The ENERGIESTRO flywheel stores energy like a stationary battery, but with the added benefit of unlimited life. In practice a flywheel will operate more than 30 years and one million cycles, whereas a battery lasts a few years and thousands of cycles. The bottom line is: the cost of energy storage with an ENERGIESTRO flywheel is much lower than with a battery.
As a standard, ENERGIESTRO offers a power rating enabling a charge or discharge in one hour (for instance the 10 kWh flywheel has a 10 kW power rating). For 24 hour storage, the optimal ratio between capacity (kWh) and power (kW) is 5 hours (for instance the 100 kWh flywheel has a 20 kW power rating).
ENERGIESTRO plans to produce a range of flywheels with storage capacity from 10 kWh to 1 MWh.
The table below gives the main features of the flywheels of the intended range: