• 1 Post
  • 29 Comments
Joined 2 months ago
cake
Cake day: June 16th, 2026

help-circle









  • Energy storage =/= batteries

    I’m American, I dont know shit about geography, but I think Germany is central to northern Europe.

    Germany’s peak solar time is the summer, and their peak wind time is winter. Fascinating. Do you think the people in charge of the grid know this? Maybe this could be leveraged to reduce the energy storage needs for solar power during the winter???

    As someone who closely follows the energy storage market, you should know that lithium-ion battery production capacity is expected to reach 7TWh/year by 2030, from 2022’s 2TWh/year. Why? Demand, from all the fucking electric vehicles because we’re going to run out of fossil fuels soon. Not technological advances.

    Similarly, iron air batteries were tested by Westinghouse in the 70s, and are currently being brought to market. As far as I can tell, there has been little improvements to the technology to make it commercially viable, other than demand. You know, from all the fucking data centers going in.

    Hell, let’s go back to Germany. They have double the wind capacity as they do solar? Why? Demand. Because Germany focused on wind as being the premier renewable energy, not solar. It wasn’t until recently that they created programs to increase demand of solar.

    The grid is an infrastructure project. As such, we don’t need to rely on batteries. We can use infrastructure projects, such as reservoirs, for energy storage. And in the US, we’ve been using this method since 1930. I know what youre thinking, “In northern Europe we can’t do that!” But alas, Switzerland did it in 1909. And pumped storage hydropower achieves 70-80% efficiency, which is pretty fucking good. And let’s be real, if your grid isn’t diversified enough where that’s a problem, then that’s a problem with your grid and your incompetent policy makers, not the tech. Or there’s an issue with electric demand, which is a failure of your politicians not keeping the Pedophile Class in line.

    The reason energy storage for the grid is a problem now is because we didn’t invest in production 30 years ago. Not because the research was behind. It’s because politicians and the pedophile class failed us.

    You are failing the future with the bullshit that you are spouting. Just a parrot of the pedophile class.

    Research, knowledge, and tech is not restricting energy storage.

    Politicians and the pedophile elite are.


  • I’m a firm believer in nuclear, but I think that’s a garbage argument against renewable since we have batteries, and other means of energy storage like reservoirs. And now China is lifting a building and dropping it for power. The US is introducing batteries that last 24 hours for data center use.

    Honestly, the energy storage sector is interesting to watch right now. There are seemingly endlessly researched designs for energy storage that have never made it to market. But now all of a sudden when data centers are realizing there’s not enough power on the grid, now they’re hitting market. To an extent, I get supply and demand. But the energy storage infrastructure hitting the market now isn’t from recent ground breaking innovations. This shit could have been implemented years ago.


  • New to Lemmy. Is this common from this instance?

    I’m no fan of the dem elite, but I’m still a believer that if we’re OK with incremental change and we’re active at all levels of government that we can motivate others to re-engage and take back what’s ours. That doesn’t mean that we wait till we can vote again and try better next time, it means we start creating the society we want to exist. Building up local politicians, and supporting the hell out of places that support us, hell, even supporting the hell out of places that aren’t supporting us right now but have the structure to support us.



  • I hope you’re right!

    I’m fairly new to Lemmy. So far, I love the moderation approach of much of Lemmy, “don’t be an assholr and especially dont be a Nazi”.

    I think people that come here are attracted to that, they’re also distrustful of social media. It’s a breath of fresh air to come here and be like, “phew, no Nazis” but then you get excited whem you find places like Hexbear, and you’re like, “ooooo openly leftist” and if you’re already distrustful of social media you might believe you’re brainwashed by capitalism and be willing to give the idea of authoritism communism a try because you’ve been lied to about SOME of the left.

    Tankie instances make you question reality. Unfortunately, normal instances don’t seem to correct tankies.

    Idk, I think of Watership Down a lot. Going from a shitty post capitalistic briar to a Utopia seeming authoritive briar the bunnies kinda find it OK. Until they don’t. Eventually, spoiler alert

    spoiler

    __the bunnies and a badass bird do make their perfect briar but it doesn’t really maintain without an educated populace. Something about birds are bunnies too

    Idk, I should reread that book. But I think its applicable here





  • No problem! This is actually more in the factory level of power than it is grid. 480v is the common voltage inside plants.

