The E3/DC S10 energy storage system is the first fully developed electricity storage system for the home.
The S10 energy storage system is suitable for domestic and commercial use for consumption up to 6000 kWh / year.
Advantages at a glance:
- independent of rising energy costs and the grid;
- covers over 75% of energy consumption;
- storage and intelligent use of self-generated electricity;
- lithium-ion battery with minimum 20-year life span;
- system monitoring via smartphone app or PC;
- connection to home automation.
More 
With a solar power system from Solen Energy, I am finally free from rising energy prices.