As energy costs rise and water shortages continue to threaten communities, industries, and agriculture, the world is searching for solutions that can do more than simply generate electricity. Traditional systems often struggle with noise, low efficiency in weak wind conditions, and limited long-term sustainability. But what if one technology could address both clean energy and water recovery at the same time?
This vision is exactly what Gerhard Wieser, CEO of WG Kraftwerke GmbH and Windgiant Energy GmbH, has been working toward for years. Combining his deep roots in agriculture with hands-on experience in hydropower, engineering, and renewable technologies, Wieser has led the development of patented dual-turbine wind energy tower systems designed to generate clean electricity and to recover water directly from the atmosphere.
Under his leadership, the companies are pushing the boundaries of climate-resilient infrastructure through low-noise, low-wind-speed energy solutions built for communities, industries, and future energy networks. From advanced CFD-tested turbine systems to international patents and participation in major German research initiatives for large-scale renewable manufacturing, the companies are steadily transforming an ambitious concept into a practical solution with global potential.
This growing impact earned Windgiant Energy GmbH the No. 1 ranking among the “Top 10 Wind Energy Solutions Providers in Europe 2022,” highlighting the industry’s recognition of the company’s innovative approach to renewable energy.
Key highlights of the company’s progress include:
- Advanced CFD-tested dual turbine systems
- International patents in renewable energy technology
- Participation in German renewable manufacturing research initiatives
- Development of integrated wind energy and water recovery systems
- Focus on low-noise and low-wind-speed performance
With the first operational installations moving closer to reality, Gerhard Wieser’s work is drawing attention to a future where renewable energy and water security could exist within one integrated system.
From family farms to dual turbines
The foundation of WG Kraftwerke GmbH and Windgiant Energy GmbH was built through Gerhard Wieser’s lifelong connection to agriculture, engineering, and renewable energy. Raised on his family’s agricultural farm, he developed a deep understanding of hard work, responsibility, and the growing importance of sustainable resources from an early age. Over the years, his professional journey expanded across insurance, risk management, hydropower, real estate, and engineering, giving him practical experience in long-term planning, operational efficiency, and infrastructure development.
A major turning point came after German reunification, when Gerhard Wieser became involved in the modernization of hydroelectric power plants in Saxony. Working alongside engineering and construction experts, he helped develop hydropower facilities that combined advanced turbine systems with practical energy solutions.
As the sole managing partner, Gerhard Wieser held a 50% ownership stake in the hydroelectric power plants as a co-owner, assuming full financial risk and responsibility for his share of the business. This experience strengthened his interest in renewable energy and showed him how innovative engineering could solve real-world challenges.
After returning to Austria, Gerhard Wieser continued working in renewable energy development through Windgiant Energy GmbH. During this period, he recognized several limitations within conventional wind energy systems, particularly high noise levels, weak performance at low wind speeds, and the lack of efficient solutions for smaller communities and industries seeking energy independence. He saw a major opportunity to create a more practical and climate-resilient technology that could operate efficiently while addressing future energy and water challenges at the same time.
This vision led to the development of the patented Windgigant dual turbine technology. Designed to combine renewable energy generation with atmospheric water recovery, the system focuses on low-noise operation, airflow acceleration, and improved efficiency even in weaker wind conditions. Gerhard Wieser pursued the project independently and at his own financial risk, working closely with engineering, design, and supply partners to turn the concept into reality.
The challenge of total integration
One of the biggest challenges in the early stages was bringing together all structural, airflow, and drive system components into one fully integrated and practical solution. Gerhard Wieser wanted to develop a wind energy system that could operate efficiently even at low wind speeds while also maintaining low noise levels and supporting atmospheric water recovery. Achieving all of these goals within a single system required years of technical planning, testing, and continuous refinement. To strengthen the development process further, he also completed specialized training in 2D and 3D design in Austria, which helped improve the technical design and engineering side of the project.
