1. common problem

2. flat ground

3. Mountain

4. Water surface and tidal flats

5. coal mining subsidence area

Go to the Land and Resources Bureau (check the second survey map), Cultural Relics Bureau and Forestry Bureau to check the land type of the site and whether it covers cultural relics or minerals. If the land is of a type that cannot be used or is covered, blindly carrying out follow-up work will cause inconvenience. Necessary waste.

Input the GPS coordinates into the map, observe the macroscopic situation of the site, measure the site area, and estimate the photovoltaic installed capacity.

Based on the estimated photovoltaic installed capacity, design and deliver the voltage level; examine the voltage level, capacity, and whether to reserve intervals of the nearest substation to the site, and collect the electrical primary diagram of the substation to determine the photovoltaic access capacity. If there is no suitable access point, T pick-up and drop-off can be carried out with the approval of the prefecture-level power grid company.

1||| Land Land Document No. 5—Basic Provisions on Land Issues

2||| Land Land Document No. 8 - Provisions on Composite Land Use

3||| Forestry Document No. 153 - Regulations on the use of forest land for photovoltaic projects

4||| Strictly abide by the regulations on resource, environment and ecological protection red lines

5||| Land use overall planning system of the land department

a. Review opinions from land, power grid companies, forestry and other departments

b. Other progress made (such as surveying, mapping, geological survey, etc.)

c. Project overview and project company business license

Note: The information provided may vary slightly depending on local conditions.

1||| List of projects announced by the Provincial Development and Reform Commission

2||| Project feasibility study report

3||| Basic information registration form, energy saving registration form, bidding plan

4||| Instructions for filing application

5||| Business license

Commonly used basic types: Prestressed pipe piles, precast concrete piles, cast-in-place piles, spiral piles

Design Notes: The height of photovoltaic modules from the ground for such projects is generally 2 to 2.5 meters. The preferred foundation forms are prestressed pipe piles and precast concrete piles. In case of rocky geological conditions, cast-in-place piles can be used. When the height of photovoltaic modules from the ground is small, , spiral piles can be used.

Commonly used basic types: Spiral piles, cast-in-place piles, prestressed pipe piles, precast concrete piles, strip foundations

Design Notes: For such projects, helical piles and cast-in-place piles should be the first choice, followed by strip foundations. For power stations that require a large height above the ground for photovoltaic modules, prestressed pipe piles or precast concrete piles can be used.

Commonly used basic types: Spiral piles, cast-in-place piles, prestressed pipe piles, precast concrete piles, anchor foundations

Design Notes: For such projects, if the surface soil thickness is greater than 1.5 meters, helical piles should be used; anchor foundations can be used in exposed rock and soil sites; concrete cast-in-place piles can be used when the surface soil is thin; when the components have high ground clearance requirements, they can be used. Prestressed concrete piles, cast-in-place piles or anchor rod foundations are used according to geological conditions.

Commonly used basic types: Anchor foundation methods - counterweight, prestressed pipe piles, precast concrete piles Floating method - floating body, HDPE floating pipe, high-density polyethylene floating tank

Design Notes: The anchoring foundation method should be the counterweight method. In areas with large wind and current effects, prestressed pipe piles or prefabricated concrete piles can be used. The floating method should be the floating structure with relatively mature technology.

Commonly used basic types: Spiral piles, prestressed pipe piles, precast concrete piles

Design Notes: For areas with stable settlement, spiral piles, prestressed pipe piles or precast concrete piles can be used; for areas with residual deformation and when there are high requirements on the height of components from the ground, prestressed pipe piles or precast concrete piles can be used.

1||| Civil engineering

2||| Installation work

1||| Apply to the provincial electric power company and submit anti-power transmission documents

2||| According to the access system requirements, report the network access technical conditions to the trading center

3||| Sign a grid connection principle agreement with the power grid

4||| Naming, numbering and range division of dispatching equipment issued by provincial dispatch

5||| Signed "Grid Connection Dispatch Agreement" with provincial dispatch and local dispatch respectively

6||| Sign an "Electricity Purchase and Sale Contract" with the power company

7||| Sign the "Line Operation and Maintenance Agreement" for self-built lines

8||| "Project Quality Inspection Report" issued by a qualified quality supervision station

9||| The "Grid Connection Safety Evaluation Report" and "Technical Supervision Report" issued by the Provincial Electric Power Research Institute also report that the defects mentioned in the report that affect power transmission have been rectified, and a rectification plan is listed for those that do not affect power transmission.

10||| The Provincial Electric Power Company Trading Center will entrust regional power companies to conduct on-site inspections of network-related equipment and whether the equipment and devices are constructed and improved in accordance with the requirements of access system documents, meet grid connection conditions, and implement rectification of issues raised in "safety assessment, technical supervision" and other reports . After acceptance, an acceptance report with reverse power transmission will be reported to the Provincial Electric Power Company Trading Center.

11||| Based on the completion of the above work, the trading center will promptly organize a reverse power transmission coordination meeting, organize all relevant departments to sign, and then issue a document agreeing to the reverse power transmission.

1||| Engineering quality inspection report

2||| Grid connection safety evaluation report

3||| Technical supervision report

4||| Electric power company acceptance report

5||| Rectification report for issues raised in each inspection report

6||| "Electricity Supply and Usage Contract"

7||| Negotiate and determine the "Electricity Purchase and Sale Contract" and "Dispatch Agreement"

8||| Convene the opening committee and report the rectification of the issues raised in the meeting resolutions

9||| Issue documents agreeing to grid connection and arrange project connection to grid

10||| Apply to the provincial electric power company to confirm that it meets the power grid requirements

11||| Handover letter for production acceptance

12||| The network-related test is completed and meets the requirements of the power grid.

13||| Electricity price approval document (if any)

Note: There are slight differences according to local regulations.