Renewable Energies on the Rise – But What Happens to Excess Electricity?

The strong growth in wind and PV systems presents us with a new challenge: creating storage solutions for excess green electricity, which are currently insufficiently available. The energy mix must be reliable for consumers and available at competitive prices.

Dark doldrums? Not with us! Our patented Power-to-Gas technology enables 100% utilization of green electricity. We make economic and efficient storage of excess electricity possible by converting it into storable, versatile synthetic natural gas – with all the advantages of proven natural gas technology but without emissions.

Our customers – commercial and residential property owners, municipal utilities, contracting companies – secure sustainable energy, stable costs, and independence from the grid with our innovative CYTOK solutions.

 

Success Story: Bernsteinsee

Our technology has passed its "trial by fire": Since 2020, a plant using CYTOK Power-to-Gas technology at Bernsteinsee Hotel GmbH in Lower Saxony has guaranteed a reliable, economical, and emission-free energy supply for the entire hotel operation, including the water ski facility.

With the current financing round, we want to further establish our technology and expand production. Join us in making renewable energy accessible to consumers around the clock and invest now in CYTOK.

curious – innovative – open-minded – idealistic – dynamic – positive-thinking

 

These are the attributes of our crew of highly qualified employees from a wide range of disciplines. Together, we form a well-coordinated and strong team.

 

The other crew members are:

Balaji Parthasarathy (M. Sc.) as an energy systems engineer plans and sizes our power-to-gas plants based on analyses and simulations.

Jens Steckel, as an automation technician, is responsible for programming and integrating the control technology into our systems, as well as commissioning and maintenance.

Iven Kauffeldt is a mechatronics and design technician, responsible for planning, designing, and implementing technical projects and the development of our container solution, as well as analyzing and optimizing running systems.

Richard Vopel, as a PR and marketing professional, ensures the implementation of our PR and marketing strategies to increase our visibility and make sure we shine not only technologically but also communicatively.

Our decentralized and emission-free energy supply systems solve the challenge of sustainable energy supply. The Power-to-Gas solutions combine the advantages of innovative technologies and, for the first time, enable the 100% use and storage of self-produced electricity from wind / PV systems at economically attractive conditions.

When the storage is fully charged, our customers secure energy from 3,250 kWh upwards. That is as much electricity as a two-person household in Germany consumes in one year. The storage volume can be flexibly increased and charged and discharged multiple times per year.

You can see what our already installed Power-to-Gas technology at Bernsteinsee in Lower Saxony looks like in the following video: 

 

How exactly does our system work? Explained step by step:

Step 1: The intelligent control

Our control center ensures fully automatic and efficient power distribution from PV & wind power systems, thanks to intelligent energy management. A small battery storage already increases the use of green electricity. Remaining surpluses are stored using the CYTOK Power-to-Gas technology.

Weather forecasts and empirical data optimize the operation, guaranteeing an efficient and safe system operation.

Step 2: Electrolysis

Excess electricity splits water (H₂O) in an electrolyzer into hydrogen (H₂) and oxygen (O₂). The hydrogen is used directly for the production of synthetic natural gas and the oxygen is stored.

Step 3: Methanation

Here, so-called synthesis of hydrogen and CO₂ produces green natural gas (SNG). This process is called methanation and is based on the Sabatier process.

Step 4: Storage

The green natural gas (SNG) is compressed and stored on demand in standard pressure tanks. Due to the large storage capacity of SNG in the MW range, market independence is created.

Step 5: Emission-free use of SNG

When electricity, heat or cooling is needed, the stored gas can be burned in conventional combined heat and power plants or boilers, with one difference:

With our modified oxyfuel process, which uses the oxygen from electrolysis, the combustion of green natural gas (SNG) takes place completely closed and thus emission-free! 

Only pure CO₂ is produced, which is used again for methanation.

A thoroughly clean solution!

Plug-in container solutions

Next step: From individual planning to product

Our plug-in container solution significantly reduces planning and personnel effort for projects through standardization and accelerates project implementation through modularization. This leads to significant cost reductions and long-term revenue and profit increases.

