Renewable energy sources are a major contributor to the transition of Europe’s energy sector. Development in technologies are key to the acceleration in market share in this sector. Today, shares for solar power photovoltaic (PV) electricity, biogas electricity and wind power are close to the levels anticipated by countries in their national renewable energy action plans (NREAP’s), drafted in 2010. Renewable energy sources shares continue to vary widely between countries, Austria, Denmark, Finland, Latvia and Sweden exceeding 30% in final energy consumption, whilst Belgium, Luxembourg, Malta and the Netherlands at just 9% respectively. Renewables accounted for approximately 70 % of net additions to global power capacity in 2017. Global investments in renewables have shown steady growth for more than a decade. This has led to a more than doubling of global renewable electricity capacity between 2005 and 2017. By 2017, for the third year in a row, more than half of all newly installed power capacity worldwide was of renewable origin, as RES accounted for an estimated 70 % of added net power generation capacity in that year (Frankfurt School-UNEP, 2018; IRENA, 2018b). In 2017, the EU still ranked second after China as regards total installed and grid-connected domestic renewable electricity capacity. The EU is a global leader in renewable electricity capacity per capita, but fast activity becomes visible outside the EU. With an average renewable electricity capacity of 0.87 kW installed per person in 2017, the EU is the clear world leader on a per capita basis, ahead of the United States, Brazil and China. In absolute terms, in 2017, Europe still had the largest wind capacity in place globally. However, since 2017, China has displaced the EU as market leader in solar PV capacity and is poised to overtake the EU, in absolute terms, as the world leader in total installed wind energy capacity.