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Battery-free solar desalination system produces up to 5,000 liters of water per day
(alpha.leofinance.io)
this post was submitted on 03 Jun 2025
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Why battery free?
Batteries are cheap and great.
Oh its refried MIT garbage. Ok.
Tell me more about how you don’t understand technology or politics.
I understand both, excellently.
Could you explain why https://pubmed.ncbi.nlm.nih.gov/30723834/ is wrong in saying batteries are a significant barrier to deploying the solar-powered, then?
2019 article about battery technology; meanwhile, we're literally living in a revolution driven entirely by the battery technology (and pricing) that the article says shouldn't have happened: quite simply, they got it wrong.
https://ourworldindata.org/grapher/average-battery-cell-price
The price decrease and performance increase in battery technology has made them disproportionately more valuable than we expected them to be.
Go find a 2025 article if you want to support your previous point.
The fact is batteries got better and cheaper, both, faster than we expected them to. Solar is already more than efficient to overwhelm our storage capabilities. Its a better investment to design and build with batteries, almost always. The additional complexity at this point is minimal.
If the technology is so great, why not just slap in some batteries and have it run 24/7? Batteries are so cheap there is no reason not to.
They are not that cheap. I don't know what age you think this is, but batteries and replacement is a huge investment. It is the main reason people sell their cars because the cost is so prohibitive.
Your statement about understanding technology is bull.
The battery price revolution started way before 2019. There's nothing unprecedented about today's battery prices from the PoV of 2019. In fact, your own data says that in fact the price decrease has been slowing down: Besides the visible fast decrease between 2014 and 2017, prices-per-kWh were about $128 in 2018, $120 in 2019, $110 in 2020, $99 in 2021, and then pandemic inflation spiked it and three years later it only managed to decrease to $78 in 2024. No, I don't think battery prices are falling faster than we expect them to.
And here's an article from 2023: https://www.sciencedirect.com/science/article/pii/S0301479724010430