1. Construction and Building Sector (Housing Industry, Municipalities, Hotels, and Leisure Facilities)

Challenges

• Legal requirements such as the GEG mandate sustainable energy concepts
• Rising energy costs and high dependence on market prices
• Lack of efficient storage solutions

CYTOK Solution

• Decentralized Power-to-Gas systems for 100% self-consumption and storage of PV and wind power
• Intelligent control & utilization of process heat for high efficiency
• From 2026: modular plug-in container solution for cost-effective implementation
• Use of natural gas infrastructure for building energy supply

Customer Benefits

• GEG-compliant energy supply for neighborhoods and public buildings
• Reduced energy costs & independence from grid electricity
• Sustainable tenant electricity models

 

 

2. Small and Medium-sized Enterprises (SMEs)

Challenges

• Rising, unpredictable energy costs threaten competitiveness
• Sustainability goals require new energy concepts
• Independent, reliable energy supply is essential

CYTOK Solution

• Plannable, stable energy supply through own renewable energies
• Cost-effective use of grid surpluses
• Easy integration into existing infrastructure

Customer Benefits

• Plannable costs & reduced dependence on energy markets
• Fulfillment of sustainable production requirements
• Use of existing heat & power systems without costly retrofitting

With CYTOK Solutions, our customers realize their CO₂-free energy future – efficient, economical & flexibly integrable into existing infrastructures.

„The value of an idea lies in its use“ (Thomas Edison)

 

The transformation of energy supply to sustainable sources is an urgent necessity.

At the same time, our economy is based on an established energy infrastructure that has been geared towards affordable fossil fuels over decades and cannot be completely switched overnight.

To fully exploit the potential of pure hydrogen, infrastructure and components must be further developed – a process that takes time. But instead of waiting, we can already use solutions that enable an immediate and effective reduction of emissions.

Therefore, we deploy a technology that makes synthetic natural gas usable emission-free for the first time and at the same time is redundant to existing systems.

Sustainable transformation with innovative technology that combines efficiency, emission freedom, and economic viability.

Instead of waiting for a complete new installation, we rely on an intelligent further development of existing technologies. Therefore, we have innovatively combined and further developed proven and new technologies:

• Carbon Capture and Utilization (CCU) for the use of CO₂ as a raw material
• Innovative, emission-free combustion in a self-developed modified oxyfuel process
• Synthetic natural gas (SNG) and CO₂ remain in a closed loop
• Additionally, nitrogen oxides and fine dust are excluded
• Conventional infrastructures and components for natural gas can be used
• Patent granted in Germany, Europe, and China
• Proven innovative: BAFA confirms the innovative strength in 2024 within the funding program „INVEST – Grant for Venture Capital“

The market for sustainable energy production, supply, and storage is growing relentlessly worldwide, making an increasing capacity of energy storage systems necessary. The market in the building sector alone is estimated at around €200 billion (as of 2024).

As coal-fired power plants are shut down and the share of green energy in the overall energy mix continues to rise, new storage systems must be created. This has now been recognized by policymakers and included as requirements for the future in initial legislation.

Storage is not only possible through large centralized plants but must also be approached in a decentralized way. Widespread decentralized systems can store large amounts of local surplus electricity. Maximizing self-consumption is not only sustainable and economical but also relieves the public power grid.

CYTOK is excellently positioned here, as our systems enable 100% self-consumption and can be optimally integrated into the existing natural gas infrastructure. In concrete terms, this means cost-effective use of surplus grid electricity – without expensive retrofitting.

Our priority is therefore on the energy supply of buildings with renewable energies for the following target groups:

• Owners and/or energy providers of residential buildings, housing complexes, and neighborhoods
• Commercial businesses and industrial companies that must transform their production processes to sustainable supply chains
• Energy suppliers, especially contractors, who must also prove their share of renewable energies in the future
• Municipalities that must implement sustainable concepts for their facilities as part of mandatory municipal heat planning

Our focus is on the German and European market. Since demand from other European countries is increasing, we have already launched initial international projects, for example in the Netherlands, but also in cooperation with our Japanese partner GPSS Eng.

