The capacitor was a new development in energy production that provided a "near-Zero Point Module level of energy", though it is unknown what exactly is meant by the term 'near'. It draws power from our subspace in a similar but non-identical manner to a ZPM, which draws power from an artificially created and contained region of subspace-time. Also, while a ZPM will eventually run out, a subspace capacitor is able to store power from our subspace-time, and thus is a renewable energy source. However, there is a finite limit to how much power can be stored and made available at any given time. So while there is great potential in this new energy source, it is limited at the moment.