The whole process of distributed photovoltaic development
plan function profit
Recently, the National Energy Administration officially issued the red headed document of the notice of the comprehensive Department of the National Energy Administration on submitting the pilot scheme of roof distributed photovoltaic in the whole county (city, district). The notice points out that the proportion of photovoltaic power generation that can be installed in the total roof area of Party and government organs shall not be less than 50%; The proportion of photovoltaic power generation that can be installed in the total roof area of public buildings such as schools, hospitals and village committees shall not be less than 40%; The proportion of photovoltaic power generation that can be installed in the total roof area of industrial and commercial plants shall not be less than 30%; The proportion of photovoltaic power generation that can be installed in the total roof area of rural residents shall not be less than 20%.
Increase the government's support by encouraging local innovation planning and integrating various project funds for Rural Revitalization. "Promoting the whole county" encourages the construction of distributed photovoltaic, effectively ensures the large-scale access demand of distributed photovoltaic in the pilot area, achieves "all connections", and realizes carbon reduction and emission reduction by using resources through the development of idle roofs such as schools, hospitals and office buildings.
In the distributed photovoltaic industry, Guangdong Zhongneng photovoltaic equipment Co., Ltd. will show you the whole process of distributed photovoltaic development.
01
Looking for project resources (exploitable photovoltaic project resources)
Distributed photovoltaic development should follow the principle of "energy conservation, environmental protection and reasonable layout"
The development process is presented as commercial photovoltaic
Preliminary communication
Establish contact with the owner, conduct interviews on basic issues such as plant conditions, roof structure and power consumption level, and determine the willingness to cooperate and energy demand.
• investigate the enterprise attributes (state-owned enterprises, listed enterprises, well-known foreign enterprises), whether the credit is good, whether the operation status and income are stable and there is no bad record. See the following points to judge the feasibility of the project:
• check whether the property rights of buildings are independent and clear (the original of real estate certificate, land certificate and construction planning license) and whether the property rights of houses are pledged.
• investigate the roof structure (concrete, colored steel tiles), service life and area of the roof (at least 20000 square meters).
• investigate the power consumption characteristics, time-sharing power consumption, electricity price, voltage level and transformer capacity.
• check whether there is shelter or high-rise building construction planning around the roof, and whether there is gas or solid pollutant emission around the building.
• investigate the owner's willingness to cooperate and preliminarily communicate the cooperation mode (self use and surplus power online).
List of preliminary data collected
Site survey
After completing the preliminary evaluation of the project, the EPC team visited and surveyed the target enterprise. The UAV aerial photography modeling is used to compare whether the architectural drawings are consistent with the actual situation. The internal structure and roof of the plant are also reviewed and photographed. (check the consistency between the physical object and the drawing and take photos), considering beams, columns, purlins, spans, spacing, sections, diagonal braces, cranes, etc.
02Prediction of technical scheme and establishment of development intention
1. Evaluate the overall operation of the enterprise and determine the cooperation mode adopted.
2
. Actively communicate with the enterprise owner, sign an agreement and enter the project filing stage.
Project filing stage
National Development and Reform Commission project filing (obtain county and district)
Grid company access approval (obtain county and district grid company access approval)
03EPC and the enterprise determine the design scheme, and the project enters the site and starts construction smoothly
After receiving the filing and access approval, EPC and the enterprise shall determine the design scheme,
The project is successfully mobilized and started
Preliminary design:
✔ Preparation of Scientific Research Report
✔ Preparation of project initiation report or project application report
✔ Preliminary design of the project
Initial procurement bidding:
✔ Project EPC procurement bidding
✔ Project supervision procurement bidding
✔ Bidding for procurement of main equipment and materials
Construction drawing design:
✔ Site surveying and mapping, geological exploration, boundary survey and putting forward design requirements
✔ Prepare the access system report and review the construction drawings and blueprints at the meeting
✔ Drawing drawing of each discipline (structure, civil engineering, electrical, etc.)
✔ On site technical exchange
✔ The preliminary design feasibility study review meeting of the transmission line shall be held, and the power grid access opinions shall be issued
Construction implementation:
✔ Equipment procurement
✔ Photovoltaic system construction
✔ Electrical connection, protection commissioning, monitoring installation, etc. of all equipment
✔ Commissioning report / record of unit works before grid connection, and the power generation system is unable to test run
✔ Unit project acceptance report / record before grid connection
Industrial and commercial photovoltaic projects are generally divided into three stages. In the first stage, project evaluation and contract signing are carried out, filing and access procedures are handled in the second stage, and grid connection is constructed in the third stage
04Grid connection acceptance
The project owner applies to the grid company for grid connection acceptance and commissioning
The power grid company accepts the application for grid connection acceptance and commissioning
Sign power purchase and sale contract and grid connection dispatching agreement with the power grid
Install gateway electric energy metering device
Complete grid connection acceptance and commissioning
Grid connected operation of the project
MULTIFIT
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