Centrica Plc is an energy and services company. The Company's segments include Centrica Consumer, Centrica Business and Upstream. Its Centrica Consumer is engaged in supplying gas and electricity to residential customers in the United Kingdom (UK), and to residential and commercial and industrial customers in the Republic of Ireland; and the installation, repair and maintenance of domestic central heating and cooling systems and related appliances in the UK and the Republic of Ireland, and the provision of fixed-fee maintenance/breakdown service and insurance contracts in the UK. Its Centrica Business is engaged in supplying gas and electricity and provision of energy-related services to business customers and trading counterparties in the UK. Its Upstream is engaged in production and processing of gas and oil and the development of new fields, principally within Spirit Energy, to maintain reserves in the UK and Europe and offering power solutions from nuclear assets.