Ofgem is the Office of Gas and Electricity Markets, the regulator for the electricity and gas markets in Great Britain. Established in 1999, its main role is to protect the interests of consumers by promoting competition and ensuring that energy supply is reliable and affordable. The organization oversees the operation of energy companies, sets price controls, and enforces regulations to maintain fair practices. Ofgem also works on initiatives to support the transition to a low-carbon energy system, helping to address climate change while ensuring energy security for all consumers.