With the – desirable – expansion of renewable energies, a major challenge had to addressed: fast and efficient storage of electrical energy – in small and large quantities. Even modern Li-Ion batteries are reaching their limits. They are also highly dependent on outside temperatures and potentially self-igniting.With the – desirable – expansion of renewable energies, a major challenge had to addressed: fast and efficient storage of electrical energy – in small and large quantities. Even modern Li-Ion batteries are reaching their limits. They are also highly dependent on outside temperatures and potentially self-igniting.

This is why SWJ Energy is taking an entirely new approach. The CapModule energy storage systems series has characteristics that any Li-Ion battery would want: fast recharging capability, independence from surrounding temperatures, special durability, and no risk of explosion – to name just the most important. But how does SWJ Energy make this possible?

Our energy storage systems are based on supercapacitors, the so-called “supercaps”. These offer a much higher power density than regular capacitors – i.e., the well-known electrolytic capacitors. Supercaps are not a new invention, but the fact that they now have capacities of more than 100.000 Farad is a small revolution of recent years. This capacity makes them particularly interesting as an alternate energy storage system.These offer a much higher power density than regular capacitors – i.e., the well-known electrolytic capacitors. Supercaps are not a new invention, but the fact that they now have capacities of more than 100.000 Farad is a small revolution of recent years. This capacity makes them particularly interesting as an alternate energy storage system.

Individual SuperCaps do not suffice to produce electrical storage in larger dimensions, such as a home energy storage for photovoltaic systems. For multiple caps to be charged and discharged at the same time, it requires so-called “balancing” – specifically the balancing of the current electrical flow. This know-how is the secret behind the performance of the CapModule power storage systems series.