In recent years, the Energy Group has always listed environmental protection as the top priority of the Group's work, increasing investment in environmental protection, vigorously transforming environmental protection operation facilities, accelerating the development of clean energy comprehensive utilization projects, and promoting the city's economic and social scientific and green development.
With the continuous improvement of national, provincial and municipal environmental protection standards, Energy Group has implemented environmental protection upgrades to all its affiliated boilers and has now fully met the current environmental protection emission standards. This year, the group will invest 300 million yuan to complete the desulfurization, denitrification, and dust removal upgrade of the remaining boiler facilities. By the end of the year, all coal-fired boilers in the urban area of the group will complete the task of ultra-low emissions. At the same time, in order to reduce coal consumption and reduce flue gas emissions, the group has also eliminated 25 coal-fired boilers, a total of 250 steam tons, through internal heating resource regulation, clean energy replacement, and new high-efficiency pulverized coal furnaces. This year, all coal-fired small boilers of less than 10 steam tons will be phased out, and low-efficiency coal-fired boilers (a total of 260 steam-tons) will be replaced. By the end of October, all the group's low-efficiency small-tonnage boilers will be "zeroed." After the completion of all the ultra-low-emission transformations and the elimination of low-efficiency small-tonnage boilers, a total of 354.6 tons of smoke and dust, 1870 tons of sulfur dioxide, 140,000 tons of carbon dioxide, and 1963 tons of nitrogen oxides can be reduced annually.
While accelerating the transformation of ultra-low emissions, the group has also accelerated the use of natural gas, made full use of the development advantages of integrated gas and heat, and vigorously promoted the implementation of natural gas “triple supply”, “two combined supply” and “coal to gas” projects. Constantly increase the proportion of natural gas in urban central heating and gradually reduce the amount of coal used. At present, a total of 14 natural gas non-civilian heating projects and 10 natural gas civil heating projects, including Qingdao North Passenger Station, Metro Control Center, and Century Excellence, have been completed, totaling 4 million square meters; 4 (200 steam) units will be completed this year. Ton) boiler "coal to gas" transformation. As of the end of 2016, the group's total central heating area reached 100 million square meters, an increase of 20 million square meters compared with 2013, but the raw coal consumption was basically flat.
In addition, the group vigorously promotes the combined development of a variety of clean energy sources including air sources, sewage sources, geothermal sources, solar energy, and biomass. This year, we will actively accelerate the preliminary work of 13 clean energy projects such as urban thermal power. We will start and build 9 clean energy projects including Huangdao Hengyuan Thermal Power Biomass Boiler and Happy Binhai City Wastewater Source. The total area of clean energy heating before the end of the year Will reach more than 10 million square meters. In the next step, the group will seize the opportunity of clean energy development policy, promote comprehensive utilization of clean energy according to local conditions, accelerate the increase of the proportion of clean energy, and realize the green development of centralized heating in our city.