Some of the costs are not going to come down much more. Installation labour, roof panel frames, inverter etc. etc. can come down a little but not by much. http

Some of the costs are not going to come down much more. Installation labour, roof panel frames, inverter etc. etc. can come down a little but not by much. https://electrek.files.wordpress.com/2016/05/chart.jpeg?w=771&h=514 https://electrek.files.wordpress.com/2016/05/chart.jpeg?w=77... The price curve has to start flattening out soon! (I hope it doesn't, but I can't see how you can carry on achieving 50% price drops so rapidly...)