upnorthandpersonal's latest activity

The 1MWh container made with LFP cells my lab just bought, with an ability to provide 200kW power output, tells me otherwise.

So simply put 8 packs (16 cells each, even say 15kWh each) in parallel. That's 4000A of current, and 120kWh of storage. Energy and...

Of which you can use 50%, so 35kWh. That same 35kWh LFP costs me 2800 Euro in cells now.

Yeah, or even lower (71 Euro for Envision cells). Shipping from The Netherland to Finland is a few hundred Euro.

I'm at 63 degrees north in Finland with 100kWh of LFP powering my off-grid house. You put them in an insulated box with a small 7W...

Why lead acid? You can get LFP even here in Europe for 80Euro/kWh cell price. And you wouldn't have to worry about 50% discharge etc.

You won't get maximum power transfer from the panel to the motor by hooking them up directly. You likely need to do some matching, i.e...

Cannibalism?!?! I bet that one had antlers just few minutes ago...

Like I said, second winter here now with snow, as @shadowmaker points out and temperatures below freezing. Perfect for a stew made in...

Still snowing...

What is the Voc on those panels?

I wasn't talking about cells getting imbalanced at the end of the charge cycle. I was talking about newly bought cells, to be put in a...

Definitely what I would do. You can get 280Ah cells from NKON in The Netherlands for under 80 Euro. This saves the hassle we have right...

I use it similarly: to know if I can dump battery into the buffer with the heat pump or not to maximize energy use. Especially in spring...

I use Solcast and have it integrated in Home Assistant. Provides week ahead and hourly forecasts. Can see how it performs over time...

The main reason why is because active balancing BMS are common now. You can just throw the cells together have the BMS balance the cells...

From a European perspective: what's aluminium wire? On a serious note, it's used on power distribution, but I've never seen any...

Closing this thread before it goes out of control.

So, maybe a dumb question... I don't really understand.... I'm in a cold climate, but... Why is one guy wearing a hat indoors while the...

Another piece arrived. Fits the back of the flatpack nicely. I would love to fab a nice enclosure for it, but I have no skills or tools...