IN THE AIR
Fly Lighter. Fly Longer.
THE LIGHTEST
LONG ENDURANCE SYSTEMS
FOR ELECTRIC FLIGHT
We have been developing and integrating high performance and ultralight electric power systems for UAVs and drones worldwide. With our unique and advanced expertise in R&D for the Defense industry, we are now deploying our technology for commercial applications. We offer a wide range of products and configurations, giving various possibilities for UAV and drone manufacturers to opt for the most suitable and best-in-class power systems based on field operations constraints and requirements.
AEROPAK SERIES
HYBRID FUEL-CELL INTEGRATED SYSTEMS
SUITABLE FOR 5kg - 50kg FIXED-WING UAVS
AEROPAK-G
COMPRESSED HYDROGEN GAS
The AEROPAK-G system integrates high pressure compressed hydrogen gas bottles using our specially developed connectors.

AEROPAK-L is an energy dense power supply solution enabled by compact, ultra-light fuel cells, which uses a hydrogen-rich liquid chemical fuel as feedstock.
AEROPAK-L
LIQUID CHEMICAL HYDRIDE

AEROPAK-S
SOLID CHEMICAL HYDRIDE
AEROPAK-S is a high performance solid hydrogen on-demand cartridge system that offers a theoretical 14% hydrogen storage weight content, and yields a practical 7%.

A 250

A 500

A 1000

AEROSTAK
WORLD'S SMALLEST & LIGHTEST FUEL CELL STACK
STANDARD SIZES AND POWER CONFIGURATIONS
HES Energy Systems has the capability to design and integrate ultralight fuel cell stacks in the range of 10W to 2kW. These stacks have been tested in labs and in the field for hundreds of hours worldwide in the last 10 years. AEROSTAK is a complete power device that includes a PEM Fuel Cell stack, aerospace-grade control electronics, resistant-to-shocks casings with integrated air cooling fans and LiPo-compatible hybrid electronic cards.
A 250

A 500

A 1000

Do you want to know more about our AEROSTAK Series?
Download the brochure with all the specifications.
ACCESSORIES
ADD EFFICIENCY TO YOUR SYSTEM
WITH OUR CYLINDERS AND PRESSURE REGULATORS
PRESSURIZED CYLINDERS
HIGH ENERGY DENSITY OUTCOME
2 TO 20 LITERS H2 GAS STORAGE
For our standard cylinders up to 350 bar:
For our 300 bar cylinders, with special EN12245 certification:


PRESSURE REDUCERS
300 BAR TO 0.55 BAR
IN 250 GRAMS ONLY
ALL INCLUSIVE STARTER KIT
FOR DRONE AND ROBOT INTEGRATION

Pressure Reducer

Fuel Cell Stack

Cylinder

Optional Booster Pump