Members of Suffolk County Council are today expected to add their voices to calls for the developers of Sizewell C to invest in the local economy.

Former council chairman Guy McGregor and Leiston councillor Richard Smith – both members of the ruling Conservative group – have tabled a motion calling on the authority to seek the greatest possible contribution to the local economy if the power station goes ahead.

It says: “This council, noting that it is the intention of EDF to build another nuclear power station adjacent to Sizewell B... calls upon Suffolk County Council to redouble its efforts to ensure that Suffolk gains significant community and long-term infrastructure benefits arising from this project which is of key strategic importance to the UK.”

Mr McGregor said the project would be the largest new development in the country once work on Crossrail in London is completed, and Suffolk should be in a position to benefit.

He said the construction of Sizewell C would cost an estimated £16billion over 10 years – and the cost of community improvements was small by comparison.

Among the improvements being sought is a cash contribution towards a new bypass for the four villages of Marlesford, Little Glemham, Stratford St Andrew, and Farnham.

The council’s ruling group is set to back the motion.

Cabinet member for transport Graham Newman said: “The proposed development of Sizewell C presents significant benefits to the Suffolk economy for years to come. The scale of this multi-billion-pound project will be the biggest for generations.

“There will be significant opportunities for new employment throughout the build period and beyond and a range of positive impacts for local business and the surrounding community.

“We are in discussion with EDF to ensure they understand their duties and responsibilities given the size of their development.

“EDF must address all the impacts their development will have on Suffolk.

“Working with my colleagues in Suffolk Coastal District Council we need to ensure that new road and infrastructure provision is accounted for as part of this work.

“I have repeatedly made it clear that we expect significant investment in Suffolk to enable EDF’s proposal to be the success it needs to be.”