About Nexgen Cryo
Engineered for the post-diesel era
NexGen Power Systems designs and builds containerized LNG-to-power generation platforms that achieve combined-cycle efficiency in a footprint that fits on two flatbed trailers. Our patented CryoDrive architecture recovers the cold energy that conventional LNG systems waste during vaporization — turning a thermodynamic liability into roughly 3 MW of additional output per fuel stream.
We operate as an engineering, integration, and intellectual property company. Core components are sourced from strategic partners — Honeywell aero-derivative gas turbines via Signal Power Group, custom permanent-magnet generators via Hitachi Industrial Products, cryogenic heat exchangers via Chart Industries — and integrated at our Center for Cryogenics Applications Research in Kingman, Arizona.
Combined cycle efficiency
Pumps deployed by team
Countries served
Patent applications filed plus founder heritage since 2004)
Quick Facts
“Cool quote from Dennis Here.”
Dennis Chalmers - CEO & Co-Founder
Our Mission
Deliver the world’s most efficient portable power by recovering the cold energy that LNG wastes when it vaporizes — turning a thermodynamic liability into a competitive moat.
Every LNG regasification terminal, wellhead generator set, and LNG-fueled facility throws away the cold energy stored in liquefied natural gas at −162°C. That cold is free exergy. Routed to an Organic Rankine Cycle condenser, it enables condensing temperatures no ambient-cooled system can reach — nearly doubling waste-heat recovery output and pushing combined-cycle efficiency past 58%. No one else has commercialized this in a portable, containerized format for the off-grid market.
NexGen will be the standard for high-efficiency portable LNG power — delivering 6+ MW from a single gas turbine fuel stream at efficiencies that match utility-scale combined-cycle plants, in a package small enough to ship anywhere.
- Efficiency is the fastest path to decarbonization. Achieving 58% versus 30% from the same fuel halves emissions per kWh before any carbon capture.
- Portability unlocks markets. Fixed combined-cycle plants cannot serve oilfields, disaster zones, remote mines, or railroad corridors.
- LNG cold energy is the most under-exploited energy source in the natural gas value chain.
- Domain expertise compounds. The team that built 450+ cryogenic pumps across 60 countries is uniquely qualified to build this.
Leadership
Dennis W. Chalmers
BSME, PE (ret.) — CEO & Co-Founder
Dennis has spent his career at the intersection of cryogenic engineering and LNG infrastructure. As VP of Engineering at JC Carter Pumps from 2002 through 2012, he invented and brought to market the third generation of LNG submerged motor pumps that became industry standards. He continued the work as New Product Director at ACD Pumps (Nikkiso ACD) and holds two World Patents covering TC 34.2 LNG cryopumps and electric feed-throughs.
Dennis is named as lead inventor on every USPTO LNG cryogenic submerged motor pump and turbo-generator patent applied for or granted since 2004. He co-founded the original NexGen Cryogenic Solutions, which developed the CryoDrive Gen 4 LNG submerged motor pump in association with Flowserve Corporation and was acquired by Flowserve in July 2024.
Rahul Joshi
Managing Partner
RC brings approximately 18 years of cryogenic systems experience across Atlas Copco, Ebara Elliott Energy, Nikkiso, and Flowserve. As CTO he leads the thermodynamic design and optimization of the GT plus Cryo-ORC system — including working fluid selection across a six-configuration evaluation matrix, recuperator optimization that delivered a 55% LNG cold reduction with a 16% power increase, and full state-point engineering of the 3.3 MW reference system.
History
SOLD
NexGen Cryogenic Solutions sells CryoDrive Gen 4 LNG pump line to Flowserve
FOUNDED
NexGen Power Systems founded; pivot to portable LNG-to-power
LAND PURCHASED
20-acre Kingman, AZ research site acquired
PATENTS FILED
Five US provisional patents filed
NDA
Hitachi NDA executed
MOU
Hitachi Industrial Products MOU signed
DESIGN COMPLETED
Full thermodynamic design completed; 16+ state points verified
The team’s heritage in LNG cryogenics traces back more than two decades, with deep operational and patent history in submerged motor pumps and turbo-expanders. The transition to power generation is a natural application of that expertise — the cold-energy recovery problem has been visible to specialists for years, but only the team that already understands cryogenic equipment design at depth could commercialize it.
Strategic Partners
Center for Cryogenics Applications Research
Campus
Our 20-acre campus south of Kingman, Arizona houses the integration, test, and validation infrastructure for the entire CryoDrive product family. The site is adjacent to the Flowserve DW Chalmers Center for Cryogenics Engineering Excellence, sits on industrial-zoned land with no residential buffer, and is accessible via I-40 and US-93 — two hours from Las Vegas by road.
Phase 1 — Power Generation Lab
- •~10,000 sq ft enclosed high-bay for container-sized assemblies
- •Reinforced outdoor concrete pad for GT plus ORC system operation
- •16,000-gallon vacuum-insulated LNG storage
- •4.16 kV switchgear; 6+ MW load bank; grid interconnection
- •ATEX-rated ventilation; ethylene and methane gas detection grid
Phase 2 — Transportation Lab
1/8-scale railroad test track for CryoDrive 5 dynamic model testing, scaled power distribution rig, and a motor/generator test bench for permanent-magnet traction motor prototypes.
Phase 3 — Modular LNG Fuelling Depot
LNG receiving, storage, and dispensing infrastructure for facility operation and customer demonstration.
Phase 4 — Oxy-Fuel Brayton Cycle Lab
Concurrent carbon-capture combustion testing and CO₂ sequestration pathways evaluation.