Greenest energy companies

Assessing the green credentials of energy companies in the UK involves considering various factors related to their environmental impact, renewable energy generation, carbon emissions, sustainability efforts, and more.

  1. Renewable Energy Generation: One of the key indicators of a company’s green credentials is the proportion of its energy production that comes from renewable sources such as wind, solar, hydro, and biomass. Companies with a higher share of renewable energy generation are generally considered more environmentally friendly.
  2. Carbon Emissions: Companies’ carbon emissions, including both direct and indirect emissions, are significant in assessing their environmental impact. Lower carbon emissions are indicative of a company’s commitment to reducing its contribution to climate change.
  3. Energy Efficiency: Companies that prioritise energy efficiency in their operations, such as using advanced technologies to reduce energy consumption, demonstrate a commitment to sustainability.
  4. Investments in Clean Technologies: Companies that invest in research, development, and implementation of clean technologies, such as energy storage, smart grids, and carbon capture, showcase their dedication to innovation for a greener future.
  5. Corporate Social Responsibility (CSR): Companies that engage in various CSR initiatives, such as community engagement, environmental conservation programmes, and support for local communities, demonstrate a broader commitment to sustainability beyond their core operations.
  6. Transparency and Reporting: Energy companies that openly disclose their environmental performance, goals, and progress towards sustainability targets tend to be more accountable for their actions.
  7. Membership in Industry Initiatives: Membership in industry groups, such as the RE100 (committing to 100% renewable energy), can indicate a company’s commitment to renewable energy adoption.
  8. Regulatory Compliance: Companies that adhere to environmental regulations and strive to exceed these standards exhibit a dedication to environmental responsibility.
  9. Green Certifications and Awards: Recognition through certifications like ISO 14001 (environmental management) and various green awards can showcase a company’s efforts in sustainability.
  10. Diversification of Energy Portfolio: Companies that have a diverse energy portfolio, with a mix of renewable sources, are often better positioned to adapt to changing energy landscapes.
  11. Support for Energy Transition: Companies that actively support the transition to clean energy, both within their operations and through advocacy, demonstrate a commitment to a sustainable future.

It’s important to note that the energy landscape is rapidly evolving, and the green credentials of companies can change over time. I recommend checking with up-to-date sources like environmental NGOs, sustainability reports, energy market analysis reports, and governmental agencies for the most current information on the green credentials of energy companies in the UK.

Energy from renewables

British Gas48%


British Gas28%


British Gas2%

Natural gas

British Gas20%

Other fuels

British Gas48%