/29th June 2017, IEA, RENEWABLE MARKET WATCHTM,IRENA/, The share of renewables in overall power generation is rapidly increasing, both in developed and developing countries. Furthermore, many countries have ambitious targets to transform their power sector towards renewables. To achieve these objectives, the structure and operation of existing power grid infrastructures will need to be revisited as the share of renewable power generation increases. Renewable energy technologies can be divided into two categories: dispatchable (i.e.biomass, concentrated solar power with storage, geothermal power and hydro) and non-dispatchable, also known as Variable Renewable Energy or VRE (i.e.ocean power, solar photovoltaics and wind).