, but personally I think it's a pity that export meters were not factored into the FIT scheme as a standard thing (surely these highly qualified MCS accredited sparks could be trusted to fit an export meter as well as a generation one?), and perhaps with the balance between the generation and export tariffs tweaked to more encourage export. However, we've got what we've got...