Merus® PCS
Power Conversion System
Our Power Conversion System is an integral part of our battery energy storage system, designed and built in-house for scalability, efficiency, and reliable performance in all conditions.
The highest power on the market under a single grid connection
The Merus® PCS (Power Conversion System) sets a new standard for energy storage and grid support with its unmatched 5 and 10 MVA AC block capacity. Designed for modern energy systems, it delivers maximum performance and efficiency under a single grid connection.
Its modular design enables scalable, tailor-made energy solutions for every customer. With decades of experience in power electronics, Merus Power delivers reliable, high-performance systems built to last. We are at the forefront of grid-forming technology, with Merus® ESS, the first TSO-approved grid-forming BESS in the Nordics, built using Merus® PCS.
Our expertise helps clients stay ahead as new standards emerge worldwide. Built for the harshest conditions, our systems operate reliably even at -40°C, in snow and ice. As a European manufacturer, we prioritize safety, durability, and cybersecurity in every design to ensure long-term performance.
Merus® PCS is designed and built to last
- 690 V – 800 V AC and 1.5 kV DC operation
- High availability with minimal maintenance requirements
- Designed and engineered for long investment lifetimes
- Peak efficiency of 98.8%
- Developed and tested in demanding Nordic conditions, with an operating temperature range from -40°C to +50°C
Key features of Merus® PCS
- Grid-forming capability: The first TSO-approved (Transmission System Operator) grid-forming BESS (Battery Energy Storage System) in the Nordics is built with Merus® PCS technology.
- Integrated PPC/EMS: The integrated PPC (Power Plant Controller) and EMS (Energy Management System) are designed together with the PCS to ensure seamless operation and optimal system reliability.
- Plug and play deployment: Easy and efficient installation on site.
- Unlimited scalability: Suitable for systems of any size.
- Optimized efficiency: Fewer MV (medium voltage) feeders are needed thanks to the unit’s high power, maximizing overall system efficiency.
- Proven durability: Built on decades of experience in power electronics, ensuring robust and long-lasting performance.
- Reliable operation: Carefree performance with a guaranteed 98% availability.
- Top-tier efficiency: Achieves a peak one-way efficiency of 98.8%, including auxiliary power use – the best overall efficiency in the market across the entire battery DC voltage range.
- Seamless DC integration: Compatible with all standardized DC blocks available on the market.
Merus Power offers two flexible installation options designed to meet different project requirements. Systems are available in 5 MVA and 10 MVA configurations, featuring either a single or double Merus® PCS string. Both options include a transformer and are easily scalable if higher power capacity is needed. The Merus® PCS is fully designed and manufactured in-house, ensuring top-quality performance, reliability, and seamless integration with your grid.
5 MVA at any medium voltage level
with one medium voltage feeder
- Transformer:
- Two-winding transformer
- Oil-immersed or dry-type transformer, according to project requirements
- Single 5 MVA PCS string:
- AC- and DC converters
10 MVA at any medium voltage level
with one medium voltage feeder
- Transformer:
- Three-winding transformer
- Oil-immersed or dry-type transformer, according to project requirements
- Double 5 MVA PCS string (10 MVA)
- AC- and DC converters
Note: The illustration of the layouts serves only as an example optimized for a longitudinal site deployment. The layout can be adjusted, for example, to a “box” layout depending on the site.
Interested in seeing how Merus Power’s PCS looks at your site?
By filling out the form, you can download the materials needed to plan and assess how the Merus® PCS layout fits your site. The package includes Site Planning Data and .dwg files for layout design.