#when not to use rechargeable batteries
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learnyogafreeforever · 10 months ago
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0vergrowngraveyard · 26 days ago
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villain au redesigns!!
so far in my efforts to revamp this, they’ve gotten worse! these two need to be separated!
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licorishh · 8 months ago
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Hey as a super introverted but not shy person I'd just like to say the jokes about extroverts "adopting" introverts to "get them out of their shell" are actually completely unfunny and it just goes to show how little respect a lot of y'all have for the fact that we genuinely don't want excessive social interaction and that y'all are forcing us to do something that brings us extreme physical and mental discomfort because you perceive our introversion as a failing rather than as purely a difference in personality.
We don't need your "help" to socialize. We're not children. We're simply not interested in spending every waking second of our lives talking to people and being talked at in return.
#again i scream from the rooftops that there is a monumental chasm between being shy and actually being an introvert#a shy person is someone who's afraid of social interaction. an extrovert can be naturally shy.#a shy person can WANT lots of social interaction but simply have not learned to feel comfortable in social situations.#people who are just very introverted simply have little desire or capacity for excessive human interaction.#we're not “afraid” of it. we just don't enjoy it and it wears us out.#you don't need to swoop in and save us because we can't handle ourselves. we're perfectly fine thank you#extroverts are constantly demanding that we get out of our comfort zones but few of you are willing to make the alternative more comfortabl#if you're a very extroverted person please do not take it upon yourself to jokingly “adopt” introverts you meet.#it's not funny and it's not helpful. it's irritating that you perceive our quietness and low social battery as something that needs “fixing#we won't miraculously learn to love and be comfortable with excessive human interaction. that's not how we're wired and that's OKAY#i'm honestly getting so sick of the “the lonely introvert and the extrovert who adopted them” memes#i can guarantee you that if you are an extrovert who operates this way then your introvert “friend” is actually probably very uncomfortable#and just don't want to say anything because they think it would be rude to bring up the fact that they don't want what you want from them#this does NOT mean extroverts and introverts cannot be friends nor am i saying all extroverts are annoying or that they all do this#i'm simply saying that if you are very extroverted and you have a friend who's very introverted#then it's on you to be aware of your introvert friend's limited social battery and STOP pressuring them to just “put up with it”#don't spend every second with them constantly talking. be willing to spend some time just in the quiet.#be willing to let them bow out of something if they're exhausted and are low on social energy.#don't expect them to want to come to every meeting or party or get-together because it WILL drain them completely.#be willing to let them spend time alone when they need to to recharge.#letting an introvert cool off and recharge when they need to is ALWAYS going to make social situations less stressful for them.#PLEAAAAASE take their feelings into account and understand that they do NOT perceive social interactions the way you do.#most very introverted people do not find socialization relaxing or invigorating. they don't do it to unwind#they have to unwind AFTER lots of social interaction#that's about it. thank you and good night
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shirogane-oushirou · 27 days ago
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no promises anymoooooreeeee i'll appear online when i appear online 😭 every time i say "ooh i think life is almost done being overwhelming!" it. becomes even more overwhelming in the dumbest ways. all i can manage rn when i'm not stressing myself into a shut-down state is staring at the wall while listening to youtube essays + mindlessly crocheting.
i might queue up ppls art and fics w/o commentary in the tags... i want other ppl to see what all of my cool friends have made, but i genuinely can't think right now with this monstrous brain fog. i'm really sorry, just. yeah. maybe i'll think of some way to make it up later!!! once the dust has settled!!!! but until then i wuv u and miss u. smiles.
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[venting in tags including familial manipulation and ableism. i. didn't mean to write all of that, thiss was originally going to be a main blog post but. aaaaaAAAAAA!!!!!
also no need for replies or anything, i'd turn them off for just the one post if i could kjsndkn, i just needed to get things out and go eep jsjndsfdn ok bye bye bye bye!!!!]
