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DRUPS for Mission Critical Infrastructure

Integrated DRUPS systems for uninterrupted critical power

For data centers, healthcare facilities, and other critical operations, even short power interruptions can have serious consequences.

BOS Power delivers fully integrated DRUPS systems designed, installed, and supported to maintain continuous power when the grid supply fails.

A DRUPS solution can help you achieve:

  • Zero transfer time between grid and backup power
  • Reduced footprint compared to traditional UPS and generator setups
  • High tolerance for transient loads and dynamic demand
  • Full lifecycle responsibility from engineering to 24/7 service
Talk to a DRUPS specialist
Secure operations 24/7 with DRUPS solution

When power fails, operations must continue

Grid instability is increasing, while power density and compliance requirements continue to rise across critical sectors. In data centers, healthcare facilities and other critical environments, even milliseconds of interruption can result in:

  • Data loss
  • System shutdown
  • Operational disruption
  • Regulatory consequences
  • Financial loss

DRUPS helps maintain continuous power without transfer delay and with lower system complexity.

What Is a DRUPS System?

DRUPS stands for Diesel Rotary Uninterruptible Power Supply.

It combines a diesel generator and a rotary UPS into one integrated unit. Unlike traditional setups where a static UPS and a generator operate as separate systems, DRUPS ensures continuous mechanical energy transfer without interruption.

How a DRUPS system works:

  1. The rotary unit provides continuous power conditioning.
  2. Kinetic energy storage bridges any grid disturbance.
  3. The diesel engine starts automatically during grid failure.
  4. The system continues supplying uninterrupted power without switching delays.

Why rotary instead of static UPS?

  • No battery dependency as primary backup
  • Higher tolerance for sudden load changes
  • Lower complexity
  • Reduced system interfaces
  • Simplified maintenance structure

For high-load, high-density environments such as AI-enabled data centers, this stability is critical.

DRUPS vs separate UPS and generator systems

Traditional backup power architectures often rely on separate UPS, battery, and generator systems.

Separate UPS + generator setup DRUPS
Separate systems Integrated solution
Larger footprint More compact design
Battery-based bridging Kinetic energy bridging
More interfaces to manage Fewer system interfaces
Multiple vendors and service points One integrated solution partner
The result is a more integrated critical power setup with fewer interfaces to manage.
Ensure constant operation of your data center with an emergency power solution
DRUPS for Data Centers

AI workloads and high-density server environments demand extreme stability and fast load acceptance.

DRUPS is ideal for:

  • Hyperscale and colocation data centers

  • Edge data centers

  • AI-driven high-performance computing environments

Healthcare-and-Life-Science-Hospitals_web
DRUPS for Healthcare and Laboratories

Hospitals and life science facilities depend on continuous power for life support systems, diagnostics, and laboratory operations.

DRUPS ensures:

  • Seamless protection of life-critical systems

  • Compliance-ready emergency power configuration

  • Reduced risk of system instability

  • Silent and emission-optimized configurations where required

Ensure constant operation of your facilities with an emergency power solution
DRUPS for Critical Infrastructure

Energy supply, water systems, transportation, and digital infrastructure cannot afford downtime.

DRUPS supports:

  • Grid-independent operation

  • High operational resilience

  • Harsh climate installations

  • Redundant parallel configurations

In mission-critical infrastructure, reliability must be engineered – not assumed.

System integration and service throughout the lifecycle

BOS Power delivers integrated DRUPS systems and long-term service support across the full lifecycle, including:

  • System engineering and design
  • Compliance documentation
  • Installation and commissioning
  • Functional and load testing
  • Preventive maintenance programs
  • Remote monitoring
  • 24/7 emergency response

This gives you one partner for engineering, commissioning, compliance, and long-term service support.

System configuration and capabilities

Technical Specifications

System Type: Diesel Rotary Uninterruptible Power Supply
Power Range: 250 – 2750 kVA

Configuration Options:

  • Open units
  • Canopy solutions
  • Containerized installations
  • Indoor or outdoor configurations

Capabilities:

  • Parallel operation for scalable redundancy
  • High transient load acceptance
  • Adaptable for noise-reduction requirements
  • Emission-optimized configurations
  • Designed for harsh Nordic climate conditions

Each system is configured according to site conditions, performance requirements, and redundancy strategy.

System Integrator

Talk to our specialists

Throughout the creation process and the entire lifecycle, you can count on us to take responsibility for your complete emergency power solution.

Your technical needs and requirements are the starting point for the solution we create as you deserve a system that runs smoothly and delivers maximum value over time.

Would you like to know more about DRUPS? Connect with sales & product experts.

  • NORWAY
  • DENMARK
  • FINLAND
  • SWEDEN
TOUCH
Arild Jensen General Manager

Sales | Power Generation

t. +47 916 65 281
Arild Jensen General Manager
TOUCH
Gunnar Aasbø Senior Sales Manager

Sales | Power Generation

t. +47 95 208 070
Gunnar Aasbø Senior Sales Manager
TOUCH
Espen Kristiansen Senior Sales Manager

t. +47 476 54 844
Espen Kristiansen Senior Sales Manager
TOUCH
Søren Gregersen Solution Manager Emergency Power

Sales | Power Generation

t. +45 514 02 207
Søren Gregersen Solution Manager Emergency Power
TOUCH
Kim Strate Kiegstad Head of Energy Storage

Fast charging station | Energy Storage

t. +45 53 60 13 30
Kim Strate Kiegstad Head of Energy Storage
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Jussi Mäkninen Sales Director Data Center, International

Sales | Power Generation

t. +358 406 208 918
Jussi Mäkninen Sales Director Data Center, International
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Fredrik Petersson Country Sales Director

t. +46 761 458 035
Fredrik Petersson Country Sales Director
TOUCH
Christian Wober Area Sales Manager

Sales | Power Generation

t. +46 702 9584 42
Christian Wober Area Sales Manager
TOUCH
Per Lundgren PreSales Engineer

Sales | Power Generation

t. +46 660 72 813
Per Lundgren PreSales Engineer

FAQ

What is the difference between DRUPS and UPS?

A traditional UPS is typically battery-based and requires a separate generator. DRUPS integrates rotary UPS technology and a diesel generator into one system, reducing complexity and transfer risk.
Is DRUPS suitable for data centers? Yes. DRUPS is particularly well suited for data centers with high transient loads and strict uptime requirements.
How does DRUPS handle sudden load changes? Rotary technology allows DRUPS systems to absorb large load variations without voltage instability.
How long can a DRUPS system operate without grid power? As long as fuel supply is maintained, the diesel generator can sustain operation independently of the grid.
What maintenance is required?

Preventive maintenance programs are recommended to ensure continuous readiness. BOS Power provides full lifecycle service and 24/7 support.
Is DRUPS compliant with Nordic regulations? Systems are engineered to meet applicable national and sector-specific compliance requirements.