Solarpunk technology

I've always been fascinated by these small computers. GPD makes these kinds of devices too. Ordered one once but I never got it. Been thinking of building one myself though I'm worried it would be too small to enjoyable use. I would definitely write on it, that I am sure of.

a cool video i think is tagnentially related to solarpunk meows!

robots get workers rights too for betterment of all!!

Kind of curious what tech people own, everything from small to big tech. Assuming solarpanels are a given for a lot of peeps here, or maybe will be in the future. But what other tech do you own that you're happy with?

This is an industrial designed exercise bike from Lithuania that can store 2KWh of electricity generated by your own exercise.

It's so rare to actually see a new battery tech exit the lab and enter production. Always seems like there's 10,000 new up and coming breakthroughs in battery technology, but none ever leave the workbench.

While Na-ion batteries don't have the energy density of Li-ion, they make up for it with many other factors such as more abundant source materials, increased safety, higher charge/discharge currents, and increased number of charge cycles.

Slashdot summary:

Not only is sodium somewhere between 500 to 1,000 times more abundant than lithium on the planet we call Earth, sourcing it doesn't necessitate the same type of earth-scarring extraction. Even moving beyond the sodium vs lithium surname comparison, Natron says its sodium-ion batteries are made entirely from abundantly available commodity materials that also include aluminum, iron and manganese. Furthermore, the materials for Natron's sodium-ion chemistry can be procured through a reliable US-based domestic supply chain free from geopolitical disruption. The same cannot be said for common lithium-ion materials like cobalt and nickel.

Sodium-ion tech has received heightened interest in recent years as a more reliable, potentially cheaper energy storage medium. While its energy density lags behind lithium-ion, advantages such as faster cycling, longer lifespan and safer, non-flammable end use have made sodium-ion an attractive alternative, especially for stationary uses like data center and EV charger backup storage. [...] Natron says its batteries charge and discharge at rates 10 times faster than lithium-ion, a level of immediate charge/discharge capability that makes the batteries a prime contender for the ups and downs of backup power storage. Also helping in that use case is an estimated lifespan of 50,000 cycles.

I found these kind of cool as an idea, as they can be added rather easily to existing cities and provide some greenery without taking up space, while providing shade:

https://www.singulargreen.com/en/green-shades-valladolid/

A good overview and link collection around small scale hydro power technologies

I was watchin the last episode of ''earthsounds'' (docuseries that you can find on torrent) and they said to have used one of this with a microphone mounted under it to record better sounds from whales (because they travel a looooooot and not always on the same routes).

Autonomous robot solarpowered to catch better ocean data, pretty solarpunk to me :3

p.s. the series is nice even tho first 4 episodes have much more cool sounds; it's also interesting to see how hard it is to capture the sounds at the end of every episode

p.p.s. ye, it's not open source, by a company owned by boeing and probably also used for militar purposes so it's not perfectly as we would like it to be

💩 tech! On a serious note, this was in my random recommends and I clicked it and now I know about something I had no idea even existed. If this technology can come to fruition, it'll be great for the world.

This is quite exciting in that it removes plastic waste. I see no reason why different companies can't make different shape ones to maintain their lock-in. I expect a knock-off market to pop-up, but that exists with plastic pods too. It's a step in the right direction at least.

A wild Anker enters the home battery market.