#goddd my family finds it sooooooo funny that i can't do basic tasks! it's soooo funny that i can't even think of a horror movie to watch#on halloween bc i genuinely can't remember a single one right now. it's soooo funny that i can't take cardboard boxes or#old furniture out of my room without help bc i've physically and mentally and emotionally burnt out for Months.#and me not being able to move shit out after two (2) days makes me a hoarder somehow. and ofc hoarding is a moral failing#and my mom has to give me a stern talking-to about hoarding things... that were. again. in my room for 2 days....#[tbc it isnt a moral failing no matter the reason. life is hard and things happen and it can be hard to get rid of things for Reasons.]#nevermind them making constant snide remarks about me using ugly 'mismatched' desk / storage furniture. bc it was free / cheap? no income??#AND!!!!! i have a couple of new diagnoses. which doesn't change much day to day but it does make my family making fun of me#even more dumbfounding. like. this explains a lot of really scary unexplained symptoms that constantly leave me#housebound for weeks but uhhh haha hehe hoho??? so silly so funny that i'm barely conscious for multiple weeks???#and you can see that i'm getting worse but that makes it funnier??? hmm!!!#also nevermind that i've told them the exact reason why i've been like this (read: them) but that ALSO makes it funnier somehow.#but i also can't say shit bc they're doing something ~nice~ for me (out of convenience + after almost a decade of 'don't get comfortable'#and 'don't decorate this room bc it isn't yours' and 'you need to be ready to move out by x date'#only for the date to arrive and them to pull the 'i never said that. and if i did say it i didn't mean it like that.#and if i did mean it like that i don't anymore.' card. + any big renovations are things they wanted anyway. hmmmm!!#and how i have to do all of the phys labor alone bc if i ask for help i get made fun of!!! and yelled at that i'm doing things Wrong#(hint: i'm following instructions to the letter but. my family knows better than those silly things!! ^^ ))#jfc i sure did rant. uh. yeah. things. are really weird and uncomfy and i feel thankful that i finally can have my own things on display#outside of closets and bins again after a decade?? but i'm also waiting for the other shoe to drop / them to tell me i owe them in#some way??? bc that's how it works. 'i'm doing a nice thing you didn't even ask me for so now you have to do whatever i tell you to.'#meanwhile i can't even maladaptive daydream my way through it bc my brain is soup right now. can't remember basic things abt#my interests bc i've been on negative battery / spoons for a couple of months straight and it's only getting worse.#OKAY TLDR i'm not in a state to do anything until everything irl gets settled. and i'm trying So Hard to get it all over with but there's#only so much i can do in a day before i completely shut down. i didn't even get into the insurance stuff i've been fighting too ughhhh.#so if i show up on here in short spurts -- hi! bye! hi!! i wuv and care u!!! hope youre well mwah mwah!!!!!!! i'll post what i can and then#disappear when i need to recharge. it is what it is. i need to try to sleep now... uh if this post disappears when i wake up.... yeah......#📌 [ my posts. ]#💭 [ my thoughts. ]#vent -
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graveyarrdshift · 1 month ago
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bruh why is it so warm today
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bibleofficial · 5 months ago
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saw a starfish on the beach today & was absolutely ENAMOURED - literally 3 of us were just squatting over this tide pool watching him move
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#stream#omg i just remembered i was the last 1 to change / shower & i had just walked back from the cold ass shower thing to rinse off the salt &#punya came over & he was like ‘brother …’ & i was like what ? & he went 😏🫴#& i asked what do u want me to give u ?? ‘a cigarette u motherfucker’ ‘u know what i would love 1 TOO bitch but GUESS who smoked them ALL b#it WASNT ME !!!’ 😭😭😭😭 AKSJAKSKAKSKKSKSKAKSLSKSL#& NOW I DONT EVEN HAVE A VAPE BC OF THE FREAK BRIT THAT JUST WALKED OFF W IT#i’m still not upset abt it i’m more so just bewildered ? just shocked ? like i didn’t even care to try to get it back i was just like ok ?#i’m still shocked by it bc it’s just so#COMICAL ? LIKE ??? 😭😭😭😭 did neither of us speak english like 2 entirely different messages weren’t sent#LIKE ITS NOT A DISPOSABLE THIS IS A RECHARGABLE REFILLABLE VAPE#it was just 20£ & getting 2 disposables are also 20£ from the off license & i used literally like 80 ? 100ml ? in it ? so saved money#regardless but i did buy a pack of pods but 1 of the 3 that i used didn’t end up working & that was the third on it excluding the original#battery & those are 10£/pack so 30£ overall for what would equivalently be like idk probably around 10 of those 5k off license vapes which#would yea be 120quid so including the price of the vials themselves it’s 3-for-10£ used 5#so that’s 50£ bs 120£ even w the cost of a new device say + 30 that’s still only 3/4 of the price of what it would be using dispos which ar#cheaper than cigarettes REGARLESS#even the 30/120 that’s still u know literally a quarter of the cost it’s just a bigger upfront cost but it’s significantly cheaper long ter#STILL SAVING MONEY …. i say as if addiction isn’t inherently a waste of money but u see to that argument i budget it like food bc that’s ho#addiction works it’s just going to continue & ur going to include it in the budget as if it’s a PHYSICAL NECESSITY TO LIVE#to be fair sometimes it is lol like bro i couldn’t stop drinking w/o being in a hospital bc alcohol withdrawls can literally kill u#like my blood pressure was over 180 at 1 point when i was detoxing in hospital 😭😭😭😭😭#SCREAM#anyway#forget that#happy new year 2024.5 😍😍😍#my new year starts now fuck u the first half was just warm up#could i stop smoking if i wanted to ? yes ! will i ? absolutely fucking not !#IM ALLOWED THIS AS A TREAT#THAT I INHALE LIKE OXYGEN: CONSTANTLY
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bloodgutsandpussy · 1 year ago
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Accidentally bought a book light that has to be plugged in to charge instead of using batteries and it’s the worst thing that’s ever happened to me
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reblog-house · 1 month ago
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Hot take: being an extrovert or an introvert... isn't a thing. Not one or the other. They don't exist. A person will never be able to fit into that binary and it's simply a shield to not confront the reason WHY they consider themself to be one or the other. And that reason, obviously, is different for every person.
