The largest reactor is the Edison reactor. A small amount of Mana is put into a small container. Base mana is sometimes extracted from Mochite, and sometimes generated by other mana reactors. It is let to grow, and then used as energy storage. Different mana reactors have different amounts of mana, but all are very efficient. The best mana reactors utilize the property of mana where if there is not enough energy, matter can be summoned, and can generate huge amounts of energy in an amount of time less than a second. The only downside is that mana reactors MUST stay on.