CYTOK in Competition: Unique Positioning in the Power-to-Gas Market

The market for power-to-gas technologies is growing rapidly as they enable emission-neutral energy carriers to replace fossil fuels. Additionally, they efficiently utilize peak loads and surpluses of green electricity.

While large corporations focus on megawatt projects and global hydrogen production, decentralized solutions for neighborhoods, commercial areas, and residential complexes are lacking – a market with enormous potential. CYTOK addresses this with unique advantages:

Sustainability: Our closed combustion process using a modified oxyfuel method eliminates CO₂, methane, nitrogen oxide, and fine dust emissions – unique in the market.

Independence: 100% self-consumption of green electricity reduces dependency on volatile energy markets.

Economic efficiency: Established natural gas technologies, intelligent control, and utilization of process heat optimize the ROI.

Supply security: Redundancy with electricity and gas grids ensures highest availability, which pure hydrogen solutions cannot offer.

Patent protection: Our process is patented in key industrial nations. The patents are held by Ventec GmbH, led by Martin Weiss and Klaus Schirmer – the same individuals managing CYTOK GmbH. CYTOK GmbH is the exclusive technology partner of Ventec GmbH, which itself does not implement projects. Furthermore, CYTOK GmbH holds contractually fixed, unlimited usage rights to the patents.

Experience: As one of the few companies, we have operated power-to-gas plants in continuous operation for years.

CYTOK combines technological excellence, economic efficiency, and sustainability – a market-leading solution for decentralized energy supply.

CYTOK: System provider for customized energy solutions

As a green and deep-tech company, we take on challenges for our customers and offer individual solutions.

CYTOK's business and revenue models

• Planning contracts, transformation concepts, and feasibility studies: After initial sales discussions, projects start depending on size with CYTOK being commissioned for preliminary planning/concepts, transformation concepts, or feasibility studies.

• Plant construction: Execution planning, delivery, installation, and commissioning. From 2026 onwards, not only customized but also as a plug-in container solution.

• Service contracts for maintenance and repair – after sales: Recurring revenue through maintenance contracts, updates, and optimizations (e.g., Bernsteinsee since 2023).

• Knowledge transfer & training: Trainings and knowledge transfer within the framework of international licensing of CYTOK technology.

Our sales activities are supported by marketing through direct outreach via our established networks, with strong partners like ABB AG and GPSS Eng. Ltd. promoting us globally. Participation in trade fairs and conferences as well as publications increase our reach through targeted communications in specialist journals and online platforms.

Since 2025, we regularly present at trade fairs such as Hannover Messe and Hydrogen Technology Expo Europe.

Sales efforts are further supported by targeted events around our technology and especially through the presentation of our reference plant at Bernsteinsee in Lower Saxony, where future customers can experience our solutions in practice.

PR & Marketing

With new personnel reinforcements, we are optimizing our online presence, brochures, and press releases. In the future, we also plan direct outreach via newsletters.

   

CYTOK: Milestones since founding

Since its founding in May 2023, the hydrogen pirates have laid important foundations for the future. With a team of 7 Power-to-Gas experts, they successfully completed the feasibility study for the Helmholtz Center Dresden-Rossendorf (HZDR).

With GPSS Engineering Ltd. (Japan), a preliminary license agreement and cooperation were agreed upon – laying the foundation for a long-term partnership. GPSS will establish the CYTOK Power-to-Gas technology in Japan & APAC, including a planned pilot plant within the next two years.

The proof-of-concept for district applications demonstrated the potential of CYTOK’s technology for residential energy supply to Dutch customers. Another proof-of-concept was developed for a commercial company to achieve 100% self-consumption of a 900 kWp PV system.

With the launch of our PR & marketing team in December 2023 and the release of our website, we took the first step towards greater reach and visibility. Trade fairs, symposiums, and network memberships support this effort.