    But sometimes you’ll see different voltages (like 380 and 720). 600v and below is considered low voltage, but sometimes 720 is considered low too if its feeding machinery. Everything above that is usually considered high voltage. But the mysterious medium voltage exists too, I’d call that somewhere up to like 20kV.

    The 13kV in this picture is controlled by the plant. Some equipment uses 13kV, but usually plants just get 13kV (or other distribution voltages) and distribute it themselves. It’s really fun equipment to operate, big switches that you have to put your body into, and it makes big mechanical thuds and you’ll hear the electric make and break connections before the switch dies. It sounds like bzzzTHUDmmmmmmm



  • It sounds like you all don’t have task specific job safety plans?

    Depends where I’ve worked, what the task is, and how it’s structured.

    Data center? Yes, we had quadruple redundancy. Boring job.

    Auto plant? PMs, yes. Reactive? Sometimes, but if the line was down, we weren’t getting them printed out. The maintenance training program was incredible though, trained the troubleshooting process, even the dumbest could have written a work plan for any piece of equipment. All equipment had PPE requirements and showed LO locations and procedures. For reactionary work, work plan was quick chat with everyone involved, then follow SOP for de-energization, verify de-energization. The work was done up front similar to how you’ve described, but on every team. Nothing got missed.

    100 year old steel mill? PMs and only sometimes. Fun place to work, but that job was almost 100% fire fighting. Safety culture didn’t exist, especially when private equity took over lol. Early on had an untrained maintenance guy in street clothes operate a tripped breaker rated over 90 cal, he did not look to see what caused trip. That was when I was able to create a glove and training program lol. But that plant is the biggest reason why I’m against double labels. That plant hasn’t filled my position, and when I left, very little of it got delegated. The arc flash stickers are probably the last line of defense, I don’t think the drawings have been looked at since I left. That’s common in a lot of plants I visit at my new job, unfortunately.

    I’ve had arguments with arc flash study providers over it - unfortunately this isn’t necessarily a dumb new engineer - these are well seasoned vets. And double labels in a book, or on a drawing makes sense. But when you look at plants that do less than bare minimum safety, it highlights how important those stickers are. The well trained facilities with good safety culture will have drawings to get information that’s missed on the removed label (primary side incident energy). But safety culture can go to shit overnight, turnover, etc. Sticking with 1 label per enclosure ensures that the safety you provide on those stickers will outlast your program.

    Labeling requirements per NFPA70E are nominal voltage, arc flash boundary, incident energy or PPE category*, and minimum PPE requirements. I believe that minimum PPE requirements should be carried through entire enclosure, and adding that to the book would close the transformer debate. But I think its been unaddressed for too long that they should be adding a note specifically calling out transformers and DPs.

    *this requirement is why you’ll see a PPE level listed instead of a PPE category if the incident energy is precisely calculated


  • That makes sense. I shouldn’t have bashed IR windows. The plants that mandate rigid conduit everywhere, IR windows make sense and are good. For the limited budget plants, I think IR windows on transformers are low priority. But infinite budget, IR windows are great.

    IR windows have a lot more use cases outside of transformers where I think they are more important. And everything has to do with frequency and down time availability.

    The last job I worked was a steel mill. I was in charge of all electrical distribution from utility to disconnect prior to production equipment. Because of the metal dust, we needed to vacuum out distribution equipment yearly at a minimum and NFPA70B recommended some tasks yearly for us. I left when my 2 day outage on a 3 day weekend was canceled. I consolidated the outage plan to a single day, and they still wouldn’t let me have it. Once we got a year behind, I left. I’ve been gone a year, and they still haven’t done it.

    I had the main transformers on a 5 year EOL plan because of oil samples and age. The lead time was 18 months for each, and they needed 3, lol. The EOL plan was also neglected.

    I would’ve felt more comfy with IR windows lmao but I wasn’t going to stick around to be the scape goat when the plant goes down.