Photovoltaic ‘golden roofs’ reduce carbon emissions, benefit enterprises in E China’s Zhejiang

Recently, the 45,000-square-meter rooftop solar photovoltaic power station of Zhejiang Mingde Precision Machinery Co Ltd, located in the Deqing Economic and Technological Development Zone in East China's Zhejiang Province, was connected to the grid for power generation.

This rooftop photovoltaic power station has a total installed capacity of 5.7 megawatts, capable of generating over 5.3 million kWh of electricity annually, reducing carbon dioxide emissions by 4,400 tons and generating revenue of 3.7 million yuan ($507,000) for the enterprise.

According to reports, Zhejiang Mingde Precision Machinery Co Ltd manufactures machinery and equipment components with a complete industrial chain of "casting + machining + product assembly."

During visits, staff from State Grid Huzhou Electric Power Supply Company discovered that a large portion of the company's factory roof remained undeveloped. They utilized the "Photovoltaic Sky Eye" platform to calculate the available area for rooftop photovoltaics, assess the potential of photovoltaic resources, and promote rooftop photovoltaic development for the enterprise.

In March this year, State Grid Huzhou Electric Power Supply Company fully leveraged its resources to support project advancement. They established a "Power Service Express" that provided one-stop services for business consultation and technical guidance throughout the process, from project application acceptance and access scheme formulation to construction design review and grid-connected acceptance and commissioning. The project was completed within six months, demonstrating the "acceleration" of power supply services.

Since the start of this year, State Grid Huzhou Electric Power Supply Company has focused on building the "greenest" energy consumption system. Together with government departments in Deqing county, it established the country's first county-level energy green transformation and development center to promote technological innovation, industrial upgrading, and new models in the energy sector.

The local power supply company has signed aggregation agreements for 420,000 kW of photovoltaic resources on the virtual power plant platform, with all energy storage users.

It has continued to develop the "observable, measurable, adjustable, and controllable" functions of distributed photovoltaics, enabling all 52 distributed photovoltaic dispatching terminals in Deqing county to be observable and measurable, with the total installed capacity of photovoltaic power generation reaching 201,200 kWh.