Promote residents coal to cleaner energy is \"Beijing 2013-2017 clean air action plan (hereinafter referred to as the\" empty plan \") important task, is the important measures to further promote the construction of ecological civilization of the municipal party committee.For empty action final year in 2017, Beijing municipal bureau of statistics, the resident to clean coal energy effect in the whole city was carried out by the special research.Research results show that the modified energy conservation effect is obvious, the energy structure optimization, improve air quality, and residents' quality of life improved.  

A basic situation, residents coal to cleaner energy  

Look from the city, the empty plan requirements by 2017, the city's total coal in 2012 than cut 13 million tons, controlled within 10 million tons;Coal for energy consumption dropped to below 10%, increased to more than 90% of the total energy consumption.In 2016, the city's coal consumption of 2016 tons, which accounts for 8.7% of energy, overfulfilled goals ahead of time.  

Look from points area, the empty plan requirements by 2015, urban core coalification is realized, suburb areas coal quantity reduction.District leadership responsibilities and division of labor, the relevant departments to actively cooperation, establish a system parameter, quantitative, refined coal clean energy solutions, all finish the project goals.Data show that the relevant departments, what city project is realized according to the requirement in 2015;The abundant sihai plains in early 2017 has basic coalification is realized.In rural areas, only in November 1, 2016, 663 new village of Beijing, a total of 227000 households use clean energy for heating, coal to electricity 574 village, 198000.In 2017, plans to complete 700 villages of coal to clean energy transformation.  

Second, the coal to cleaner energy work results  

(a) transformation way and varied  

The study involved 16 area 536 households, 149 city residents district six units, 387 rural residents.Research object from residential coal clean energy transformation time mainly concentrated in the 2015-2016, 2015 years, 97, 387, 2016.In this research households, a total of 275 households using coal air source, ground source heat pump mode, accounting for more than half of the total number of households, 120 of coal to gas, 22.4%, regenerative electric heaters accounted for 18.5%, the remaining 7.8% for electric heating boiler, and other ways.  

Figure 1 survey of households in the transformation way  

(2) the energy saving effect is obvious, 10% worth heating energy consumption fell by more than 10%  

Research results show that, in heating season, the modified 2.4 worth of energy consumption of 2.4 tons of standard coal (according to the equivalent heat value calculation, the same below), decreased by 14.3% before modification, 2.4 worth of energy saving amount to 0.4 tons of standard coal.Coal to clean energy, a total of about 227000 households in 2016, according to this standard, the annual energy saving of up to 91000 tce, pull down the city's residents live coal consumption of about 3%.  

See areas.Urban residents heating season before modification average household consumed 4.0 tons of coal equivalent to 2.9 tons of standard coal, modified 4.0 worth of electricity 9564.9 KWH, equivalent to 2.6 tons of standard coal.After transforming energy consumption by 7.1% than before.  

Suburban residents heating season before modification average household consumed 3.9 tons of coal equivalent to 2.8 tons of standard coal, 2.3 worth of energy consumption is equivalent to 2.3 tons of standard coal, after modification.After transforming energy consumption by 15.8% than before.  

The way of transformation.Regenerative electric mining heater respectively before and after the transformation energy consumption 2 tons and 1.6 tons of standard coal, energy consumption dropped by 17.9%.Suburban fell to 23.5% of urban energy consumption, energy consumption dropped by 6.5%.  

Way of heat pump heating energy consumption before and after the transformation, respectively 3 tons and 2.5 tons of standard coal, energy consumption fell 17.6%, and the regenerative electric heater close to.Ground source and air source heat pump in the outskirts are more widely application, obvious effect of energy conservation, energy consumption fell by 20.1%, for optimal in four ways.Of energy consumption reduction in urban areas is below regenerative electric heaters, at 11.5%.  

Research method of gas heating in homes in the suburbs, the energy consumption before and after modification were 2.9 tons and 2.5 tons of standard coal, energy consumption reduced to 13.5%, saving energy level is higher than the regenerative electric heaters, below the heat pump.  

Overall, the regenerative electric heaters, heat pump heating and gas heating energy saving effect are reached.The regenerative electric heaters and air source heat pump better overall level of energy conservation, natural gas energy consumption decreased slightly lower proportion.  

(3) the energy structure optimization, clean energy accounted for more than 50%  

2016 city residents living consumption of coal, 2.406 million tons, 22.1% lower than in 2013.Consumption power 19.54 billion KWH, up 24.5% than in 2013;Consumption of 1.282 billion cubic meters of natural gas in 1.282 billion, up 7.7%.From the energy structure in 2016, the city residents living consumption in coal accounted for 14.1%, 3.5% lower than in 2013.Clean energy (electricity, gas, heat) combined accounted for 53.0%, 2.3% higher than that of 2013.  

(4) to improve air quality  

Beijing 2016 fine particulate matter (PM2.5) annual average concentration of 73 micrograms per cubic meter, 22.6% lower than in 2013.The concentration of sulfur dioxide (SO2) in the city is down to 10 micrograms per cubic meter, and the ratio fell to 62.3% in 2013.Calculated at 1% sulfur content, one ton of civilian coal combustion will produce 16 kg SO2, 1.5 kg of soot.In 2013-2016, the residents live in 684000 fewer tons of coal, reducing SO2 emission of 10944 tons, 1026 tons of carbon, contributed a lot to the improvement of air quality in Beijing.With the heating season approaching, the effect of coal to cleaner energy work will be further verified.  

Figure 2 SO2 concentration and the city and district 2013-2013  

Unit: micrograms/cubic meter  

The quality of life (5)  

Residents generally reflect heating temperature significantly increased after the modification, more clean living environment, quality of life was improved.  

1. The heating temperature rise significantly  

Heating after transforming the average temperature of 19.1 degrees Celsius, higher than 1.2 degrees Celsius before modification, and more than 18 degrees Celsius municipal heating requirements.After transforming urban heating temperature by an average of 2 degrees Celsius, suburban rise 0.7 degrees Celsius.  

2. The living environment improvement  

Investigation of residents' living environment and benefit after transformation improve feelings deep, mainly displays in: one is to save time and effort.Avoid the heating season from purchasing coal coal to coal, coal cinder to deal with and a series of work.The second is more secure.After transforming effectively eliminates the carbon monoxide poisoning and the hidden danger of the fire.Three is the environment cleaner.After transforming the environment that occupy the home and community as a whole environment more clean and tidy.Fourth, adjustable temperature and stable running.According to survey data, the reconstruction after the 95% of households can adjust temperature by oneself, 93.4% of the equipment operation stability.Five is further guaranteed.Nearly 90% of the families that have after-sale service and safety training, ensure the subsequent use.  

In the research of late some residents also proposed to strengthen equipment maintenance and maintenance, to improve the way of subsidies, such as increasing subsidies expectations.As to further promote clean energy, coal Suggestions related departments to further improve the degree of refinement, coal to cleaner energy work to coordinate, good subsidies work, completes the policy interpretation and propaganda work, energy-saving environmental protection concept deeply rooted in the hearts of the people.