The electricity sector has traditionally been constructed for large scale generation and distribution from the high-voltage to the low-voltage network. Transition is however underway; intermittent power generation has become less expensive and nuclear power plants are set to close down. A key issue is that intermittent power generation is by definition weather dependent, hence it cannot be planned. Smart grid solutions have the possibility to meet variations in electricity supply and demand and make use of output from intermittent renewable energy through a broad range of products and services, e.g. energy storage and adjustment of electricity production and consumption in strategic times for residential, commercial or industrial end users....