The Department of Energy and Climate Change (DECC) has rejected four onshore wind projects in Wales.
The Llanbadarn Fynydd, Llaithddu, Llanbrynmair and Carnedd Wen wind projects in Powys have not been given the green light by the Government.
Plans to repower Llandinam wind farm have been granted but the request for a power line to link it to the grid is rejected.
The decision follows a public inquiry and environmental inspections.
Some of the reasons involve a possible conflict with national, local and Welsh planning policy in terms of the landscape and culture heritage.
A DECC spokesperson said: “Careful consideration has been given to each application and the planning and energy issues involved.”
The UK Government announced it will scrap subsidies for onshore wind projects from April next year.