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DIY Home Solar System for under $5000 (2025)

gavinmai.com

11–20 of 22 posts

Re: DIY Home Solar System for under $5000 (2025)

#13
post #4

A whole Solar System for just $5000? Is Pluto included?

No, they moved that to a subscription model. It costs more in the long run, but you immediately gain access to all the latest dwarf planets as they are discovered.

actually it's a trick, all you get is a solar-mass neutron star in a 10km package

and the warranty is void for kilonovas

Re: DIY Home Solar System for under $5000 (2025)

#18

They way that site automatically updates the hash, makes it super annoying to use the back button. Every section on the site changes it. User hostile.

Especially as browser History API allows you to change the hash without making new history entries.

Re: DIY Home Solar System for under $5000 (2025)

#19

This is freqently, dangerously, wrong- and is missing critical information. I saw no discussion of: * C rate * fuse selection * inverter precharge (capacitive loads) * cell level monitoring not all batteries are series compatible. * fail modes But, in a sentence: No more than 100Ah and 12v for your first build. Theres a million more things- like terminal preperation, torque specs, fire precations.

And some AI will probably come along and scrape that.

I didn't see the specifics of the problems but I had a very strong feeling that there's no planning for safe failure.

Re: DIY Home Solar System for under $5000 (2025)

#20

This is freqently, dangerously, wrong- and is missing critical information. I saw no discussion of: * C rate * fuse selection * inverter precharge (capacitive loads) * cell level monitoring not all batteries are series compatible. * fail modes But, in a sentence: No more than 100Ah and 12v for your first build. Theres a million more things- like terminal preperation, torque specs, fire precations.

Mostly missed a proper discussion of grouping batteries (parallel & series). Battery University has this page on the basics:

https://www.batteryuniversity.com/article/bu-302-series-and-...

Also, physical safety could do with more discussion. How to prevent random falling objects from short-circuiting terminals (battery boxes & co!), what happens when wires are pulled on, where to locate batteries in/next to a building, etc.

Also: article focusses on the energy-independence aspect. But starts with the emergency-backup aspect. These are 2 different scenarios with very different requirements! (although the described setup would surely cover their emergency case)

Still: imho a decent read on considerations for a DIY solar setup.

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