Certified B Corporation

We’re proud to be one of the 1,000 UK B Corps committed to environmental and social justice.

What is a B Corp?

Certified B CorporationsTM (B CorpsTM) are companies that use their power to build a more inclusive and sustainable economy. Following rigorous assessment of our social, environmental and governance standards – including energy supplies, waste and water use, worker compensation, diversity and corporate transparency – we became a B Corp in 2020 with a score of 110.8 – the highest scoring renewable energy company in the UK B Corp community at that time.

For the last two years, we have also been named a ‘Best for the World’ B Corp for our positive impact on the environment, meaning we scored in the top 5% of all global B Corps in this category.


We are one of the UK’s first mission driven businesses, founded nearly 30 years ago to help people power the UK’s transition to clean energy, reduce carbon dioxide pollution and tackle dangerous climate change.

As well as creating value for shareholders like other businesses, we also prioritise the interests of those affected by our business operations, from the towns and villages who host our clean energy projects to the wildlife which frequents them. It is therefore particularly important for us as an ethical business to undergo rigorous external assessment of our performance on governance, workers’ rights, how we treat our customers and the wider community and, of course, the environment.

We have long been committed to purpose beyond profit and now, with the support of 7,000+ shareholders, we have embedded this commitment in our company articles.

Read about our progress in 2022