Oilfield Application Case – Oil Production Plant No. 4

2025-12-18

A 30 kW/100 kWh integrated photovoltaic–storage near-zero-carbon energy storage demonstration facility has been established at Well Jing 25-6 in the North China Oilfield.
It has withstood the nearly -20°C low-temperature test in Hebei Province and is operating normally.
Even in winter, fully carbon-neutral operation is achievable as long as the weather is clear.
During rainy weather, the system switches to peak–valley mode, and the stored off-peak electricity is sufficient to meet the entire day’s operational needs.
The cloud platform enables 24/7 uninterrupted monitoring across the entire country.
Sodium-ion batteries exhibit excellent cycling stability, with a state-of-health approaching 100% to date.