The governments of the Republic of Ireland and Northern Ireland have launched a consultation on a strategy for renewables in the move towards a single energy market for the whole island of Ireland. Irish minister for Communications, Marine and Natural Resources, Noel Dempsey, and his Northern Ireland counterpart, Angela Smith, are calling for an open debate on how to plan for sustainable energy supplies through to 2020 and beyond. The consultation document asks for views on how to measure the appropriate level of renewables penetration on the island in 2020; the optimum energy mix; the balance of large remote generators, small scale generators and buildings integrated renewables; the implications for the grid network and infrastructure investment -- and who should bear the costs; what the regulatory framework should be, and market incentives and support. "We have a common excessive reliance on energy imports," says Dempsey. "The development and harnessing of our indigenous energy resources on a shared basis will maximise efficiencies."