Mekanism Overflow Energy
by toapuro
Mekanism Overflow Energy lifts the single-transfer cap that Mekanism places on energy moved through ForgeCapabilities.ENERGY, letting power flow past the Integer.MAX_VALUE limit.
What it does
Mekanism limits any one energy transfer through the ForgeCapabilities.ENERGY system to Integer.MAX_VALUE, about 2.14 billion units. Mekanism Overflow Energy extends that limit by allowing a transfer to repeat several times within a single tick, so the total power moved per tick can exceed the cap. The number of repeated transfers and the maximum operation count are set in a generated config file, where the default is defined.
Installation needs Forge for Minecraft 1.20.1, and the mod is published for that version alone. Both the server and every player need it, because the energy transfer runs on both sides. The code is MIT licensed and open source, with public links to its source and issue tracker.
Key features
Power beyond the single-transfer cap
Energy transmission can exceed Integer.MAX_VALUE in a tick instead of stopping at Mekanism's limit.
Repeated transfers per tick
A transfer can run multiple times within one tick, with the count set in the config file.
Generated config file
A config file is created on first launch, holding the default number of repeated transfers and the maximum operation count.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
MaxMekanism is also a Forge mod for 1.20.1, open source under the MIT License, and works on client and server. Mek AE2 Infusion covers the same Forge 1.20.1 build and is open source under the MIT License, with the same client and server environment. Fkst Generators is a Forge mod for 1.20.1 that is not open source and is covered by the GNU Lesser General Public License v3.0 only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Mekanism Overflow Energy | Forge | 1.20.1 | Client and server | 2026-02-28 |
| MaxMekanism | Forge | 1.20.1 | Client and server | 2025-04-19 |
| Mek AE2 Infusion | Forge | 1.20.1 | Client and server | 2026-06-03 |
| Fkst Generators | Forge | 1.20.1 | Client and server | 2025-01-03 |
Questions
Does Mekanism Overflow Energy need to be installed on the server?
In the catalog
Mekanism Overflow Energy is one of 8,499 Technology mods on ModsFinder, and one of 4,122 Technology mods for Forge. 34,764 mods support Minecraft 1.20.1.
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What the author says
By default, Mekanism is limited by the ForgeCapabilities.ENERGY system, which caps a single energy transfer at Integer.MAX_VALUE (~2.14G FE). Mekanism Overflow Energy extends this limit by transferring Integer.MAX_VALUE multiple times per tick, allowing up to Integer.MAX_VALUE * maxOperationCount energy to be…
Official listing
- Modrinth page
- modrinth.com/mod/mekanism-overflow-energy
- Owner
- toapuro
- Published
- 2025-08-22
- Updated on Modrinth
- 2026-02-28
- Facts verified
- 2026-10-15