Parameter for the storage of electric power

What are the cost criteria for an electric power storage? What are the costs to store electricity? Javascript calculator for the basic parameters to store electric power.
EUR per kWh electric power storage capacity
% interest
EUR purchase price per kWh electric power
% efficiency of the storage
Number of full cycles
EUR maintenance cost per kWh storage and year
kWh storage turn around per year and kWh storage
Years for the credit
EUR per year and kWh storage capacity
EUR cost per kWh stored
EUR electric power purchase per kWh to sell
EUR per kWh total
Regardless battery, pump storage power plant with water or air or hydrogen with fuel cell or CCPP, this calculator can show the storage costs per kWh

The next pages show some typical parameters of different storages.