The six facilities, which are currently being considered by Tidal Lagoon Power, would supply 8% of the UK’s electricity and annually contribute £3.1bn to the country’s GDP.
The study also found that constructing the lagoons would give the UK a leading position in global markets, with exports potentially worth £70bn.
The 12-year investment programme to construct the lagoons could create or sustain about 36,000 jobs on average and up to 71,000 jobs at its peak.
Cebr founder and executive chairman Douglas McWilliams said: "Tidal lagoon is not the only renewable technology being deployed in the UK but it could be the important missing piece in the energy generation mix.
"In contrast to wind and solar, it produces totally predictable power 14 hours a day, reducing the cost of stand-by generators.
"The electricity it produces is expected to be cheaper than offshore wind and similar in cost to new nuclear."
Tidal Lagoon Power plans to build the UK’s first tidal lagoon project in Swansea Bay in Wales after securing approval.
Tidal Lagoon Power CEO Mark Shorrock said: "The UK will soon decide whether or not to embrace tidal lagoon infrastructure.
"Having analysed all of the costs and all of the savings associated with this decision, this study clearly demonstrates that the annual benefits to the national economy would be enormous, immediate and long-lived."
Image: The six facilities, which are currently being considered by Tidal Lagoon Power, would supply 8% of the UK’s electricity. Photo: Courtesy of Centre for Economic and Business Research.
