Secondly, FOE (2007) has identified that it is rather difficult to generate huge twice daily pulses of barrage power to National grid. This is indeed a hectic thing to balance. The team of FOE (2007) has related the case of development of Severn barrage to numerous issues that would include emissions, sea level rise, and impact on the rail link functioning and other environmental impacts. Finally, there are dilemmas regarding the ability to meet the overriding public need, the potential power output, carbon capture and construction emissions.
Hafer (2013) has regarded the project to be one – off structure where the possibility for modification has a limited scope. There is no possibility for incremental cost reduction or technology innovation. Additionally, Hafer (2013) regards that the environmental implications tend to remain highly uncertain. The best estimates have not produced better announcement regarding the environmental sustainability.
The Exeter University (2011) has presented a report on the appropriateness and feasibility of Severn Barrage. The advantage with the construction is that it has the ability to cause a transition to modify the environment to a low carbon economy as it mainly functions with the zero carbon electricity. On the other hand, the nation’s carbon emissions would be greatly reduced. Therefore, the imported fossil fuels are not required at this stage. The dependence would automatically decrease (Exeter University, 2011).