More room will have to be set aside for wind power if the Netherlands is to meet its renewables targets is the conclusion of a new study by the Netherlands Institute for Spatial Research. Unequivocally titled "Energy is Space," the Dutch report aims to focus attention on the relationship between energy provision and spatial planning. In planning terms, wind rather than biomass is the optimal renewable technology for the Netherlands it argues, but if the transition to a renewable energy economy is not to be hampered, provision should be made now for expansion beyond 2020. Apart from space for more onshore wind farms, room should be set aside for some 20,000 MW of offshore capacity -- around 2400 square kilometres, it calculates. An offshore industry of this scale will also require considerable onshore facilities, and space must be set aside.