REBOX- 10kWSPV//10kWhNiFe//H/100kWh/t. The description of values indicate the following: The 10 kW SPV production is stored in 10 kWh NiFe battery and the capacity of the solid metal hydride hydrogen holding container is 100 kWh (3 kg H2). „t” in the name means, that the hydrogen is used for thermal energy. A Fuel Cell can also be added to the system. The selling price of the system is $37,500
The first figure shows the system from the outside, with the model standing next. The second and third pictures show the two sides of the REBOX, one with the NiFe batteries, the other the hydrogen side. The size of the box is 1m x 1m x 2m. It can contain up to 20 kWh NiFe batteries and 100 kWh equivalent in H2.
The life cycle cost of electricity can be calculated. At the latitude of Budapest there are 1250 hours of equivalent peak sun hours per year. In 30 years, within the guaranteed life of the product the 10 kW SPV will produce 10 kW x 30 years x 1250 hours/year = 450,000 kWh of electricity. Therefore the cost of produced energy: SPV electricity cost = $37,500/450,000kWh = $0.08/kWh