Wenergy has launched one of China’s largest mobile battery energy storage system (BESS) projects in Hengdian, the nation’s premier film production hub. The 34.7MWh mobile energy storage fleet is replacing diesel generators, delivering clean, silent, and reliable power for film crews.

From Diesel Generators to Mobile Energy Storage

Known as the “Hollywood of China,” Hengdian hosts hundreds of film crews year-round. Behind the scenes, reliable power is essential. For years, diesel generators were the primary solution for on-set electricity. Today, Wenergy is transforming film set power supply with a large-scale, trailer-mounted mobile energy storage system.

With Phase I and II underway, the project will reach 16.7MW / 34.7MWh in total capacity. In Phase I, Wenergy deployed five trailer-mounted ESS units to multiple productions, ensuring stable, high-capacity electricity for demanding filming schedules.

Phase II, launched in 2025, will add 70 more units, enabling simultaneous service for multiple crews during peak periods. This shift from temporary diesel generation to intelligent battery energy storage marks a new era of safety, efficiency, and sustainability in film production.

Why the Film Industry is Turning to Battery Energy Storage Systems

Film sets require high-reliability, on-demand electricity, but diesel generators come with clear drawbacks:

• High operating costs – fuel and maintenance far exceed grid-connected options.

• Noise pollution – engine noise disrupts live sound recording and on-set atmosphere.

• Carbon emissions – incompatible with China’s dual-carbon targets.

• Operational risks – theft, emissions, and safety hazards increase management complexity.

With the rise of electric vehicles in film crews, the demand for overnight charging and flexible high-load supply has made mobile battery energy storage systems the preferred alternative.

Trailer-Mounted ESS: Purpose-Built for Film Production

Wenergy’s trailer-mounted mobile ESS is designed for off-grid and mobile scenarios like film production:

• Flexible deployment – rapid relocation to follow production schedules.

• Silent, zero-emission power – clean energy without engine noise or exhaust.

• Dual value creation – supports peak shaving, valley filling, and energy arbitrage.

• Comprehensive safety systems – iBMS/iPCS/iEMS intelligent control, aerosol & water-based fire suppression, and active fault monitoring.

Zero-Emission Energy Solutions for the Film Industry

The move from “diesel roar” to “storage silence” is more than a drop in decibels—it’s a step toward zero-carbon film production. Wenergy’s mobile energy storage solution in Hengdian not only powers clean, silent film sets but also sets a scalable benchmark for other temporary and outdoor power applications.

As technology evolves, mobile battery energy storage systems will become increasingly vital across industries. Hengdian’s transformation today could be the blueprint for a greener tomorrow in countless sectors.

About Wenergy
Wenergy is a trusted one-stop energy storage manufacturer, providing end-to-end solutions from battery R&D to system integration. Our portfolio includes utility-scale, commercial & industrial, and mobile energy storage systems, serving global markets with high-performance, certified products and responsive service.