The mobile water giant

In response to the growing demand for new ways to generate drinking water and based on the latest scientific findings, the team around Walter Kreisel developed an atmospheric water generator.

It all started with a simple thought

When Walter Kreisel drank out of a glass with cold water during his annual visit to an African orphanage, he noticed the many drops of water forming on the surface. That would be nothing special but at this moment the innovative entrepreneur is only thinking of the global benefits of this simple principle. The energy transition or the conversion to renewable energies is going too slow for Walter Kreisel and the exploitation of human and earthly resources must be reduced.

Especially in African developing countries or in India drinking water is tediously dragged along a long distance and many wells are contaminated and there on this glass in his hand water is simply extracted from air. The process is simply explained: If warm air, which stores more water than cold air, is cooled, the steam condenses and settles on the glass as a drop of water. In other words, water is extracted from the air. Exactly this principle is used by atmospheric water generators, short AWG.

Elephants can smell water over several kilometers and even dig for it in the ground.

Photo: Damian Patkowski

0 Liters
Drinking water extracts PHANTOR from the air every day

The Mobile Water Giant PHANTOR, named after the elephant, who can smell water for several kilometers and even drill it afterwards, marks a new category in the field of atmospheric water generators. PHANTOR, as a high-performance mobile AWG, is designed for both stationary and semi-stationary use, unlike most conventional atmospheric water generators.

PHANTOR can extract up to 10,000 liters of drinking water from the air daily and thus belongs to the biggest AWGs. The innovative design of the system and the integrated self-optimizing software set new standards in the field of energy efficiency of atmospheric water generators. This shows the years of experience in the field of energy systems and renewable energies of neoom group gmbh, the company behind the project. With PHANTOR, the concentrated know-how of the neoom hardware and NTUITY software team is driven to perfection.

As a mobile high-performance AWG, PHANTOR is designed for both stationary and semi-stationary use.

As the world population continues to increase massively and water consumption increases even faster, the demand for mobile water generators is growing. For years the World Economic Forum’s Global Risks Report is reporting that the global water crisis is one of the greatest threats humanity will face over the next few decades. Global warming is changing freshwater lakes, rivers and streams. Groundwater is under threat from fracking, oil fields and oil transport, reports Greenpeace. According to a report by Science of the Total Environment desalination leaves potentially toxic brine, is extremely energy-intensive and is only possible locally near the coast. This means that humanity needs “new water”, e.g. through atmospheric water generators. PHANTOR, the mobile water giant, provides millions of people access to safe drinking water through state-of-the-art technologies and renewable energy.

Who needs a mobile water generator?

AWGs are used where water scarcity is a daily challenge: in remote locations, in dry regions or agricultural areas, during peacekeeping operations and catastrophes, but also for urban development.

In large Green Housing plants, drying equipment is used to keep the humidity in the greenhouse in the optimum range. At the same time, water is used for irrigation. These two activities can be perfectly combined with an atmospheric water generator: The processed water from the air is added back to the roots of the plants.

During peacekeeping missions or disaster operations, a self-sufficient water supply system must be set up temporarily. PHANTOR can be delivered immediately by container and produce drinking water on site.

The PHANTOR atmospheric water generator can supply a complete residential building, hotel or hospital with fresh water. In many areas this is more economical than a water pipe.

PHANTOR, the Mobile Water Giant, aims to provide millions of people access to safe drinking water through state-of-the-art technologies and renewable energy.

PHANTOR sets new standards in the field of atmospheric water generators as a mobile high-performance AWG. Self-optimizing software maximizes energy efficiency. Fail-safe operation is guaranteed by renewable energy sources.

PHANTOR, the mobile high-performance AWG

Current AWG on the market are often too small to produce sufficient water or too complex and only intended for stationary use. The mobile water giant PHANTOR represents the missing link in the field of atmospheric water generators and sets several new standards in mobile water extraction and water treatment. PHANTOR is designed as a mobile high-performance AWG for both stationary and semi-stationary use. In order to increase energy efficiency, the dehumidified and cool air is not simply blown out in the circuit, but fed directly inside the housing to the recooler for cooling the system. In addition, PHANTOR can generate energy for the basic supply from renewable sources through a photovoltaic system on the roof. In combination with a power storage unit, power outages are no longer a problem. Depending on the application, a suitable operation strategy of the high-performance AWG can be individually selected.

Walter Kreisel and Manfred Ledermüller nearing completion of the first PHANTOR.

