 NEWTON, Mass.--BUSINESS WIRE--Office Properties Income Trust Nasdaq: OPI today announced that it received the 2021 ENERGY STAR Partner of the Year Sustained Excellence Award for its outstanding efforts in energy management. This is the fourth consecutive year that OPI has achieved Partner of the Year recognition and the second year OPI has earned the Sustained Excellence designation in the Energy Management category. Currently, 46 buildings in OPIs portfolio are ENERGY STAR certified. The 