But no true extroverts or introverts exist, and it's stupid to narrow down the human experience to those vague binaries that "change presentation depending on who you're with". You're neither. Accept that.
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samderella · 2 months ago
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Living with my in-laws after evacuating from a hurricane be like
I appreciate you love and want to spend time with me, but if you don't let me hide in the guest bedroom and write nonsense for five uninterrupted hours, I will scream
#water is out at my place for at least a month minimum#out-laws happily invited us to live with them and they're like oh yay Sam is here#and I'm like if I was home and dealt with this much social time in a row I would turn my phone off and not talk to anyone for three weeks#but no you expect me to hang out with you for at least a couple hours every night#and are concerned if you haven't seen me yet in a day#every time I overhear them ask my partner if I'm okay when I'm just trying to recharge my social battery it goes back down#the autistic energy drain of being perceived#now that I'm living with people other than my partner again every action I do at home has to go through a filter#is this inconsiderate? too noisy? will get in the way? am I being rude by not interacting with my hosts to the degree they desire?#am I fully clothed when I go get a snack or get high???#I've lived by myself since late 2016 and moved in with my partner in 2018#for a reason! it takes so much mental energy to be considerate to the degree I wish to be ahhhhh#anyway I'm 11000 words into the flower shop au and 5000 into chp. 5 of APNJ#post date entirely unknown as I am an introvert living with lonely extroverted parents who miss their family constantly and love me#I could go stay with mine but that would be even worse soooooo#my hurricane experience could be 1000% worse so it feels wrong to complain too much#but unfortunately I may still be driven mad if I live here for over a month#vowed never to live in this state again RIP#using this tumblr to vent because again don't feel like I can complain too much#was extremely lucky on so many accounts#but I would really like to go write smut without being concerned I'll be summoned for game night or whatever#as an extreme oversimplification and dramatized example#I miss home :(#we officially got power back today but city sent out another alert saying still no water for no idea how long#wooooo#shoutout to anyone who bothered to read this I'm using the vent as a way to amp myself to get back to writing#I've had a very emotionally complicated week and a half and even when I do get time to write I don't do it because not in right mindset#I miss May when I cackled to myself while writing terrible smut#my stuff#vent
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coreytasticc · 5 months ago
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Pls rebog. I wanna know what to get my pet mad scientist to work on.
³ghost headphones: headphones that are invisible and weightless, but act like regular headphones that are summoned and dismissed at your discretion. Audio quality on par with Sony wh-ch720n.
⁴Minecraft camera: you can switch your perspective from first person, third person, and reversed third person. You can also take screencaps.
⁹toothbrush tongue: tongue that does the job of a toothbrush when you want it to. Generates its own toothpaste.
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reasonsforhope · 6 months ago
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Green energy is in its heyday. 
Renewable energy sources now account for 22% of the nation’s electricity, and solar has skyrocketed eight times over in the last decade. This spring in California, wind, water, and solar power energy sources exceeded expectations, accounting for an average of 61.5 percent of the state's electricity demand across 52 days. 
But green energy has a lithium problem. Lithium batteries control more than 90% of the global grid battery storage market. 
That’s not just cell phones, laptops, electric toothbrushes, and tools. Scooters, e-bikes, hybrids, and electric vehicles all rely on rechargeable lithium batteries to get going. 
Fortunately, this past week, Natron Energy launched its first-ever commercial-scale production of sodium-ion batteries in the U.S. 
“Sodium-ion batteries offer a unique alternative to lithium-ion, with higher power, faster recharge, longer lifecycle and a completely safe and stable chemistry,” said Colin Wessells — Natron Founder and Co-CEO — at the kick-off event in Michigan. 
The new sodium-ion batteries charge and discharge at rates 10 times faster than lithium-ion, with an estimated lifespan of 50,000 cycles.
Wessells said that using sodium as a primary mineral alternative eliminates industry-wide issues of worker negligence, geopolitical disruption, and the “questionable environmental impacts” inextricably linked to lithium mining. 
“The electrification of our economy is dependent on the development and production of new, innovative energy storage solutions,” Wessells said. 
Why are sodium batteries a better alternative to lithium?
The birth and death cycle of lithium is shadowed in environmental destruction. The process of extracting lithium pollutes the water, air, and soil, and when it’s eventually discarded, the flammable batteries are prone to bursting into flames and burning out in landfills. 
There’s also a human cost. Lithium-ion materials like cobalt and nickel are not only harder to source and procure, but their supply chains are also overwhelmingly attributed to hazardous working conditions and child labor law violations. 
