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Distributed Power Stations

According to the differences in design, construction, and installation methods, the distributed photovoltaic power station business can be divided into BAPV (Building Applied Photovoltaics) and BIPV (Building Integrated Photovoltaics). Both methods use rooftop to develop distributed photovoltaic power stations to generate photovoltaic power.


Industrial and commercial distributed photovoltaics can be divided into the “all generation to the grid” mode and the “self-consumption first and the excess to the grid” mode according to different consumption modes. The company focuses on the investment and operation of industrial and commercial distributed photovoltaic power stations of the “self-consumption first and the excess to the grid” mode and obtains stable power generation income by selling the power generated by photovoltaic power stations. According to the principle of “self-consumption first and the excess to the grid”, the company signs energy management contracts with the owners of roof resources. After power stations are completed and put into operation, the company will prioritize the owners of rooftop resources based on their electricity needs and give them discounts on the electricity price or pay certain rental fees. If there is still residual electricity after the power generated by the power station is consumed by roof resource owners, the residual electricity will be fully connected to the grid.


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  • Technical data related to social benefits of photovoltaic power stations

  • Installation capacity:

    10000m2≈1MWp

    Annual power output:

    1MWp ≈ 1 million KWH/year

    Annual savings of standard coal

    ≈360 tons

    Annual emission reduction:

    CO2≈1000 tons,SO2≈30 tons

    Oxynitrides≈15 tons

    On-grid mode

    Self-consumption first and surplus to the grid

    High voltage power distribution cabinets:

    High-voltage supply and high-voltage metering (middle-placed switch cabinet, loop grid cabinet)

    Low metering

    On-grid types

    High voltage on-grid (10KV, 20KV, 35KV, and 110KV), low voltage on-grid (380V)


Advantages of photovoltaic power generation systems

Benefits to enterprises of installing photovoltaic power generation systems

  • 01. Economic benefits

    Obtain certain economic benefits through preferential electricity prices or rents.

  • 02. Free roof management for photovoltaic installation area

    Free from worrisome roof leaks, trash disposal, clogged gutters, and more.

  • 03. Warm in winter and cool in summer

    Photovoltaic modules cover the roof and have a protective effect and effectively slow down the aging. Meanwhile, photovoltaic modules have a significant thermal insulation effect, effectively reducing indoor temperature, improving the working environment, and saving energy costs.

  • 04. Enterprise energy assessment

    Contribute to the energy assessment of enterprises. (Photovoltaic power is not included in the assessment indicators.)

  • 05. Advantages of orderly use of electricity

    When the orderly use of electricity is implemented, photovoltaic power generation is not affected by electricity ration.

  • 06. Environmental protection

    Zero-emission, pollution-free, renewable photovoltaic energy will boost the company’s financing and credit evaluation.

  • 07. Promote the image of companies

    Conducive to improving the overall image of enterprises.

  • 08. Social responsibility

    Respond to the national call for double carbon and dual control actions, undertake social responsibilities, and return lucid waters and lush mountains to future generations.


08. Social responsibility

BAPV Installation Structure

BAPV refers to the solar photovoltaic power generation system attached to buildings, whose main function is to generate electricity without affecting the function of buildings. BAPV does not destroy or weaken the functions of the original building.

  • 01

    Concrete Roof

    Installation Technical Solution

    The concrete roof adopts a prefabricated strip concrete foundation. It is directly placed on the roof without secondary damage to the roof to ensure that the roof does not leak water and bring an effective thermal insulation effect. The load per square meter is less than 50kg.


  • 02

    Color Steel Roof

    Installation Technical Solution

    The color steel roof adopts aluminum alloy fixtures. They are directly fixed on the roof without secondary damage to the roof, ensuring that the roof does not leak water and bringing an effective thermal insulation effect. When the full roof is covered, the load per square meter is less than 13kg.


BIPV Installation Structure

Perfect integration of photovoltaic power and architecture

Building integrated photovoltaics opens a new era of architecture


BIPV refers to a photovoltaic power generation system simultaneously designed, constructed, and installed as the building and is perfectly integrated with the building. As a part of the external structure of the building, it not only has the function of power generation, but also has the function of building components and building materials, and can even enhance the beauty of the building and form a perfect unity with the building.





  • Overall structure of Sunoren rooftop BIPV system

  • Technical solutions for rooftop installation


    Color steel roof: Connected with color steel through special fixtures without damaging the original roof structure.

    Concrete roof: Guiding gutter support is connected to the roof through chemical anchor bolts and the connection is coated with outdoor waterproof sealant.

    The main guiding gutter is fixed on the guiding gutter stand.





    Save construction costs


    Color steel roof: Color steel tiles, thermal insulation cotton, and color steel tiles or steel wire mesh are needed to be laid in the upper, middle, and lower layers respectively for traditional color steel roofs at the cost of approx. 100 yuan/m2. However, the BIPV system structure only needs to lay a layer of thin color steel tiles and the cost is only about 50 yuan/m2. 500,000 yuan can be saved for each 10,000 m2.

    Concrete roof: To prevent the roof from aging and water leakage, a layer of waterproof rolls is laid on the surface of the traditional concrete roof, and the cost is about 25 yuan/m2. Adoption of the BIPV system structure can save this procedure, saving about 250,000 yuan per 10,000 m2.




    Double waterproofing effect


    The Sunoren rooftop BIPV system is composed of longitudinal main guiding gutters and transverse secondary guiding gutters. When it rains, rainwater flows through the photovoltaic panels and is discharged to the gutter along the main and secondary guiding gutters to achieve double waterproofing effects.


Economic Benefits

Comparison of electricity costs (assuming that the electricity price of the power supply company is 1 yuan/kWh and the user’s annual electricity consumption is 8 million kWh)


  • Existing electricity consumption

  • Electricity consumption after the photovoltaic system is installed



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