AFE May/June 2012 : Page 24THE CURRENT STATUS AND TRENDS IN ENERGY-EFFICIENT & SUSTAINABLE FACILITIES ■ ■ ■ ■ ■ ■ ■ ■ Solar for 8 percent of electrical In-fl oor hydronic heating Bamboo fl oors Natural ventilation in most rooms Windows: wood casement 23 percent transmittance (east, west and south) 40 percent (north) Solar gain of 0.23 T5 and T8 lighting Th ese energy features resulted in an energy savings of 47.8 percent and cost savings of 53.7 percent compared to ASHRAE 90.1 standards. ■ TIAA-CREF Headquarters Th e last building, TIAA-CREF head-quarters, represents a good example All Government Building Personnel and Contractors Will Need to Be Certified Soon! Sign up for our new preparatory course: Fundamentals of Facility Management For Government High-Performance Buildings This course is designed to provide energy management, sustainability, and operations and maintenance training for government personnel and contractors operating government high-performance buildings. The course will equip these professionals with comprehensive, up-to-date knowledge needed to operate buildings in accordance with industry best practices and procedures; reduce energy consumption and costs; improve the working environment; and minimize the environmental impact of government facilities. COURSE SCHEDULE YOU CAN EARN > High-Performance Rating Systems and Energy Auditing 3.2 CEU / Scott Dunning, Ph.D., P.E., C.E.M. 32 PDH > Improving Maintenance and Operating Procedures for Lighting Scott Dunning, Ph.D., P.E., C.E.M. > Operating Boilers, Chillers, Motors and Drives for High Performance Larry Ross, CPE, CPMM > Operation and Maintenance Practices for High-Performance Government Buildings Mike Cowley, CPMM > Retrocommissioning Presented by Michelle Stezelberger, P.E., CPE of a making the best out of a forced retrofi t. Th e building had two 1,000-ton chillers to handle a peak load of 1,400 tons. One chiller failed. Th ey were both replaced with a 1,000-ton chiller, a 900-ton chiller, rooft op ice storage (600 ton hours), new advanced controls and new cooling towers. Ice is made at off -peak hours and used during peak hours. Th is shift ed the peak electrical consump-tion to the night (when electricity is less expensive) and signifi cantly reduced demand. Th e retrofi t reduced CO 2 emis-sions by 6.1 million pounds/year and resulted in savings of $765,000/year. Th is produced a 25 percent rate of re-turn on the project (roughly a four-year payback period). In summary, sustainability and energy efficiency go hand in hand and have risen to an important level in building and remodel design, construction and operation. Energy-efficient design in new or remodel construction and energy audits in ex-isting buildings can provide substan-tial savings. These savings can fund resource-efficient sustainable features. Many important sustainable features (water effi ciency, run-off control, mate-rial recycle and waste minimization, daylighting, etc.) can be implemented with little additional cost and in some instances cost saving. When coupled with modern energy-effi cient equip-ment and controls, the modern high-performance building can be consid-erably less expensive to operate and provide a large reduction in cost over the lifetime of the building. FEJ References: Leadership in Energy and Environmen-tal Design Program, U.S. Green Building Council, Washington, D.C. 2 Our Common Future, Brundtland Com-mission, United Nations, New York, NY (1987) John V. Massey, PhD is the chair of the Department of Engineering Technology of the California Maritime Academy, Vallejo, California. 1 LOCATIONS/DATES > St. Louis, MO / August 13-16, 2012 > Washington, D.C. / September 10-13, 2012 DISCOUNT FOR AFE MEMBERS Learn more about AFE Certification www.afe.org/certification certification@afe.org // 571.203.7171 24 May | June 2012 ■ Facilities Engineering Journal ■ www.AFE.org Publication List Using a screen reader? Click Here |
