On the 28th of April 2004 Atlantic became part of the SSE Energy Group.
SSE is a FTSE 100 company and one of the largest integrated electricity and gas companies in the UK. Incorporating the supply businesses of Scottish Hydro, Southern Electric, SWALEC, Atlantic, SSE and SSE Airtricity they supply over 10 million customers throughout Scotland, England, Wales and Ireland. SSE is a full service energy provider with more than 50 years of experience in the generation, transmission, distribution and supply of energy.
SSE is independently-recognised as the best energy supplier for customer service and is the UK's leading generator of electricity from renewable sources.
SSE produce more renewable energy than any other energy company in the UK (as of the 16th of November 2011) through wind and water, and help customers do the same through their micro generation tariffs and products.
SSE Energy, in December 2008, reached the nine million customer mark. This comprises 5.53 million electricity customers and 3.47 million gas.
SSE is the UK's largest non-nuclear electricity generator with over 11,000 megawatts of capacity from the most diverse portfolio of power stations. It is also the leading generator of electricity from renewable resources. Through its renewable development division, it is involved in the development of new renewable energy projects covering wind, wave, tide, and hydro electricity.
With its main base in Perth SSE Energy has offices based around the UK and provides a local presence to its acquired customer base.
SSE Energy is a vertically integrated utility company in that they own not just the supply side of the business but in Scotland also the distribution side of the business and throughout the UK a number of strategically placed generation plants.