Designs and manufactures hydrogen fuel cell generators for defence, telecommunications and critical infrastructure, with products battle-tested in active conflict zones and NATO exercises.
Founded 2016|11-50 employees|Tallinn, Estonia|6 open positions|Website|LinkedIn
Advanced Materials
Products & Solutions
UP400
UP400
A 400 W portable hydrogen fuel cell generator weighing 21 kg, designed for field personnel needing to power laptops, radios, GPS units and other personal equipment. With a noise level of 45 dB and zero emissions, it suits both off-grid civilian use and military forward positions. It can be combined with batteries, solar panels or wind turbines to form a micro-grid.
UP1K
UP1K
A 1 kW portable generator delivering 1000 W at 24 V, weighing 27 kg. Designed for disaster relief operations, 5G telecoms tower backup and defence field use, it shares the same near-silent and zero-emission profile as the UP400 while providing enough power for larger communication and sensing equipment.
UP3K
UP3K
A 3 kW generator, scalable to 6 kW with two cells, built for defence and security field operations. It supports remote monitoring and control via IoT, multiple battery options and grid-drop detection for automatic alarm starts. A 19-inch rack integration kit is available for indoor and outdoor installations, and the UP3K is rated for 10,000 operating hours.
UPMobile
UPMobile
A 10 kW trailer-mounted hydrogen fuel cell generator designed for tactical operations centres and mobile military deployments. It delivers up to 15 kW rated output, supports DC and single- or three-phase AC power, includes an integrated 6.8 kWh battery extender for instant start capability, and is rated IP54 for outdoor use. Operating life is rated at 20,000 hours.
PowerUP Energy Technologies, founded in 2016 by Ivar Kruusenberg, develops and manufactures hydrogen fuel cell generators for defence, telecommunications, disaster relief and off-grid industrial use. The company is headquartered in Tallinn, Estonia, with an additional office in Tokyo, Japan, and draws on 20 years of cumulative research in fuel cell technology, including early work on systems engineered for European Space Agency missions.
The core of PowerUP's product range is its UP series of portable generators, which run on compressed hydrogen and produce zero emissions, minimal noise and almost no heat signature, properties that make them particularly suited to military forward-operating units where conventional diesel generators create acoustic and thermal exposure. Products span from the 400 W UP400 designed for personal field equipment charging up to the 10 kW UPMobile trailer-mounted unit for tactical operations centres.
PowerUP's generators have been tested by NATO's Energy Security Centre of Excellence, receiving a highly recommended evaluation, and were deployed during NATO's Steadfast Defender 2024 exercise involving 90,000+ troops from all 32 allies. The company has also validated its systems in active deployment in Ukraine. Customers include telecom operators Tele2 and Telia, as well as industrial and commercial clients across Europe and beyond.
In November 2025, PowerUP closed a €10 million Series A round co-led by dual-use venture firms Mercaton and ScaleWolf, with Estonia's SmartCap Green Fund also participating. The funding is directed at expanding sales teams, establishing hubs in Central Europe and North America, and developing higher-density fuel cell models.
Offices
Tallinn, EstoniaTokyo, Japan
Backed by
MercatonScaleWolfSmartCap Green Fund
Customers & Partners
Tele2Telia
Timeline
2025-11
Closed a €10 million Series A round co-led by Mercaton and ScaleWolf, with SmartCap Green Fund participating, to scale manufacturing and expand into Central Europe and North America.
2024
Generators deployed and tested during NATO Steadfast Defender 2024, the alliance's largest exercise, receiving a highly recommended evaluation from NATO's Energy Security Centre of Excellence.
2023
Initiated a €7 million funding round to accelerate commercialisation of its hydrogen generator range.
2016
Founded in Tallinn, Estonia by Ivar Kruusenberg, building on fuel cell research originally developed for European Space Agency applications.