Energy Production Cap

[M3 Pete]

What's your zip, array tilt and array azimuth ? Use that info and PVWatts. Run the model with 10% system losses, use the hourly output option and note any hours' output > 250 W * 20 panels = 5 kW.

The diff. between the sum of the model's hourly system output summed over a year and the sum over the same period derived by limiting the max. hourly output to 250 W will be an approx. of average annual long term loss from a 250 W micro.

I ran this, and got the following for June 21, the longest day of the year. 91301, 23 degree tilt, 135 azimuth

But I'm not sure what I'm looking at.

PVWatts Calculator 10 percent loss.pdf.pdf

[J.P.M.]

I ran this, and got the following for June 21, the longest day of the year. 91301, 23 degree tilt, 135 azimuth

But I'm not sure what I'm looking at.

[ATTACH]n413485[/ATTACH]

Read, or reread the PVWatts help info screens. It'll make what I'll write easier to understand.

Q: Are you familiar with the basics of working with spreadsheets?

If so, holler back and I'll talk you through it.

Come on back.