Sodium, on the other hand, is estimated to be 1,000 times more abundant in the earth’s crust than lithium. 
“Unlike lithium, sodium can be produced from an abundant material: salt,” engineer Casey Crownhart wrote ​​in the MIT Technology Review. “Because the raw ingredients are cheap and widely available, there’s potential for sodium-ion batteries to be significantly less expensive than their lithium-ion counterparts if more companies start making more of them.”
What will these batteries be used for?
Right now, Natron has its focus set on AI models and data storage centers, which consume hefty amounts of energy. In 2023, the MIT Technology Review reported that one AI model can emit more than 626,00 pounds of carbon dioxide equivalent. 
“We expect our battery solutions will be used to power the explosive growth in data centers used for Artificial Intelligence,” said Wendell Brooks, co-CEO of Natron. 
“With the start of commercial-scale production here in Michigan, we are well-positioned to capitalize on the growing demand for efficient, safe, and reliable battery energy storage.”
The fast-charging energy alternative also has limitless potential on a consumer level, and Natron is eying telecommunications and EV fast-charging once it begins servicing AI data storage centers in June. 
On a larger scale, sodium-ion batteries could radically change the manufacturing and production sectors — from housing energy to lower electricity costs in warehouses, to charging backup stations and powering electric vehicles, trucks, forklifts, and so on. 
“I founded Natron because we saw climate change as the defining problem of our time,” Wessells said. “We believe batteries have a role to play.”
-via GoodGoodGood, May 3, 2024
--
Note: I wanted to make sure this was legit (scientifically and in general), and I'm happy to report that it really is! x, x, x, x
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foone · 8 months ago
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There exist another dimension called The Empty World. It's very much like ours, in fact it seems to have been identical up until a few weeks ago, but it always seems that way. If you go there today, it was identical in late february, and if you go there this october, it'll have been identical until september.
It's empty, as you might guess. There's no humans, and no animals bigger than a cockroach. The sky is grey, and it slowly rains ash. It's colder than our world by a bit, enough to require a jacket even in summer. The streets are empty, the cars parked neatly in their garages or in lots, but they're all empty and abandoned, their doors locked like they expect their owners to return any minute now.
The newspapers left on stands don't mention any oncoming disaster. We have no idea what the TV or internet would have said: the power is out. The power is very, very out. Not just the grid, but batteries are drained. The cars won't start, the emergency lights are out, and anything with solar panels seems to be getting less energy than you'd expect, even with the perpetually overcast sky.
It's a very silent world, like the calm after a snowstorm. Sounds don't seem to echo as much as they should, nor does sound seem to travel as far. The radio spectrum is empty except for static, there's no one transmitting on any frequency.
There's fewer fires than you'd expect. Even places you'd expect to soon catch fire without human intervention are still standing, undamaged. Campfires can be lit but with difficulty: something is keeping them from burning as they should. Even if you pour kerosene on a campfire it'll barely grow, it's like something sucked the energy out of everything.
All the locked buildings are still locked. Alarms don't sound if you break in (understandable, given the power situation), and of course no one comes to investigate. So The Empty World is your oyster: you can break in wherever you want (provided you can physically do it: some doors are pretty hard to pry open even with tools), take whatever you want, and bring it back here.
Everything resets when you leave. You always enter The Empty World like it's your first time there, like this just happened and you're late to the party... but the party keeps getting rescheduled. You can even take something multiple times if you want.
When you enter The Empty World you get there at the same relative position as you are on this world. If you're in New York, you show up in the empty New York. If you're in Topeka, you show up in empty Topeka. So you have to travel around this world to get to where you want, and you can't just appear in the middle of a bank vault... unless you break into the vault from this world. (So it's great if you work at a bank and want to steal from your employer without repercussions, but not so useful otherwise).
You don't just have to take things, you know. You can take computers and files and books and diaries. You will have to deal with recharging laptops and breaking through any security when you get back, but it's doable.
So, imagine you've just gotten access to The Empty World. What are you going to do with it? What will you take, and where will you go?
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starsenha · 1 month ago
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YAPPER / S.J
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Pairing ◊ fem!reader x bf!jake
Genre ◊ fluff, established relationship
Warnings ◊ mention of low social battery, jake overthinks a lot in this, introverted!reader x extroverted!jake
Word count ◊ 1k
Summary ◊ you and jake just started living together, and he had to get used to having an introvertes s/o.
a/n: this is so cute i'll die
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The apartment was quiet, a comfortable contrast to the usual hum of Jake’s chatter. You’d been living together for just a few weeks now, but it already felt like home. Jake's energy filled the space—warm, playful, constant—much like a puppy that couldn’t contain its excitement. His endless chatter was something you loved about him, the way he could talk for hours about anything, whether it was the latest indie band he discovered or his theories about the origins of the universe.
But today was different.
