Even though wind and solar power have recorded strong growth since 2005, there has been a slowdown since 2014, so the auditors recommend for national authorities to focus on closing gaps to meet the 2020 targets set by the EU, to simplify the procedures, to promote investment in grid infrastructure and to ensure better monitoring.
https://www.neweurope.eu/article/auditors-warn-that-eu-needs-more-wind-and-solar-power/