Hafren Power

The company was established in 2010 as a consortium of companies forming a tidal energy business. Its founders included engineering and construction companies, intending to promote the Severn Barrage. It was originally named Corlan Hafren, which means Severn Group in Welsh. As of August 2012 it comprised four companies, Arup, Mott MacDonald, Halcrow and architects Marks Barfield. Halcrow is lead company. Associated companies and persons involved in the project include Atkins, Rolls-Royce, accountants KPMG and Roger Falconer.

Journalist Christopher Booker of The Sunday Telegraph noted in August 2012 that former Conservative Environment Secretary John Gummer was a former director of the company. As of August 2012 one sixth of shares were held by Sancroft International, which is owned by the Gummer family.

The House of Commons Energy and Climate Change Select Committee examined Hafren Power's proposal in 2013, coming to the conclusion:

Although construction of the barrage would be privately financed, Government support would be required for approximately thirty years through Contracts for Difference (CfD) or a similar mechanism. The strike price required by Hafren Power is unknown, but the ability of the project to compete with other low-carbon forms of energy is in doubt. A high strike price risks swamping the Levy Control Framework (LCF), while a strike price below £100/MWh appears unlikely to ensure the project’s economic viability.

Hafren Power have failed to overcome the serious environmental concerns that have been raised. Further research, data and modelling are needed before environmental impacts can be determined with any certainty – in particular regarding fluvial flood risk, intertidal habitats and impact to fish. The need for compensatory habitat on an unprecedented scale casts doubt on whether the project could achieve compliance with the EU Habitats Directive.

In 2013 and 2014 several executives and the CEO resigned. Shortly after, Wales Online reported Hafren Power as defunct.