Re: [RE-wrenches] Rapid Shutdown for Ground Mounted Multimode (Battery) Inverters

Unfortunately Ray I have had 2 cases where the Local building inspector thought that it was a wildfire risk to not have RS, and yes on a ground mount. Too long to go into here but in the rurals where my clients are, it can be easier to comply. After about 4 phone calls it was easier to just do

Re: [RE-wrenches] Rapid Shutdown for Ground Mounted Multimode (Battery) Inverters

Here's a page I put in my plan sets to make its clear for the AHJ.  I have not had this challenged, and we have never implemented Rapid Shutdown on a ground mounted array. Ray Walters Remote Solar 303 505-8760 On 2/13/20 2:57 PM, Christopher Warfel wrote: This points out the problem of inco

Re: [RE-wrenches] Rapid Shutdown for Ground Mounted Multimode (Battery) Inverters

This points out the problem of inconsistent interpretation due in part to conflicting or unclear language. I always like to ask how many basements have protection around the NM conductors running through and along the rafters. I know several people on CMPs are on this listserv.  I am hoping tha

Re: [RE-wrenches] Rapid Shutdown for Ground Mounted Multimode (Battery) Inverters

It all comes down to where you install the PV disconnect.  We put it on the wall before the conductors enter the building or at the array, therefore 690 doesn't apply.  Proper signage is required indicating multiple power sources and listing the locations of their disconnects. Also, this isn't

Re: [RE-wrenches] Rapid Shutdown for Ground Mounted Multimode (Battery) Inverters

Ray, I spent a bit of time today with a person who inspects for several state renewable energy programs and to summarize, this person said the opposite of what you said, and finish saying "seems pretty clear cut".  We did review three sections of 690, and one from 705.  I pointed out that these

Re: [RE-wrenches] Rapid Shutdown for Ground Mounted Multimode (Battery) Inverters

This has been discussed to death in previous Wrench strings. Just to cut to the chase: please review NEC 2017, Figure 690.1(b) Note:(2). /The PV system disconnect in these diagrams separates the PV system from all other systems.// / The inverter, charge controller, batteries etc are no longe

Re: [RE-wrenches] Rapid Shutdown for Ground Mounted Multimode (Battery) Inverters

Hi Chris, A few times and my back-up with a schneider system is their rapid shutdown. In the end the inspector comes around and realizes there is little gain for an offgrid ground mounted array for fireman. You do have to educate them and if they are insistent on being a bonehead, install the RS f

[RE-wrenches] Rapid Shutdown for Ground Mounted Multimode (Battery) Inverters

I got involved in a long discussion on Rapid Shutdown compliance for battery multimode, grid interconnect inverters that have a ground mounted array.  At one point, ground mounted array was not supposed to be subject to Rapid Shutdown unless there were dc conductors on the building.  NEC 2017 s

Re: [RE-wrenches] Direct solar options for stock tank de icing

Ritchie makes a passive heated waterer that we have used here in the Shenandoah Valley of Virginia with good results. It consists of a super insulated water vessel, with floating balls that block the water opening, the cows learn to push down the balls to let some water up. You can even let a l

[RE-wrenches] Looking for Solar World SW285 or similar

Friends: I am looking for 12 Solar World SW285, 60 cell or similar panels to expand this system. We are looking for these panels in white back sheet in silver frames to match the existing. We

[RE-wrenches] THD problem solved

Friends: I was whining on this forum recently about an off-grid system that was tripping GFI and AFCI breakers and devices. The problem seemed to be related to high THD on the voltage wavefor