Sun Charge

The goal of the project is to demonstrate a technology where thermal storage of e.g. solar thermal heat can be used to make local on-demand electricity production for the use of fast charging electrical vehicles. The novelty of the technology is the use of evaporation/condensation of a fluid to charge/discharge the thermal storage which consists of very low-cost materials such as stone.
The technology will be deployed at the district heating centrals where the waste heat from the heat-to-power conversion will be used for the district heating network.
The work can be divided into different fields, such as charging/discharging systems, thermal fluid optimization, heat storage materials and power generation controls and total system properties. Each field will be headed by specialists within the field.
Current status is that most single components has been shown to work on a rudimentary level (mostly in other applications), and the progress expected in the project will be a demonstration on the system level, where components of the system will be adapted to each other. The target for the project is to demonstrate a system that can be charged, stored for 24 hours, and discharged with an output of >150 kW electricity for at least 5 minutes.