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Overview Overall energy saving index Sustainable development indicators of projects Ecological concepts realization approach Vision of project: Located in the north of Changxindian Town, Hexi Region, Fengtai District, Beijing, and adjacent to Garden Show Park and Yongding River, it is an important part of Hexi Region, Fengtai District, a critical hub connecting Hexi Region and Hedong Region, an important area to be developed in the future and a valuable land that can realize overall planning and unified development in western subregion and “Yongding River Green Ecological Development Zone” in Beijing.
Firstly, total floor area is about 5 km2;
secondly, overall floorage is about 3.3 million m2;
thirdly, population is about 30,000; fourthly, development cycle is 8 years.

Changxindian Eco-city is the first demonstration project of ecological low carbon economy in Beijing, and Vanion is the first model of pushing forward eco-city construction mode by enterprise in China. Indicator system of low-carbon eco-city construction is established, including 19 detailed ecological technical indicators. The project will settle 76,600 persons and provide 47,300 jobs. The total output value will reach RMB 8.6 billion in terms of industrial activities alone.

The planning result of Beijing Changxindian Eco-city won 2009 “Hong Kong Environmental Building Award in Research and Planning” and “2009 ISOCARP Awards for Excellence in the Category “District Planning/Urban Design”. Changxindian Eco-city will break the original real estate development and comprehensively consider regional development, including industrial planning, promotion of localization of employment and life, construction of new energy infrastructure, etc.

Benchmarking project of ecological residence in Changxindian Eco-city planning — phase I “Park Bo Prefecture Years” has obtained three-star green building design identification certificate issued by MOHURD, marking that Vanion Group has not only highly professional planning theory, but also very rich practical experience in the field of low-carbon eco-city construction.; Compared to conventional items: Overall demand for building terminal energy will be reduced by 24.7%; including: Energy sources demands of public buildings are 25.2%, that of residential buildings are 20.7%; renewable energy sources account for 21.7% of building terminal energy total demand, 18.8% of the energy consumption of residential buildings are solved by solar hot water, 23.1% of the energy consumption of public buildings are met by solar hot water, solar film power generation, piles buried ground source heat pump and other systems.; The project aims to build a resource-saving and environmentally friendly ecological community, mainly including strategy research on land, energy, water and material saving, reuse of renewable water, renewable energy, etc. 19 sustainable development indicators that can be implemented are as follows.
Density: 600 people/hectare of residential land; Green environment A. Per capita public green area is 20 m2;
B. green rate>35%; Accessibility of open space: A. Public open space is available for 100% of the population;
B. Distance between public square and park is 400m; Accessibility of the neighborhood center: 100% of the resident population is within 500m walk range; Barrier-free way: A. Index of barrier-free residence sets: 20% of the residential construction conforms to the barrier-free living residence model for people living with wheelchair;
B. The barrier - free facilities rate: Construction rate of barrier - free facilities in public buildings, roads and stations, park squares, and other public facilities is up to 100%; Bus travel: Bus travel proportion (not including walking): After opening line No.M14, bus travel proportion (evening peak) reached bus travel target of 2020 Beijing center city planning; Transportation convenience: A. Distance between 100% of resident population to bus-special line stations in their area <500m;
Distance between 100% of the population to the bus station < 500m; Energy use: 20% reduction in energy use (relative to the current specification); Renewable energy resources: Ratio of renewable energy sources usage to the total building energy consumption>20%; Carbon emission: A. Carbon dioxide emission will be reduced by at least 50% than the conventional scheme, (not including the estimate of carbon dioxide emission reduction due to increased bus using ratio);
B. Carbon neutrality will reach to 35% through woodlot ratios indicator (not including the estimate of carbon dioxide emission reduction due to increased bus using ratio); Herbage plant: Reach to 80% in the entire base; Water consumption: A. Daily per capita water consumption for living: Resident’s indoor domestic water consumption is not more than 110 liters/person/day;
B. Public construction water quota of unit area: decide supply by demand, strengthen water-saving measures, control at a level of 10% lower than the average level of Beijing; Reclaimed water reuse: Reclaimed water reuse rate: 90%; Separate collection of household refuse: A. Household refuse will be reduced from the existing 1kg/person/day to 0.8kg/person/day
B. Reach separate collection of 100% of household refuse; Old village renovation with recycled and local materials in construction: A. Recycled material will be used in the proportion of 10%;
B. Recyclable materials will be used in the proportion of >5%; Old village renovation: Old village will be settled down at the former site or within the planning scope; House for social security purpose: Meet 15% of the government requirement; SME industrial entrepreneurial: A. Enterprise occupancy proportion: 20% of the total building area of industrial development is recommended for SME;
B. SOHO occupancy proportion: 3% of total residential building area is provided for SOHO;; (1)Reduce thermal island effect
Reduce heat island effect of the region through urban ventilation gallery, energy-saving facilities of buildings, increasing roof greening, etc. Compared with conventional schemes, heat island effect value D C of Changxindian Eco-city drops to 0.86 degrees from 1.73 degrees in the daytime and to 0.81 degrees from 1.74 degrees at night.
(2)Build green energy-saving buildings to reduce total demand for energy
The energy demand of residential buildings is down by 20.7% under the existing standard through sustainable architectural design with comprehensive energy saving rate reaching 17.4%. Specific measures are as follows:
Reduce days of using air-conditioning and heating equipment, and energy demand of heating and refrigeration through design of distribution, orientation, structure, mass and façade of buildings; design appropriate lighting level, select low-energy devices and energy-saving apparatus to reduce electricity demand; guarantee natural ventilation, minimize internal heat gain, combine green space and reduce heat island effect; install household separate tubular solar collector assisting electrical heating.
(3)Use renewable clean energy, improve resource usage efficiency, and reduce carbon dioxide emission
(4)Save water resource, complete rainwater collection and utilization system, increase proportion of reclaimed water
Limit per-capita water consumption to be 110L/person/day through calculation, plan rainwater collection stagnation points and rainwater collection facilities of residence in the region, and reduce rainwater runoff to improve lack of ground water resource. In addition, increase proportion of reclaimed water resource and cut down demand for tap water through stage treatment of sewage and waste water to reduce damage to natural resources.; Optimize and balance environment, society, economy and other elements in the city with the concept of comprehensive urban development to create eco-city that can develop in a sustainable way.

Develop eco-city with international standard and leading the world by referring to study on the world’s best cases and relevant policies and regulations of the state and Beijing, and in line with quantitative indicators of sustainable development.

Establish a development pattern that integrates residence, industry, business center, eco-park and scenic spot beyond traditional tense “Development” and “Resource Environment” to make urbanization engine and motive power of sustainable development of local economy.