Antimatter reactor
An antimatter reactor, antimatter pile, or main reactor was a power generation device that utilized antimatter. Antimatter reactors typically emitted neutrinos as a byproduct.

In 2151, Sub-Commander T'Pol detected neutrino emissions from a city on the Akaali homeworld despite the society being pre-industrial. The neutrinos were later found to be caused by a Malurian antimatter reactor, which was powering a secret underground veridium mining operation, eight meters beneath the surface. ()

In September 2152, Commander Tucker noted that they had to shut down the main reactor to prevent being broiled inside the catwalk. ()
Energy technology