Dual Empowerment of Coal Storage & Power Generation: Liupanshui Shuicheng Energy Achieves Green Upgrade via BIPV

Driven by the dual goals of carbon peaking and carbon neutrality as well as the energy revolution, traditional coal enterprises are facing unprecedented transformation pressure. As a core state-owned energy enterprise in Liupanshui, known as the "Coal Capital south of the Yangtze River", Guizhou Shuicheng Energy Group bears particularly prominent challenges: persistently high power costs, large idle rooftop areas of industrial buildings, and increasingly stringent carbon emission reduction requirements.

Against this backdrop, the group urgently needed a solution to convert idle rooftops into green assets without disrupting normal production, and evolve from a pure energy consumer to a clean energy producer. The answer lies in the metal rooftops of two newly built curved coal storage sheds, where a BIPV project has recently been successfully connected to the power grid.

Leap to Green Development: From Coal Capital to Modern Comprehensive Energy Base

The project utilizes a total rooftop area of approximately 88,000 square meters across the two coal sheds. Adopting LONGi CENTER INT 555Wp HPBC monocrystalline BIPV modules, the products are directly bonded onto metal panels without penetrating the original structure. This design fully guarantees the airtightness and safety of the coal sheds while enabling the dual functions of coal storage and power generation.

A total of 10,736 modules have been installed, with a total installed capacity of 5.95848 MWp. The project operates under the mode of self-consumption with surplus power fed to the grid. On-site generated electricity is prioritized for use by the coal storage and distribution center and surrounding facilities. Excess power is boosted and transmitted to China Southern Power Grid via one 10kV power line.

LONGi CENTER INT BIPV delivers tangible and substantial value. The rooftops originally used solely for coal storage have been transformed into a green power plant with an annual power output of nearly 6 million kWh. The self-generated clean electricity greatly cuts the company’s electricity bills, while surplus power connected to the grid brings additional revenue. Furthermore, the project qualifies for carbon asset trading and effectively mitigates potential carbon tax risks in the future.

Technological Innovation: Proven Solution for High-altitude Operation Scenarios

The project fully demonstrates the superior adaptability of LONGi CENTER INT BIPV for industrial applications at high altitudes. Located at an elevation of 1,826 meters, the site features frigid temperatures, intense ultraviolet radiation and drastic temperature swings, which set stringent requirements for PV modules and installation techniques.

The HPBC monocrystalline modules boast excellent weather resistance. The adhesive installation method keeps the original metal rooftops intact, ensures efficient construction and maintains the airtightness of coal sheds. Designed in line with the concepts of energy conservation, environmental protection and intensive land use, the project meets advanced domestic technical standards and serves as a replicable model for PV renovation of large-span industrial buildings in high-altitude regions.

In terms of scale and economic benefits, the project has an installed capacity of 5.95848 MW, with a total projected power generation of 146.9782 million kWh over its 25-year service life. Compared with thermal power generation of the same volume, it will save 44,196.34 tons of standard coal and reduce carbon dioxide emissions by around 121,110.04 tons in 25 years.

Photovoltaic power generation consumes no water and produces no wastewater, solid waste or exhaust gas. For Liupanshui, an ecologically sensitive area in the upper reaches of the Pearl River, the project delivers dual benefits of energy supply and ecological protection.

The clean power generated directly reduces electricity expenditure for Shuicheng Energy Group and its subsidiaries, while grid-connected surplus power creates steady earnings. In addition, this BIPV project works in synergy with the group’s ongoing 2 million tons/year coal coking circular economy project, comprehensive energy stations and other new energy power generation projects. It injects clean energy into the "coal-power-material-aluminum" industrial chain and raises the green premium of downstream products.

Integrated Coal & Power Development: Building a "Sunshine Forest" on Coal Sheds

As a key project supported by Guizhou’s provincial policies for distributed photovoltaics, this initiative makes full use of existing industrial rooftops. It requires no additional construction land and causes no disruption to coal storage and transportation, realizing the revaluation of land and space resources. It has set a practical benchmark for the green transformation of high-energy-consuming enterprises across the province, including those engaged in coal, coking and building materials.

From merely storing coal to integrating coal storage and power generation, from an energy consumer to a clean energy producer — the BIPV project at Liupanshui Coal Storage and Distribution Center marks a crucial step in the green transformation of traditional coal enterprises. Rooted in the coal industry yet embracing new energy development, it vividly embodies the development strategy of relying on coal, strengthening coal, and transcending coal. It stands as a remarkable milestone for the "Coal Capital south of the Yangtze River" on its journey toward the dual carbon goals.