[RE-wrenches] Metal Roof Attachment

I've done PV on lots of standing seam and 5V metal roofs, but not one like in this picture: https://docs.google.com/leaf?id=0B4VSfTqIfgFmYzQ4MjFhODktYzg4Yy00OTFlLWF kZWItMTg3MWQ1NTU2ZDBmhl=enauthkey=CMK9hLsE I think it is called an R-Panel. Trusses fall directly below the tall ribs. I was

Re: [RE-wrenches] Metal Roof Attachment

HI Jason, I would use the direct power and water version. I've used both and I don't like the Snapnrack. While its tall enough its not long enough for my taste. Like a foot thats too short, its hard to anchor without tiping. Also I would advise some sort of caulk or soft sealing spacer

[RE-wrenches] Off-grid system monitoring

Wrenches: An off grid client has a system monitor that has not been very a satisfactory. I belive it is a Trace Meter 500. It is not calibrateable and the results are not reliable. Is there a newer monitor that will show battery voltage and charging and discharging amps and amp/hours that

[RE-wrenches] Can I handle the voltage drop?

Folks, I am working on a proposal. It's a ground mount 300+ feet from the meter. There is an existing, near by run of #2 copper I can tap into. The desired system is relatively large, 64 amps AC max. I have modeled the yield using PV watts hourly data, applying a power loss based on the voltage