The United States Postal Service’s (USPS) Morgan Processing and Distribution Center (P&DC) is one of the largest mail processing facilities in the U.S. Built in 1933, it was designated an historic landmark in 1986. With 1,600 windows and 2.2 million interior square feet, it also boasts the largest green roof in New York City (2.5 acres) and one of the largest in the country.
Seasonal fluctuations in mail volume were creating overloads on the building electrical system. H2M was brought in to assess the problem, develop alternative solutions and assist the USPS in implementation. The USPS was facing stiff penalties from the electrical utility for the seasonal loads. Conducting an intensive electrical building survey, H2M developed an alternative solution that involved a reduction in electricity used for air conditioning chilled water. Diverting that additional power to other transformers and switchgear alleviated loads from the overloaded switchboards. The outcome was a leveling of loads which avoided the seasonal fluctuations, allowing the postal service to stay on schedule processing and delivering the mail.