What makes the HRMW-1150 different from the stationary HMW-1020 or HMW-1205?

The HRMW-1150 is the trailer-mounted rental version of Hipower's approximately 1,150 kW MTU-powered generator. Unlike the stationary HMW models, the HRMW is road-transportable — it can be towed to a site, connected to temporary power distribution, operated for a deployment period, and then recovered and redeployed. It uses the same MTU 16V2000 engine family as the HMW-1020 and HMW-1205 but is optimized for temporary deployment rather than permanent installation.

What is a typical rental deployment scenario for the HRMW-1150?

Common deployment scenarios: (1) data center commissioning — the HRMW-1150 provides bridge power while permanent generators are being installed or commissioned, typically 30-90 days; (2) disaster recovery — deployed to a utility substation or data center following equipment failure or extreme weather damage; (3) large outdoor event power for industrial sites; (4) construction temporary power for large projects requiring 1+ MW during build-out. The unit typically arrives on a flatbed or is towed directly to the pad.

Does the HRMW-1150 require an oversize load permit?

At 1,150 kW, the HRMW-1150 trailer is a large and heavy load. Whether an oversize load permit is required depends on the specific trailer configuration, route, and state regulations. For California, Texas, and most states, a unit at this size will typically require a transport permit and possible escort vehicle. Contact OnPoint or the transport provider at least 2 weeks before the planned delivery date to arrange permits.

Can the HRMW-1150 connect to a paralleling bus?

Yes. The HRMW-1150 supports isochronous load sharing and can be synchronized with other generators for parallel bus operation. This is particularly useful for data center commissioning scenarios where multiple HRMW units are deployed temporarily while the permanent generator plant is being commissioned. Confirm the paralleling interface with the site switchgear specification before delivery.

What fuel delivery is required for a 60-day HRMW-1150 deployment?

At approximately 75-95 gallons per hour at full standby load (confirm with Hipower datasheet), a 60-day deployment at moderate utilization (30% average load factor) requires approximately 97,000-122,000 gallons over the deployment period. Most rental deployments use scheduled bulk fuel delivery — confirm with your fuel supplier that delivery access at the site is adequate for a tanker truck.

Hipower Systems · HRMW Series (Mobile Diesel Large)

Hipower HRMW-1150

Name: Hipower HRMW-1150
Brand: Hipower Systems
Availability: PreOrder

1150 kW standby · Diesel · Liquid-cooled

1150 kW trailer-mounted MTU diesel generator. Rental-ready for data center commissioning and disaster recovery. Built in Olathe, Kansas.

Standby power: 1150 kW
Voltage options: 277/480V, 347/600V
Frequency / Phase: 60 Hz · 3-phase
Engine: MTU 16V2000
EPA / Emissions: Tier 4 Final
Alternator: Stamford HCI 634

rental-fleetData Centersemergency-temporarycritical-infrastructureCommercial

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.

Engineering specifications

Paralleling & telematics

Paralleling: Parallel-ready
Isochronous load share: Yes

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Estimate runtime for the Hipower HRMW-1150

Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.

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Generator size

Fuel

Fuel tank capacity

gal

Load

Override full-load GPH (optional)

GPH

Estimated runtime

3.2 hours(0.1 days)

Fuel consumption ≈ 62.10 GPH at 75% load. Estimate based on industry-typical 1800 RPM standby curves (≈0.07 GPH/kW at full load). Actual consumption varies by engine, ambient temperature, fuel quality, and tuning.

Service intervals

Manufacturer-recommended intervals for the Hipower HRMW-1150 under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.

Oil & filter: Every 500 hours or 12 months
Air filter: Every 1000 hours
Fuel filter: Every 500 hours
Major overhaul: ≈ 30,000 hours

Common failure modes

What we've seen fail on this platform. Use as a service-planning reference, not a diagnostic — actual failure modes depend heavily on duty cycle and maintenance history.

Component	Symptom	Typical hours	Severity
MTU high-pressure fuel filter	High-pressure common-rail system sensitive to contamination from temporary fuel supply connections — verify fuel quality at every deployment site	500+	moderate
DEF dosing injector	Clogging from crystallized urea — run DEF purge cycle at every shutdown, especially important on rental units that may sit between deployments	4,000+	moderate
Trailer road equipment	Wheel bearing and brake wear from frequent repositioning — inspect at every redeployment per DOT requirements	500+	moderate

Frequently Asked Questions

What makes the HRMW-1150 different from the stationary HMW-1020 or HMW-1205?: The HRMW-1150 is the trailer-mounted rental version of Hipower's approximately 1,150 kW MTU-powered generator. Unlike the stationary HMW models, the HRMW is road-transportable — it can be towed to a site, connected to temporary power distribution, operated for a deployment period, and then recovered and redeployed. It uses the same MTU 16V2000 engine family as the HMW-1020 and HMW-1205 but is optimized for temporary deployment rather than permanent installation.
What is a typical rental deployment scenario for the HRMW-1150?: Common deployment scenarios: (1) data center commissioning — the HRMW-1150 provides bridge power while permanent generators are being installed or commissioned, typically 30-90 days; (2) disaster recovery — deployed to a utility substation or data center following equipment failure or extreme weather damage; (3) large outdoor event power for industrial sites; (4) construction temporary power for large projects requiring 1+ MW during build-out. The unit typically arrives on a flatbed or is towed directly to the pad.
Does the HRMW-1150 require an oversize load permit?: At 1,150 kW, the HRMW-1150 trailer is a large and heavy load. Whether an oversize load permit is required depends on the specific trailer configuration, route, and state regulations. For California, Texas, and most states, a unit at this size will typically require a transport permit and possible escort vehicle. Contact OnPoint or the transport provider at least 2 weeks before the planned delivery date to arrange permits.
Can the HRMW-1150 connect to a paralleling bus?: Yes. The HRMW-1150 supports isochronous load sharing and can be synchronized with other generators for parallel bus operation. This is particularly useful for data center commissioning scenarios where multiple HRMW units are deployed temporarily while the permanent generator plant is being commissioned. Confirm the paralleling interface with the site switchgear specification before delivery.
What fuel delivery is required for a 60-day HRMW-1150 deployment?: At approximately 75-95 gallons per hour at full standby load (confirm with Hipower datasheet), a 60-day deployment at moderate utilization (30% average load factor) requires approximately 97,000-122,000 gallons over the deployment period. Most rental deployments use scheduled bulk fuel delivery — confirm with your fuel supplier that delivery access at the site is adequate for a tanker truck.

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