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So I searched the forum and did not find anything that i could figure out: We took over an oil-field lease of 200 acres and while doing a site survey they discovered that the previous tenants had left (4) of those DC Solar Trailers (w/o generators) in place. Everything seems to be still...

I posted part of this as a response earlier on another part of this Forum but I thought I would share here ... I got thrown into Solar completely unexpected and had to hit the ground running - and honestly - knew ZERO about solar anything ... Although this is a DIY site for mostly homeowners -...

My company has tasked my team to design, build, install, service and support approx 50 (fifty) OFF-GRID systems. Absolutely no way that my team can remotely do this - we don't have the expertise, time, capacity or training. We are looking for a contractor - with experience - that can install...

Just wanted to take a moment and say THANKS to an YouTube site called UNPLUGGEDTEXAN ... ... not sure if he is on this particular website or not BUT his videos are EXCELLENT for the beginners ... and more ... His descriptions are great and the way that he will also post documentation on...

So we are in the process of purchasing (2) of the MS Barcelona's .... from what we have seen and heard they are bullet proof - can take in up to 600VDC -- and from my experiences with MS they have customer service beyond all others (ie they actually pick up their phones from 8-5) (and they...

Does anyone have the Renogy 100A MPPT?? If so ... Pros/Cons... Thanks

we are looking at buying (30) DEESPAEK LiFePO4 Battery 200Ah 12V Lithium Batteries for work .... they are very inexpensive ... i cannot find any Youtube videos on a teardown ... just wondering if ANYONE HAVE ANYTHING GOOD/BAD to say ...

Not sure if this guy is on this forum or not BUT he is from Belgium and presents clear, simple, direct highly professional videos of exactly what a newbie needs and does so with the skillset of Will and Andy (off-grid-garage) .... He (https://www.youtube.com/@easypowerwall/videos) also includes...

Hi again from the laziest engineer that you will ever meet -- I need to purchase (6) of these ... (Have zero time to build them)) Would go with signature solar since they are in Texas ((@SignatureSolarTech)) BUT they do NOT have a heater in theirs - seriously - its 2023!! (PLUS we are still...

We are about to install (3) banks of 280A 48V LiFePO4 batteries and connect it all together to feed either a 48V Sunny Island or a 48V EG4 -- I can't remember which one since the other team is doing that part ... BUT my question is -- and again being the laziest engineer that this oil company...

SO - one of my remote teams has been told that they need to develop a BESS (Battery Energy Storage System) that can supply a peak demand of 1.8 megawatt (MW) for one hour for a 13.2 kilovolt (kV) grids. Basically a storage system with energy storage capacity of 2.5 MWh Yeah - pretty damn big...

@signaturesolarHelpUs @SignatureSolarJames @SignatureSolarJarrett @SignatureSolarPeyton @SignatureSolarTech (2) questions. And maybe I missed this in the manual - (1) Looking through the slots in the airflow screen on the AC input side you can see (2) GREEN lights on a circuit board...

You ever run into one of those companies that you can't figure out why they aren't ruling the world but then after dealing with them you understand fully why they don't and won't. I have met several of them in the last 5 years of doing this professionally for a major oil company. Signature...

website: https://beenebrothers.com/shop/ So we have NEVER used this location/person before but I thought i would just throw it out there. My boss is needing to get 60-100 used panels for a project he is about to do for a non-profit on the side and when he searched FACEBOOK MARKETPLACE this...

So we have a four day weekend starting today and one of the Security guys invited us all to his ranch near Austin to hang out and fish, horseback ride, swim, and eat 4 days of Free BBQ ... (He had me at BBQ) ... anyway the only condition was that during that time we would help him put up a small...

we got some equipment from our sister corp in England and I need to find (80) 240V 50Hz 5Kw generators to run the equipment. If anyone knows of any place place let me know ... Thx

So thought that I would run this by some of you and get your thoughts on the design. I need to operate a helicopter safety beacon (MEDEVAC) that is 120V 60Hz 12A and run it 24/7 ... 365 ... infinity ... Beacon is on constantly ... what I do currently have are (10) 400-455 solar panels that...

@Off-Grid-Garage I just wanted to take a moment and honestly say thanks to @Off-Grid-Garage for taking so much time and effort in making the videos that he does. Its hard to realize how small (or large) this world really is - but I highly doubt that Andy ever thought that the videos he was...

