
Solar Flux Keep Upgrades
Prevents accidental voiding of solar panel upgrades
Screenshots

About this Mod
This mod modifies the crafting behavior of Solar Flux: Reborn solar panels.
The default recipe serializer that empties a solar panel of energy has been replaced with a recipe serializer solarfluxkeepupgrades:crafting_shapeless. The serializer is identical to minecraft:crafting_shapeless, but it extracts all upgrades installed in the solar panel instead of deleting them.
The default recipes for solarflux:sp_1 through solarflux:sp_8 have been replaced with a recipe serializer solarfluxkeepupgrades:crafting_shaped. This serializer identical to minecraft:crafting_shaped, but it only accepts solar panels that do not contain any upgrades.
If the number of upgrades exceeds the size of the crafing grid, (typically the 2x2 inventory crafting grid), then the recipe must be performed multiple times to extract all upgrades.
If you have Draconic Evolution installed, then this mod automatically applies to those solar panels. An additional recipe serializer is available solarfluxkeepupgrades:fusion_crafting. This serializer prevents fusion crafting when the solar panel contains upgrades.
For modpack creators:
If you override the default crafting recipes from Solar Flux: Reborn, ensure the recipe type is changed from minecraft:crafting_shaped to solarfluxkeepupgrades:crafting_shaped.
If you add custom solar panels, ensure their recipes use solarfluxkeepupgrades:crafting_shaped and solarfluxkeepupgrades:crafting_shapeless
Available Versions
How to Install Solar Flux Keep Upgrades on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Solar Flux Keep Upgrades". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.20.1, 1.20
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Solar Flux Keep Upgrades server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Solar Flux Keep Upgrades compatible with forge and neoforge?
Solar Flux Keep Upgrades officially supports forge, neoforge for Minecraft 1.21.1, 1.20.1, 1.20. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Solar Flux Keep Upgrades – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Solar Flux Keep Upgrades consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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