[Spaceships] Where are the Capacitors?

[vicky_molokh]

Greetings, all!

Back in 3e days, I remember designing ships which could get big but temporary power outputs - like for heavy weapons or drives - through the use of large capacitors. They would then slowly recharge from their cheap/small reactors.
But a quick look through SS didn't find capacitor systems. Am I missing them or what?

Thanks in advance!