Buildings for a Better Future
Can sustainable construction help China go greener?
It is projected that over the next few years China’s urban population will grow by 250 million – on average these city dwellers presently use three times more energy than their rural counterparts. Soaring demand for metropolitan living and working space is fueling a booming construction sector, and rising incomes and living standards mean that electric appliances are proliferating like never before. At the turn of the millennium, China consumed about 8% of the total energy used in the world, more than any nation except the United States – at current rates this figure will double by 2020. This is a prospect that is causing serious concern, both in China and the rest of the world.
China has relatively few fuel resources, and burning coal – the country’s most abundant fossil fuel – has already polluted much of the country and contributed to the acid rain that now falls in many Chinese cities. China’s State Environmental Protection Administration (SEPA) estimates that damage from pollution now totals nearly 10 percent of China’s GDP.
If China follows the historic trends of the West as it develops, residential and commercial building energy consumption could soon skyrocket to account for a third of the nation’s total energy use. If coal continues to be China’s fuel of choice, and China’s buildings continue to multiply and consume energy as they do now, the resultant increase in the country’s carbon dioxide emissions will dwarf any reductions achieved elsewhere. The question is, can anything be done to ameliorate or avoid this nightmare scenario?
In China’s current Five Year Plan (2006-2010), the Chinese government has turned away from growth-driven policies toward sustainable development, demonstrating the desire of the country’s leaders to address the country’s environmental problems. One of the key objectives of the plan is to reduce the amount of energy required to produce a unit GDP by 20 percent, and China’s total discharge of carbon dioxide by 10 percent.
As the country urgently needs to erect 100 million more homes, and huge numbers of office blocks are in the urban pipeline, it’s obvious that new construction will have to go green in a big way if these ambitious targets are going to be realized. With approximately 2 billion square meters of new Chinese floorspace added last year alone, the challenge is daunting.
Green building in China, as in other countries, is still in its infancy, and faces many obstacles. To most real estate developers caught in the construction gold rush, the game is about erecting second-rate buildings as quickly and profitably as possible. Although China has 11 “eco-city” projects under construction and 140 building projects, few foreign experts feel these projects would pass a genuine international green test – involving low energy use, low cost, recycling water systems and “intelligent” integrated design and materials.
Nevertheless, the trend toward sustainable buildings in China is clear and irreversible. In November 2005 the U.S. Green Building Council (USGBC), an American NGO, presented awards to ten Chinese real estate developers and government leaders for their “pioneering work in transforming the world’s largest building industry.” The developers, representing some of China’s largest construction companies, had one thing in common: they were the first private sector companies to pursue the USGBC’s Leadership in Energy and Environmental Design (LEED) certification.
The LEED Green Building Rating System is the internationally accepted benchmark for the design, construction and operation of high performance green buildings. It promotes a whole-building approach to sustainability by recognizing performance in five key areas of human and environmental health: sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality.
George Bialecki, founder of the American NGO Alternative Energy Builders (AEB), and developer of the comprehensive Home Biology 101™ sustainable housing system, feels energy efficiency is the area where green homes and offices can bring the biggest benefits in China. He comments, “Now there is a debate over which causes more pollution – a home or a car. Even applying conservative estimates and using a ratio of 1:1, we can see that if China’s next 100 million homes are green, with drastically reduced energy requirements, then we are preventing a pollution increase equivalent to that caused by 100 million new cars. This, in itself, would be an incredible achievement.”
As part of a project authorized by China’s Ministry of Construction in 2003, the AEB is currently involved in construction of Future House USA, a showcase sustainable house being built on a site outside Beijing, along with eco-houses from seven other countries.
It’s too early to say whether sustainable construction in China will help the Chinese government meet its laudable environmental goals, or even how much business that will ultimately mean for Western companies. Changing ingrained behavior is always slow, and China doesn’t yet have the green supply chain of parts, materials and expertise required. Despite the many problems to be faced, however, it is hoped that Chinese developers will gradually come to appreciate that sustainable construction is a true win-win proposition, and that making money and saving the planet don’t have to be mutually exclusive.
Images: Daniel Allen, Alternative Energy Builders