You sat at the kitchen table, your laptop in front of you, but your fingers hovered over the keys, unmoving. The day had drained you. You had been running on empty, your social battery flickering like a dying candle. It wasn’t anything that happened in particular. Just… people. The noise. The constant interactions. You craved silence in a way that felt almost physical, like you needed to wrap yourself in it to recharge.
Jake must have noticed.
He hadn’t been his usual self all day. His usual stream of conversation had trickled down to cautious comments, half-started stories that faded into silence when you didn’t respond the way you normally would. He gave you space, which was rare for him, but something you appreciated. You knew how much it took for him to quiet himself.
But as the hours passed, the air in the apartment grew heavier. You could feel it between you, like something unsaid, something tense. And you knew what it was. Jake was overthinking. You’d seen it before—he could mask it for a while, but eventually, it showed. The nervous fidgeting, the glances he thought you didn’t notice, the way he tapped his foot against the leg of the couch, an unconscious habit when he was deep in his thoughts.
You sighed, staring at your screen, knowing you should say something, anything, but the words felt stuck. You just needed a little more quiet. A little more time to recharge. But the silence was dragging on, and you knew Jake wouldn’t be able to take it much longer.
Eventually, as the sky outside began to darken and the city lights flickered on, you heard soft footsteps behind you. His approach was hesitant, unlike his usual bounding energy, and it made your chest tighten with guilt. You didn’t turn around, not right away, but you felt him hovering behind you.
“Hey, babe,” he said softly. His voice was gentle, tentative, as if he was afraid to disturb whatever fragile peace you had wrapped around yourself. “Can I, uh… Can I talk to you for a sec?”
You turned in your chair to look at him, and there he was—Jake, with his tousled brown hair that always seemed to be a little wild no matter how many times he ran his fingers through it, and those big, expressive eyes that were always so full of life. Except now, they looked… sad. His brows were knit together in concern, and there was this slight tremble in his bottom lip, like he was trying to keep it together.
“What’s up?” you asked, your voice coming out quieter than you intended.
“I just… I don’t know. Did I… did I do something wrong?” His voice wavered, and your heart clenched. “Like, I don’t know, you’ve been really quiet today, and I was thinking maybe I… I upset you somehow?” He took a step closer, his hand reaching out, hovering over your shoulder like he wasn’t sure if he should touch you. “If I did, I’m really sorry.”
You blinked, caught off guard. He was standing there with that look on his face—the one he always gave you when he thought he messed up, the one that made him look like a kicked puppy. His eyes were wide, his expression so heartbreakingly sincere.
“Jake,” you started, but he interrupted.
“No, seriously, if I said something or if I did something without thinking, I didn’t mean to. I’ve been trying to figure it out all day, but I can’t—” His voice cracked a little, and he looked away, biting his lip. “I just hate it when you’re upset, and I don’t know what I did.”
Your heart broke a little right then. He was always so in tune with your emotions, so careful with them. You reached out, gently grabbing his hand and pulling him closer. “Jake, you didn’t do anything wrong. I promise.”
He looked at you, his brows still furrowed, not entirely convinced. “Then… why? I mean, you’ve barely said anything all day. You’ve been… distant.”
You sighed, squeezing his hand. “It’s not you. It’s just… I’m drained. My social battery is completely dead, and I didn’t know how to say that without making you feel like I was upset or something. But it’s not you, okay? I just… needed some quiet.”
He blinked a few times, his expression softening, but there was still that little crease between his eyebrows. “Oh. Oh.” His shoulders relaxed a bit, and he looked down at your hands intertwined. “You could’ve told me that.”
“I know. I should have,” you said, guilt creeping in. “I didn’t mean to make you feel bad.”
He shook his head, finally smiling a little. “No, it’s okay. I just… you know how I get.” He laughed softly, though it was a little self-deprecating. “I overthink everything. I just didn’t want to make things worse by being my usual… talky self.”
You chuckled, giving his hand a squeeze. “I love your talky self. I really do. I just… today was a lot, you know?”
“I get it,” he said softly, his thumb brushing over your knuckles. “Next time, just… tell me. You don’t have to worry about me. If you need space, I can give you space. I’ll just… go babble to the plants or something.”
That made you laugh, and the tension in the room seemed to dissolve. “Babble to the plants, huh?”
“Yeah,” he grinned, a little more of his usual energy returning. “They don’t seem to mind. Plus, they grow better when I talk to them, so win-win.”
You smiled, feeling lighter than you had all day. “I’ll keep that in mind.”
Jake leaned in, pressing a soft kiss to your forehead. “Just promise me you’ll tell me next time, okay? I’d rather know you’re just tired than sit around thinking I did something terrible.”
“I promise,” you whispered, leaning into his touch.
He smiled, pulling you into a warm embrace, and in that moment, you were reminded of why you loved him so much—his warmth, his patience, his understanding. Even when you were at your most exhausted, he knew how to bring you back.
