You'll generally need an inverter that's 75% as big as your solar panel system's kilowatt-peak (kWp), which is how much solar energy it produces at standard test conditions.
[pdf] The AWG sizing system is based on the number of times the wire is pulled thinner. For example, a Zero Gauge (0 AWG) has a diameter of 0.325 inches (8.25 mm), giving it a cross-sectional area of 53.5 mm2. After one additional pull through the wire stretching machine, we get One Gauge (1 AWG) wire with a diameter. .
The wire dimensions may be identical, but not all 10 AWG wires are identical. Do not be lured into buying cheap solar cable online. The lower-cost versions of 10 AWG are not made of pure Copper. Suppliers will use aluminum or copper-coated aluminum wire and sell this. .
Payback time on home solar systems has fallen below five years and continues to decrease as grid power costs increase, and PV technology becomes more widely used. The cost of wiring.
[pdf] Why 10-American-Wire-Gauge (AWG) is selected as the standard for external connection of solar arrays due to the following:Oversized for safety & voltage dropLow resistance for solar current of 30 Amps per single panelThe voltage drop over distance is lowCable is flexible
[pdf] In May 2009, Commerce Secretary announced that he will co-chair a smart grid meeting with Secretary of Energy in Washington, D.C. The meeting was to bring together industry and government leaders to begin a critical discussion about developing industry-wide standards for smart grid technologies. Industry leaders at this meeting were expected to pledge to harmonize industry standards and to commit to a timetable to reach a standards agre.
[pdf] 