So I say this after having hooked up well over 25 MPP Solar systems at work ... so this is not one of those bitching for no reason type things (well it actually is) ... BUT ..... The MPP Solar is an excellent system - until its not. Until you need customer support. Until you try to read one...

I have sort of asked this before - BUT this time we have "true" z-purlins with that little curve lip on the end that's killing us ... We have about 60 panels to mount and instead of them sending us the mounting hardware equipment we requested - they sent us these 20 foot long "Z-channel" /...

So last week they flew 2 of us back to SFO to meet with some of the CATL folks to give us a demo of the sodium-ion batteries that will probably be hitting the market late 2022 but for sure mid 2023. The first 15 minutes of the conference was them explaining how LFP batteries - which they have...

I need recommendation for 100A 24V 16S BMS with Bluetooth.... THX

Hi fellow DIYSOLARFORUM fanatic's and hopefully @MPP Solar USA - Ian Roux and maybe @Will Prowse @Otisd85 AND @BentleyJ is reading this also (since they seem to have had the same issue)... (Ian below is really a cut and paste of what my boss SAM just sent you earlier in an email) ... ////...

anyone ever use their stuff ?? What do you think?? The corporate guys in LA wants us to switch from the DALY's to anyone BUT DALY and they want us to try some of the BMS's that these CA guys have made by RadioBTech .... Before I have them send me a dozen or so .... would like your opinion ...

so I was watching a little YOUTUBE to get ready for the night shift ... YEP spending New Years Eve on a 24 hour shift out here in the Middle of South Texas as the On-Call technician ... just me - 200 Coyotes (dogs not smugglers) and a bunch of drillers and rough necks that really just needed a...

Good morning from South Texas where for some absurd reason it will be 90 degrees again today and windy .... Hard to feel like Christmas when its 90+ -- but now I know how the Aussies feel ... its I need to find a manufacturer of a device or platform or capability that will allow me to stack...

Where can I find PV mounts that will connect to a ZEE purlin??? I have looked everywhere... Go to the 12:35 mark on the YouTube video below where you can see the mount at the back of the panel that is basically just resting on the ZEE ... Thats what I am looking for ... Thx .. I have...

Looking for some advice. And this literally borders small scale INDUSTRIAL size requirements ... so trying to minimize equipment BUT - The "Green" folks in LA has decided that us in Texas need to improve our Carbon Footprint and go more GREEN while sitting around at night and hugging a tree...

SO apparently the OSHA guy that came for a visit did not read the sign that said "DON'T LOOK IN HERE-IT WILL KILL YOU" and looked in our battery shack anyway ... Apparently he did not like our chargers that we put together that would charge the battery from a generator in about 10 minutes if...

I sort of asked this question a few days ago and got a couple of good answers ... but thought I would re-word it and see if I get anything different ... So my company has donated (10) 445W solar panels and a battery to power a mobile aide station for one of the counties we work in. These were...

Which ALL-IN-ONE do you recommend that will handle 10 of the following panels. Also - it MUST be a 24VDC system ... They gave us ONE 580AH 24VDC battery to use with the 10 panels .. The spec for the panels are below. I have not worked very much with ALL-IN-ONES .. I prefer separating my stuff...

GROWATT 3000W Solar Inverter 24V Power Inverter Support Split Phase 80A MPPT 120V Corporate about to send (10) of these to test to replace some of the EPSOLAR and EPEVERS we have in the field Anything I need to know that's a showstopper?? Thx ....

So some of my batteries have decided to loose their TOPS it seems ... some of the batteries i got a while back from a supplier I no longer use, is starting to have the tops of the batteries pop off ... looks like they may have used some form of arc-welding or spot welding to zap the terminals in...

So corporate says that we need to paint some of the FRAMES of the solar panels that we are using from Brown to Black ... (long story - crazy sh1t) ... anyway -- I have 10 solar panels that have brown paint on them - came from the factory that colour .. and I need to paint the FRAMES BLACK ...

So today is the birthday of People's Republic of China ... its 72nd birthday. The important thing to know though is that 99.999% of businesses will be down for their one (1) week holiday from 1st--7th, Oct. .. Oct., 8th most will be back in office .... I just say all of this because I know...