Time Bochuan detailed energy storage power station project construction process
日期：2023年05月10日 | 浏览次数：340
An energy storage power station refers to an equipment system that stores, converts and releases recyclable electric energy through electrochemical batteries or electromagnetic energy storage media.
The energy storage power station is mainly composed of four parts, which are energy storage battery, battery management system, inverter and energy management system. Among them, batteries account for the highest proportion of energy storage system costs, about 60%. The energy storage power station has various technologies and strong pertinence.
Its working principle is to store power through energy storage batteries such as lithium batteries and lead batteries, and release it at peak times. This can effectively solve the imbalance of power supply and demand in time and improve the efficiency of power resource utilization.
Energy storage power station project construction process
01
Pre-project investigation
Investigate the energy storage peaking project
The land availability nature and scale of the project;
Distribution capacity configuration and related policies of the project location;
Power grid structure and its annual load;
Voltage level of the access system;
Access interval verification;
Outgoing line length and corridor condition;
Policies of the local power grid company.
02
Pre-construction materials and approval documents of the project
Feasibility study analysis
Entrust a local qualified unit to conduct a feasibility study and analysis;
Entrust local qualified units to conduct feasibility study analysis and review.
Obtain the approval document
Feasibility stage
Obtain the record of the county development and Reform Commission;
Obtain the preliminary opinion of the provincial/autonomous regional land bureau for pre-examination of construction land;
Obtain the provincial power company project preliminary review opinions and power grid access opinions;
Obtain the environmental protection Bureau project construction preliminary review opinions;
Obtain the urban Construction Bureau project site selection report.
03
Project construction drawing design
Energy storage scheme design
Site mapping, geological prospecting, boundary survey, and design requirements;
Access system report preparation and review;
Produce a general construction blueprint;
Drawing for each specialty (structure, civil engineering, electrical, etc.);
Issue product technical specifications (as the basis for equipment procurement);
Sign technical agreements with various manufacturers;
On-site technical disclosure, joint review of drawings;
Send out the initial line can be studied and reviewed, out of the power grid comments.
04
Project site implementation construction
Project construction
Equipment procurement;
Energy storage power station area construction work (foundation pouring, battery container installation, booster bin installation; Bus box installation, inverter, box transformer infrastructure; Box transformer, inverter, DC cabinet, communication cabinet equipment installation and debugging test; Electrical connection and cable laying full ground production welding; Road construction in energy storage power station area);
Living area construction work (SVG small room, high pressure room, central control room, comprehensive room, water pump room and equipment installation; All equipment installation, commissioning, testing, protection and commissioning, electrical connection, monitoring installation, fire equipment installation, security monitoring camera, etc.
Construction of peripheral lines, installation of equipment of the opposite station, transfer of the opposite station to the point, dispatching and debugging of provincial and local transfer, etc.
Cable laying of all equipment is connected and tested.
05
Post-project acceptance
Pre-completion acceptance
Project acceptance
Provincial and municipal power construction engineering quality supervision station acceptance;
Safety assessment, technical supervision and acceptance of provincial and municipal electric power construction and commissioning institute;
Fire brigade acceptance inspection;
Power grid company acceptance;
Power station commissioning plan review.
Reverse power supply process of booster station
Workers carry out reverse power transmission acceptance
Submit an application for reverse power transmission to the power company;
Report network connection technical conditions to the trading center;
Signed the "Grid-connected dispatching Agreement" with the provincial and local commissions respectively;
Signing the Power Supply Contract with the power company;
Coordinate and determine the annual "Electricity Purchase and Sale Contract";
Issue documents agreeing to the grid connection of the unit, and arrange the grid connection of the unit.
Commercial operation of power station
Official operation of power station
Sign the acceptance letter;
Net test completed;
Obtain the electricity price approval documents;
Obtain acceptance certificate;
Power station operation.
Energy storage policy
Driven by policy support and technological development, the energy storage industry will usher in more development opportunities. It is expected that in the next 3-5 years, the market size of China's energy storage industry will further grow, reaching 2-3 trillion yuan.
Among them, the size of the new energy storage market will reach 1-1.5 trillion yuan, while the size of other energy storage markets will also reach 1-1.5 trillion yuan.
01
National policy
On January 6, the Comprehensive Department of the National Energy Administration issued a notice on publicly soliciting opinions on the "Blue Book on the Development of New Power Systems (Draft for comment)".
