Concrete flywheel storage system for residential PV. A French start-up has developed a concrete flywheel to store solar energy in an innovative way. Currently being tested in France, the storage solution will be initially offered in France’s overseas territories and Africa. France-based start-up Energiestro has developed a storage technology for residential PV based on a flywheel system based on concrete. A flywheel system is able to store electricity by converting it into kinetic energy using a motor to spin a rotor. The flywheel rotates at such a high speed that the electrical power is transformed into mechanical power.
PV Magazine 21st June 2021 read more »