 HOUSTON--BUSINESS WIRE-- ENGIE--ENGIE North America announced today that it has solidified its relationship with Howard University, one of the nations premiere HBCUs, by executing a long-term agreement for the design, construction, operation, and maintenance of a new central utility plant on Howards campus located in Washington, D.C. The new central utility plant will provide both electric and steam services for buildings on campus. Under this agreement, ENGIE will design and construct the new plan 