Q: Is Merus Power’s grid-forming battery energy storage system the first of its kind in the Nordics?

Yes, it is. Merus ® ESS in Valkeakoski, Finland, is the first grid-forming (GFM) battery energy storage system (BESS) in the Nordic region. It meets Fingrid’s grid-forming requirements, provides black start capability, and has successfully passed demanding simulation and site tests. Read more

Q: What benefits do energy storage bring to businesses?

Merus ® ESS provides businesses with multiple advantages: lower energy costs through peak shaving, new income from frequency reserve markets, enhanced power quality, and reduced equipment wear. It also enables smoother integration of renewables, strengthening sustainability strategies.

Q: Are energy storage systems safe?

Merus ® ESS is designed with strong safety features. It is Arctic-grade, capable of operating in –40 °C conditions, and is built for resilience in coastal and snowy climates. It also meets stringent cybersecurity and physical safety standards, with cooperation from local fire departments and authorities.

Q: Are energy storage systems efficient?

Merus ® ESS achieves system efficiencies of 95–98%. Its in-house engineered Power Conversion System (PCS), Energy Management System (EMS), and optimized outdoor design all contribute to reliable and efficient operation.

Q: When and how is the stored electricity used?

Merus ® ESS discharges electricity when the grid needs it, for example, during periods of renewable energy production gaps, peak demand, or sudden frequency deviations. In microgrids, it buffers renewable power and releases it during demand peaks or outages, ensuring reliability and market participation.

Q: How do energy storage systems integrate with different technologies?

Merus ® ESS integrates seamlessly with different technologies, such as microgrids, wind, solar, and hydropower plants. It smooths out fluctuations in renewable output, provides black start capability, enhances power quality, and supports frequency regulation.

Q: What is Merus ® ESS?

Merus ® ESS is Merus Power’s high-power, fast-reacting battery energy storage system (BESS), designed and manufactured in Finland by Merus Power. It combines advanced lithium-ion technology with Merus Power’s in-house engineered Power Conversion System (PCS), Energy Management System (EMS), and control software. Merus ® ESS has a modular and scalable structure, Arctic-grade durability, and high safety and cybersecurity standards. Merus Power offers the Merus ® ESS as a turnkey delivery, covering everything from design and engineering to installation, commissioning, and long-term service.

Question 1

Is Merus Power’s grid-forming battery energy storage system the first of its kind in the Nordics?

Accepted Answer

Yes, it is. Merus^® ESS in Valkeakoski, Finland, is the first grid-forming (GFM) battery energy storage system (BESS) in the Nordic region. It meets Fingrid’s grid-forming requirements, provides black start capability, and has successfully passed demanding simulation and site tests. Read more

Question 2

What benefits do energy storage bring to businesses?

Accepted Answer

Merus^® ESS provides businesses with multiple advantages: lower energy costs through peak shaving, new income from frequency reserve markets, enhanced power quality, and reduced equipment wear. It also enables smoother integration of renewables, strengthening sustainability strategies.

Question 3

Are energy storage systems safe?

Accepted Answer

Merus^® ESS is designed with strong safety features. It is Arctic-grade, capable of operating in –40 °C conditions, and is built for resilience in coastal and snowy climates. It also meets stringent cybersecurity and physical safety standards, with cooperation from local fire departments and authorities.

Question 4

Are energy storage systems efficient?

Accepted Answer

Merus^® ESS achieves system efficiencies of 95–98%. Its in-house engineered Power Conversion System (PCS), Energy Management System (EMS), and optimized outdoor design all contribute to reliable and efficient operation.

Question 5

When and how is the stored electricity used?

Accepted Answer

Merus^® ESS discharges electricity when the grid needs it, for example, during periods of renewable energy production gaps, peak demand, or sudden frequency deviations. In microgrids, it buffers renewable power and releases it during demand peaks or outages, ensuring reliability and market participation.

Question 6

How do energy storage systems integrate with different technologies?

Accepted Answer

Merus^® ESS integrates seamlessly with different technologies, such as microgrids, wind, solar, and hydropower plants. It smooths out fluctuations in renewable output, provides black start capability, enhances power quality, and supports frequency regulation.

Question 7

Why are battery energy storage systems useful?

Accepted Answer

Battery storage systems are the fastest-responding assets on the grid, capable of delivering full power in under a second. This makes them essential for handling sudden fluctuations in supply or demand and preventing blackouts. They allow renewable energy, such as wind and solar, to be stored during periods of surplus and released when generation drops. This improves grid stability, enables the reliable use of more clean energy, reduces peak demand costs, and avoids the need for expensive backup plants or overbuilding of generation capacity. Merus^® ESS delivers these capabilities with exceptional speed and reliability. It reacts in less than 0.1 seconds to grid events, providing critical frequency regulation and storing excess power when production is high so it can be used when demand increases or renewable generation falls. This fast response strengthens grid reliability, reduces reliance on carbon-intensive backup power, and maximizes the value of renewable energy investments.

Question 8

What is Merus^® ESS?

Accepted Answer

Merus^® ESS is Merus Power’s high-power, fast-reacting battery energy storage system (BESS), designed and manufactured in Finland by Merus Power. It combines advanced lithium-ion technology with Merus Power’s in-house engineered Power Conversion System (PCS), Energy Management System (EMS), and control software. Merus^® ESS has a modular and scalable structure, Arctic-grade durability, and high safety and cybersecurity standards. Merus Power offers the Merus^® ESS as a turnkey delivery, covering everything from design and engineering to installation, commissioning, and long-term service.

Supporting a 20 MW wind farm with one of the Nordic’s largest energy storage systems

Merus® ESS – Energy Storage System