Time flies, we are in a hurry, and inadvertently it will be the end of the year. Looking back on this year's work, we have made efforts and gained growth. We can't bury ourselves in hard work. Write a year-end summary to prepare for next year's work! In order to make you no longer depressed about not writing the year-end summary, the following is the photovoltaic year-end summary I collected for you. Welcome to reading. I hope you will like it.

Photovoltaic year-end summary 1 With the guidance of the director who came to the company and the help of the department manager, I gradually got a systematic understanding of the knowledge and improved my personal quality. However, despite this, due to my carelessness, I made many mistakes during my work. I will definitely correct them actively, not make the same mistakes again, and try my best to do a good job. The following is a summary of my work this year:

1, actively complete the related work arranged by the leader, so that if there are any problems in the work, seek solutions from the leader in time, ask if you don't understand, and strive to do the work well;

2, whether the work is in line with the actual situation. Before work, do the investigation to the greatest extent, analyze the key points and difficulties of the work, make a detailed work plan, and know yourself and know yourself, so as to be in an invincible position;

3. Consider the problem comprehensively, grasp the work as a whole and never let go of every detail, and never let go of problems that you don't understand, so as to get to the bottom of the problem and thoroughly understand the problem without laying hidden dangers for future work;

4. Take the initiative to finish the work. You must finish the work assigned by the leader in time and accurately. You should take the initiative to find a job for the job that the leader has not arranged. Only in this way can you show your subjective initiative instead of becoming a machine to execute orders;

In short, in this year's work, I deeply realized that it is very important to have a harmonious and progressive team. An active and dignified company and leader is the driving force for employees to move forward. Seeing the rapid development of the company, I am deeply proud and proud, and I firmly believe that this is where I achieve my goals and reflect the value of my life. Therefore, I will do my work with humility and full enthusiasm.

Photovoltaic Year-end Summary 2 Time flies, and the month of 65438+February comes quietly, which also indicates that the busy year is about to pass and the new year is about to begin. 20xx has been a tense and busy year, and some gains have been made. Looking back on this year's work, with the support and help of the company's leaders and colleagues, I worked hard to improve my working ability and carefully completed all the work contents according to the company's requirements. In a blink of an eye, the year will be over. The work of the year is summarized as follows:

1. In retrospect, it has been ten months since the Shichengzi power station project in Hami resumed work at the end of February. During this period, the personnel of the project department cooperated closely to promote the normal and orderly construction of the project. Of course, the process can not be smooth sailing, but also full of ups and downs. However, the hard work and efforts were not in vain, and the smooth completion and commissioning of the project construction is the greatest comfort to the frontline workers in our construction industry.

Seeing that the project has changed from a barren Gobi desert to the present, a personal annual work summary of 20xx years is a blue ocean organized by our own panel and our own staff, and my heart reveals a trace of joy from time to time. For the company, this is the completion of a project, which has created a reputation and profits for the company in different places; For us personally, this is the end of an exercise, and there are more projects and work waiting for us to do. We have created achievements for the enterprise, at the same time, we have also been trained and harvested the fruits of our own growth.

Second, the work content is basically on the Hami power station construction project for the whole 20xx year. Here is a brief introduction to the project overview and construction content.

The total installed capacity of Shichengzi photovoltaic power station in Hami is 20 MW. The main task of this project is to generate electricity. After completion, it will be connected to Huadian 220 gathering and transmission station in Shichengzi Photovoltaic Park of Hami through 35kV outgoing line system and merged into Hami power grid. The production and operation period is 25 years.

The project covers an area of 582,000 ㎡ and the overall layout is rectangular, with a length of 837.5 meters from north to south and a width of 684 meters from east to west. It is divided into two parts: management area and production area.

The main buildings (structures) in the management area include comprehensive office building, 35KV power distribution room, SVG room, fire pump room, guard room, garage and hard concrete square. The production area adopts the centralized grid-connected scheme of block power generation, and the battery module adopts 84600 240WP polysilicon solar panels; Choose 500kw photovoltaic grid-connected inverter, a total of 40 inverters. The 20 MW solar cell array consists of 20 1 MW polysilicon cells. Each sub-matrix consists of two 500KWP array inverter groups. Each array inverter group consists of 2 12 battery string units connected in parallel, and each string consists of 20 solar cell modules connected in series. The confluence areas divided by each solar cell string are connected in parallel, and the input lightning protection confluence box is connected to the DC distribution cabinet of the inverter room through cables. Three-phase alternating current inverted by photovoltaic grid-connected inverter is led to 35kv/0.3kv step-up transformer (box step-up substation) and then sent to the 35kv distribution room in the management area. The inverter room of each subarray is arranged in the middle of its subarray, and the box-type step-up substation is arranged near the inverter room.

