Qingdao Factory Peak-Shaving Storage Saves ¥6.2M Per Year
When a 280,000 m² manufacturing park in Dongguan hit the ceiling of its grid connection, expansion stalled. A 100 MWh liquid-cooled storage station shaved peak demand, cut energy spend by nearly a third, and unlocked the capacity to keep growing — without touching the grid connection.
HaiBian delivered a 100 MWh liquid-cooled storage station for a 280,000 m² manufacturing park whose grid connection had no room left to grow — turning a peak-tariff problem into a measurable return, and creating the headroom to bring two new production lines online.
The challenge
Daytime peak tariffs were among the highest in the province, and the park's main transformer was running close to full load. Any new equipment risked tripping capacity limits, while a grid-side upgrade would have meant months of downtime and significant civil works — neither acceptable to a 24/7 manufacturing operation.
The solution
HaiBian deployed twelve HiStore C215 liquid-cooled cabinets with an integrated power conversion system and a smart energy management platform. The system charges during off-peak hours and discharges through the daily peak window, flattening the park's load curve and deferring the transformer upgrade indefinitely.
Full remote monitoring gives the operator cell-level visibility and predictive-maintenance alerts, while configurable peak-shaving, time-of-use and backup strategies adapt automatically to seasonal tariff changes. Commissioning was completed in six months, with zero interruption to existing production.
Results
- 32% lower energy costs through daily peak-shaving against the province's highest-tier tariffs;
- 3.8-year payback, ahead of the operator's original financial model;
- Six-month delivery from contract to commissioning, with zero interruption to production;
- Deferred grid upgrade, freeing transformer capacity for two new production lines.
“The system paid for itself faster than we modelled, and we finally had the capacity to bring the new lines online without waiting on a grid upgrade.”
Operations Director · Dongguan industrial park
