SOLUTIONS
SOLUTIONS

SOLUTIONS

New Energy Grid-Connection Support Scenarios

 

Core positioning:

Addressing the industry challenges of "unstable power output and low consumption rates" in photovoltaic and wind power is a critical enabler for new energy plants to qualify for grid connection, perfectly aligning with the grid control needs under the growing trend of high-proportion renewable energy integration.

 

Technology and Value Deepening (Solution Details):

Core Technical Solution:

Featuring high-cycle-life lithium iron phosphate cells (with a cycle life exceeding 6,000 cycles under 80% DoD conditions), combined with grid-forming control technology, this system dynamically adjusts the energy storage charging and discharging power in real time by continuously monitoring fluctuations in renewable energy output. As a result, the system can boost the renewable energy integration rate from the industry average of 85% to over 95%. For large-scale power plants, a standardized containerized energy storage cabinet design is employed, offering individual cabinet capacities ranging from 2 to 5 MWh. These cabinets can be easily expanded by connecting multiple units in parallel. Importantly, under the same total capacity requirements, this innovative approach reduces the number of cabinets needed by 15% compared to conventional solutions—significantly cutting down on both floor space and installation costs.
Intelligent Control Solution: Equipped with an AI-based power forecasting system, this solution integrates multi-dimensional data—including meteorological satellite data, historical power generation curves, and real-time irradiance monitoring—to build a 72-hour rolling prediction model with a forecast error rate of ≤5%. Paired with a millisecond-level power regulation module (response time <100ms), it can effectively mitigate over 90% of short-term power fluctuations occurring within 10-minute intervals, ensuring compliance with the grid’s stringent requirement of “±2% power deviation.” This ensures that grid operators avoid costly penalties associated with power output fluctuations during grid integration.

 

Long-duration energy storage adaptation solution

To address the "nighttime consumption" and "cross-day peak-shaving" demands of new energy power plants, a flexible "lithium-battery + lithium-battery" tiered energy storage solution has been developed (featuring short-term peak-shaving lithium-battery modules paired with long-duration lithium-battery modules). The short-term modules handle fluctuations within 0–4 hours, while the long-term modules provide capacity support for the 4–8 hour period. By employing a time-of-use charging and discharging strategy, this system balances response speed with the need for extended energy storage. Drawing from the experience of the Northwest demonstration project, the cost per kilowatt-hour can be kept below 0.6 yuan, significantly lower than the industry average of 0.8–1.0 yuan/kWh.