I'm getting 8kw installed on my roof next month and the pay off is somewhere between 10-12 years. That's with NC's electricity costs being cheap at ~11c per kWh

I'm getting 8kw installed on my roof next month and the pay off is somewhere between 10-12 years. That's with NC's electricity costs being cheap at ~11c per kWh - in other areas this will drastically change.