The Hunterston application is classified as a nationally significant development and as such it is within the gift of the Scottish government to grant or withhold planning permission.
North Ayrshire Council leader David O'Neill said: "North Ayrshire is in urgent need of new jobs – but not at any cost. We have the highest unemployment rate in Scotland and appreciate that a new power station at Hunterston would create new jobs. However, we cannot ignore the adverse impact this development could have on the area.
"Councillors at today's meeting recognised the strength of public feeling on the plans and expressed concern that the facility would not capture 100 per cent of carbon emissions from day one. They also highlighted the lack of sufficient information on the impact on human health and the effects the development would have on the local environment."
Last month, the Scottish Court of Session rejected a legal challenge to the inclusion of the Hunterston plant in the Scottish National Planning Framework.
Birdwatcher Marco McGinty claimed Scottish ministers had not properly consulted on the inclusion of the Hunterston site as a "national development".