LilNaib
@LilNaib@slrpnk.net
- Submitted 9 months ago to energy@slrpnk.net | 14 comments
- Submitted 9 months ago to energy@slrpnk.net | 5 comments
- Submitted 10 months ago to energy@slrpnk.net | 0 comments
- Submitted 10 months ago to energy@slrpnk.net | 11 comments
- Comment on what do y'all actually host? 10 months ago:
DNS, web, mail, WireGuard, etc. I wrote the webserver in about 700 lines of Go and the other software is by other people. Currently I’m rewriting everything in Rust and will write an authoritative DNS server in Rust. Eventually I want all my services to run on my own software (except for WireGuard, which is best in-kernel).
My first professional mailserver was around 1996, with 400 users, up to over 3000 users by 2001. It was awesome then but now mail is the last thing I’d recommend anyone self-host. The ecosystem has been deteriorating for decades at this point.
- Comment on Half of Americans can’t install solar panels. Community solar is how they can plug into the sun. 1 year ago:
Here’s a video showing Brad Lancaster’s permaculture house in Tucson, AZ:
I linked directly to a spot showing him getting good water pressure with only 2.5 feet (less than a meter) of head.
In other parts of the video he talks about filtration. You can watch the video yourself, it’s awesome. I hope it inspires you.
It sounds like the place you lived is not a great example of rainwater harvesting and greywater, like they didn’t really know what they were doing and cobbled together something mediocre. Do you think that water issues in Flint, Michigan are an indictment against the conventional water system? Or in India? I don’t blame you for having a bad personal experience with something and concluding that that thing is bad. That’s just how it goes. But take a step back and realize that the questions you have are solved problems. It’s just that most people are unaware and many are resistant to change.
The fact that the conventional water system is starting to run out of water in some desert areas, and that the problem is growing, is proof in itself that this system is unsustainable. So we need less pushback and more engaged interest.
Quoting Wikipedia from the Central Arizona Project article:
“The 456 billion gallons (1.4 million acre feet) of water is lifted by up to 2,900 feet by 14 pumps using 2.5 million MWh of electricity each year, making CAP the largest power user in Arizona.”
That is not simple at all.
“The canal loses approximately 16,000 acre-feet (5.2 billion gallons) of water each year to evaporation, a figure that will only increase as temperatures rise.”
- Comment on The momentum of the solar energy transition 1 year ago:
I think you’re best suited to answer your own question. Since you’re the one who wants to build nuclear, why don’t you do it?
If the answer is expertise, no problem, just hire people.
If the answer is money, just band together with others. Online discussions always have tons of people who want the same thing you do – you can pool your resources.
- Comment on Half of Americans can’t install solar panels. Community solar is how they can plug into the sun. 1 year ago:
You can ask him, or read his book. He’s spent decades working on water.
Have you installed and used rainwater harvesting and greywater systems? It sounds like you haven’t. They’re remarkably simple.
- Comment on Half of Americans can’t install solar panels. Community solar is how they can plug into the sun. 1 year ago:
Doable but not necessarily with a lower impact.
According to Rainwater Harvesting for Drylands and Beyond (volume 1, 3rd edition) by Brad Lancaster, page 249, an example household doing water harvesting and reuse, saves between 80kWh and 97kWh per month and between 174 pounds (78.8kg) and 211 pounds (95.5kg) of CO2 emissions. That’s a huge win for rainwater harvesting and greywater.
Rooftop solar and wind also save a ton of water since traditional generation methods of burning fossil fuels need lots of water.
And according to the same book, page 240, here are some kWh/gallon ranges of various water sources:
- on-site rainwater: 0.0000 to 0.0007 kWh/gal
- on-site greywater: 0.0000 to 0.0002 kWh/gal
- groundwater: 0.0006 to 0.0020 kWh/gal
- avg utility water: 0.0011 to 0.0041 kWh/gal
- brackish groundwater: 0.0032 to 0.0379 kWh/gal
- Comment on Half of Americans can’t install solar panels. Community solar is how they can plug into the sun. 1 year ago:
I agree but just want to add that at least some people in apartments and condos can still produce and use solar-generated electricity. Here’s a cool example:
arstechnica.com/…/i-disconnected-from-the-electri…
Although I have rooftop solar producing around 200% of our usage annually, I was inspired by this story and have been increasingly using our offgrid LFP (LiFePO4 / lithium iron phosphate) backup batteries with solar panels to power certain things.
I think people in apartments would need rooftop access (ideally), equator-facing windows or a balcony, at the very least, for this to make ecological sense as there’s a carbon cost to manufacturing batteries and solar panels. But it’s doable and some people are doing it!
Here’s another:
- Comment on Half of Americans can’t install solar panels. Community solar is how they can plug into the sun. 1 year ago:
Tucson, Arizona in the Sonoran Desert receives more rainfall annually than the amount sourced municipally. In other words, even in a desert city like Tucson, there’s no need to import water. We are wasteful not by nature but by habit, and that can be changed. Rainwater harvesting with thoughtful usage, mulching and locally-appropriate plants and greywater provide all the water necessary except in the most extreme environments such as Death Valley. But even in Death Valley a single family home could provide all its own water through the above if they were also doing solar distillation and reuse.
With proper management and cultural development, cities can provide all their own water and energy and a substantial portion of food.