"Good," he said softly, holding you close. "I love you, you know that?"
"I know," you murmured, resting your head against his chest. "I love you too."
And just like that, everything felt right again.
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fadi123 · 2 years ago
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sand battery
What Is a ‘Sand Battery’ 2023?
A “sand battery” is a high temperature thermal energy storage that uses sand or sand-like materials as its storage medium. It stores energy in sand as heat. 
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Its main purpose is to work as a high-power and high-capacity reservoir for excess wind and solar energy. The energy is stored as heat, which can be used to heat homes, or to provide hot steam and high temperature process heat to industries that are often fossil-fuel dependent.
As the world shifts towards higher and higher renewables fraction in electricity production, the intermittent nature of these energy sources cause challenges to energy networks. The sand battery helps to ambitiously upscale renewables production by ensuring there’s always a way to benefit from clean energy, even if the surplus is massive.
The first commercial sand battery in the world is in a town called Kankaanpää, Western Finland. It is connected to a district heating network and heating residential and commercial buildings such as family homes and the municipal swimming pool. The district heating network is operated by an energy utility called Vatajankoski.
The term “sand battery” was introduced to grand audience by a BBC News story published the 5th of July 2022. The story was written by BBC News’ Environmental Correspondent Matt McGrath.
Read the story: BBC News: Climate change: 'Sand battery' could solve green energy's big problem
Watch the video: BBC News: How the world's first sand battery stores green power
UPDATE: We’ve been getting a lot of attention after our sand battery went viral. Due to a massive amount of requests and messages, our reply times can be very long. We appreciate your patience. Thank you! Please also note that we don’t have products for individual homes yet.
Frequently Asked Questions
What is the structure of your heat storage?
It is an insulated silo made of steel housing, filled with sand and heat transfer pipes. Additionally, equipment outside the storage is required, such as automation components, valves, a fan, and a heat exchanger or a steam generator.
How do you heat the sand?
With electricity from the grid or from local production, in both cases from fluctuating sources such as wind and solar. We charge it when clean and cheap electricity is available. The electrical energy is transferred to the heat storage using a closed loop air-pipe arrangement. Air is heated up using electrical resistors and circulated in the heat transfer piping.
How hot is the sand?
The maximum temperature in the Kankaanpää heat storage is about 600 degrees Celsius. However, the temperature may even be higher depending on customer needs. In practice, the maximum temperature of a sand-based heat storage is not limited by the properties of the storage medium, but by the heat resistance of the materials used in the construction and control of the storage.
How do you get heat out of the heat storage?
The heat storage is unloaded by blowing cool air through the pipes. It heats up as it passes through the storage, and it can be used for example to convert water into process steam or to heat district heating water in an air-to-water heat exchanger.
Why do you use sand?
Many solid materials, such as sand, can be heated to temperatures well above the boiling point of water. Sand-based heat storages can store several times the amount of energy that can be stored in a water tank of a similar size; this is thanks to the large temperature range allowed by the sand. So, it saves space and it allows versatile use in many industrial applications.
What kind of a sand you are using?
The heat storage is not very sensitive to sand grain size. We prefer high density, low-cost materials that are not from scarce sources. Someone else’s dirt could be our heat storage medium. We prefer to use materials that are not suitable for construction industry.
Does it matter what the grain size of the sand is?
Not much, we prefer to use those grain sizes that are not suitable for construction industry.
How is the heat storage insulated?
The heat storage is made of steel and insulated with standard, heat resistant insulating materials. The insulation is all around the heat storage between the outer steel layer and the inner one.
How long does the sand stay hot in the winter?
It can stay hot for months if needed, but the actual use case of the heat storage in Kankaanpää is to charge it in about 2-week cycles. The heat storage has its best range of use when it is charged and discharged 20 to 200 times per year, depending on the application.
Is the outer surface of the heat storage hot?
The surface of the storage is not hot, because the heat stays inside the storage—where it should be.
Can it store electricity?
Not as such, as it stores energy in the form of heat. The heat can be converted back to electricity using turbines like the ORC-turbine or a steam turbine. This requires additional investments to the turbine technology, and the conversion to electricity has inherent losses, thus complicating the economical side.
Is this a new technology?
Well, yes and no. The idea of heating sand to store energy is not new. Our way of doing things and commercializing it in large scale applications is.
