The hottest biomass power generation suffers from

2022-08-02
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Biomass power generation suffers from growing pains. Electricity prices are unreasonable, subsidies are in arrears, and emission standards are missing.

biomass power generation is a renewable energy, but there is no "scenery" of photovoltaic and wind power. Due to its small scale, biomass power generation often can only refer to other renewable energy varieties in industrial policies

a few days ago, I learned from an interview in Henan province that biomass power generation enterprises are generally faced with such difficulties as unreasonable electricity prices, delayed subsidies, no special emission standards and difficulties

in fact, most biomass power generation projects are not only energy projects, but also environmental protection projects and livelihood projects. It is obviously not enough to provide supporting policies only according to the energy properties of the project

it is not only an energy project

Tianhao new energy Co., Ltd. is located in Henan, a big province in the Central Plains. Linying County near the company is a key county of national grain production, but also a well-known pepper planting base in China

it is learned that while pepper planting brings economic benefits to Linying farmers, the treatment of pepper stalks has also become a major problem perplexing the local government. According to the calculation that 1 ton of pepper stalk is produced per 5 mu of pepper, the annual output of pepper stalk in Linying county and surrounding areas is up to 100000 tons. For a long time, local farmers have been mainly burning pepper stalks, which not only brings environmental pollution problems, but also causes huge fire hazards

chengbingqian, executive director and general manager of Tianhao new energy Co., Ltd., told us that the completion of Tianhao new energy biomass cogeneration project has helped farmers turn waste pepper stalks into treasure, Realizing Farmers' income increase and environmental governance, killing many birds with one stone

compared with straw power generation, landfill gas power generation, which belongs to biomass power generation, is a "minority of the minority"

Henan Baichuan Changyin environmental protection energy Co., Ltd. is a leading enterprise in the field of landfill gas in China. Hanxu, director and executive deputy general manager of the company, told that the main purpose of landfill gas power generation is not to generate electricity, but to deal with the odor generated by the landfill, in other words, to protect the environment

on the one hand, the greenhouse effect of methane gas is 25 times that of carbon dioxide. Landfill gas power generation directly destroys methane through internal combustion engine power generation to avoid air emissions, thus reducing direct greenhouse gas emissions; On the other hand, as an available clean energy, landfill gas can partially replace thermal power generation, thus reducing the demand for thermal power and realizing indirect emission reduction

Han Xu disclosed that Baichuan's landfill gas project suffered losses for five consecutive years from 2007 to 2011, and did not realize profits until 2012. Scattered projects, small single scale and low electricity price make landfill gas power generation enterprises face great survival difficulties. At present, there are only sevenoreight enterprises specialized in landfill gas power generation nationwide

compared with other renewable energy projects, biomass power generation projects are small in size and low in power generation, but they play a unique social benefit in targeted poverty alleviation, employment promotion, agricultural income increase, environmental protection, etc

growth encounters multiple puzzles

compared with the perfect subsidy and decline system for wind power, photovoltaic and other renewable energy, how to adjust the biomass electricity price for an ordinary car produced in the next few years and how the industrial support policies will change, the enterprise has no bottom in mind, so it does not dare to shake off its arms for long-term business layout

Han Xu told us that the benchmark electricity price of landfill gas is a subsidy of 0.25 yuan/kWh based on the electricity price of coal desulfurization in 2005. Taking Henan as an example, the electricity price for coal power desulfurization in 2005 was 0.336 yuan/kWh, and the electricity price for landfill gas power generation project was 0.586 yuan/kWh. Now, 13 years later, the electricity price for coal-fired power desulfurization in Henan has reached as high as 0.4191 yuan/kWh during this period, and is currently 0.3778 yuan/kWh. However, the electricity price for landfill gas power generation is still the basic electricity price in 2005, which has not been adjusted

it is understood that the electricity price for biomass power generation was unified at first. Later, with the development of straw incineration power generation and waste incineration power generation, the electricity price was set separately. Only the "minority" landfill gas power generation still implemented the electricity price of more than ten years ago

"at present, the electricity price for straw power generation is 0.75 yuan/kWh. Among them, the fuel cost accounts for more than half. Different from the zero cost of wind power and photovoltaic fuel, in the long run, the fuel cost for straw power generation has an upward trend. Although some provinces such as Hubei and Anhui have local subsidies, we realize that most of the places with straw resources are agricultural counties, and most of them are poor counties. It is unrealistic to expect local financial subsidies." A relevant person in charge of a straw power generation enterprise said to

compared with the price of electricity, straw power generation enterprises are more worried about the problem of arrears of national financial subsidies. The above-mentioned person in charge told: "unlike wind power and photovoltaic power, straw incineration power generation has fuel costs, and the payment for fuel purchased from farmers cannot be in arrears. Whether the state subsidies can be in place in time is crucial to the survival of our industry."