The management area was delivered to the owner on August 3 1, and 5 MW grid-connected power transmission was completed in the early stage. Late 15 MW was formally integrated into the power grid on August 10 and 15, and the power transmission was completed.

Three. All the staff of the project department learn by doing, carefully organize the construction process management, strengthen the target management, strengthen the pre-control, in-process control and post-control, strengthen the quality inspection and testing, actively coordinate the responsibilities of all parties involved in the management of the project construction in strict accordance with the requirements of relevant laws and regulations of the power sector, and ensure that the project can achieve the goal of reaching the standard and putting into production.

Because of the short working hours, this is the first project I participated in from beginning to end, and it is also a relatively new project. After all, at present, domestic large-scale grid-connected photovoltaic power generation projects have just started, and there is no mature technology and experience for reference, and there are few technical data and standards. People in the company basically have no idea about the construction process and management system of ground power stations. So this project is not only a job for me personally, but also an opportunity to study and exercise. After graduation, I came to the company, worked in Baoding headquarters for three months, and then came to this project. From the project preparation to the official start of the project, and then to the photovoltaic power station, I basically experienced it once. By comparing the design drawings with the actual construction process, and comparing the technical data of manufacturers with the actual equipment installation and debugging process, we can master the power generation principle and key technologies of photovoltaic power station. Through this project as a learning platform, we can find problems, solve problems, constantly learn and sum up experience, so as to better complete the work and optimize the project in the subsequent photovoltaic power plant project construction process.

Judging from the current operation mode, the management organization of photovoltaic power plants is relatively simple. From the early operation of the project to the construction of the project and then to the normal operation of the project, there are relatively few personnel. Personnel need not only skilled technology, but also comprehensive business level in the whole project management, including: project construction procedures, project bidding, project construction management, project acceptance, project installation, commissioning and start-up, project completion and normal operation. After studying in the construction process of Hami power station project, my management knowledge has been strengthened, I have seen and learned a lot, and my management ideas have become clearer. I can have a general control of the current management mode, and I need to further refine my management and continuously improve my management level.

Four. Shortcomings and Shortcomings Although the power station has been built and put into normal use, the construction process is tortuous, exposing many problems. There are many shortcomings in the self-management of Hami power station project. It is taboo to change the project manager three times from the beginning to the end of the project.

Of course, because Yingli Group has just started to participate in power station construction, there are two projects in Xinjiang that are the first batch of power station construction projects. There are many participating units within the group, and the projects are used as learning platforms, which leads to this situation.

Although the management mode of power station construction is similar to industrial and civil construction projects, it must not be copied. The power industry has the most stringent quality requirements for projects, which will inevitably lead to interlocking procedures and many acceptance links in the construction process of 20xx. Moreover, it is different from our previous experience and must be adjusted in time. There are many thoughtless places in this project, but it can be found and solved in time. This is also a lesson for us to avoid similar situations in future projects.

Verb (abbreviation of verb) Personal suggestions for projects in different places

1) Establish a perfect management system for project personnel in different places, as well as relevant reward and punishment measures, so as to better manage and dispatch personnel's work;

2) The company shall arrange relevant leaders to organize project personnel to meet in different places within one month or within a certain period of time, and give affirmation and relevant punishment and encouragement to the achievements made during this period;

3) The technicians have some immature technical expertise, and the company should continue to increase the purchase and collection of information and some related professional training; In short, in this year's work, there are achievements, joys and shortcomings, and we will continue to work hard and constantly improve in the future. I am sure that the company is a united and efficient working team, each member can be independent, and we will work together to make progress with the company.

Photovoltaic year-end summary 3 Qinghai Delingha photovoltaic power station was successfully connected to the grid on 20x65438+February 20, becoming the first photovoltaic grid-connected power generation enterprise in Delingha. In order to make the new power station run smoothly and achieve the goal of safety, economy and full development in the shortest time, the engineering department and customer service center of the company actively undertake the construction, installation, operation and maintenance of the power station. Construction, installation, operation and maintenance are summarized as follows:

First, the preparatory work for debugging in the early stage of power station construction.

