The partnership is worried by Cooper's removal of an on-site renewables policy from the Yorkshire and Humber regional spatial strategy in draft changes last month.
Regional assembly planners had suggested a ten per cent target for on-site renewables. But the government's proposed changes instead advise ambitious but viable proportions of supply from local renewable sources.
This is to "take account of PPS22 and the draft PPS on climate change", the document adds. Last month, Cooper said a "Merton-plus approach" is being lined up.
Proposed Changes to Draft Revised Regional Spatial Strategy 2007 is available at PlanningResource.co.uk/doc.