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 20 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.


ENERGIESTRO plans to produce a range of flywheels with storage capacity from 5 to 50 kWh.


The power rating of a flywheel can be chosen independently from its storage capacity. As a standard, ENERGIESTRO offers a power rating enabling a charge or discharge in one hour (for instance the 5 kWh flywheel has a 5 kW power rating). Individual power ratings can be made for special applications.

The table below gives the main features of the flywheels of the intended range:

Capacity (kWh) Diameter (m) Height (m) Mass (t) Power (kW)
5 0,8 1,5 1,7 5
10 1,0 1,9 3,3 10
20 1,2 2,4 6,6 20
50 1,6 3,3 16,6 50


ENERGIESTRO flywheels will be available in low voltage (48 V) or high voltage (from 500 to 1,000 V) in order to connect to standard battery inverters.


Pin It on Pinterest

Share This