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CEEC Energy Storage System Powers Wind Energy Transition in Altay, Xinjiang

Operational Impact‌

  1. Energy & Environmental Benefits:
    • Annual generation: 780 million kWh, powering 260,000 households.
    • Annual carbon reduction: 618,000 tons, SO₂ reduction: 20,300 tons.
  2. Technical & Economic Breakthroughs:
    • Curtailment reduced from 8% to 1.5%, grid flexibility improved by 50%.
    • Green power cost: 0.35-0.38 RMB/kWh, yielding annual revenue of ~270 million RMB.
  3. Industry Leadership:
    • Xinjiang’s first gigawatt-scale wind-storage project, recognized as a national innovation model.
    • Created 800+ local jobs, fostering clean energy clusters and supporting Xinjiang’s energy hub ambitions.

Date

August , 2022

Client

Altay

Category

PV & Wind EssProjects

Location

Xinjiang

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Project Context

   Located in northern Xinjiang, Altay is a rare hub for hydro, wind, and solar resources, offering ideal conditions for clean energy development. CEEC’s 250MW wind-storage hybrid project in Jeminay County addresses grid integration challenges by deploying a 25MW/50MWh Energy Storage System (ESS), complying with policy requirements (10% capacity, 2-hour discharge) to enable large-scale renewable energy integration

  • The total area of wind regions available for development and utilization reaches 150,000 square kilometers, with an installable capacity exceeding 80 million kilowatts. Onshore wind energy resources account for nearly 40% of the national total
  • At a height of 10 meters, the wind power density reaches 150–500 W/m, wind speed ranges from 3–20 m/s, and the annual effective wind speed hours total 4,500–6,700. The installable capacity in some areas reaches 13.6 million kilowatts, demonstrating stable wind conditions, long-duration availability, and high development value

Engineering Solution

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  CEEC adopted an intelligent wind-storage coordination system:

  • High-Capacity Energy Storage: A 25MW/50MWh lithium iron phosphate ESS stabilized grid operations with millisecond-level response
  • Low-Temperature Turbines & Smart O&M: 40 Goldwind GW165-6.25MW turbines with AI-driven O&M reduced costs by 30%, achieving 99.8% availability
  • Cross-Regional Grid Connection: A 220kV substation integrated the project into Xinjiang’s main grid for power transmission to Urumqi.

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