A strategic cooperation with ABB AG combines market knowledge, corporate strength, and start-up agility and has already been successfully presented at industry congresses.

After a pitch event, we gained our first investor for the Power-to-Gas technology with GIMIC GmbH – an important milestone for achieving our further goals.

    

 

 

The goal of CYTOK is solid growth, accelerated by raised capital, in order to become one of the leading players in the field of Power-to-Gas technologies and emission-free energy supply in the long term.

With our Power-to-Gas plants, we will demonstrate the diverse practical applications of CYTOK’s technology across various sectors. At the same time, we are pushing forward the development of our plug-in container solution to significantly increase sales of our systems in the coming years.

Our foundation is the German market, where we already have established customer relationships that we will continue to expand. In international markets such as the Netherlands and Japan, we also have existing customer connections that will be further developed. In the future, the area of energy contracting will also play an important role.

With this financing round, we want to ignite the turbo and rapidly drive our company’s growth forward.

A key element is the technical implementation of our plans for the plug-in container solution for our energy systems. This significantly reduces plant costs and implementation time, minimizes execution risks through standardization, and ultimately increases profitability. These points act as a leverage effect, enabling us to realize more projects within the same timeframe.

Therefore, another focus for the use of funds is to expand the hydrogen pirates crew with new skilled professionals.

A particular focus is on further development and the first module production of our container solution at our future technical center. In addition, marketing will be expanded through trade fair appearances and other PR measures to further increase awareness.

1. Innovative green / deep tech

• Patented Power-to-Gas Technology: CYTOK has a technology developed and patented since 2012 that enables emission-free energy production by converting hydrogen and CO₂ into synthetic natural gas (SNG).
• Closed CO₂ and Methane Loop: 100% emission-free combustion and use of CO₂ as a raw material through our modified oxyfuel process.

2. Growth Potential

• Scalable Solutions: CYTOK’s container-based Power-to-Gas systems enable flexible applications from small plants to large-scale commercial projects.
• Global Scalability: The technology can be used worldwide in various sectors and is supported by partners such as GPSS from Japan and ABB.

3. Competitive Advantages

• Unique Technology: The modified oxyfuel process and the closed SNG and CO₂ loops set CYTOK apart from competitors.
• Experienced Team: The founders and the entire team have many years of experience in the Power-to-Gas sector.
• Redundancy: The redundancy capability of CYTOK’s Power-to-Gas technology provides an additional advantage compared to pure hydrogen technology.

4. Focus on Future-Proof Markets

• Sustainable Energy Supply: CYTOK addresses the urgent need to efficiently store renewable energy and replace fossil fuels.
• Sector Coupling: The technology links the electricity and heat sectors and potentially the mobility sector, which is essential in a decarbonized economy.

5. Contribution to Global Climate Goals

• Avoid Emissions: CYTOK’s solutions make a direct contribution to reducing greenhouse gases.
• Resource Efficiency: Closed SNG and CO₂ loops (CCU) and the use of waste heat ensure optimal resource utilization.

In May 2023, we — Martin Weiss and Klaus Schirmer along with 5 other Power-to-Gas experts — founded the CYTOK hydrogen pirates in Rostock. Our goal is to establish the CYTOK technology, developed and patented since 2012, both in Germany and internationally.

We secured the patent rights to the technology early on, gaining a significant know-how advantage over other market participants. Thanks to our many years of industry expertise and initial customer contracts, the start in 2023 has been outstanding.

Unlike recent developments in the hydrogen sector, the CYTOK systems are immediately market-ready: This is due to the use of innovative P2G (Power to Gas) technology combined with proven natural gas components and redundancy to existing natural gas infrastructures.

In this environment, besides the reference plant at Bernsteinsee in Lower Saxony, we have already successfully completed new projects with feasibility studies and preliminary planning.

The construction of the previously planned projects will take place at the end of the second quarter 2025. In parallel, new projects will be acquired, the technology further optimized, and scaled by the development of the plug-in container solution. This will increase economic efficiency, further strengthen the competitive advantage, and boost sales figures.