Overview#
The Hipower HRMW-1150 is a 1,150 kW trailer-mounted diesel generator — the rental-ready, highway-towable version of Hipower's MTU-powered 1 MW-class generator platform. Built in Olathe, Kansas on the same MTU 16V2000 engine platform as the stationary HMW-1020 and HMW-1205, the HRMW-1150 brings 1+ MW of mission-critical power generation to any site accessible by road. EPA Tier 4 Final and CARB compliant, it is deployable throughout California and all regulated states for temporary power applications.
The HRMW-1150 is the tool of choice for data center commissioning, disaster recovery bridge power, and utility substation backup when permanent generation is unavailable or under repair. At 1,150 kW, a single unit can power an entire data center critical bus row, sustain a hospital essential electrical system during a generator plant outage, or keep a transmission substation operational during utility infrastructure repairs.
MTU Engine Platform#
The HRMW-1150 uses the MTU 16V2000 engine family — the same 16-cylinder, approximately 32-liter turbocharged-aftercooled platform that powers the stationary HMW-1020 and HMW-1205 models. MTU (Rolls-Royce Power Systems) rates the 2000 series for 30,000+ hours TBO, which matters for rental fleet operators because high-cycle rental units accumulate hours faster than most permanent installations.
The 16V2000's robust construction for repeated cold starts, varying ambient conditions, and variable load profiles makes it well-suited for rental deployment across diverse site conditions. MTU's SCR Tier 4 Final system meets CARB requirements, enabling unrestricted deployment in California Air Quality Management Districts without variance or exemption processes beyond standard emergency standby provisions.
Rental Deployment Design#
The HRMW series is built specifically for temporary deployment scenarios:
- Highway-towable: Road-ready trailer configuration for transport to any accessible site — data center, hospital, substation, or construction project
- Oversize load considerations: At 1,150 kW, the trailer footprint and weight may require transport permits depending on route and jurisdiction. Allow 2+ weeks for permit procurement in California
- Rapid connection: Designed for quick fuel connection, exhaust termination, and cable connection to temporary distribution panels or permanent switchgear with temporary jumpers
- Extended runtime capable: Large onboard fuel capacity for extended autonomous operation; external bulk fuel delivery connection for long deployments
- CARB Tier 4 Final: Deployable in California without Air District variance for emergency applications under Title 17 exemptions
Typical Deployment Scenarios#
Data center commissioning (30-90 days): The most common HRMW-1150 deployment. When a hyperscale or colocation data center is in the final stages of construction, the permanent generator plant may not be operational yet — but IT equipment is being installed and tested. The HRMW-1150 provides bridge power for commissioning activities, UPS testing, and early tenant occupancy while permanent generators are installed, commissioned, and AHJ-inspected.
Disaster recovery bridge power: When a critical facility's permanent generator fails — engine casualty, alternator fault, or major maintenance event — the HRMW-1150 can be on-site within hours to restore standby power coverage until the permanent unit is repaired or replaced. This is particularly valuable for hospitals and data centers that cannot operate below N+1 standby coverage.
Utility substation backup: Electric utilities use HRMW-class rental generators to maintain substation transformer protection and SCADA systems during planned maintenance outages or equipment failures on the distribution system.
Service and Maintenance#
For rental deployments, HRMW-1150 service follows the same MTU 16V2000 intervals as the stationary HMW models: 500-hour oil and fuel filter changes, 1,000-hour air filter, 4,000-hour DEF injector inspection. For a 60-90 day deployment at moderate load, the unit will typically require one oil service during the rental period. Fuel system connections must be inspected at each new site for contamination. DEF purge is especially critical on rental units that may sit between deployments — crystallized urea in the dosing injector is the most common issue on machines returning from field storage.
Trailer road equipment — tires, wheel bearings, brakes, lights — must be inspected per DOT requirements at each redeployment.
Our Service Experience#
OnPoint Generators delivers and supports HRMW-1150 rental deployments throughout Northern California. We handle transport permitting, site setup, fuel delivery coordination, daily monitoring, and on-call service for the deployment period. Our MTU-certified technicians provide commissioning services at delivery and respond to any fault conditions during the rental term. For data center operators commissioning new facilities or facilities managers managing a permanent generator outage, OnPoint provides turnkey HRMW-1150 rental service with zero-gap coverage from delivery to recovery.