In order to realize the smooth commissioning and operation management of the power station and ensure the safe and stable operation of the power grid, Delingha Project Department, in accordance with the requirements of the national standards "Code for Acceptance of Photovoltaic Power Generation Projects" and "Notice on Strengthening the Operation Management of Grid-connected Photovoltaic Power Stations in Qinghai Power Grid", combined with the power industry standard DL/T 1040-20xx power grid operation standard, The project construction and operation management of Delingha photovoltaic power station are planned in a unified series, especially the operation outline of the power station is written in detail, and it is checked and implemented one by one according to the outline requirements, which lays a good foundation for the smooth operation of the power station.

1, strict indoor management and solid management foundation.

20xx In July, the company established Delingha Photovoltaic Power Station Project Department, which is responsible for the construction and maintenance of the power station. Since its establishment, the project department has taken strict management, accurate construction and standardized filing as the main line, and "12.3 1" as the goal of power generation, fully participated in the installation and debugging of power station equipment, and verified the rectification of non-conformities and existing problems in construction projects in combination with the technical specifications for grid connection of photovoltaic power stations, and conducted post simulation drills and operations for power station operation and maintenance personnel in combination with equipment installation and debugging. Participated in the management and operation of slave power stations and the receiving and execution of system scheduling, forming a closed loop, which laid a good foundation for later maintenance and management.

Strengthen safety production training

The responsibility for safe production is great! Since the project department entered the construction site, it has always emphasized and regarded safety production, safety construction and safety operation as the primary work objectives. In view of such a key general contracting project, combined with the specific requirements of Delingha Power Station, the project team comprehensively summarized and analyzed the key and difficult issues related to safety responsibility in Delingha's safety production and main operation and maintenance work, discussed and summarized the safety production management during the trial operation and commercial operation of the power station, and studied the deployment responsibility objectives and tasks. In time, centralized lectures and examinations focusing on operation regulations, safety regulations and rules and regulations were organized for project team members, the trial operation process and division of responsibilities were compiled, the safety learning content was clarified, the dynamic control of safety production was strengthened, and it was always consistent with the safety management requirements of superiors to ensure the safe operation of the power station.

Fully participate in drawing review and project acceptance.

During the whole construction period, in order to carry out the construction and installation smoothly, on the one hand, the project engineering department carefully and deeply read the volume drawings of each system of the project, and more thoroughly grasped the design principles and ideas. At the same time, in view of the deviation of the construction drawing design in the actual construction and installation process, it communicated with the technical department in time and fed back to the technical department for modification and improvement.

Commissioning and trial operation

In the trial operation stage of the project, we mainly cooperated with the technical department to do the following work.

1) According to the Pre-compiled Commissioning Process and Division of Responsibilities, the post responsibilities and requirements of all personnel in the project department were defined, the quality evaluation of unit projects and sub-projects was completed before the power station started, and the preliminary acceptance certificate was formed.

2) Arrange and report the main equipment parameters, electrical primary and secondary system diagrams and monitoring system diagrams of the power station, and name and number the main electrical wiring equipment of the power station.

3) Record all equipment at the production site of the power station in time, and prepare safety labels and labels.

4) Timely and dynamically understand all the procedures for the commissioning of the power station, and complete the whole set of preliminary review and commissioning start-up procedures on schedule.

2. Operation management

The operation of the power station needs specialized workers. Operators should monitor, operate and adjust the parameters of power generation equipment all day, and must work repeatedly to ensure the safe, economical and stable operation of the whole plant and the correctness of safety measures for equipment maintenance.

1) Strengthen production safety and implement the responsibility system for production safety.

Strictly implement the spirit of the higher-level meeting, organize regular meetings on operation and maintenance of production safety, prepare safety production briefings, strictly implement transportation regulations, safety rules and regulations, firmly establish the safety production policy of "safety first, prevention first and comprehensive management", implement safety production responsibilities, strengthen safety management, and ensure the safe operation of power stations.

2) Strengthen defect management and strictly manage the quality of power station construction.

