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With the development of the distributed on natural gas energy guidance "come on stage, China's natural gas supply is increasing day by day, intelligent power grid construction pace, professional service company is in the ascendant, natural gas distributed energy in China already has the large scale development of conditions. Recently, China's economic herald reporter is natural gas distributed energy development present situation, development process to meet what problems, the government and the enterprise how to cooperate with and the trend of development of the problems such as the China association of city gas interview distributed energy professional committee executive vice director of FengJiangHua.
Developing natural gas distributed energy, the key lies in the power system reform
China's economic herald: you think our country at present the natural gas distributed energy development present situation? The factors to influence the development? What are those? What measures should be taken to solve these problems?
FengJiangHua: more than ten years, our country has built more than 40 gas distributing energy projects. About half are operating, half power grid, benefit or because of technical problems in state pause. In "on the development of natural gas distributing energy guidance" issued after, industry action is bigger, involved in the project is very much, now has 30 projects are underway.
The current electric power system is distributed energy development of natural gas that the main problem. No separate distribution, power grid corporation is the power grid operators is the beneficiary of sales, itself is not a neutral public power delivery platform. According to the relevant provisions of the law, "power supply enterprises shall supply power users within the service power supply," "a power supply business area to have one power supply business organizations", "power supply business establishment or the power supply business permit application to the administrative department for industry and commerce business license, before business"
And so on, these rules limit of distributed energy project owner will sell excess power for other users.
I personally think that countries should be in the energy management in integration efforts, strengthen energy complementary and coordination, and now all the energy industry are mostly is opposite, the opposition to a large extent, wasteful and not harmonious, not security. At present the proposed regional wisdom energy systems, is built on energy integration based on the basic concept, because only to realize the integrated optimization, no integration is not possible optimized. The presence of the system and the interests of the still, there are some technical reason, power grid companies generally does not welcome distributed energy project grid. Even agree to grid, will also project of power generation capacity limit access points in the single machine main transformer substation capacity of 30%, and regulations should be no more than 25% of the main transformer largest load. The rules seriously hampering distributed energy project construction scale and economy.
China's economic herald: natural gas distributed energy in on international development is rapid, you think what experience is worth using for reference and study?
FengJiangHua: last August in the United States see when they visit project, the United States the marketization of the power grid is in place, including the control power plant, distributed energy, how to allocate how the Internet has a set of market mechanism, it is worth learning. Specific have three areas: one is air fully, the United States has the advantageous natural gas advantage. 2 it is cheaper price, the price of gas is very low, the cheapest as long as every stere of 1.4 yuan, so this kind of project implementation in the economy is very cost-effective. Three is supporting policies, the U.S. power grid in policy no obstacle, it is easy to access network, and the United States to the project's state subsidies is very high, up to 40%.
The United States government very support distributed energy, in addition to conventional energy conservation and emission reduction besides index, and the local government of some schools and hotel will give continuous subsidies.
Pilot, natural gas distributed energy saving energy vast space
China's economic herald: "on the development of natural gas distributed energy guidance" in clearly put to in order to improve the comprehensive utilization of energy efficiency as the first priority, in order to realize the task of energy saving and emission reduction for work means, and focus in the energy load center construction distributed energy system and building area distributed energy system. Please give us some details related pilot.
FengJiangHua: natural gas distributed energy of very extensive, in principle can be applied to any have stable electricity and heat (cold) load and natural gas air supply place, no matter the size of the load or whether local utility grid. Different types of users in the large scale of the system of natural gas distributing energy there is great difference. According to the scale of the system can be roughly divided into building type and OuYuXing two kinds.
Beijing gas group production scheduling command center is the natural gas pipe network monitoring and dispatch center, its construction area of 328 million m, this project is by gas group investment of the construction of the first successful operation of domestic building type for joint project. In August 2004, debugging success, refrigeration season and heating season for joint operation of the system, the transition season maintenance. In the operation of the 8 years, cooling and heating season in Beijing gas scheduling centre building is stable and reliable to provide all the cold and hot electricity demand, the system fully realize reliable, stable operation. In addition and Beijing south station, Beijing southeast thermal power plant, huanghua airport, pudong airport and other projects.
China's economic herald: natural gas distributed energy what advantage?
FengJiangHua: natural gas distributed energy system has the energy conservation, emissions, safe, economic and cut the peak and valley, the circular economy development and so on many kinds of irreplaceable advantage.
Natural gas energy saving energy is not merely the distributed the equipment or technology of energy saving, but in the whole of energy saving of energy supply systems. Because the system built in or around the customers, reduce the energy loss of transport process. Distributed energy not only avoid the loss of power transmission and distribution, used energy use principle of cascade, first power generation, recycle waste heat, reflected by the energy of the high grade to low grade science use can, and makes a comprehensive utilization of energy efficiency and benefit greatly improved. Because use clean fuel, reduce the amount of greenhouse gases in the flue gas and other harmful ingredients, through a comprehensive utilization of energy and the various local increase the use of renewable energy has further reduction effect. According to estimates, and to meet the same electric load conditions, the natural gas powered with traditional distributed way of coal-fired power points for way more, CO2 emissions can reduce about 50