Bulb is a renewable energy retailer, offering its customers affordable renewable energy backed by excellent service and help in reducing energy usage. They supply all their members with 100% renewable electricity and 10% green gas. When you switch to Bulb, they make sure that for every unit of electricity you use, a unit is produced and put on thegrid by a renewable source like Oak Grove Solar Farm in Monmouthshire. In addition, 10% of their gas comes from biomethane. That’s gas produced from organic matter like sewage and manure – which is then reinjected onto the grid (minus the smell).