So I have 25% loss. I know my inverter uses about 10% (Solinba on Grid Solar inverter 500w DC22-56v to AC90-130v for 24v Solar System USA plug). So I’m looking at a 15% loss. The 6 awg wire has no more then 5% loss. So 10% loss that could be my angle, clouds, to hot (Phoenix), inverter lied about stats, or the panels.

Little tip for DIY I found is with the right inverter try getting the volts as high as you can. More volts = less loss, and less wire needed. Example the power company uses 750,000 volts allowing those somewhat small wires to feed house after house.

Renogy make this same 100 watt panel however HQST gave me the best deal. Overall I’m happy.

Stuff needed (From Memory)
4 x 100 watt panels $480
125 foot 6 awg wire $125
10 foot 8 awg wire $6
inverter $85
mc4 connectors $6
10 foot 2-inch pole $22
20 foot unirack large $40
20 foot unirack small $30
DIRECTV mount parts (got free) $65
DC bus box $6
2 foot trench “Just my back here”
bolts, washer, other $40
Conduit $30
2 spray cans of rust paint $10
5 foot deep hole “My back”
320 pound of cement $12
Power meter $15
——————
$837 – $902 (APS Peek rates will return this investment in about 5-6 years)