scottcannon
New Member
- Joined
- Mar 17, 2022
- Messages
- 5
I have a (almost) flat-roof residence in Tucson, AZ (32°N latitude) and want to design and install a high-quality DIY grid-tied system. My annual residential energy usage (reported by utility) is 13,438 kWh. Utility recommends a 6.6kW (DC), 22-panel (423 sq.ft., 39.3 sq.m.) system. Panels point due south, no obstructions. Looking to have adjustable panel pitch (8° June to 55° Dec from horizontal) to maximize output. Assuming Direct Normal Irradience (DNI) of 7.62 kWh/m2/day (www.solarenergylocal.com), annual insolation available to panels assumed to be 109,300 kWh. Looking for overall system recommendations (panels, inverter, system voltage, wiring, etc.). Thanks in advance!