A drawback of the hydrogen based storage is it’s inferior round trip efficiency compared to battery technology. Here a combination of a medium size Zn2H2 NiZn Battery for high efficiency short term storage (1-5 days/night) with the ability to store seasonal surplus for long duration offers the best of both worlds

Combining our two technologys allows to power homes completely independent of grid electricity supply.

Since Zn2H2 hydrogen system cost mainly scales with peak power requirements (FC cost) and in stark contrast to lithium based systems is insensitive to storage capacity, full seasonable independence can become affordable.