Zero-point energy

Zero-point energy (ZPE) is the lowest possible energy that a quantum mechanical system may have. The quantum foam is made up of fluctuating fields comprised of matter fields, whose quanta are fermions, and gravitational and force fields, whose quanta are bosons, and this foam has ZPE.

A vacuum is space without matter but it has ZPE fluctuations called the quantum foam and this provides a vacuum with vacuum energy, a special case of zero-point energy. In Stargate the Zero Point Module (ZPM) is a power source that extracts vacuum energy from the multiverse.

Zero-point radiation of a vacuum is an order of magnitude greater than nuclear fission energy, with a single light bulb containing enough energy to boil all the world's oceans.

The relationship between electromagnetic energy, ZPE and dark energy is only understood by Type I civilizations.