Development status and prospect of natural gas power generation in China

China's natural gas power generation is in a period of rapid development

China's natural gas supply has been stable through multiple channels

As one of the important fields of natural gas utilization, natural gas development

The electricity industry is facing a rare opportunity for development. Since 2014

Since July, the National Development and Reform Commission has issued a series of

Policies to encourage and promote the development of natural gas power generation.

In June 2017, the National Development and Reform Commission issued the "Plus

Fast promote the use of natural gas opinions "proposed in the natural

Gas cultivation has become the main body of China's modern clean energy system

One energy source. At the same time, the natural gas power generation industry has changed

Reform and development are also advancing. "Thirteen-five" period, in

China's natural gas power generation grew at an average annual rate of 9.69%. Up to 2021

In June, the country installed 6 MW and above gas power generation

Capacity reached 105.88 million kilowatts. With China natural gas

The large-scale development and utilization of resources, the national "west-east gas transmission",

Offshore natural gas development and the introduction of foreign liquefied natural gas

Work is in full swing; With the supply easing period superimposed market

During the accelerated reform period, the cost of natural gas power generation will gradually increase

Down. In the context of the goal of carbon peaking and carbon neutrality, the ring

The time is right for low-carbon and flexible gas and electricity.

On the one hand, natural gas power generation will continue to be the load center for coal

The elimination of electric units provides alternatives; At the same time, flexible and efficient

The natural gas distributed energy station will be an industrial park and logistics

Parks, tourism service areas, large commercial facilities, transportation hubs

New York, schools, hospitals and other regional energy supply to provide reliable support;

In addition, the future of natural gas power generation will be with wind power, photovoltaic power generation

And other renewable energy combined to achieve multi-energy complementarity,

It has become an important component of the power grid flexible peak regulation resources

The country continues to comprehensively build security, reliability, resilience and resilience

Natural gas industry chain, supply chain system, active integration

Enter the international natural gas market development. China's natural gas is recoverable

The amount of resources is 85.4×1012m3

Ranked 2nd in the world,

The average annual increase of natural gas in the 13th Five-Year Plan exceeds 10 billion cubic meters,

The annual growth rate is more than 7.4%X

According to the IEA 2021 latest

Statistics show that China's natural gas production ranks fourth in the world. Since the

Since the "13th Five-Year Plan", natural gas production, supply, storage and marketing system

Steady progress in construction, natural gas storage output and domestic natural gas

Natural gas production increased rapidly, and natural gas imports continued to increase

In addition, the "national network" is basically formed for natural gas

Lay a solid foundation for sustainable development of electricity.

In the medium and long term, the market environment of easy international and domestic supply,

With the continuous advancement of oil and gas reform, natural gas supply can be obtained

The price of natural gas will gradually become more reasonable. According to the

IHS Market forecast, Asian spot market gas prices

Close to the European market trend, it is currently under construction

Global LNG liquefaction projects will lead to significant new supply

Growth may outpace demand growth, causing prices to rise

And help spur additional gas demand,

Asian spot prices are expected to be significantly lower for many years

Governors Association price. 

It cannot be ignored that natural gas supply is highly dependent on foreign countries,

Environmental protection and low-carbon policies and electricity market reforms need to be improved

Problems also make the development of gas power is not smooth sailing.

If natural gas prices continue to rise since 2020, on

Resource supply uncertainty and downstream market volatility

Gas power is at a disadvantage in the electricity trading market. although

Gas-fired power plants emit less carbon per unit of electricity than coal-fired power plants

50%~60%, and the emission of pollutants is significantly lower than that of coal-fired power

Factory, but the current carbon trading and energy trading market line

It is not yet fully mature, and natural gas power generation is environmentally friendly and low-carbon

The environmental value has not been recognized by the market. Meanwhile, natural

Gas power generation outstanding peak regulation and frequency regulation performance is recognized, right

To build a secure and stable future with a high proportion of renewable energy

The new power system with source as the main body is also crucial

The 14th Five-Year Plan will be the strategic "window period" for the development of natural gas power generation industry

It is expected that by 2025, China's installed capacity of natural gas power generation

It will exceed 150 million kilowatts, accounting for 6% of the total installed capacity

Around. Under the national double carbon goal, coal reduction and gas extraction is the future

An important measure for energy structure adjustment and carbon reduction in 10-20 years. countries

National Energy Bureau, Development Research Center of The State Council, Natural Resources

The Ministry and other departments jointly issued the "China Natural Gas Development News.

Report (2021) predicts China's natural gas consumption in 2025

The scale will reach 430 to 450 billion cubic meters by 2030

It reached 550-600 billion cubic meters, and then the gas was depleted

It will grow steadily and sustainably and enter development around 2040

The plateau period. Compare the development path of natural gas industry in developed countries

In terms of diameter, the consumption of natural gas has increased after the market has entered a mature period

Long-term power comes mainly from electricity generation. In early 2021, China gas

The installed power capacity exceeded 100 million kilowatts, accounting for the total installed power generation ratio

That's 4.5% by weight, well below the global average of about a quarter

Average level; The proportion of electricity generation is only 3.26%, which is also far lower

The global average is 23%.

Natural gas power generation is environmentally friendly and low-carbon, and has flexible operation.

The unit can start quickly, both base load power generation and peak balancing

Power generation, and easy access to the load center, improve power supply

Depend on sex. In addition, a new type of power system is constructed from the state

According to the positioning and demand of gas and electricity, gas and electricity are not only substitutes for coal

Electricity is an important component of reducing carbon emissions (international experience is also

So), it will also be supported after the proportion of renewable energy increases

The flexibility and safety of the grid are important to rely on. At the moment,

The proportion of flexible power supply in China is still low, pumped storage,

The proportion of flexible power sources such as gas power generation is only 6%,

There is an urgent need for gas power generation with high efficiency, low emissions and high flexibility

"Cheer up."

Natural gas power generation is currently mainly distributed in the economy

Adequate supply of natural gas, environmental protection and low carbon requirements

Higher Yangtze River Delta, Pearl River Delta and Beijing-Tianjin-Hebei and other regions.

During the "14th Five-Year Plan" period, we will continue to promote the process of coal to gas,

Load centers are available in densely populated large cities

Deployment of large-scale and efficient natural gas power generation; Also,

In new industrial parks and large business districts in large and medium-sized cities,

Actively develop natural gas distributed energy to achieve gas, electricity,

Cold and hot integrated supply, coordinated development. with

When, in natural gas and scenery resources rich area supporting construction

A number of gas-fired peaking power stations ensure sufficient capacity and flexibility

Start-stop power plants to regulate grid load peaks and valleys on the grid

FM service available. By establishing synergistic qi -

Wind complementary or gas-light complementary power generation mode, wind-light -

A new form of hydrogen-gas coupled power generation, improving new energy and energy

The total output level of renewable energy generation and the operation of the grid can be

By virtue of the ability and power supply delivery, the realization of gas electricity and new energy

Source integration development.

Due to the complexity of load regulation, coal power supercritical units

The load change rate is about 1.5% of the rated power.

Due to load by boiler and steam turbine and other auxiliary

The combined effect of the machine, such as the thermal stress of the cylinder block, is actually 60

The load adjustment rate of 10,000 grade coal power is about 20MW/ min

Around. Gas turbines rely on direct regulation of fuel

To adjust the load, the cylinder body ADAPTS to changes in thermal stress, there

With fast lifting load capacity, 9HA.01 lifting load

The rate is 65MW/ min, which is more than three times that of the same coal power.