As the lifeblood of the national economy, energy is an important engine of economic growth, and is also an area of strong demand for carbon reduction in the context of the “double carbon”. Promoting the adjustment of energy structure is of great significance to the energy saving and carbon reduction of China’s manufacturing industry.
Policy increases, clean energy application scenarios on the ground
At present, China’s clean energy mainly has solar energy, wind power, etc., in the “2022 energy work guidance” proposed to vigorously develop wind power photovoltaically.
Specifically, increased efforts to plan and build a new energy supply and consumption system based on large scenic bases, supported by clean, efficient, and advanced energy-saving coal power in their vicinity, and with stable and safe ultra-high voltage transmission and transformation lines as carriers. Optimize the layout of offshore wind power, carry out a demonstration of deep-sea wind power construction, and steadily promote the construction of offshore wind power bases.
Actively promote the construction of water and landscape complementary bases. Continue to implement the development and construction of rooftop distributed photovoltaic projects in the whole county, and strengthen the supervision of their implementation. Organize and carry out the “Thousands of Villages to Harness Wind Action” and “Thousands of Households to Receive Light Action” under local conditions. Make full use of the land and rooftop resources in oil and gas mines, industrial and mining sites, and industrial parks to develop distributed wind power and photovoltaic. We will also improve the mechanism for guaranteeing the consumption of renewable energy power, release the weight of responsibility for consumption by each province in 2022, and improve the green power certificate system for renewable energy power generation.
In addition to wind power and photovoltaic, China’s exploration of other types of energy has not stopped.
The sun and the moon together, an innovative application of tidal photovoltaic
A tidal power station, as the name suggests, is a power station that combines both tidal power generation and photovoltaic power generation.
A tidal power station stores seawater in a reservoir at high tide and releases it at low tide, using the difference between high and low tide levels to drive a turbine and generate electricity.
Photovoltaic power generation is the direct conversion of light energy into electrical energy by shining sunlight on a silicon-based material, thereby generating an electric current, also known as the photovoltaic effect. Its ability to generate electricity is directly related to light conditions and is usually concentrated in the daytime when there is sufficient sunlight.
For example, tidal power stations are usually built in harbors and estuaries, which are usually difficult to construct due to the deep water and long dams, so the civil and mechanical investments are large and the cost is high. The cost of PV systems is also relatively high. Photovoltaic power generation is affected by seasonal day and night and weather conditions.
So, is there a power generation method that combines the advantages of tidal power and photovoltaic power generation?
The answer is yes, it is a tidal photovoltaic power plant.
On May 30, China’s first tidal photovoltaic power station, the National Energy Group Longyuan Power Zhejiang Wenling tidal photovoltaic complementary intelligent power station, achieved full capacity and grid power. This is also the first innovative application of solar and lunar tidal energy complementary development in China.
PV panels are laid on the water surface of the reservoir area of the tidal power station, using local light resources for PV power generation, forming a complementary power station with tidal power generation, creating a new model of coordinated operation of tidal and PV power generation. While increasing the overall power output, the fluctuations in PV power generation can be effectively suppressed by controlling the period and power of tidal power generation, improving the quality of power output from the power station, and maximizing the exploitation of marine resources.
The extended development of PV+
In recent years, the symbiotic development of “PV+” has received increasing attention from all walks of life. The National Development and Reform Commission and the National Energy Administration issued a notice on the implementation plan for the high-quality development of new energy in the new era. “Study the introduction of new energy projects such as photovoltaic sand control and other ecological restoration design, construction, operation and maintenance standards, and specifications”.
China’s first tidal-photovoltaic complementary photovoltaic power plant grid-connected power generation, making full use of energy storage system energy charging and discharging replacement, as well as millisecond power fast response characteristics, so that it is effectively transformed from “adapt to grid operation” to “support grid operation”, which is important for the construction of new This is of great significance to the construction of new power systems and the promotion of industrial energy structure adjustment.
Post time: Aug-12-2022