A Joint US-China Demonstration Energy Efficient Office Building
In July 1998, USDOE and China's Ministry of Science and Technology (MOST) signed a Statement of Work to develop a demonstration energy-efficient office building and demonstration center in Beijing that will eventually house the Administrative Center for China's Agenda 21 (ACCA21). The statement calls for the Chinese side to be responsible for the basic construction of the 13,000 m2 9-story building, the US side for technical assistance and the incremental costs of the energy efficiency improvements, and the joint establishment of a Demonstration Center to provide outreach and exhibit energy-efficient building technologies.
The US technical team made several trips to China to meet with ACCA21 and the design team, and used the DOE-2.1E simulation program to analyze the energy performance of a preliminary building design and study alternative designs and energy-efficient strategies. A feasibility study completed in September found the largest and most cost-effective savings potentials in reducing cooling and lighting energy use, and identified eight generic measures in lighting, windows, daylighting, and HVAC systems and controls. Following these and other recommendations from the US team, the design team produced a schematic cross-shaped building design that, based on the DOE-2 analysis, lowered total energy use by 40%compared to standard practice.
While the design and analysis were underway, a task force called ACCORD21 (American-Chinese Council Organized for Responsible Development in the 21st Century) was formed in April 1999 under the leadership of NRDC to solicit support and contributions from U.S. industry, A/E firms, and universities. Two design workshops were held, first in Pittsburgh and then in Beijing, that brought together the Chinese and US project participants and produced further refinements and energy-efficiency improvements to the building design. As of June 2000, the authors are completing the final energy analysis and selection of energy-efficiency measures. Construction is expected to begin in the early part of 2001.