Aneutronic fusion is a safer form of fusion that produces little or no neutron radiation, allowing reactors to operate cleanly and with far less shielding. Like fusion power in general, the fuels are typically common and the energy provided is practically limitless. Aneutronic fusion provides baseline power for most civilizations, including the Fringe. It is cheap and plentiful. Such reactors are bulky and typically used fixed or ship-based installations.
The most common Aneutronic reactors utilize Deuterium-Tritium or proton-boron fusion.