Mekanism’s machines can do a lot of useful and important things, like auto mining the ground for ores, or letting you fly on your jetpack. But none of this would be possible without power. This power can come from generators or batteries, but either way is the most crucial part of Mekanism. Some ways to generate this power is from different generators. From fusion reactors to wind turbines, Mekanism has lots of ways to make power. But each generator is not the same, for example the wind generators need to be placed at a high altitude to generate maximum power, and a solar generator only produces energy in the day and gets a 30% energy production bonus in deserts. Some generators are easy to make and should be the first thing that you craft, such as the Heat Generator which only requires 1 furnace, 3 iron, 2 copper and 2 wood planks. Other generators such as the Fusion Reactor or the Advanced Solar Generator require late game items such as diamonds but also will give you almost infinite power.