BPA was established by the Act of Parliament, BPA Act 740, 2007 with a mandate to plan, execute and manage the Bui Hydroelectric Project which includes:

• Construction of dam and power house, installation of a 400MW generating plant and other infrastructure forming an integral part of the project.
• Generation of electrical power for general industrial and domestic use.
• Construction of a transmission system linked to the national grid.
• Supply of electrical power to certified and licensed utility companies.
• Promotion of activities consistent with the provision of facilities for multipurpose uses such as agro businesses, fisheries and tourism.