EcoRenovator - View Single Post

Geo NR Gee · 09-18-13, 11:36 PM

Today we had a solar panel sales company do some measurements on my house and check the proposed location to put the solar arrays. We won't get any estimates back until sometime next week. Being impatient as I am, I did a little rough figuring.

Our electrical usage is about 25kwh per day. 25 x 30 days = 750 kwh per month. Our peak sun hours are about 3.57 (which seems low). If I wanted the solar panel to offset my electricity usage by 100% then its 9103 watts total per year estimated. 9103 / 250 watt panels, then I would need 36 panels?

Does that seem right? Are we trying to offset 100% of the electricity we use?

09-18-13, 11:36 PM	#1
Geo NR Gee Journeyman EcoRenovator Join Date: Jan 2011 Location: Seattle Posts: 326 Thanks: 109 Thanked 23 Times in 18 Posts	Solar Panel estimator guy came today Today we had a solar panel sales company do some measurements on my house and check the proposed location to put the solar arrays. We won't get any estimates back until sometime next week. Being impatient as I am, I did a little rough figuring. Our electrical usage is about 25kwh per day. 25 x 30 days = 750 kwh per month. Our peak sun hours are about 3.57 (which seems low). If I wanted the solar panel to offset my electricity usage by 100% then its 9103 watts total per year estimated. 9103 / 250 watt panels, then I would need 36 panels? Does that seem right? Are we trying to offset 100% of the electricity we use?