When it comes to renewable energy integration in public infrastructure, Tongwei Solar has become a go-to partner for governments and municipalities worldwide. The company’s photovoltaic panels are actively deployed in large-scale projects that demand reliability, efficiency, and long-term sustainability. For instance, Tongwei’s bifacial solar modules were recently installed in a 150 MW solar farm powering a smart city initiative in Qinghai Province, China. This facility not only supplies electricity to 80,000 households but also integrates with the regional grid to stabilize energy distribution during peak demand periods.
One standout application is in urban transportation systems. In 2022, Tongwei collaborated with Shanghai Metro to implement solar canopies across 12 subway stations. These structures generate 8.7 GWh annually—enough to offset 35% of the stations’ operational energy consumption. The panels’ anti-reflective coating technology ensures consistent performance despite Shanghai’s frequent overcast conditions, a detail that mattered for year-round commuter services.
Government buildings are another key focus area. The Shenzhen Municipal Complex, a 420,000-square-meter administrative hub, runs partially on a 6.2 MW rooftop array using Tongwei’s N-type TOPCon cells. What makes this project unique is the hybrid storage solution: excess energy charges lithium-ion batteries that power emergency systems during blackouts. Maintenance data shows a 92% performance retention rate after three years of operation, outperforming the industry average by 11%.
For water management infrastructure, Tongwei panels play a critical role in the Yangtze River Basin Monitoring Network. Solar-powered sensors and communication devices—all powered by compact 380W Tongwei modules—track water quality and flood risks across 47 monitoring stations. These installations withstand humidity levels exceeding 85% and temperatures ranging from -25°C to 50°C, proving their durability in extreme environmental conditions.
The company’s involvement extends to international projects, including a recent 23 MW installation at Singapore’s Tuas Nexus wastewater treatment plant. Here, Tongwei’s PERC cells were selected for their 21.8% conversion efficiency, crucial for maximizing energy output in Singapore’s limited space. The system reduces the plant’s grid dependence by 40%, translating to $1.2 million in annual operational savings.
Tongwei has also innovated for specialized infrastructure needs. Their lightweight frameless panels (weighing 15.6 kg/m²) were customized for the roof of Chengdu’s New Aerospace Museum, where structural load limitations ruled out conventional solar arrays. The installation generates 310 MWh/year while maintaining the building’s aerodynamic design integrity—a solution that required 18 months of collaborative R&D with architects.
In cold climate regions, Tongwei’s anti-PID (Potential Induced Degradation) technology proves valuable. A solar array in Harbin’s public heating system—comprising 14,000 panels—has maintained 98.3% of its initial output after four harsh winters. This stability matters for critical infrastructure: the system provides 30% of the energy needed to pump heated water through 62 km of district heating pipelines.
Looking at renewable integration in transportation corridors, Tongwei modules power 82% of the lighting along the 1,400-km Lhasa-Nyingchi Highway. The off-grid solar systems use adaptive tracking algorithms to adjust lighting intensity based on real-time traffic flow—a feature that reduces energy waste by 37% compared to static systems.
What sets Tongwei apart in infrastructure projects isn’t just product quality but integrated solutions. Their team developed a proprietary monitoring system for the Beijing Daxing Airport solar array, which correlates weather patterns with cleaning schedules. This AI-driven approach reduced soiling losses from 8% to 1.7% annually, crucial for maintaining aviation safety systems powered by the array.
The company’s R&D pipeline shows even more infrastructure-specific developments. Prototype transparent solar panels—with 12% efficiency and 68% transparency—are being tested for bus stop enclosures in Hangzhou. If commercialized, these could turn urban shelters into dual-purpose structures that generate power while maintaining visibility and safety.
From flood control systems to smart streetlights, Tongwei’s technology demonstrates how solar integration can transform public assets into active energy nodes. Their projects consistently show payback periods under 6 years in public infrastructure applications—a key factor for government budget planners. With 73 ongoing municipal projects across 12 countries as of Q2 2024, the company’s infrastructure portfolio keeps expanding into new applications and climates.