Energy-saving reconstruction of German buildings to attract real estate companies to participate

The future of the house will look like? The German real estate company Vivawest Group built a "Future House" in Bottrop, Germany. Apart from the intelligent control of all the houses in the house, the whole house utilizes a clean energy system that provides energy to meet all the needs of households. Real estate companies We will give full play to the energy saving of a house built in the 1980s and make full use of the solar energy, geothermal energy and other resources available to the house so as to ensure that this "future house" will achieve energy self-sufficiency.

This is the only Vivawest Group to own a self-sustaining home and is the first pilot of the real estate business in Bottrop. In order to encourage residents to adopt clean energy, Bottrop municipal government lists a list of housing improvements, the completion of the designated energy-saving residents can get financial support from the government. In 2016, Bottrop received the title of "Creative City of Germany" and the government of the Municipality of Rhodesia, where Bottrop is located, has provided a special fund of € 20 million for urban construction.

Through housing renovation, Bottrop, a traditional industrial city in the Ruhr industrial area, opens the way for an innovative energy restructuring. Bottrop Mayor BerndTischler told the Economic Observer, "Each project has a different mode of funding. On average, 60% of the funds for renovation are made by the citizens themselves and 40% are funded by the government."

In the past five years, nearly 1,500 old residential buildings have been transformed. The government's policy support for energy-saving renovation has attracted the participation of real estate enterprises. BerndTischler said, "It is not possible at this moment to transform all our homes into homes for the future, and after all, we do not have that much money, and the more effective way to go is to take a small step toward the overall goal. By 2020, the carbon dioxide level has been reduced by half compared with 2010, and the city's carbon dioxide emissions have been reduced by 38.1% over the past five years. "

In fact, in Beijing, it has also experienced four years of old residential transformation, through the whitewashed coating, transformation of residential heating measurement, etc., to achieve the effect of energy conservation, and let the old community to achieve cool in winter and warm in summer Living experience. This is a comprehensive renovation project for old residential areas initiated by the Beijing Municipal Construction and Construction Commission. In the past four years, more than 60 million square meters of houses and buildings were completed retrofitting their seismic retrofits and energy-saving projects with financial support from the tertiary, central and municipal governments.

Unlike Beijing, Bottrop aims to reduce carbon dioxide emissions by encouraging households to adopt clean energy. It is worth noting that this city-wide clean energy innovation movement is a bottom-up reform initiated by the local industrial federation, not the government agency. BerndTischler said: "After 80 industry-run industrial alliances organized an innovative city competition focusing on energy conservation and utilization in the city, after two rigorous campaigns, Bottrop was named an innovation city and subsequently as an innovative city The state government, the federal government's support. "

The construction of innovative cities involves a number of areas. Among them, the problems of urban renewal, intelligent transportation and the utilization of clean energy belong to different departments. Hennina Ellermann, an expert from the German Federal Agency for Foreign Trade and Investment, said: "In order to modernize the city, intelligence is just a solution. The purpose of the tool is to make our lives comfortable and convenient. All intelligent technologies should be done around this goal In Germany, there is not a single agency in charge of smart cities. Each government department has its own project budget. This requires cross-departmental cooperation. Bottrop is doing very well in this respect. First, we clarify our common purpose and then move on Different departments to play director, work together, this is the need for other cities to learn. "

Bottrop is located in northwestern Germany, was originally a little-known town, but after the development of the coal industry in the last century, tens of thousands of migrants came here looking for job opportunities, the coal industry has become a pillar industry Bottrop. At that time, the North Latvian government and the German federal government to support the development of coal mining enterprises, subsidies have been paid to the enterprise, so far this subsidy has not been interrupted, but changed the use of coal mining has been supporting the development of subsidies, and now become shut down coal mines , Training workers re-employment subsidy funds.

In May of this year, BerndTischler briefed the Chinese Minister of Environmental Protection about Bottrop's innovative measures. According to Bernd Tischler memories, the Minister of Environmental Protection has raised several issues, one is how to get the public support for the public to actively participate in specific projects, another impressive issue is that Ruhr industrial zone in the process of transition, Need to shut down a large number of coal mines, how to solve the problem of employment of workers.

BerndTischler said that "Bottrop in the energy transformation has given a series of policy support for energy conservation and utilization, which has attracted a number of clean energy-related enterprises to settle down, providing employment opportunities. At the same time, the government will fund the training of workers, All of which require full communication with the public, repeated answers to their doubts, a blueprint for the future development of the city and confidence in them. "

Bottrop has been gradually shutting down its coal mines since 2005. Currently, only two coal mines remain in Bottrop, which used to be the pillar industry of the coal industry. According to the government plan, the two coal mines will also have coal mines before 2018 One after another shut down. A huge environmental restoration project started as a result of industrial enterprises' extensive development of polluted cities. Next to the Emscher, the largest sewage treatment plant in Germany deals with what is once the dirtiest river in Europe, , While dealing with the surrounding domestic sewage, industrial wastewater. The Amherst River flows through the Ruhr industrial area into the Rhine, and for more than a century, cities and businesses have been dumping rubbish on the river.

19 cities in Germany and many companies work together to form the "Amherst cooperative" undertaking the reconstruction of the Amheim, the largest sewage treatment plant in Germany as part of a river renovation project, Professor Karl-GeorgSchmelz Said that "the sewage treatment plant is expected to be self-sufficient by next year's electricity generated by means of sewage treatment, wind power generation and etc. This project provides employment for nearly 225 people."

Two weeks ago, Bernd Tischler expressed his wishes to the Chinese Ministry of Environmental Protection. "I hope to strengthen cooperation with China. On the one hand, I hope relevant Chinese enterprises will settle in Bottrop and join in the innovation construction of the city. On the other hand, I hope to find similar Innovative city interoperability. "

BerndTischler believes that "a combination of industry, research and policy, combined with public participation and support, can bring about the success of a city's innovation. Although each of these areas has its own interests in mind, the goals are the same and the people want to improve Quality of life. Researchers want to experiment with their scientific achievements. Industrial companies, of course, want to make money. Their business model can be copied to other regions if Bottrop succeeds, but the goal is to reduce carbon emissions, develop clean energy and improve the quality of the environment "


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