Mekanism Add Upgrade Slots
📖 Overview
This Mod introduces Upgrade Slots to Machines and Generators that originally do not support Upgrades in Mekanism.

⚡ Upgrade Effects
- Speed Upgrade
Increases the Generation Rate (power produced per tick) of supported Machines up to 10×. - Energy Upgrade
Expands the Max Energy Storage up to 10×.
Increases the Output Rate (energy per tick that can be transferred) up to 10×.
🔧 Supported Machines
- Bio Generator
- Gas Generator
- Heat Generator
- Solar Generator
- Wind Generator
- Laser Amplifier
- Laser Tractor Beam

NEW - Fusion Reactor
Added THREAD and Energy Upgrades to the Fusion Reactor, enhancing Plasma Temperature, Energy Capacity, Tank Capacity, and Steam Output for Significantly Strengthened Power Generation
More machines, including multi-block structures like Thermal Evaporation Plants and Fusion Reactors, are planned for upcoming updates!
📦 Requirements
⚠ Notes
⚠️ This addon significantly alters the balance of Mekanism.
Please be cautious when installing, as it may affect existing worlds and interactions with other mods.
Because this mod modifies core Mekanism behavior, there may be instability in certain environments. It is highly recommended to keep backups of your world when trying this mod, just like with any new mod version.
There is a known bug where the back button in the upgrade GUI does not work.
- Edition: Minecraft Java
- File type: .jar
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as MekanismAddUpgradeSlots-1.8.0-dev.jar — drop this file into the mods folder
- Download size: 63 KB
- Download link checked 12 Sept 2026 — working
These come from our own check of the pack file, not from the source page.