In recent years, with the acceleration of energy structure transformation, European countries have continuously increased their investment in energy storage technology, particularly in the industrial and commercial energy storage (ICES) sector, where a clear profit model has gradually emerged. Recently, a 4MWh energy storage system deployed in the Baltic state of Latvia has become another exemplary case study in promoting regional energy optimization and upgrades.
For businesses interested in energy storage development, especially those considering deploying CES, this case study is worth further investigation.
Located in Eastern Europe, Latvia has rapidly expanded into new energy sources in recent years, particularly relying on intermittent power sources such as solar power. Addressing the issues of unstable power generation and uneven electricity consumption has become a key challenge for local power companies.
The 4MWh energy storage system deployed this time is an expansion of an existing solar power plant in Latvia. Leveraging the Nordic Power Exchange's dynamic electricity pricing mechanism and incorporating AI-powered intelligent dispatching strategies, this system creates a flexible energy infrastructure capable of generating revenue, shaving peak demand, and ensuring supply.
Through "time difference arbitrage."
In mature electricity markets like Europe, peak-valley pricing has become mainstream. Energy storage systems can charge during low-price periods (such as late at night) and discharge during peak-price periods (such as morning and evening), profiting from the price difference. This approach is known as "peak-valley arbitrage."
This project utilizes two 1.25MW/2MWh containerized energy storage systems, totaling 4MWh. These systems enable multiple daily cycles of "low-storage, high-discharge." AI algorithms then optimize discharge timing to accurately capture every fluctuation in electricity prices.
The system's return on investment (IRR) is estimated to exceed 15%, a very attractive rate in Europe.
The deployed energy storage system boasts the following core technical advantages, making it a valuable reference for domestic enterprises:
Two 40-foot energy storage containers house 2,000 kWh battery cells with C5-level protection, which can withstand the harsh Baltic Sea climate of high humidity and salt spray. The modularization design of the entire system allows for a delivery cycle of just 65 days, resulting in easy installation and simple operation and maintenance.
The system possesses flexible off-grid and on-grid switching with automatic adjustment of system operating mode based on grid load status. This is suitable for stable operation during power shortage and frequent outage conditions, as well as for peak load shifting during conditions of stable grid status.
The energy storage system's built-in EMS controller tracks the operational state of the battery in real time, intelligently controlling the charge and discharge timing, improving overall system efficiency, and extending battery cell life. Cloud-based remote management is also available, allowing for easy centralized enterprise operation and maintenance.
The system has several hardware and software protection mechanisms, such as over-temperature, over-voltage, and short-circuit protection, to guarantee long-term stable operation even in the case of high-intensity operation or severe environments.
Many people assume that energy storage systems simply store and discharge electricity. However, in the industrial and commercial sector, they are more like a flexible power asset.
✅ Reduced Electricity Costs: Increase revenue through electricity price arbitrage or participation in power ancillary services.
✅ Enhanced Energy Independence: Participates particularly well in distributed photovoltaic users, increasing their self-use rate.
✅ Optimized Distribution Systems: Reduces peak loads and reduces pressure on transformers and distribution equipment.
✅ Improved Power Security: Serves as an emergency power source for critical equipment or data centers.
✅ Compatible with Carbon Trading: Complies with green and low-carbon policy trends and enhances corporate social value.
As a photovoltaic and energy storage integrator,Huijue Group is providing safe, intelligent, and efficient energy storage products and technological solutions to numerous countries and regions worldwide.
We provide turn-key services from system design and product customization to installation and commissioning and operations and maintenance management. We target to help businesses, industrial parks, and government agencies achieve pure energy independence and lower costs while optimizing efficiency.
