Data Center Backup Power
Generator Solutions for Data Centers
Your data center promises always-on availability. PowerGen delivers the backup power infrastructure to keep that promise — with N+1 redundancy, automatic transfer, and proactive maintenance that satisfies the most demanding uptime SLAs.
Trusted by Leading Data Center Operators
Why Data Centers Cannot Afford Power Gaps
Uptime SLA Commitments
Your customers expect 99.999% availability. A single unplanned outage can breach SLAs, trigger penalties, and erode trust built over years.
Data Integrity
Abrupt power loss risks corrupted databases, failed transactions, and lost writes. Clean backup power ensures graceful operations during grid failures.
Cooling Continuity
Servers generate enormous heat. Losing cooling for even minutes can trigger thermal shutdowns and hardware damage across entire racks.
Compliance & Audits
SOC 2, Uptime Institute certifications, and NFPA 110 all require documented, tested backup power. Non-compliance jeopardizes your certifications.
Built for Mission-Critical Uptime
Every component of your backup power system is designed, installed, and maintained to eliminate single points of failure.
N+1 Redundancy Design
We design systems with redundant generators so a single unit failure never takes your facility offline. True N+1 means no single point of failure.
Automatic Transfer Switches
Sub-10-second transfer to generator power with automatic retransfer when utility is restored. Coordinated with your UPS for zero-gap coverage.
Load Bank Testing
Regular full-load testing verifies your generators can handle real-world demand — not just idle at no load. We test to 100% of rated capacity.
Fuel Management
Fuel polishing, tank monitoring, and scheduled deliveries ensure your generators have clean, fresh fuel ready for extended runtime events.
Compliance & Certification Support
Uptime Institute Tiers
Tier II through Tier IV facilities require increasingly robust power redundancy. We design and maintain systems that meet your target tier certification.
NFPA 110
Emergency and standby power systems must be installed, tested, and maintained per NFPA 110. Our programs cover monthly testing and annual load bank verification.
SOC 2 Type II
Auditors verify that backup power is tested, documented, and reliable. Our detailed service reports provide the evidence your compliance team needs.
Generators for Data Centers
Mission-critical standby power for colocation, hyperscale, and edge deployments.
Caterpillar
Cat 3512
1000 kW diesel with CAT 3512 V-12. Best resale value in class. ~200 US dealers with parts availability back decades.
1 MW standby · Diesel · Liquid-cooled
1000-1400 kVA diesel generator with Cat 3512 V-12 engine. 51.8L displacement, Woodward governor, continuous/prime/standby ratings.
Caterpillar
Cat 3512B
1500 kW diesel with CAT 3512B V-12. Best resale -- retains 15-25% more than Cummins/MTU. Deepest parts network.
1.5 MW standby · Diesel · Liquid-cooled
1230-1500 kW diesel generator with Cat 3512B V-12 engine. EUI fuel system, EMCP 4.2B controller, mission-critical and standby ratings.
Cummins
Cummins QSK38
1160 kW diesel with QSK38 engine. Full Cummins vertical integration. Paralleling for multi-MW. 10-15% below CAT.
1.2 MW standby · Diesel · Liquid-cooled
1160 kW standby / 965 kW prime diesel generator with QSK38-G5 37.7L V12 MCRS engine. EPA Tier 2, 2P2L cooling, 24V starting. Engine dimensions 2081 x 1492 x 1860 mm, dry weight 4100 kg.
Cummins
Cummins QSK50
1500 kW diesel with QSK50 engine. Full Cummins vertical integration. Paralleling for multi-MW. 10-15% below CAT 3512.
1.5 MW standby · Diesel · Liquid-cooled
1500 kW standby / 1365 kW prime diesel generator with QSK50-G4 50.3L V16 MCRS engine. EPA Tier 2 and TA Luft compliant, 2P2L cooling, 24V starting. Engine dimensions 4674 x 2468 x 3100 mm, dry weight 7429 kg.
Generac
Generac SD1250
1250 kW industrial diesel with Mitsubishi engine. Competitive pricing vs CAT/Cummins. Paralleling for multi-MW systems.
1.3 MW standby · Diesel · Liquid-cooled
1,250 kW standby diesel generator with Mitsubishi S12R-Y2PTAW-1 49.0L V12 engine. EPA Tier 2 certified. Three-phase 277/480V and 346/600V. UL2200 listed.
Generac
Generac SD1500
1500 kW industrial diesel with Mitsubishi engine. Cost-effective alternative to CAT 3512 class. Multi-MW paralleling.
1.5 MW standby · Diesel · Liquid-cooled
1,500 kW standby diesel generator with Mitsubishi S16R-Y2PTAW-1 65.4L V16 engine. EPA Tier 2 certified. Three-phase 277/480V and 346/600V. UL2200 listed.
Resources & Services
Recommended Product Families
cummins
Cummins D6 Commercial Diesel
80–350 kW Tier 3 commercial diesel from Cummins — QSB5, QSB7, and QSG12 platforms with PowerCommand integration.
80–350 kW
Paralleling capability for N+1 redundancy configurations
View specs →kohler
KD Series (Industrial Diesel)
Kohler-engineered megawatt-class diesel gensets from 900 to 4000 kW for mission-critical facilities.
900–4000 kW
Premium power quality with sub-3% THD for sensitive IT loads
View specs →Application Engineering
Multi-brand engineering support on every project
Data centers require paralleling-capable generators with sub-3% THD and N+1 redundancy. Our engineers size and configure the right system for your uptime tier.
Keep Your Data Center Always On
PowerGen designs and maintains backup power systems for the most demanding uptime requirements. Let us build a solution for your facility.