[RE-wrenches] Field convertible Lithium bank

2021-03-04 Thread Mac Lewis
Hey wrenches, Is anyone familiar with a solid Lithium solution that could be reconfigured in the field from 24V to 48V in the future? Probably in the neighborhood of 20 kWh. Thanks -- Mac Lewis *"Yo solo sé que no sé nada." -Sócrates* ___ List

Re: [RE-wrenches] Enphase IQ7A 3 phase limitations

2021-03-04 Thread Jason Szumlanski
Mac Lewis was nice enough to run some Helioscope simulations for me (thank you, Mac). The numbers were almost identical to PVWATTS in that per kW, you get about 1% less energy yield with a 420W/IQ7A than a 385W/IQ7+ when operating at 208Vac. Given that the IQ7A is more costly, and presumably the

Re: [RE-wrenches] Code Question

2021-03-04 Thread Brian Mehalic
300.18 Brian > On Mar 4, 2021, at 1:11 PM, Drake > wrote: > >  Hello Wrenches, > > I believe it is a code requirement to install conduits in their entirety > before pulling wire through, and that this applies to all types of rigid > conduit. > > Is this correct? Does anyone know where

[RE-wrenches] Code Question

2021-03-04 Thread Drake
Hello Wrenches, I believe it is a code requirement to install conduits in their entirety before pulling wire through, and that this applies to all types of rigid conduit. Is this correct? Does anyone know where in the NEC this is stated? Thank you, Drake Drake Chamberlin Athens Electric

[RE-wrenches] SMA Piggyback RS-485

2021-03-04 Thread Jason Szumlanski
Does anyone have two of these on the shelf that will work with both Sunny Boys (SB9000TL-US-12) and Sunny Islands (SI6048-US-10)? If you're willing to part with them I need a couple quickly. Contact me off list please. ___ List sponsored by Redwood

Re: [RE-wrenches] Enphase IQ7A 3 phase limitations

2021-03-04 Thread Will White
Jason, You should dig into the PVWatts help documentation. They get into pretty good detail on how their calculations work. You might find the answer you're looking for there. Thanks, Will -- *Will White* Curriculum Developer e: w...@solarenergy.org w: www.solarenergy.org p: 802-272-3092

Re: [RE-wrenches] Enphase IQ7A 3 phase limitations

2021-03-04 Thread Mac Lewis
Hi Jason, I think Helioscope is more suited for this analysis. If you send me the location, tilt, orientation, array type (roof or ground) and modules that you'd like to compare, I can quickly model this for you. Quite easy to do. They also have a month free trial I believe if you would like to