Since 2003, North Carolina Agricultural and Technical has reduced energy use by 21 percent.[39] According to research conducted by the university, the energy efficiency measures in place inside the 123 buildings on the campus have saved enough energy to meet the power needs of 760 households for a year.[39] In the 2011–12 fiscal year alone, a 32.5 billion BTU reduction in energy helped the university avoid $386,274 in costs.[39] Under the university's Strategic Energy Plan, North Carolina Agricultural and Technical has implemented energy efficiency measures such as: comprehensive energy audits to identify improvement needs; development of a retro-commissioning process for existing buildings; energy-efficient lighting retrofits throughout the campus; and the development of green network strategies.[39]