The EFOY Pro can do duty wherever other generating technologies are needed. The following table illustrates the advantages of the EFOY Pro compared to solar modules, generators, and batteries.

As an alternative energy source, the EFOY Pro is not designed to replace conventional off-grid power supplies. It is their ideal complement. The EFOY allows you to shrink battery size to a minimum, thus reducing weight. Since exhaustive discharge is now a thing of the past, the EFOY prolongs battery life and eliminates the critical disadvantage of a battery – its limited capacity. 

The EFOY Pro, teamed up with a photovoltaic system, has proven to be a winning combination. As long as the sun is shining, devices can run on free solar energy. However, in inclement weather the solar module may no longer be able to generate sufficient voltage. The fuel cell klicks in automatically the moment battery voltage dips below a certain threshold, assuring that your electrical devices will continue to operate.