District Energy - 2008 First Quarter

WHO SHOULD ATTEND THE WORKSHOPS AND CONFERENCE?
College, university, municipal, industry and government agency energy professionals seeking practical
and innovative energy solutions

Planners, architects and engineers involved in real estate and building energy systems

Consultants, manufacturers and service providers seeking insight to
institutional opportunities
Energy professionals involved in large central plants, utilities and
environmental compliance

Policy and energy efficiency advocates interested in successful approaches to complex issues

Register at www.districtenergy.org/calendar.htm.

TECHNICAL TOURS INFORMATION

NORTHWEST SCIENCE BUILDING The Northwest Science Building, a laboratory facility with 210,000 sq ft above ground and 260,000 sq ft below ground, was recently constructed for collaborative research and teaching along with office space, classrooms, seminar rooms, collection space, teaching laboratories, and a district chilled water plant and electrical substation.

The underground chilled water plant is designed for up to five chillers with a total installed capacity of up to 12,500 tons. Three 2,500 ton electric centrifugal chillers were installed during initial construction. The plant interconnects with Harvard’s existing chilled water distribution piping network and is located approximately 67 feet below grade.

The electrical substation, the newest of several 13.8kV
switching/distribution substations that supply Harvard’s
electric microgrid, is located approximately 43 feet below
grade.

BLACKSTONE STEAM PLANT The Blackstone Steam Plant houses four water-tube, utility grade boilers – two 1930 vintage 100,000 pound per hour boilers and two 1962 vintage 200,000 pound per hour boilers – all operating at 400 psig steam pressure and all dual-fuel capable (natural gas/fuel oil). Harvard purchased the plant in 2003 from the local utility. There is a project underway to replace one of the 1930 boilers with a new 150,000 pound /hour boiler (scheduled for commissioning in January 2008). To enhance overall plant efficiencies, cogeneration will be added.

46 BLACKSTONE STREET

The three-building complex at 46 Blackstone St, which now houses University Operations Services, has earned Platinum LEED rating for a renovation. Adjacent to the Blackstone Steam Plant near the Charles River, 46 Blackstone’s century-old structures are now a showcase of sustainable building practices.