On assignment of the Dutch Ministry of Economic Affairs, ECN and KEMA have studied the cost of renewable electricity production. This cost assessment for various categories is part of an advice on the subsidy base for the feed-in support scheme SDE+. The report contains a draft advice on the cost of projects in the Netherlands targeted for realisation in 2012. The options cover installations for green gas, biogas, renewable electricity and renewable heat. The draft advice has been written to facilitate the market consultation on the 2012 base rates. The open market consultation is to be held in August 2011.