WE DELIVER ENERGY SYSTEMS

Our solutions are designed to make energy supply and energy management more efficient, secure, and effective – even under challenging conditions. Thus, we support the management of current threat situations and create real value both in active field operations and at the interface with civilian deployments, such as protecting critical infrastructure and in crisis response.

BATTERY TROLLEY SYSTEMS

EcoVolta – 2.3KW
POWERBANK
Universal, compact portable 230V solution for silent, emission-free energy on the go.

EcoVolta – 8.9KW
POWER TROLLEY
Mobile 400 Volt solution for professional applications with high power requirements.

EcoVolta – 15.0KW
POWERSTATION
Scalable professional power supply for high inrush currents and long runtimes or multiple devices.

EcoVolta – 15.0KW
EVOTRACTION
Powerful battery blocks or traction batteries for electric vehicles and machinery

BATTERY CASE SYSTEMS

FlexiBatt – 2.5KW
BATTERY-BLOCK
With 2.5 kWh and a lightweight, compact design, FlexiBatt provides energy for extended field operations.

FlexiBatt – 2.5KW
BATTERY CASE
A modular 48V and 2.5 kWh ruggedized battery system for professional, off-grid use independent of the power grid.

FlexiBatt – 50KW
BATTERY SYSTEM
A UPS and energy storage system with high capacity. The system combines 5 kWh modules. Scalable up to 50 kWh.

GENERATORS - FUEL CELL SYSTEMS

PowerUP
GENERATORS
Mobile hydrogen fuel cell generators for quiet, emission-free power in flexible applications.

PowerUP
POWER SUPPLIES
Integrable fuel cell power supplies for compact, modular hydrogen-based energy systems.

PowerUP
ELECTROLYZER
Decentralized hydrogen production for resilient, independent energy supply on site.

PowerUP
USV SYSTEME
Hydrogen-based UPS power systems for reliable backup power in critical applications.

PowerUP
CONTAINER SYSTEME
Containerized hydrogen power systems, solutions for scalable, resilient energy supply on site.

LET'S TALK AND STAY IN TOUCH

YOUR CONTACT PERSONS

OUR BUSINESS AREAS

Vogt-CTE
Rescue
Business field for products related to rescue and operations

Vogt-CTE
Defense
Business field for products related to defense and security markets

Vogt-CTE
Energy
Business sector for products related to mobile energy supply markets

Vogt-CTE Fire Retardants
Business field for products related to fire protection and firefighting

LANGUAGE SETTINGS

HOW HYDROGEN FUEL CELLS WORK | PEM FUEL CELL EXPLAINED

When it comes to climate-friendly energy, we often face the same problem: many clean energy sources like sun and wind do not always provide power when we need it. Therefore, we need good ways to store, transport, and flexibly supply energy. This is where fuel cells become interesting: they can directly convert chemically stored energy (for example, in the form of hydrogen) into electricity – efficiently, quietly, and without traditional combustion.

The crucial point for the environmental balance is: a fuel cell is not a “magic device” that is automatically greener. How sustainable it really is greatly depends on where the fuel comes from. In the cell itself, using hydrogen as fuel, almost only water and heat are produced locally. This means: No nitrogen oxides, no particulate matter from exhaust gases, and no CO2 at the tailpipe (if it’s a vehicle). Especially in cities, this can improve air quality and reduce noise.

HOW FUEL CELLS WORK

At PowerUP (PowerUP Energy Technologies / PowerUp Fuel Cells OÜ, the mobile generators like UP400/UP1K/UP3K/UP6K) there are PEM fuel cells (Proton Exchange Membrane, eng. PEMFC), powered by hydrogen and oxygen from the ambient air.

Anode (Hydrogen Side):

The catalyst splits hydrogen into protons and electrons.
Protons pass through the membrane, electrons flow over the external circuit (this is the usable electricity).

Cathode (Air Side):

Oxygen reacts with protons and electrons to produce water.

Overall reaction: Byproducts: electric energy + heat and a small amount of water.

