4 ms·

I have found it to be surprisingly proportional. I'm sure it gets slightly cheaper per kwh with large systems, but not by a lot. I had quotes around $2.5/watt f

by gibybo 8y ago

I have found it to be surprisingly proportional. I'm sure it gets slightly cheaper per kwh with large systems, but not by a lot. I had quotes around $2.5/watt for 9 kW systems and $2.5/watt for 15 kW systems.

driverdan 8y ago
Fair point since $2.5/W is over two thirds installation. If you buy the panels and install them yourself you'd save a lot of money.