A hydrogen fuel-cell power plant on a trailer. Tow it in with a pickup, connect your loads, and run up to 180 kW of near-silent power with no grid, no diesel and nothing out the exhaust but pure water.
Deployed the same day. Silent by the next morning's meeting.
The MPG pairs a GM HYDROTEC fuel cell with a 180 kWh battery buffer, so it holds steady output through load swings that stall conventional generators.
It runs beside a film set, a hospital or a sleeping neighborhood, because the loudest thing on it is the cooling fans and the only exhaust is water.
Select a system
What's inside
Six subsystems, one trailer. Pick one to see what it does and the figures behind it.
Schematic, not to scale
The energy math
One fill, in numbers you can plan around.
Every kilogram of hydrogen delivers 12–20 kWh depending on load profile. We size the unit, and the refill schedule, to your actual demand, not a brochure figure.
40 kgHydrogen per fill
×
12–20kWh delivered per kg
=
480–800 kWhPer 30-minute refuel
One trailer, two jobs
Site power by day. Fast charging on demand.
Prime and backup site power
Job sites, events, disaster response, and facilities waiting on a utility interconnect. Three-phase AC at 120/208, 480 or 400–415 Delta, held steady by the battery buffer, and quiet enough for overnight urban operation.
Grid-free rapid EV charging
Optional twin 180 kW DC fast chargers with CCS, CHAdeMO and Tesla connectors charge a vehicle in under 20 minutes, with built-in metering and payment, so a fleet yard or school district can charge where the buses park, not where the grid allows.
Side by side
What changes when the diesel leaves.
EmPower MPG compared with a diesel generator
Topic
EmPower MPG
Diesel generator
Emissions
Pure water. No CO₂ emissions permits required
CO₂, NOx and particulates; permitted and increasingly restricted
Noise
Near-silent, low heat signature; runs beside offices, sets and neighborhoods
Engine noise constrains siting and overnight operation
Efficiency
Over 50% more efficient as primary or backup power
Baseline; efficiency falls further at partial load
Fuel logistics
Hydrogen stores indefinitely without degrading; ~30-minute refills
Diesel degrades in storage and needs polishing, treatment and rotation
Load response
180 kWh battery buffer absorbs surges instantly
Governor lag on step loads; oversizing is the common workaround
80 kW GM HYDROTEC power cube; optional second cell
Total power output
Up to 180 kW
Inverter rating
200 kW
Battery
180 kWh lithium-ion
Fuel
Onboard hydrogen
40+ kg at 700 bar
Hydrogen quality
99.999% purity
Delivered energy
12–20 kWh per kg
Refuel time
~30 minutes at a vehicle H₂ station
Exhaust
Pure water
Electrical
AC output
120/208, 480 Delta, 400–415 Delta
EV charging (optional)
Rapid DC chargers
2 × 180 kW, single or double outlet
Connectors
CCS, CHAdeMO, Tesla
Typical charge
Under 20 minutes
Physical and operations
Dimensions
26′3″ × 8′6″ × 9′6″ (8.0 × 2.6 × 2.9 m)
Weight
~13,600 lbs (6,000 kg); tows with a standard pickup
Scaling
Multiple units join; family spans 60–600 kW
Monitoring
24/7 remote monitoring from the RI Network Operations Center
Metering
Built-in time-logging and payment system
Where it works.
Job sites
Film sets
Disaster response
Events
Facilities waiting on a utility interconnect
Hospitals and neighborhoods, overnight
Fleet yards and school districts
The field record
Proven where there is no backup plan.
2021
Named official power partner of the Rebelle Rally: grid-free power and EV charging across 2,500 km of Nevada and California desert. The first of five consecutive years.
2022
GM announces the HYDROTEC partnership: RI power integration around GM fuel cells, with the MPG family spanning 60–600 kW. The U.S. Army's DEVCOM evaluates a palletized variant, and purchase orders arrive from Fortune 50 companies.
2023
An MPG is delivered to the U.S. military. EPRI and the California Energy Commission select RI hydrogen trailer hardware for the Oakmont Village community microgrid pilot. At that year's rally, RI systems charge the first EV ever to win it.
2024–25
RI's mobile fleet runs fourteen chargers on hydrogen and solar at King of the Hammers, demonstrates to law enforcement at the Police Security Expo, and delivers a near-1 MW desert microgrid at the 2025 rally.
“GM will combine its fuel cell hardware and software with Renewable Innovations' power integration and management systems to create a generator that can provide fast-charging capability for EVs.”
Charlie FreeseExecutive Director, Global HYDROTEC, General Motors
After delivery
Watched from Utah, wherever it works.
Every MPG reports to our Network Operations Center around the clock: output, hydrogen level, battery state and charge sessions. We see a fault before your crew does, and dispatch refuels before the tank runs low.
