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Cake day: July 1st, 2023

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  • Batteries are not cheap, especially on industrial scale. And most batteries are not ecologically friendly. It makes far more sense to put all the power solar panels produce during the day to immediate use for maximum efficiency, there is no form of battery that exists that doesn’t have some kind of efficiency loss.z

    Putting a battery on this is like building a water tower in your front lawn that only feeds your sprinkler, and you’re only filling it from a hose. You don’t really get any benefit out of it and it’s just easier to run the hose right to the sprinkler anyways.


  • It’s just a lot of salt. Seawater (on average) is 3.5% salt. So for 1kg of water (aka 1 liter) you get 35 grams of salt. For 5 thousand liters, thats 175kg of salt. While we do use salt for industrial purposes, that salt is usually treated and chemically processed for sanitary reasons. Given the average person uses 310 liters of water a day (drinking, cooking, cleaning, ect…) 5,000 liters gets you slightly more water than 16 people are going to consume in a day. And 175kg of salt is way more than 16 people are going to use in a day. Now figure this system runs all year round, and we have 63,000kg of salt. Just so 16 people could drink desalinated sea water all year.

    There are a number of theories put forth in recent years how best to desalinate sea water for drinking water and disposing of that salt, most of them involve dumping it in the desert, burying it in old mines, or possibly deep sea operations where salt concentrations are already too high for most life to exist, so adding salt to those regions won’t have a ecological impact and it’s possible for currents to spread that excess salt over a wider area.

    Every one of these options has downsides, but we do need water to live and oceans are a vast source of water we aren’t really tapping so you can see the desire to utilize them when majority of the global population lives within a hundred km or so of a coast line.






  • Baseload means the consistent day to day requirements a grid always has while up, aka people running their lights, tvs and appliances at regular times throughout the day.

    Flex loads are unusual peaks on the grid such as unexpectedly hot days where people run air conditioners or electric heat in the winter time. These are the points where things like wind power is invaluable to the grid.

    The idea that Nuclear can’t flex though is absurd, it’s not as fast as wind, but raising or lowering control rods takes seconds to minutes depending on reactor type, not hours like people seem to think. It just makes more sense to run them at schedule outputs because you need to shut them down entirely to refuel them. But if a nuclear plant was built up enough to handle capacity of a given region, it could realistically move between 50% load and 80% load and back in under ten minutes.

    Ecologically, Nuclear is by the far safest route, having the among lowest carbon outputs of all power production AND using less land per kw produced. The only thing that even gets close is rooftop solar, and even if you covered every external surface of every building in a city with solar you’d still not meet base loads.

    The price point of nuclear is a two part problem, both of which stem from propaganda leveraged against nuclear. We don’t have economies of scale because NIMBY and fear mongering how “dangerous” nuclear is (despite being the safest form of power in human history) preventing new constructions, combined with the second front of overzealous and unrealistic safety standards forced upon the nuclear industry that make it difficult for them to be profitable, it’s like requiring people to wear full body kevlar pads while driving or biking. Keeps them safe, maybe, but is that level of protection required? Not even remotely. No other form of power production could survive if strangled the same way nuclear has been for the last 80 years, which speaks volumes to how effective it is where even being kneecapped and held back at every turn it still persists to this day. Because it’s that damn effective and energy dense.

    Edit: It goes without saying the best possible future we can have is wind and nuclear powered with solar being added where it can be done efficiently, such as rooftop or land which has no other use including ecological reclamation. Wind is better in rural setting such as agriculture, where nuclear is better for denser populations like cities and industrial centers. Solar is best used as rooftop or addition to existing structures where it can generate power without inhibiting other functions. (You can’t put solar on a green house, for example.)



  • Rakonat@lemmy.worldtoSelfhosted@lemmy.worldLiquid Trees
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    2 months ago

    The comment you replying to was trying to not so subtly point out this is a business plot and little else. Nobody is going to pay a subscription fee to have a tree in front of their business, but they might cough up money for a third party to maintain a tank of algae out front if it was sold right






  • There is no reason it needs an always on connection for this. Even if there was a camera in the bowl taking pictures of poo (which raises so many privacy questions), the device could easily save hundreds of HD+ quality picture (assuming a toilet camera had that resolution) and send them next time connection is secure.

    Always online functionality only makes sense when the function itself is an online task such as a video call or looking up information not saved locally.

    Having an always online connection for a toilet suggest it’s gathering much more information passively from your home, using voice activated as a cover to always be listening and thus relaying what it records to server/data center to be filtered through for marketable or exploitable data.