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Same here with AWG. Sure, let's indicate bigger conductors with smaller numbers. Oh no, we reached 0, let's go 00 and 000 and 0000. Yeah, makes sense 👌

We're not usually editing posts, but for the safety of the poster I've removed email and home addresses from the initial post and all replies.

Almost like there is a world wide inflation going on or something... with high interest rates as a result, and people not buying stuff (as intended) to lower consumption. And as a side effect, prices drop due to less demand or something. That said, please someone find me a 3000VA inverter that...

So after running this system for a little over a year now, I thought it would be a good idea to give a more in-depth status report. Let's go over all the components of the system. - Solar panels I am extremely happy to have gone with these large 500W ones. Not only do they perform as they are...

... than to go into discussion with SFK on Andy's YT comment section. For context, the issue is that the JK (new one) resets its values after x amount of time un-powered. This is a bug, obviously, and the reset values of 4.2V per cell are very bad for LFP. So SFK commented under the video...

Something can always go wrong, especially with high currents. Contacts can fuse, FETs may fail, etc. Personally, I trust a class T fuse much more in these situations compared to a breaker or the BMS ability to shut it all off.

I think most here on the forum know I have been hammering on the use of Class T fuses since forever (and at times received push-back). I also talked to Victron (and other) reps at several occasions about using class T fuses (or at least similar, like BS88 etc), and did the same with BMS...

And keep in mind that mine is a log house, with insulation mostly in the roof (like yours) and the floor, plus triple glazing with Argon. I have huge windows, and of course, log is just that - a thick piece of wood. Being surrounded by forest means I have ample fuel to keep me warm in winter. In...

At least it will be in about 20 minutes where I am. Wishing you all the best for 2020!

One of the reasons I like the one BMS per pack is that I can put a failsafe in the BMS: if my max power draw is 6kW (the inverter limit), and I have 7 banks in parallel, that means I can put the BMS limit at 20A discharge per pack or so. Anything over that and the pack gets disconnected. The...

Don't. Part of DIY is to learn to make better systems. Can't learn without mistakes, and sometimes even catastrophic ones. You know the saying in engineering: 'Every safety rule and regulation is written in blood'. In this field, some of the rules have yet to be written, which is why it's...

So... I've just bought a pallet of 36 x 410W Astronergy panels. At 0.275 Euro/Watt delivered it was too good not to. My plan is to split the batch with family, and expand my system in anticipation of an EV. Can't wait :)

I've had numerous requests over the past year or two asking for more details regarding my set-up, how I built my place, what the requirements are for off-grid living in a cold climate, building materials, etc. Several people asked me to start a YT channel... I don't really have the time for...

Trust me, I know what I'm doing :)

kWh - ftfy ;)

In case anyone is interested, I wrote down the goals and results in a longer form on my blog. The first part details the requirements, power audit, goals and some history. The second part deals with the actual components, costs, reasons...

It seems that cell prices are starting to really drop - for those of us in Europe: https://www.nkon.nl/rechargeable/lifepo4/prismatisch/envision-ess-4lh3l7-280ah-lifepo4-3-2v-b-grade.html Under 70 Euro per cell if you buy 16. Granted, they're not in stock right now, but I'm hoping this is a...

Time to do a another calculation again. (previous posts here, here and here) - but this time, I will go cheap (but with cells available in Europe - I'll do an international Alibaba version at some point). Disclaimer, as usual: I mention vendors below and use them as an example and as reference...

Nonsense. Let me try to debunk some of those points. The majority of the energy from the sun is in the visible spectrum and solar panels are tuned to this. Here is a graphic: As you can see, there is very little energy in the UV (and IR) range and solar cells are tuned for this. There is a...

An Eddy is something that is also used in fluid dynamics, but has a specific meaning there too - the swirling of a fluid and the reverse current created when the fluid is in a turbulent flow regime. Different field, same term - no problem. The main problem is calling something an "Eddy current"...

Solar panels also finally arrived:

My wood splitter and chain saw. Fully electric, no fuel to deal with, processing all my wood for winter during times I have excess solar in spring/summer/autumn.

Temperature is the real issue, and kills LiFePO4 faster than anything else. You can be at 100% SoC and 0C and you will have far, far less impact than being at 50% SoC at 30C for the same amount of time. That's why I mention that SoC isn't a huge deal compared to temperature. Some datapoints from...

I would like to clarify one thing: I am not saying that Ray or Docan is misleading anyone on purpose. I'm a happy customer of Docan myself. The big issue with raw cells at the moment is the terminology. "Grade A" doesn't mean anything. Docan uses it, Luyuan uses it, and everyone else uses it...

Already installed. So are several other systems. It's a balancing act... You wouldn't believe how many are already stopped before you notice. It's one of the things a forum with close to 100k users just has to deal with, and I think we're doing ok for the moment. There are always a few that get...

I'm moving this thread the the 'up in smoke' forum, now that we have the reason it went wrong. It can hopefully help others as well...

More pictures: Got around to putting some gravel in place. Still a bit more to go: L-brackets to hold the panels to the beams. The wiring of the panels sill be combined in the center. Also, more L-brackets. The bottom wooden 'beam' acts as support when placing the panels. In addition it...

@all, It seems quite some people start getting frustrated with the amount of info hidden and spread out across multiple threads. Threads on interesting topics seem to grow very long, information is repeated, some of it lost in the noise. Would it be possible to integrate a wiki in this site so...

My god people... don't make me move this thread to chit-chat...