Time connected to the grid: 16 hrs
Electricity produced: 15.1 kWH's
Solar Energy: 580 Langley's (A Langley is a unit of measurement for total solar radiation)
Utility meter reads: 2227
Weather: Mostly sunny
Comment: I tested the electric production using a "semi-automatic" solar tracker. (Semi-automatic = I moved the panels every hour!) You can see from the data that we got about 25% more power.