What was your worse DIY solar mistake ever?

[Bluedog225]

Dang it. That's it. Class Ts as bus bars.

I am putting this together. It sits on top of the battery inside a metal locker. No way for it to slide off side to side. Close as I could get to failsafe.


.

 

[Daddy Tanuki]

https://www.amazon.com/KNIPEX-98-00-10-Insulated/dp/B005EXP8AA/

View attachment 212421

made by knipex i am sure that costs a pretty penny. think I will just plasti dip mine and save the cost

 

[wiseacre]

What was your worse DIY solar mistake ever?​

Thinking I was done

 

[Aridom82]

I am putting this together. It sits on top of the battery inside a metal locker. No way for it to slide off side to side. Close as I could bet to failsafe.

Yep, you can chop some salami on it too while doing the wiring

 

[OM617YOTA]

In seriousness though if one was to build a power house in the backyard to avoid risk of catastrophic fire, I'm thinking connect to the house via a 240/50A inlet and transfer switch by the grid meter, like if I was hooking up a portable generator. Then the only potential UL code requirement in the house would be the transfer switch/method. Could even do an interlock on the main panel. My big loads are all propane except central AC and that's only 2 tons. But then for the grid input to the inverters...another 240/50A in the other direction, from house to powerhouse.

If the powerhouse was in a trailer....nothing for code enforcement to get their panties in a twist about

This is exactly the route I went, for exactly those reasons.

 

[PotusGobbleBottom]

I managed to short a jk bms in my first attempt. It was like lighting fireworks inside the house, the transistors exploding like firecrackers.
View attachment 212401

Do you mean connecting input and output of bms as the short or connecting v+ to one of the sides?

 

[ruralsolar]

Held on by the cable?

Yup! Thankfully no damage and everything still works as expected and at capacity.

 

[featherlite]

Your not supposed to have 2 bus bars connecting all the terminals between only 2 cells

I learned that exact same lesson about two minutes after I opened my first box of 280Ah cells. Providentially, the end of the bus bar never made full contact with the second terminal. The spark left only a very tiny divot off to the side of the contact surface.

 

[OffGridForGood]

Yep, you can chop some salami on it too while doing the wiring

SOPPRESSATA is ready!
(and turned out very nice this year, good dry January).

 

[42OhmsPA]

SOPPRESSATA is ready!
(and turned out very nice this year, good dry January).

I love soupie from the coal region, recipes generations old.