Scheme will offer training for plumbers, welders and carpenters as well as promoting trade union recognition

Plumbers, electricians and welders will be in huge demand as part of a national plan to train people for an extra 400,000 green jobs in the next five years, Ed Miliband has said.

The energy secretary revealed a new scheme to double those working in green industries by 2030, with a particular focus on training those coming from fossil fuel jobs, school leavers, the unemployed, veterans and ex-offenders.

He said the plan would involve measures to ensure companies receiving public grants and contracts need to create good jobs across the clean energy sector. It will also promote greater trade union recognition and collective bargaining in the clean energy sector, including when jobs are offshore.

Miliband’s announcement was welcomed by unions from Unite to the GMB, which have long been pushing for a more detailed plan for how people will switch from old fossil fuel industries to those in clean energy in the future.