Since 1998, The EurObserv’ER barometer measures the progress made by renewable energies in each sector and in each member State of the European Union in an as up-to-date way as possible (with figures less than 12 months old). EurObserv’ER produces a series of figure-backed indicators covering energetic, technological and economic dimensions.Every two months one barometer dedicated to one particular renewable energy sector is published in the magazine Systèmes Solaires – le Journal des Énergies Renouvelables and in PDF version.