The development of the proprietary dual turbine technology went through multiple prototype stages and extensive CFD testing by an independent German engineering firm. The goal was not only to improve airflow acceleration and energy generation at lower wind speeds but also to create a quieter and more community-friendly renewable energy solution. Drawing from his experience in hydroelectric engineering, Wieser integrated advanced airflow regulation systems and scalable turbine configurations into the technology. One of the most important milestones was securing regulatory approval for the first 30 kW reference installation in Austria, which combines renewable energy generation with integrated water extraction technology.
According to Gerhard Wieser, one of the biggest lessons from this journey has been that meaningful innovation takes patience, discipline, and consistent execution. He believes that solving real-world problems requires practical engineering, long-term thinking, and the willingness to keep improving a concept until it becomes a reliable and scalable solution.
Two solutions, one system
WG Kraftwerke GmbH and Windgiant Energy GmbH are developing advanced dual-turbine wind energy systems designed to address two growing global challenges simultaneously: clean energy generation and sustainable water recovery. Unlike traditional wind turbines that mainly focus only on electricity production, the company’s technology is built to generate renewable power while also extracting usable water directly from the atmosphere. This creates a more practical and climate-resilient solution for communities, industries, and agriculture.
The system is designed to:
- Generate renewable electricity
- Recover usable water from the atmosphere
- Operate efficiently in low wind conditions
- Reduce operational noise
- Support both small communities and industrial applications
What sets the technology apart is its ability to operate efficiently even at low wind speeds, where many conventional three-bladed turbines struggle. The system uses specially designed dual turbines that accelerate airflow, improve energy output, and reduce operational noise for smoother and quieter performance.
The wind energy towers also use advanced airflow engineering principles to guide wind from all directions into the turbine system, increasing efficiency and allowing flexible configurations ranging from smaller community setups to larger industrial applications.
Consequently, these wind energy towers featuring dual-turbine technology were also submitted for registration in Europe via industrial designs, as well as, in some cases, through national design patents at the respective national registration offices.
Another major advantage is the integration of intelligent wind control and atmospheric water recovery technology within the same structure. The system can automatically – using wind gates, a technology well known from hydroelectric power plants – regulate airflow during changing weather conditions, helping protect the turbines while maintaining stable performance.
With this wind sluice gate technology, in the more powerful wind energy towers with 2 to 8 double turbines, the individual double turbines regulate the airflow between them depending on wind strength by opening or closing these wind sluice gates.
At the same time, moisture from the air from +10 degrees to +50 degrees by cooling the airflow below the dew point, depending on the temperature and the accompanying humidity levels of an average of 2 g per m³ of airflow is condensed into usable water that can support irrigation, agriculture, and other technical needs.
Even during absolute wind calmness and/or low wind conditions, the turbines can continue operating in motorized fan mode to support water extraction. By combining renewable energy, airflow optimization, and water harvesting into one integrated solution, the companies are working toward a future focused on cleaner energy, stronger water security, and long-term sustainability.
Strengthening water security in climate-sensitive regions
WG Kraftwerke GmbH and Windgiant Energy GmbH have focused heavily on developing technologies that combine renewable energy generation with sustainable water recovery. One of the most significant measurable impacts of their solution is the ability of the company’s wind energy tower systems to extract large amounts of water directly from the atmosphere while simultaneously supporting clean energy production.
The design took into account transportation, logistics for assembly, and low-maintenance service for all wind turbine tower types, ranging from 30 kW to 1,600 kW
In all designs, special emphasis was placed on the ability to transport all double-turbine components, as well as the wind energy tower components, by truck throughout Europe via road without incurring additional costs from special transport fees. Thus, there are no time-consuming truck transports to the assembly site for partial assembly.
The wind energy tower and water extraction technology were developed and designed based on the “SELS” principle.
SELS stands for “Safety, Efficiency, Longevity, and Service-Saving.”
Measured system capabilities include
- 200 kW tower: nearly 44,000 liters of water recovery per day
- 800 kW tower: approximately 210,000 liters per day
- Scalable systems ranging from 30 kW to 1,600 kW
- Simultaneous renewable energy generation and water recovery
These results demonstrate the potential of the company’s technology to support both renewable energy needs and long-term water security, particularly for agriculture, industrial applications, and climate-sensitive regions.
