Premier Kristina Keneally said yesterday the NSW Government had approved the Kyoto Energy Park and its 34 wind turbines and 100 hectares of solar panels.

The decision has left horse breeders reeling and a group of residents, the Hunter Landscape Guardians, devastated.

The Upper Hunter Shire Council is keenly awaiting information about what conditions have been placed on the project to protect local roads.

Ms Keneally said the development would power 47,000 homes and the carbon emissions saved would be equivalent to taking about 60,000 cars off the road a year.

Residents rubbished the estimates, saying wind power was not reliable enough to meet those targets.

Guest house operator Julle Bierling, whose LeCamah Hill bed and breakfast is next door to the development, said it would tower above his business and was in a wildlife corridor.

"People come here for the peace and quiet, you can imagine what this will do," he said.

Project manager for the energy park, Mark Sydney of Pamada Pty Ltd, said he felt there was strong community support.

"Obviously certain people have genuine beliefs about things they don't like, but overwhelmingly the community has been in favour of it," he said.

"We need to do these things to combat global climate change issues."

The Hunter Thoroughbred Breeders Association had repeatedly warned the NSW Government against putting a wind farm so close to horse studs.

Committee member Michael Thew, of Crowingstone, said the development would have a negative impact on those around it.

"It's crap," Mr Thew said. "It's a wind farm with some add-ons. If it was all solar I would be out there helping them build it."

Hunter Landscape Guardians president Carmelle Lymbery, described the decision as devastating.

"We spent three years fighting this, we're Scone residents and it's going to be in our backyard," she said.

NSW Planning Minister Tony Kelly said Pamada had scaled back its proposal, removing 13 wind turbines from the initial plan.

Mr Kelly said 67 conditions were placed on the approval to limit its noise and visual impact and to minimise risks to local bird and bat species.