The Solar Array is a multiblock structure added by Environmental Tech. It can generate massive amounts of Forge Energy from sunlight, and comes in 6 tiers. FE production depends on the tier of the Solar Array, the Solar Cells that are used, as well as the current amount of sunlight the latter. Harness the power of the sun to generate electricity. I highly recommend using it together with Crafts & Additions but it's totally optional. Download the best Minecraft maps here.