Photo: Mario Riener

Hardware and software in perfect symbiosis

With a volume of 10,000 litres of drinking water per day, PHANTOR belongs to the top league of AWGs and at the same time provides innovative functions that open up completely new possibilities for added value for the operator. The system is equipped with a self-optimizing control system and secure remote access via the Internet is possible at any time and worldwide. Current weather data is continuously included in the calculation in real time, resulting in significant energy savings.

This shows the many years of experience in the field of energy systems and renewable energies of neoom group gmbh, the company behind the project. With an uncompromising portfolio of energy storage and charging products under the neoom brand in combination with an intuitive energy management software called NTUITY, the neoom group is already showing today what the energy systems of the future must look like. With PHANTOR, the concentrated know-how of the neoom hardware and NTUITY software team of the neoom group is driven to perfection.

With dimensions of 12.0 x 2.28 x 2.65 metres (length x width x height) and a weight of around 14.3 t, PHANTOR is robustly built and corresponds exactly to the container size of 40 Foot Standard High Cube. This makes it relatively easy to transport the mobile high-performance AWG worldwide by train with reduced emissions. The installed devices and materials are designed for minimum maintenance and maximum service life, in order to achieve an above-average reliability of PHANTOR.

Technical data
Length12 m
Width2.28 m
Height2.65 m
Weight14,300 kg
Power supplymax 120 kW (400V, 50Hz)
4.8 kWh neoom® Li-ion off grid battery system for autonomous emergency power supply
 Oil free chiller system, contact free magnetic bearings for highest efficiency and low maintenance
Water treatmentCombi filter, UV-disinfection, mineralization, bacterial filter. Verified drinking water (above WHO standards)
Integrated water tank1000 liters
Integrated photovoltaics1.5 kW power
HousingSuitable for installation near the cost. Housing and steel structure in C5 coating
Measuring control technologyState of the art PLC with NTUITY® Link On Board (including visualization and remote control)

The thermodynamic simulation model of PHANTOR was developed in cooperation with the University of Applied Sciences Upper Austria. Tests in the climatic chamber of the accredited test center Rail Tec Arsenal confirm the outstanding function of PHANTOR and show that the real results are in agreement with the simulation model.

Austrian drinking water quality

The drinking water produced by PHANTOR does not only comply with the worldwide WHO guidelines but also with the even higher Austrian standards. The harvested water must pass through a number of filters, including activated carbon filters, UV disinfection, mineralisation and bacterial filters.

PHANTOR on its way to the test station.

In November/December 2019, tests were carried out at an accredited testing laboratory to provide practical proof of the mathematical theoretical model. It was confirmed that PHANTOR works exactly as calculated and that 10,000 litres of drinking water can be harvested per day.

On 25.11.2019 PHANTOR left the production halls for the first time and was transported by truck to the accredited test centre according to EN ISO/IEC 17025 near Vienna. Various values for air humidity and ambient temperature were simulated in the climatic wind tunnel on the basis of several test runs. Thus the mathematical model based on the PHANTOR could be verified. The test results confirmed the functionality, performance and efficiency of PHANTOR.

Walter Kreisel

CEO & Founder

Manfred Ledermüller

CTO & Co-Founder


Imhotep.Industries GmbH

Industriestraße 6, 4240 Freistadt, AUSTRIA

VAT: ATU75875457
Founder and Managing Director: Walter Kreisel

Co- Founder, Partner and Director as well as Developer of PHANTOR: Manfred Ledermüller

neoom group

The neoom group has recognized the megatrends of decarbonisation, digitization, decentralization and e-mobility at all levels, thus taking the necessary energy transition to a new level. From renewable energy sources to efficient storage technologies and charging infrastructure with the neoom® brand ( to the intelligent NTUITY® energy management software platform (, the neoom group offers comprehensive concepts and products that are tailored to the needs of the customer.

For about a decade 40-year-old Walter Kreisel has been working intensively on energy efficiency, i.e. the generation, storage and conversion of energy. As the managing director of the neoom group gmbh he firmly believes that the energy transition can solve problems such as global warming and water shortage. For example he develops perfectly matched power storage and charging products with his team under the neoom brand. With NTUITY he provides software that represents a whole new generation of intelligent energy management. His wife is deeply involved with the Karibu World association, which supports children in Africa and India. That is why he travels to Kenya every year to help out locally and to see the world through different eyes. That’s where the idea for PHANTOR originated.

Walter Kreisel