it is understood that new straw incineration power generation projects generally take about two years to apply for national financial subsidies

Han Xu told that biomass power generation projects are generally faced with financing difficulties, which not only have high financing costs, but also have limited financing channels

the above responsible person said that biomass power generation is small in scale and greatly affected by policy fluctuations. The difficulty in financing, first of all, stems from banks' ignorance of the industry, and secondly reflects banks' lack of confidence in the stable development of the industry

compared with coal-fired power generation, biomass power generation has low sulfur content, and emission control is mainly aimed at nitrogen oxides. At present, there are no special environmental emission standards for straw power generation and landfill gas power generation, but refer to the thermal power standards. Due to the different understanding of the competent departments in various regions, the requirements for enterprises are also quite different

it is reported that straw power generation is more difficult than coal-fired power generation to achieve ultra-low emissions. Because the straw will fluctuate in the combustion process, in order to meet the requirements of ultra-low emission, we must minimize the emission peak

in addition, landfill gas power generation, gas power generation and biogas power generation all directly burn methane gas through internal combustion engines. They are all environmental protection projects dealing with waste gas. Their raw materials are too different from coal-fired thermal power generation, so it is not suitable to refer to thermal power emission standards

the industry calls for the introduction of environmental emission standards for biomass power generation projects such as straw power generation and landfill gas power generation as soon as possible, which is more conducive to the long-term sustainable development of the industry. "The introduction of special standards does not mean that the emission standards for biomass power generation should be reduced, but should be more targeted and more suitable for the industrial characteristics of biomass power generation." The above relevant person in charge emphasized

"In some provinces and cities, landfill gas power generation projects also encounter difficulties. Generally, the installed capacity of a single project is 1-3MW. At present, power companies require that the project be equipped with the same communication equipment as thermal power generation, and some require that power transmission lines must be built. The construction investment of the project itself is generally 5-8million, while the investment of external lines and communication equipment is 2-4million, which is a great burden for low profit landfill gas power generation projects. It is suggested that power companies can Small power generation projects should be treated flexibly. " Hanxu said

industrial policies should have stable expectations

in 2006, the national fire and power enterprises obtained the consent of customers to set off an upsurge of "increasing the size of power plants to suppress the size of power plants", and small thermal power plants are facing shutdown. At that time, chengbingqian was the person in charge of a small local thermal power enterprise in Henan. He was busy running power generation indicators to help the enterprise solve its difficulties. By chance, he came into contact with biomass power generation and successfully transformed coal-fired power plants into biomass power plants. At that time, Jinan Shijin, an experimental machine manufacturer in Jinan, introduced to everyone what kind of 8 countries there were, which was an initiative in Henan and even the whole country

in the more than ten years since entering the biomass power generation industry, chengbingqian has personally experienced multiple stages of industrial development and has a clearer understanding of the future of the industry. In his opinion, the direction of biomass power generation is cogeneration

chengbingqian said that at present, in datongling City, there are "three" in the city; 1035 rdquo; Under the condition of "no shortage of heat but no shortage of electricity" in some areas of the scientific and technological innovation and development plan, the demand for residential heating and industrial heating is far greater than the demand for electricity. The cash flow of heat supply business is significantly better than that of power generation business. Increasing the proportion of heating business will help to reduce the dependence of electricity prices on national financial subsidies

generally speaking, biomass power generation projects are small in size, and large-scale development is its inevitable trend

"the cash flow of heating business is good, but only by realizing large-scale development can the capital situation of biomass power generation enterprises be truly changed." The relevant person in charge said

Han Xu said: "without scale effect, it is difficult for a single landfill gas power generation project to make profits at the current electricity price level. This is also the root cause of fewer and fewer enterprises engaged in landfill gas power generation business." He suggested that the country could refer to the step tariff of Germany when formulating the electricity price for landfill gas power generation. The electricity price of projects with large installed capacity is lower, and the electricity price of projects with small installed capacity is higher, which is more conducive to the promotion of such environmental protection projects

the national biomass power generation industrial policy reflects the cascade development. In the past, biomass straw was encouraged to generate electricity, and straw utilization was changed from "blocking" to "draining". When straw power generation developed to a certain extent, biomass cogeneration was encouraged

"for private enterprises, the continuity and sense of rhythm of the national industrial policy are very important." Chengbingqian thinks

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