Snowy Hydro boss Paul Broad has slammed the NSW energy infrastructure plan as “fundamentally flawed”, saying it risks building in extra costs for consumers, but has backed the federal government in pushing for a large new gas-fired power plant in the Hunter Valley.

In his first public comments on the NSW road map developed under Energy Minister Matt Kean, Mr Broad said he was worried it would drive “sub-economic” investments that will be passed to consumers and render the nation uncompetitive later this decade.