Merus® PCS
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
