Smart Energy Services, a business unit in ESB provides consultancy, capital funding, energy management services and implementation of energy projects for businesses who are large users of energy. The area was developed to meet the growing demand from large businesses for sustainable solutions and reductions in energy costs, especially those companies who have more energy-intensive technology and production output.

Smart Energy Services deliver a range of funded energy solutions to dramatically lower energy costs and carbon emissions for large businesses. This range of tailored funding solutions allow organisations to improve energy efficiency with minimal financial investment, realising energy cost savings and a reduction in their carbon emissions. The risk of implementing these energy efficient technologies is greatly reduced as ESB assumes the responsibilities of management, maintenance and ownership of the solution.