I had a small 1.5 kw system installed by origin in 2014, however they installed a 2.5 kw inverter. I was wondering how easy it would be to add 4 more panels? is it cost effective...
HAs anyone done this ?
4 panels would produce about 4 Kw of power i think... if the extra power wasnt used by me and sent to the grid I get 17c a kw so approx $240 a year... if I used all the power then its worth $480 a year saving...
