Re: [RE-wrenches] Grid-tie Sunny Island

2010-04-11 Thread Dave Palumbo
We have a new (for us) application for grid connected net-metered PV with battery back-up as follows. The twist is that the entire load center in the house will be the protected loads panel. - 5kW PV ground mount located 250 feet East of their barn. - Will utilize AC Coupled

Re: [RE-wrenches] Ground Mount PV DC Disconnects and 690.13

2010-03-30 Thread Dave Palumbo
Wrenches, For a ground mounted PV array I do NOT see where 690.13, 690.14 mandates a DC disconnect at the array itself. My question is what do you do as best practice for safety, or for service of inverter disconnect. I have been using 600VDC SQ-D disconnects at our ground mounts and I'm

Re: [RE-wrenches] Supply Side Tap Overcurrent Protection

2010-03-28 Thread Dave Palumbo
Wrenches, I am tasked with reviewing an installation by a licensed electrician in Vermont and would like help with the following: Grid-tied PV system with battery back-up. AC point of connection is a supply side tap (done on customer side of utility meter ) then traveling 5 feet of #2

<    1   2