According to the requirements of Technical Specification for Grid-connected Photovoltaic Power Plants, Code for Acceptance of Photovoltaic Power Generation Projects and Notice on Strengthening the Operation Management of Grid-connected Photovoltaic Power Plants in Qinghai Power Grid, the defects in the construction and operation process are counted weekly, and the main equipment is encrypted for patrol management, and the defects are eliminated together with manufacturers and construction units, and the quality management of power station construction is strictly controlled. The main defects affecting the power generation of the power station can be controlled, and practical and effective work has been done to ensure the power quality of the power station and the full and full power generation. (Repeat with the above! , delete one place! )

3) Strengthen site management to ensure the safe and stable operation of equipment.

Combined with the actual situation of power station, the management flow chart and standard are formulated from the aspects of equipment management, personnel management and operation analysis, which makes the safety production management more practical and operable. Specific measures: First, strengthen the supervision responsibility of operators during duty, find anomalies in time, nip in the bud, and make brief records and signatures in special record books. The second is to strictly implement the "two votes three systems" and compile detailed training materials for the "two votes three systems". The third is to strictly implement the scheduling command. When receiving the scheduling command, it should be repeated quickly. Fourth, do a good job in forecasting and drilling operation accidents of power stations.

At the same time, combined with the experience of on-site operation and maintenance and fault handling, the hands-on ability of the owner's operation and maintenance personnel is strengthened, and one-on-one mentoring intensive training is carried out, so that their safety operation and maintenance foundation and fault handling ability can be rapidly improved in a short time.

5) Process supervision and improvement.

According to the layout and principle of power station monitoring system, diagnosis and analysis are carried out from three aspects: data acquisition, online monitoring and fault alarm. Tracking and counting the performance of the panel and inverter, comparing the efficiency under different environmental conditions, and drawing the daily graph (time-load power) can clearly reflect the daily operation of photovoltaic power plants. At the same time, some suggestions are put forward to improve the operation of monitoring software, data extraction process, data analysis method and the definition of monitoring system name.

Second, master the performance characteristics of photovoltaic modules in photovoltaic power plants, the main test instruments and the items to be tested.

Photovoltaic module performance tester is a necessary product for quality inspection departments, manufacturers and scientific research and teaching. According to the actual defects of photovoltaic modules in power station operation, the power station operation unit can prepare simple qualitative test instruments,

1. Wet leakage current test: evaluate the insulation performance of the module under wet working conditions, and verify that the moisture of rain, fog, dew or snow melting cannot enter the working part of the internal circuit of the module, which may cause corrosion, electric leakage or safety accidents.

2. Intelligent comprehensive tester for solar photovoltaic junction box: testing junction box parameters such as voltage drop, leakage current, temperature drift, on-state DC resistance, forward and backward voltage and current under the actual working state of photovoltaic module.

Three, how to carry out regular preventive test work

The purpose of electrical preventive test is to find hidden dangers in equipment operation and prevent accidents or equipment damage; Inspection, testing or monitoring of equipment is one of the effective means to ensure the safe operation of electrical equipment. Therefore, it is very important to conduct preventive tests regularly.

First of all, a preventive test system suitable for power equipment (including test items, contents, periods and standards, etc.) should be formulated according to the national Preventive Test Regulations for Power Equipment, relevant industry standards, specifications and design data. ).

The second is to analyze and judge the pre-test results. Because the pre-test results play an irreplaceable role in judging whether the electrical equipment can run stably and safely for a long time, it is more important to make a correct analysis and judgment on the pre-test results.

The third is to strengthen technical management and improve the testing level. Standardize the management of inspection reports and original equipment files over the years; The test results should be compared with the previous test results of the equipment, with the test results of similar equipment, with reference to the relevant test results, and according to the changing rules and trends, make a comprehensive analysis and make a judgment.

Fourth, strengthen the sense of responsibility of testers. The accuracy of test results depends not only on working experience and technical level, but also on the sense of responsibility of testers. Therefore, strengthening the sense of responsibility of testers is also an indispensable and important condition for preventive testing.

Four, photovoltaic power plants should reserve spare parts under normal circumstances.

Doing a good job of spare parts is an important measure to eliminate equipment defects in time, prevent accidents, shorten accident repair time, shorten downtime, improve equipment availability and ensure safe and economic operation of the unit. Spare parts can be divided into accident spare parts, rotation spare parts and maintenance spare parts. Spare parts that should be reserved under normal circumstances can be reserved with reference to accessories, spare parts and vulnerable parts provided with the equipment during debugging and trial operation.

