DMEGC Solar has completed the installation of a 4.3 MW photovoltaic project on the roof of a company specializing in engineering vehicle equipment in Hangzhou. According to the manufacturer, this plant uses internally developed lightweight modules designed to suit metal-structure rooftops with limited load-bearing capacity. The company states that these modules are 44% lighter than traditional panels of equivalent dimensions.
Color steel tile roofs, common in the industrial sector, present structural constraints that complicate the installation of conventional photovoltaic systems. Standard modules typically require costly reinforcement of the supporting structure. According to DMEGC Solar, its lightweight modules maintain standardized external dimensions and mounting interfaces compatible with traditional racking systems. The manufacturer specifies that certain areas of the module incorporate reinforced load-bearing design to maintain wind load resistance.
The plant operates on a self-consumption model with surplus injection into the grid. The electricity produced primarily powers the factory’s needs, thereby reducing dependence on the public grid. The injected surplus generates additional revenue for the operator.
According to data provided by DMEGC Solar, the project is expected to produce approximately 4.82 million kWh of electricity annually. The company estimates annual electricity bill savings at over $440,000 (3.2 million RMB). These projections remain subject to actual sunlight conditions and prevailing energy tariffs.
On the environmental front, the manufacturer claims that this production would be equivalent to saving approximately 1,446 tonnes of standard coal per year. Avoided carbon dioxide emissions would reach approximately 2,752 tonnes annually, according to the company’s calculations. DMEGC Solar compares this effect to planting more than 107,000 trees.
DMEGC Solar claims a place among the world’s top ten photovoltaic module manufacturers. The company markets a diversified range including all-black modules, anti-dust panels, anti-glare panels, as well as agrivoltaic solutions. The Infinity RT series represents, according to the manufacturer, its highest-performing line in terms of conversion efficiency.
This project in Hangzhou illustrates the growing demand for photovoltaic solutions adapted to the structural constraints of existing industrial buildings. The distributed solar market in China continues to develop, driven by decarbonization objectives in the manufacturing sector. The actual profitability of these installations will nonetheless depend on electricity price trends and surplus buyback policies.

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