The federal government has appointed civil engineer Danny Broad to the Australian Renewable Energy Agency board, filling the last of five board members.

Mr Broad has commercial management experience in the power, civil, construction and rail industries and joins the other four board members: chair Greg Bourne, Secretary of the Department of Industry Glenys Beauchamp, Judith Smith and Martin Hoffman.

Mr Broad will help ARENA deliver against its $2.5 billion mandate to improve the competitiveness and uptake of renewable energy across Australia.

ARENA is currently managing a portfolio of more than 200 projects worth around $3.5 billion spanning the entire commercialisation pathway.