The companies have also developed scalable wind energy tower systems ranging from 30 kW to 1,600 kW, allowing the technology to serve both smaller communities and larger industrial operations. By combining energy generation, airflow optimization, and atmospheric water recovery into one integrated system, WG Kraftwerke GmbH and Windgiant Energy GmbH are working toward more efficient resource utilization, lower environmental impact, and stronger climate-resilient infrastructure solutions.
The rise of independent energy communities:
According to Gerhard Wieser, the future of renewable energy in 2026 and beyond will be shaped by the growth of sustainable energy communities capable of producing reliable and more independent power at a regional level. The industry is steadily moving away from isolated energy systems toward integrated solutions that combine wind, solar, hydro, energy storage, and hydrogen technologies into one connected energy network. This approach can help communities achieve greater energy stability, reduce long-term costs, and strengthen energy security in an increasingly uncertain global environment.
Another major trend will be the demand for renewable technologies that are not only efficient but also practical, environmentally responsible, and community-friendly. Future energy systems must operate with lower noise levels, adapt to different environmental conditions, and blend more naturally into surrounding landscapes while meeting strict sustainability standards. At the same time, climate-related challenges are increasing the importance of water security alongside energy security. Gerhard Wieser believes technologies that combine renewable energy generation with sustainable water recovery will play a critical role in supporting agriculture, industries, and communities facing long-term environmental and resource challenges in the years ahead.
Speech is silver; silence is golden
When asked to share advice for aspiring leaders, entrepreneurs, and industry professionals, Gerhard Wieser offered a simple yet powerful message: “Speech is silver; silence is golden.” For him, true leadership is not defined by constant talk, but by focused action, disciplined thinking, and delivering meaningful results.
A roadmap for 2027
WG Kraftwerke GmbH and Windgiant Energy GmbH are currently moving forward with the planned manufacturing and deployment of their wind energy tower systems, beginning with the installation of the first 30 kW reference tower at the company headquarters. This system is designed to generate renewable energy while simultaneously extracting water from the airflow. Starting in 2027, the companies plan to launch the first production series of 150 kW wind energy towers for the Austrian and German markets. These systems are intended to support self-sufficient low-voltage power supply solutions while also allowing surplus energy with simultaneous water separation from the air stream to be fed into the public grid.
Under Gerhard Wieser’s leadership, WG Kraftwerke GmbH and Windgiant Energy GmbH are also exploring international manufacturing and licensing partnerships to expand the reach of their renewable energy and water-extraction technologies. The companies are open to collaborations involving national patent sales, licensing agreements for systems ranging from 30 kW to 1,600 kW, and partnerships with industrial enterprises and investors interested in building production capabilities for European and global markets. Their long-term vision is to accelerate access to sustainable energy and water solutions across different regions of the world, especially as climate change and resource security continue to create growing global challenges. For the companies, water is not just a resource but one of the most essential foundations of life, particularly in regions where access to clean water remains limited.
Quick takes
1. One quote that motivates you the most:
Don’t put off until tomorrow what you can do today.
2. One piece of advice you would give to aspiring entrepreneurs or future business leaders:
Speech is silver; silence is golden.
If you want to achieve a set goal or project, don’t talk about it much.
Once the goal or project is achieved, there’s no need to talk about it anymore.
3. A film or book you would recommend to anyone in business or leadership positions:
The film “Ben-Hur” with Charlton Heston:
The story portrays the will and determination of one person (Ben-Hur).
What a person is capable of when injustice has befallen him and his family, and who successfully and resolutely risks his life to achieve justice
Gerhard Wieser’s 5 impactful business mantras
- Build solutions that solve real-world problems, not just market trends.
- Long-term sustainability begins with responsibility toward energy, water, and communities.
- Innovation becomes meaningful when practical engineering meets common sense.
- True progress comes from consistent action, disciplined thinking, and quiet execution.
- The future belongs to technologies that create both energy security and resource independence.