#Sand Battery: An Innovative Energy Storage Solution#In recent years#the world has seen a growing demand for renewable energy sources that can help reduce our dependence on fossil fuels and mitigate the effec#energy storage remains a major challenge for the wider adoption of these technologies. This is where the sand battery comes in#an innovative energy storage solution that has been gaining traction in the scientific community.#A sand battery is a type of rechargeable battery that uses sand as its electrolyte#the substance that facilitates the flow of electric current. The concept of using sand in batteries is not new#as it has been studied since the 1980s. However#recent advancements in nanotechnology have made it possible to create high-performance sand batteries that are more efficient#durable#and cost-effective than ever before.#The basic principle behind a sand battery is simple. The battery consists of two electrodes#an anode and a cathode#separated by a layer of sand. When the battery is charged#electrons flow from the anode to the cathode through the sand#creating a flow of electricity. When the battery is discharged#the process is reversed#and the electrons flow back to the anode#providing electrical power.#One of the key advantages of sand batteries is their high energy density#which means they can store a large amount of energy in a small space. This makes them ideal for use in applications where space is limited#such as in mobile devices and electric vehicles. In addition#sand batteries are non-toxic#environmentally friendly#and have a long lifespan#making them a more sustainable energy storage solution compared to traditional batteries.#Another advantage of sand batteries is their low cost. Unlike traditional batteries that use expensive metals such as lithium and cobalt#sand batteries use abundant and widely available materials such as sand#graphite#and aluminum. This makes them a more affordable energy storage solution
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Basically, it’s discovered that to help stabilize Danielle, aka Ellie, it’d be best to have her be smaller. She refused to be turned into a kid by Frostbite/her own power ability, when Danny remembered the shrink ray his parents made. The side effect is that they’re kind of stuck as humans when they’re that small—they can use some ghost powers, but basically, it’s a weird side effect of the shrink ray. That’s canon, by the fucking way, lmao
Anyways, so Ellie agrees, and Danny will shrink himself with the ray to her size to help her out when needed/when she wants company her size, with Jazz, Sam, and Tucker occasionally helping out. Sam buys one of those really ornate Victorian dollhouses, with wooden everything, and Danny does some… renovations… so that it no longer opens and is a proper house. There’s still some oddities because it’s a dollhouse originally, but it was easier and faster to give her a home. One of the first additions was a water/wastewater system, followed like two hours later by an electrical system. Since it was so small, Danny was able to do it fairly quickly in his big size, occasionally going small and using the small window for using his powers to double check on things.
The water system had to be refilled every week, unless hooked up to a plumbing system in a house, which Danny made some outlets for in Jazz’s room—it was easier and had significantly less questions/didn’t stand out as much if placed in Jazz’s room. They usually did it every three days, though, as the plug-in process was still a bit… hinky. The tanks for holding the water were in the ‘basement’, which was mostly inaccessible from the inside of the dollhouse but basically looked like a big stand the dollhouse stayed on. Like someone ripped a full house out of the ground WITH the basement attached. There was a small access hallway down some stairs in the house for the clean water system, though.
The electric system was fairly simple, as it didn’t cost much energy to light a dollhouse and heat/cool water. There was an AC unit, Ellie’s request, but it hardly was used and was fairly efficient just due to pure size. It was fueled by ecto batteries, which Danny made sure had a few rechargability options—just because it was efficient energy didn’t mean it didn’t ever need recharging. There was a very small ecto filter, but due to its relative small size, was easy to clean and was fairly stable, so they had a whole closet of them just chilling out, both filled and empty. The battery itself could be charged by ecto sources, Danny’s own blood, or ambient ectoplasm gained by using something that looked like a solar panel and a satellite dish had a child that the batter could be placed in. The hookup also allowed for like… normal D cell batteries.
They would buy dollhouse furniture, and occasionally just buy the big version then shrink it down. Ellie had a huge old house to herself, basically, might as well go ham. And she had a fun time with the designer doll clothes Sam liked to get, although the cheap doll clothes from the store were also fun. Best option was just buying normal clothes and shrinking them, but using things that were already small or just making stuff using normal sized objects was fun.
At some point, though, the Fenton siblings decide to go on a trip. Ellie begs to be taken along, and Jazz agrees—there’s a doll showcase in Gotham, and Jazz wanted to see if anything caught Ellie’s interest. Danny, having a room in the dollhouse himself, also went along. Might as well make it a sibling’s trip, right?
Ellie can be full size for small chunks of time, which they did while exploring the expo. They found some cool things to add, and some doll clothes Ellie was far too interested in trying on, as well as some to force on Danny later. He sighed, but like—that’s his little cousin-sister, he’d put up with it. After all, he learned how to plumb an entire (miniature) house in two days when she refused to move in until it had a fully functional bathroom, so.
Anyways!
They have a fun time, and sure, lugging the relatively giant dollhouse was a PAIN, but it was Ellie’s home, and some stabilizing tech made it relatively safe to move without risking everything freaking breaking. They load everything in again, and the dollhouse is now restocked with clothes, tiny furniture, and a lot of shrunken supplies—some foods are just hard to work with full size, and are easier to shrink, okay? Also soap, paper goods, pencils and pens, books, etc. Jazz loads the thing into her car, and Danny offers to stay with Ellie in the dollhouse—so Jazz gets them in, and shrinks them down, holding onto the shrink ray in the meantime.
All is going relatively well in Gotham traffic until there’s a rogue attack.
