Arknights: Endfield blends strategic combat with surprisingly deep factory-building systems. As your Endmins expand production lines, automate refining, and unlock new facilities, one limiting factor quickly becomes obvious: power output. Hitting the electricity cap can slow progression, halt automation, and force difficult decisions about what stays online.
This guide breaks down how to increase power output efficiently, what materials you should prioritize, and how to plan for both early-game growth and late-game optimization—without wasting precious space or resources.
Table of Contents
- 1 Understanding Power Limits in Arknights: Endfield
- 2 Unlocking the Thermal Bank System
- 3 Crafting a Thermal Bank
- 4 Fuel Options: What Powers a Thermal Bank?
- 5 Battery Crafting Explained
- 6 Power Management Tips for Factory Expansion
- 7 Late-Game Strategy: Efficiency Over Volume
- 8 Need Faster Progress?
- 9 Final Thoughts
Understanding Power Limits in Arknights: Endfield

Every factory begins with a fixed electricity cap, which is more than enough during the opening hours. However, as you unlock advanced machines, refining chains, and packaging units, consumption rises rapidly. Once total demand exceeds supply, production efficiency drops and certain systems may shut down entirely.
Increasing power output isn’t optional—it’s a core progression requirement tied directly to factory expansion.
Unlocking the Thermal Bank System
The primary way to raise your maximum electricity capacity is by building Thermal Banks. These structures act as scalable power generators and are essential once your base grows beyond the early stages.
Step 1: Research Power I
To access Thermal Banks, you must first unlock Power I in the AIC Factory Plan. This research node does two important things:
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Unlocks the Thermal Bank blueprint
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Grants one free Thermal Bank, letting you test the system immediately
This research should be considered high priority once your factory begins expanding beyond basic refining.
Crafting a Thermal Bank
Once unlocked, additional Thermal Banks can be crafted using the following materials:
Required Materials
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10 Origocrust
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10 Amethyst Parts
How to Produce Them
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Origocrust:
Refine Originium Ore in a Refining Unit -
Amethyst Fiber:
Refine Amethyst Ore in a Refining Unit -
Amethyst Part:
Process Amethyst Fiber in a Fitting Unit
This production chain is straightforward and accessible early, making Thermal Banks one of the most cost-effective upgrades available.
Fuel Options: What Powers a Thermal Bank?
Thermal Banks require fuel to generate electricity. The type of fuel used directly affects how much power is produced.
Available Fuel Sources & Output
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Originium Ore – Low output, extremely accessible
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LC Valley Battery – Moderate output
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SC Valley Battery – High output
While batteries generate significantly more power, Originium Ore is usually the best early-game choice due to how easy it is to obtain and process. Batteries become more valuable later when factory space is limited and efficiency matters more than raw availability.
Battery Crafting Explained
Even if you don’t use batteries immediately for power generation, they’re worth understanding due to their flexibility and resale value.
LC Valley Battery Production
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Originium Ore → Originium Powder (Shredding Unit)
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Amethyst Ore → Amethyst Fiber (Refining Unit)
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Amethyst Fiber → Amethyst Part (Fitting Unit)
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Combine Originium Powder + Amethyst Parts in a Packaging Unit
SC Valley Battery Production
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Originium Ore → Originium Powder
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Ferrium Ore → Ferrium
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Ferrium → Ferrium Part
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Combine Originium Powder + Ferrium Parts in a Packaging Unit
SC Valley Batteries are resource-intensive but offer excellent power density, making them ideal for compact late-game factory designs.
Power Management Tips for Factory Expansion
Increasing power output isn’t just about adding generators—it’s also about using energy wisely.
Optimize Before Expanding
Before building new Thermal Banks:
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Check for idle machines
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Eliminate redundant refining lines
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Balance production ratios to reduce waste
Plan Factory Layouts Around Power
Thermal Banks take up space. Smart layouts cluster power generation near high-consumption zones, reducing expansion headaches later.
Scale Gradually
Avoid overbuilding generators too early. It’s more efficient to:
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Add power only when demand requires it
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Upgrade fuel quality as space becomes limited
Late-Game Strategy: Efficiency Over Volume
As areas become crowded, switching from Originium Ore to battery-powered Thermal Banks becomes increasingly attractive. Fewer generators producing more electricity means:
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Cleaner layouts
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Easier expansion
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Better long-term scalability
At this stage, power planning becomes less about survival and more about optimization.
Need Faster Progress?
If you want to skip the grind and reach advanced factory setups faster, Arknights Endfield Boosting at GladiatorBoost offers a reliable solution. Whether you’re struggling with resource bottlenecks, research progression, or overall factory efficiency, professional boosting services can help accelerate your progress safely and discreetly.
Many players use boosting to unlock key research nodes like Power I sooner, optimize production chains, or prepare for late-game content without spending countless hours micromanaging resources seen earlier in Talos-II.
Final Thoughts
Power output is one of the most important systems in Arknights: Endfield, directly influencing how quickly—and how efficiently—you can grow your factory. By unlocking Thermal Banks early, choosing the right fuel for each stage of progression, and planning layouts strategically, you can avoid power shortages entirely.
Mastering energy management doesn’t just keep your machines running—it unlocks the full potential of your Endmins’ industrial empire.
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