Solar Flux Reborn Mod 1.18.1/1.16.5/1.12.2 adds many solar panels that are effective to generate FE or RF. It contains 8 tiers that are configurable and other notable features.

Solar Flux Reborn’s Main Features
Since 4.33r, it’s possible to create custom panels with custom textures, names, and FE rates. Besides, version 1.14.4 won’t work with Java 11. The following elements are the remaining content.
Blocks comprise Solar Panel I –VIII. There are other types of Solar panels like Wyvern, Draconic, Chaotic, Dark Matter, Alchemical, Thaumium, Void Metal, Neutronium, and Infinity.
Items
Materials including Mirror, Photovoltaic Cell from I to VI, Dark Matter Photovoltaic Cell, Blank Upgrade
Upgrades for Efficiency, Transfer Rate, Capacity, Traversal, Dispersive, Block Charging, and Furnace
Feasible to configure the number of tiers and their production/capacity to fit your demands
Solar panels can auto-share their energy if they are close to each other without cables.
There are “Vanilla” recipes only by the author of the original Naukits mod.
Solar Flux Reborn is a basic but modular Thermal Expansion mod. Wearable Solars is the known add-on at present. It’s useful to attach any panel to any helmet item. To access and deploy anything, download and install Minecraft Forge!
Screenshots