Storing Solar Power on my ROOF!!!

Quint BUILDs · 5M views · 2021-09-28 · 17:08

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Overview

Quint BUILDs tests a rooftop water storage setup in which solar power pumps water up to the roof and a turbine generates power later. He works through the numbers to show how much energy it actually stores.

On Hacker News

HN commenters cite it as an entertaining reality check on home gravity storage, showing the yield is tiny compared to household needs.

Recommended by 2 HN people across 1 months · HN mentions 2022–2025

Topics

Renewables, batteries & storage 3D printing, CNC & maker projects

What people said

jammaloo · 2022-10 · Recommendation
There is a great youtube channel that tests out different energy storage and harvesting setups, a lot of them focused around water. This is one where they use solar to pump water to the roof, and then use the potential energy overnight: [VIDEO]
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tharkun__ · 2022-10 · Recommendation
Here's some "slow math" in video form ;) [VIDEO] I find him entertaining. Put a 55 gallon drum on his roof, pumping water up via solar and running lights at night. Closed loop system. He also "does the math" and mentions exactly what you are saying in entertaining format. Just not worth it if you're not doing it on a massive scale, preferably way out of sight and danger.
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adrco · 2025-08 · Reference
Relevant video on a pumping water on the roof + turbine system : [VIDEO] It's quite far from powering your whole house tho !
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Sources

Video by Quint BUILDs, played through YouTube.

HN Library · Source license

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