April 2025

Additionality Statement

The government already has a plan to deliver a Net Zero electricity grid by 2035. That plan is underpinned by a series of subsidies, such as the Renewables Obligation (RO), Contracts for Difference (CfD) and the Feed In Tariff (FIT). Both as a bill-payer and a taxpayer, you contribute towards that goal regardless of what supplier or tariff you choose.

With a fixed tariff from So Energy, you choose to go above and beyond those plans and do more to reduce greenhouse gas emissions. We do this in several ways.

Subsidy Free Renewables

So Energy supports older wind farms that have seen their government subsidies run out. We have stepped in to buy the power from these wind farms and keep them running through a Power Purchase Agreement (PPAs).  

Currently we support the following wind farms:

  • Fullabrook, Devon - 22 turbines generate enough renewable energy to power around 42,100 homes annually, equivalent to 30% of Devon’s households, while saving over 180,000 tonnes of CO₂ each year
  • Mynydd y Betws, Wales - 15 turbines generate enough green energy to power around 22,425 homes annually, offsetting over 94,000 tonnes of CO₂ and revitalising an area once dominated by a coal mine
  • West Durham, Co. Durham - 12 turbines generate enough renewable electricity to power around 15,300 homes annually, offsetting over 65,000 tonnes of CO₂—equivalent to taking more than 17,400 cars off the road each year

Together, these wind farms generate [101GWh] of power a year and saving 339,000 tonnes of CO2 per year. That’s about 25% of the total energy our fixed tariff customers use. The balance is supported by Renewable Energy Guarantees of Origin certificates (REGOs), which suppliers must buy if they want to certify their tariffs as green under Ofgem regulations.

We are planning to strike PPAs with more wind farms next year, growing our subsidy-free renewable portfolio.  

As a So Energy customer, you also get to vote on what kind of renewable generation we support through REGO certificates each year. Click here to cast your vote.

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