Blue Paper on the Development of New Power Systems (Draft for Comment)
We will strengthen the construction of a large-scale distribution application system for energy storage.
From 2030 to 2045, large-scale long-term energy storage technology will make major breakthroughs to meet the needs of balanced adjustment over the day.
From 2045 to 2060, multiple types of energy storage covering the whole cycle, such as electricity storage, heat storage, gas storage and hydrogen storage, will operate cooperatively, the power system will achieve dynamic balance, and the operational flexibility of the energy system will be greatly improved.
On January 17, six departments including the Ministry of Industry and Information Technology issued the Guiding Opinions on Promoting the Development of the Energy Electronics Industry.
Guiding Opinions on Promoting the Development of Energy Electronics Industry
The guideline calls for the balanced development of solar photovoltaic, energy storage technology and products to avoid overcapacity and vicious competition.
Promote the deep integration and innovative application of "optical storage and information", grasp the development trend and law of the digital economy, accelerate the integration of the new generation of information technology and new energy, and actively cultivate new products, new business forms and new models.
On February 21, the industry standard "Technical Guidelines for New Energy Storage Planning for cross-provincial power Transmission Configuration of New Energy Bases" (draft for comment), led by the National Energy Administration, was released.
Technical Guidelines for New Energy Storage Planning for Cross-Province Power Transmission Configuration of New Energy Bases
The guidelines will be used to guide the new energy storage planning of cross-provincial power transmission configuration of new energy bases, and clarify the corresponding technical principles.
The main technical content includes: terminology and general principles, configuration capacity analysis, planning site selection, technology selection, layout and access system, power system secondary, technical and economic analysis, etc.
02
Provincial follow-up policy
On January 5, the Gansu Energy Supervision Office of the National Energy Administration issued the "Gansu Province Electric Power Auxiliary Service Market Operation Rules (Trial)".
Operation Rules of Gansu Power Auxiliary Service Market (Trial)
Energy storage resource trading includes peak capacity market trading and frequency modulation auxiliary service market trading. Energy storage charging power should be 10,000 kilowatts and above, continuous charging for 2 hours and above, with independent metering and AGC functions.
The peak capacity market transaction is a transaction that refers to the investment and construction cost of independent energy storage facilities and obtains compensation by bidding according to the adjusted capacity (capacity).
Independent energy storage participates in the peak capacity market trading according to its rated capacity, and the upper limit of the declaration and compensation standard is temporarily implemented at 300 yuan/(MW· day).
On January 11, the Sichuan Provincial Development and Reform Commission and the Sichuan Provincial Energy Bureau issued the notice of the Implementation Plan of Carbon Peak in the Energy Field of Sichuan Province. Implementation Plan for Carbon Peaking in the Energy Sector of Sichuan Province
The circular pointed out that the construction of a new power system will be accelerated.
We will strengthen the research, demonstration and industrial application of new energy storage technologies such as high-capacity electrochemistry and compressed gas, and develop key technologies such as molten salt energy storage for heating and power generation, flywheel energy storage, and high-temperature phase-change materials for heat storage.
Demonstration of intelligent operation and maintenance technology and application of 100 MW high altitude optical storage power station.
On January 12, the Guizhou Provincial Energy Bureau issued the Notice on the declaration of the "14th Five-Year Plan" New energy storage Pilot Project in Guizhou Province.
Notice on Applying for the "14th Five-Year Plan" New Energy Storage Pilot Project in Guizhou Province
The notice requires that new energy storage projects should be built in combination with the diversified needs of the power supply side, the power grid side and the user side, effectively improve the ability to coordinate and interact with the charge and storage of the source network, ensure the efficient use of new energy, and improve the flexible adjustment ability and security guarantee ability of the power system.
Project types include but are not limited to electrochemical energy storage, compressed air energy storage, flywheel energy storage, etc. The new energy storage demonstration project will be included in the "14th Five-Year Plan" special plan for new energy storage development in Guizhou Province.
The applicant shall submit the application information and materials to the New Energy Department of Guizhou Energy Bureau before February 20.
With the continuous improvement of the Chinese government's policy to promote the development of the energy storage industry, the energy storage industry will receive more policy support and form a more perfect policy environment, thus promoting the development of the industry.