Verb (abbreviation of verb) Cleaning of battery panel

The cleaning of the battery panel can be accomplished by outsourcing or self-cleaning. Because the photovoltaic power station is located in the desert Gobi, dust hits the solar panels, which reduces the irradiation intensity and seriously affects the power generation efficiency. Therefore, it is very necessary to clean the surface of the battery, which is also one of the ways to improve the economic benefits of the power station.

1, cleaning cost estimation

According to the local practice of cleaning and maintenance of photovoltaic power generation, it is cleaned at least once a month, and the outsourcing is calculated according to the cleaning cost of 0.34 yuan (local salary level) (about 0.30-0.34 yuan). The number of 10 MW polysilicon panels is 44940, and the total payment is 15279 yuan, and the annual payment for cleaning the panels is about 65438+. Considering the rising labor cost in the later period, the annual cleaning cost should be around 200,000 yuan. If the power station is large in scale, the cost can be reduced and the power generation efficiency can be steadily improved by purchasing equipment and hiring employees for uninterrupted cleaning.

2. Comparison of clean cost and power generation

At present, the average annual output of photovoltaic power generation is about 10WM according to the design value. The actual newly installed panel is about 8%- 10% higher than the design value in the first three years, and then gradually decreases. The electricity price is 1. 15 yuan/kwh, so the annual power generation is calculated as160,000 kwh, and the income is about184,000 yuan. If it is not clean, it has been compared in practice based on the analysis of the influence degree of dust in the west. The power generation efficiency of washed panels in one week is 8%- 10% higher than that of unwashed panels, and it decreases day by day. The time efficiency is only about 1%-2% higher in about one month (the test time is in March-April of sandstorm season). According to the design value 10 MW and the income15.83 million kwh. The average cleaning efficiency is improved by 6%, and the economic loss can be reduced by 6.5438+0.09 million yuan. After deducting 200,000 yuan of cleaning labor wages and management fees, there is at least a surplus of 890,000 yuan, which is a conservative value.

Six, solar power generation comprehensive efficiency factor analysis

There are several factors that need special attention to the efficiency of solar photovoltaic power generation.

Operation and maintenance should be tracked frequently, and inspection should not go through the motions. Monitor the background inspection of array data at least once every hour to track whether the data has changed greatly. Discover hidden dangers in time, eradicate them in time, and check the phalanx at least once a day (especially when the radiation is high at noon, focus on observing the inverter and indoor temperature to ensure good heat dissipation). To ensure the high attendance rate of power generation efficiency, we must also ensure that there are a certain number of spare parts and wearing parts, and ensure that they can be replaced in time in case of problems. It is possible that a small component with a few dollars will lose thousands or even tens of thousands of yuan in power generation efficiency.

The cleaning frequency of the panel should be guaranteed, and the specific situation should be determined according to the cleanliness of the panel surface. In northwest China, the frequency of cleaning is basically guaranteed once a month, and the minimum power generation efficiency after cleaning can be guaranteed to be above 7%.

The selection of battery panel components is also very important. The station has two panels. Through the comparison of power generation data in a single verification, it is found that the difference between them is 4%-6%, and the purchase price is not much different. According to this difference, the cost of the difference can be equalized in less than one year. Therefore, the early selection of battery components is also a key factor.

Comparison of power generation efficiency of inverters; This station has a set of frequency converters produced by a well-known state-owned enterprise in China. By comparing the power generation efficiency of the same panel module and the same number of panels for 20 days, the difference between them is only 0. 1-0.5% under the condition of sufficient sunshine and high power generation, but it is 2-4% higher than the other one in cloudy weather, so the power generation efficiency of the inverter is basically balanced under the condition of sufficient sunshine. The main test is that under the condition of unstable weather, the voltage drop of inverter will bring about the decline of stability efficiency.

Seven. living conditions

Photovoltaic power plants are generally built in deserts and Gobi desert, with strong wind and sand and strong ultraviolet rays, which makes domestic water extremely difficult (high alkali content in water), extremely inconvenient shopping and transportation, and no entertainment activities. "patrolling the station during the day and counting the stars at night" is a true portrayal of the work and life of the project team staff. In order to enrich the life of employees, the station plans to purchase table tennis tables and badminton, and actively coordinate the preparation of optical fiber access.

In order to solve the homesickness of mainland employees, it is suggested to arrange a rotation system for employees to ensure that employees can go home once every two months. In order to retain more passionate and energetic employees to maintain the operation and maintenance of the station and make positive contributions to the regular, full-load and guaranteed development of the station.

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