Solar canopies advance green public transit in Jinchang

State Grid Jinchang Power Supply Company recently conducted a pre-commissioning electrical inspection at the parking lot of Jinchang State-owned Public Transport Operation Co for its integrated photovoltaic and charging-pile project.

Through full-lifecycle power services, State Grid Jinchang is helping the operator cut costs, save energy, and pursue greener development.

The operator's two parking lots are demonstration sites for green transit in Jinchang. State Grid Jinchang has supported the project from the first charging piles and routine maintenance to the supporting solar station.

During charging-pile planning, its customer manager contacted the enterprise, surveyed site power use, optimized the distribution connection plan, and opened a streamlined channel for electricity applications.

These efforts ensured the charging stations were operational on schedule, providing a reliable power supply for the city's electric buses. After the stations entered service, State Grid Jinchang continued to conduct follow-up inspections, identify potential electrical hazards, help the operator manage electricity demand, and promptly address technical issues.

To reduce carbon emissions, the operator installed solar panels on its parking canopies, creating facilities that generate electricity on-site to charge electric buses.

The power company intervened early in planning, joined design reviews, and provided technical support on grid-connection standards, line capacity, and relay protection. It also anticipated load-fluctuation risks and addressed safety hazards at the source.

Before photovoltaics (PV) commissioning, maintenance staff re-inspected cables, switchgear, and metering devices, verified protection settings, checked for aging lines and overheating connections, and trained the operator's team on safe coordinated operation and daily maintenance of solar panels and charging piles.

Under the solar-on-top, charging-below model, PV power first charges the bus, with surplus electricity fed into the grid. This reduces operating electricity costs and supports the city's low-carbon transition.

Going forward, State Grid Jinchang will continue full-cycle power services for key enterprises, follow new-energy project progress, ensure reliable PV grid integration and charging-pile operation, improve the business environment, and support high-quality green transit development.