Unions will spend more than $2 million on an anti-nuclear energy campaign targeting the Coalition in key electorates ahead of the federal election, including Opposition Leader Peter Dutton’s own marginal Queensland seat.

The Electrical Trades Union is leading the campaign, involving television, FM radio and digital ads, with $1.5 million funding and is backed by the Maritime Union of Australia and the plumbers’ union, which are spending $400,000 and $200,000, respectively.