Go figure.
Jazz ends up unconscious, and Danny and Ellie can’t do anything before the rogue is taken care of and a paramedic team comes up. They hide back in the dollhouse, listening as the medics say she seems to be okay, just unconscious. A relief, but now they’re taking Jazz away. Fenton luck states she’s one of the few actually injured. The Bat Brigade comes by, and Batman notices that there’s a wallet for one Danny Fenton. Red Robin confirms that Jazz was likely here with at least two other people, based on the ticket stubs for the expo. However, there is a strange lack of social media presence, Danny doesn’t have a photo ID, and there’s no way of knowing for SURE that it was just Danny with her, if it was just two other people, or if Danny was in the car with her. Still, as they can’t find him but DO have his sister and his wallet, they assume he might be missing, possibly kidnapped.
The Gotham PD of course take in the car, although it’s pretty trashed. Knowing well and good that the dollhouse and such things are actually quite expensive, Commissioner Gordon mentions that it wouldn’t be a bad idea for Batman to maybe hold onto the Fenton’s things that *aren’t* related to the investigation.
Batman just takes everything. Including a rather peculiar looking gun that seems to have sustained some damage during the attack and car crash.
Gordon sighs. Figures.
So, Danny and Ellie end up in Wayne Manor. Most of the things end up in the Batcave, but Alfred insists that they place the doll things upstairs in the manor proper—the cave isn’t *that* damp, but doll things are small and delicate. So, upstairs they go.
At first, it’s fine. Danny and Ellie are fine in the dollhouse, and it’ll be at least a week before any of the systems NEED to be worked with.
Then Ellie ends up with a massive migraine. She gets them, on occasion, a sort of growing pain. Usually, they just shrink some medicine for her as she needs it, because she’s like—twelve. While they did have some medicine that had been pre-shrunk, when they were stocking up in Gotham, it turns out pain medicine was more expensive there. Not by much, but they figured—they’ll just stock up in Amity Park, they’ll be there in two days.
Haha. Nope.
So, Danny finally has to venture out. He lucks into finding the first aid kit—why there was one in the main living room, he’s not sure—and is currently working on trying to get open the blister packet of an ibuprofen when Alfred finds him.
Alfred stares at this tiny boy with a tiny make-shift knife trying to get into… over the counter pain medication.
Danny stares at this butler guy who had very gently cleaned the outside and noted the strange fact that the dollhouse did not open.
Danny waves at Alfred.
Alfred waves a tiny finger back.
“Hello,” Alfred says softly, which is fantastic because loud noises could get painful—part of the reason for Ellie’s headache was an argument between Tim and Damian. “How do you do?”
Danny hesitates, before he makes an exaggerated so-so gesture.
“You understand me?”
Danny nods—it’s rare for people to understand what he’s saying when he’s 5 inches tall.
“How wonderful,” Alfred smiles. “And how can I help our young guest tonight?”
Danny gestures to the blister packet.
“Pain medication? Isn’t that a little bit large for you.”
The teen thinks for a second on how to communicate. He points to the pill, then makes a slight show of pretending to grind something, like a mortar and pestle.
Thankfully, Alfred got the idea. “Would it be easier if I ground it up for you?”
Danny takes a moment to think before accepting with an enthusiastic nod.
“Very well,” Alfred says, taking the blister packet in one hand. He then hold his other out, palm up, like a platform. “Would you like to come with me?”
Danny ‘his survival instincts died when he did’ Fenton gets into Alfred’s hand.
Alfred grinds up the pill into a fine powder. Danny hands him a tiny bottle—still large in Danny’s hands, as it was not a shrunk bottle—that he had tied around his waist. Alfred fills it, and hands it back.
“I assume you came from the tiny house we have in our living room?”
Danny again nods. Alfred takes him there, setting him down outside the front door. Danny bows, and sure it’s Japanese as hell, and he’s white as all get out, but it’s a generally understood gesture of thanks. He hopes.
Alfred understands it just fine. “I bid you goodnight, then. Perhaps we will talk more, when you are feeling better?”
Danny hesitates, again, but he nods. Alfred had been nice enough, so far.
Danny heads in, quickly measuring out the medicine—shrunk pressure plates and scales and weights made what it was measuring relative—to him the weights on the hand balance scale felt the same weight. Ellie got her medicine, and they both went back to sleep.
He told her in the morning what happened. Ellie was strangely gung-ho about meeting this butler guy, and so—when no one else was around���, she and Danny went onto the tiny balcony as Alfred came in to dust.
“Oh my,” he said. “There’s two of you, now. Should I expect more?”
Both of them did an exaggerated ‘no’ dance.
“Very well, I don’t believe I’ve introduced myself. I’m Alfred Pennyworth, the family butler. Welcome to Wayne Manor.”
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mrfoox · 2 years ago
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It finally happened, Oliver finally said he thinks im in love with Fabian
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