If I was to buy this house, I was wondering the best way to take advantage of this arrangement, and thoughts from anyone else here who are using PV cells to partly power their home? Ideally the power generated is best used in the house, as it is essentially free power, which the electricity retailer is buying for a pittance. Essentially it appears that all the house owner has achieved so far, is getting is slightly cheaper power. In the UK I believe that that generated power rolls back the meter, so in many cases the power companies actually pay you for over generation. But I can't see that applying in NZ, due to them paying it back at a less that wholesale rate.
Also I was wondering what is the most solar freindly/environmentally friendly power company, eg. which power company pays the best rates for solar generated power.
Currently I am not sure why the invertors aren't powering the house directly, I mean can it be done and what equipment is needed? There is currently no battery storage to store any oversupply, and they were planning on installing that at some stage. I was thinking that these new Tesla Powerbanks could be a solution for it, when they finally make it into NZ, rather than having a shed of lead batteries. Would be interested in peoples feedback. I am guessing this will become a more mainstream thing in coming years with these new Tesla Powerbanks.