Better Buildings Challenge Partners strive to decrease portfolio-wide source energy use intensity (EUI) and to increase the percent improvement compared to a set baseline. Angola's portfolio consists of more than 1 building and 70 thousand square feet. Angola has improved energy performance by 3% from a 2012 baseline, making progress towards a goal of 20% by 2026. Energy savings have been achieved by replacing two boilers and a domestic hot water storage tank, installing new bathroom exhaust fans in all units and implementing LED lighting upgrades across all units.