Power is the thing that sneaks up on you in Arknights: Endfield. One minute you're happily running a couple of miners, and the next your whole base is blinking red because you added "just one more" production line. If you're starting fresh (or swapping to a cleaner setup on a new save), having reliable Arknights endfield accounts can help you get to the fun part faster, but either way the lesson is the same: build your grid around Thermal Banks and plan to automate their fuel as soon as you can.



Getting Thermal Banks online early
Your first real milestone is pushing through Chapter 1 and clearing "Paving The Way." That unlocks the "Power I" tech in the AIC Factory Plan, and that's when Thermal Banks finally enter the picture. Early-game, don't overthink it. Drop Electric Mining Rigs on Originium Ore, run conveyors straight into two to four banks, and take the win. It's not elegant, but it bumps your ceiling well past that cramped early limit and buys you breathing room. The one thing I'd stress: keep the banks close to your Production Automation Core. Long belt runs are annoying to route, and hand-feeding anything gets old fast.



Mid-game fuel: stop burning raw ore
Once your base starts expanding, raw ore becomes the "I guess this works" option, not the smart one. That's where the Packaging Unit comes in. Research it, then set up a line for LC Valley Batteries. The recipe is simple on paper—5 Amethyst Parts plus 10 Originium Powder—but it forces you to get your logistics under control. You'll want stable powder production, a steady Amethyst pipeline, and enough storage so the line doesn't stall every time you blink. When it's dialed in, though, one battery line can comfortably keep four (sometimes more) Thermal Banks fed, and each bank kicks out a noticeable extra chunk of energy compared to raw ore.



Scaling up and avoiding total blackouts
Later on, you'll feel the squeeze again, and that's your cue to upgrade fuels. SC Valley Batteries are a solid step up for a wider factory footprint, and HC Valley Batteries are the long-term answer when your grid's carrying heavy automation. Also, do yourself a favour: keep an emergency stash of at least 100 batteries in a safe box that isn't dependent on the same grid chain. If you trip a deficit and everything shuts off, that stash is your jumpstart. When you're sliding into the red, don't panic-build—just cut load for a minute. Toggle off idle buildings, disconnect a couple relay towers, and get your fuel line flowing again.



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