Re: [RE-wrenches] GT with BB

I'm sure Storm Power Components would have done an excellent job of fabbing what we needed but we didn't have the time to work through their lengthy design/quote/build process.  So the bus bars we used were purchased from Mcmaster-Carr https://www.mcmaster.com/products/bus-bars/   they

Re: [RE-wrenches] GT with BB

Hi Bill, I’m curious where you source your bussing and/or especially the “bridge” pieces? Thanks, Amos Amos Post Integrity Energy W 802.763.7023 C 802.291.2188 ienergyVT.com Facebook

Re: [RE-wrenches] GT with BB

Hi Bill Looks good to me! I like the idea of all the copper/connections behind a plexiglass dead front. Makes a lot of sense and seems safe. I’m wondering what your inspectors say about it or how you convince them? It’s definitely got me thinking about doing a job I have in mind with buss

Re: [RE-wrenches] GT w/ BB

As does Watteredge.-GlennSent from my 'smart'phone, so please excuse typos and spelling errors.-- Original message--From: William Miller via RE-wrenchesDate: Tue, Sep 19, 2023 2:09 PMTo: RE-wrenches;Cc: William Miller;Subject:Re: [RE-wrenches] GT w/ BBStorm Copper has tables. William

Re: [RE-wrenches] GT w/ BB

Storm Copper has tables. William Miller Miller Solar.com 805-438-5600 www.millersolar.com On Tue, Sep 19, 2023 at 7:13 AM Jay via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Thx Michael > > How do you calculate buss bar size? > Is there a specific formula or table I can find? > >

Re: [RE-wrenches] GT w/ BB

For a general rule of thumb, I use NEC 366.23 "ampacity of conductors in sheet metal gutters". For anything large or needing inspection, I have my electrical engineer design the bussing as he will factor energy density and temperature rise across the bussing. It's pretty straightforward for DC

Re: [RE-wrenches] GT w/ BB

Thx MichaelHow do you calculate buss bar size?Is there a specific formula or table I can find?ThxJayOn Sep 18, 2023, at 5:15 PM, Michael Morningstar wrote:I've been making gutter bus wireways that run the length of batteries and inverters allowing for exact lengths of cables. I think I posted a

Re: [RE-wrenches] GT w/ BB

I've been making gutter bus wireways that run the length of batteries and inverters allowing for exact lengths of cables. I think I posted a picture of an exceptionally large one. 24' long. I'm looking at the rack mounted set up because the bussing and cabling is done. 3 racks of 6 5kwhr

Re: [RE-wrenches] GT w/ BB

Sounds like a good design. As a tangent question to 13 parallel batteries, such as you’ll need Michael. How are people wiring larger numbers of lithium batteries together in parallel?Massive buss bars which I’m not sure how to do in a code compliance way. Or Not worrying about different cable

Re: [RE-wrenches] GT w/ BB

Jay, I'd like to design for 60kw supply and 100kWh battery. I think I'm going to try the Discover rack mount set up rather than AES's and custom bussing. Jason, That's exactly what I was thinking, if I go the Sol-Ark route. Last time I ordered custom panelboards like that, they were six months

Re: [RE-wrenches] GT w/ BB

If 40kw is the peak and then there are new added loads, what 50-60kw?  If it was me I’d be designing the inverters to handle the 50/60 kw with future expansion capabilities beyond that. Then how much kWh of storage are you going to need or maybe are planning for?At some point maybe looking at a

Re: [RE-wrenches] GT w/ BB

I like the Sol-Ark idea having had a few dual-unit successes recently. In terms of combining them, the Sol-ark manual has a good triple unit wiring diagram on page 53. You would have to use two 400A panelboards with three 200A breakers for each to follow this diagram. However, I don't see the

Re: [RE-wrenches] GT w/ BB

( thought they were great at the time ) the SA’s have made delivering power so much better. Thx peter From: RE-wrenches On Behalf Of Michael Morningstar via RE-wrenches Sent: Monday, September 18, 2023 1:13 PM To: RE-wrenches Cc: Michael Morningstar Subject: [RE-wrenches] GT w/ BB I've

[RE-wrenches] GT w/ BB

I've been asked to build a back up system for a grid connected estate. We haven't done many of these and I thought it best to ask those who have some questions before I go about reinventing the wheel. Here's the existing infrastructure. 1) 400amp Metered Main Distribution Panel with six 200amp