However, hydrogen is an energy carrier, not an energy source. Its production can vary significantly:

Green hydrogen (electrolysis with renewable energy) can be very climate-friendly.
Gray hydrogen (from natural gas without CO2 capture) causes significant CO2 emissions.
Blue hydrogen (natural gas + CO2 capture) can reduce emissions but relies on how effectively the CO2 is stored and how high the methane leakages are.

From a sustainability perspective, fuel cells are particularly interesting when used in places where batteries face limitations or where waste heat can be utilized efficiently. Examples include:

Heavy-duty transport, buses, trains on non-electrified lines: Long ranges and short refueling times can offer advantages.
Stationary energy supply: In buildings or industry, electricity can be generated, and the resulting heat can be directly utilized (combined heat and power) – it saves energy.
Seasonal storage: Excess wind or solar power can be converted into hydrogen and later used when less electricity is produced.

Fuel cells can be seen as a component of a more environmentally friendly energy future: They connect renewable energy with sectors that are difficult to electrify. At the same time, it is essential that for this to be genuinely sustainable, it requires renewable generation, a clean hydrogen production, and a good infrastructure that minimizes losses and emissions.

If you like, I can focus this introduction more in a specific direction:

more school/report (simple, illustrative),
more technical (efficiencies, chain electricity → H2 → electricity),
or more political/social (role in the energy system, opportunities and limits).

WHAT TYPES OF FUEL CELL STACKS ARE THERE?

PEMFC (PEM, Low-Temperature): currently the most common in the automotive sector and also in small stationary systems.
HT-PEM (High-Temperature PEM): similar basic principle to PEM, but with different membrane chemistry and usually better tolerance to certain impurities (but different aging issues).
AFC / AEMFC (Alkaline / Anion Exchange Membrane): often cheaper catalysts are possible, but sensitive to CO2 (classic AFC) and membrane stability is a core issue (AEMFC).
PAFC (Phosphoric Acid): proven for stationary use, robust, but heavier/more expensive; uses acidic electrolytes and typically graphite plates.
MCFC (Molten Carbonate): high temperature, good for larger stationary power and fuel flexibility; material degradation is central.
SOFC (Solid Oxide): very high/high temperature, often planar or tubular stacks; very high requirements for materials, seals, and thermal cycles.
Reversible Stacks (rSOC / Reversible Fuel Cell): can operate as an electrolyzer and fuel cell (Power-to-Gas-to-Power), but the load change/cycle durability is particularly demanding.

By Peripheral in Stack Design

Air-Cooled vs. Liquid-Cooled (typically important for PEM): Air cooling is simpler but limits power/temperature range; liquid cooling is more complex but can handle higher loads.
Internal vs. External Manifolds (Gas Distribution Channels): affects sealing concept, leakage risk, and uniform gas distribution.

HOW DO METHANOL FUEL CELLS STAND OUT?

Fuel: They use liquid methanol instead of gaseous hydrogen. This often makes storage and transport easier.
Principle: DMFC (Direct): Methanol reacts directly in the cell.
Principle: Reformers + PEM: Methanol is first converted to hydrogen, then a standard PEM fuel cell operates.
Emissions: Methanol always generates CO2 (either in the cell or in the reformer). With hydrogen PEM, it usually results in only water locally.
Performance/Efficiency: DMFC often has lower performance and efficiency (among other reasons, due to methanol permeation through the membrane). Reformer+PEM is typically stronger but more complex.
Practice: Methanol is toxic and flammable (different risk profile than hydrogen). However, “refueling” is often logistically simpler.

Mnemonic: Methanol is logistically convenient, but generates CO2 and is often less powerful as a DMFC; hydrogen is cleaner locally, but harder to store/distribute.

WE DELIVER INNOVATIVE ENERGY SYSTEMS
At Vogt-CTE, we provide our European trading partners access to unique innovations in the field of energy systems. Our solutions make energy supply and energy management easier, faster, safer, and more energy-efficient – all while consuming fewer resources. The products we represent are highly specialized, field-tested, and create real value: they strengthen resilient, decentralized structures and ensure operation even under demanding conditions. We do not just bring products to market; we deliver progress. Together with our partners, we ensure that these innovations reach where they are needed most: at operators of critical infrastructure, response organizations, and field users.