We have a photovoltaic storage with 1 kWh of usable storage capacity with 5000 cycles, a discharge depth of 100% and an efficiency level of 90%. That’s 4,500 kilowatt-hours of energy throughput.
The kilowatt hours of energy throughput are then compared in the cost comparison to the cost per kWh.
If the initial costs are 800, – Euro per kWh, then the effective cost per kWh is 0.17 Euro.
It is important to compare the solar storage properly. For practical use with a photovoltaic system you need in addition to the battery, an inverter and an energy management. Thus, the costs should be compared holistically and not just the storage only.