THE SYSTEM
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The PATENTED Zeolite Solar Reactor is a next-generation, fully green and compact CHP (Combined Heat and Power) system capable of producing electricity and heat simultaneously.
Invented and patented by Andrea Goretti, it exploits the thermochemical power of synthetic zeolite and the renewable energy of the sun, integrating advanced and ultra-quiet conversion technologies.
By harnessing the calorific adsorption potential of synthetic zeolite, the system transforms solar energy into dispatchable thermal and electrical output — delivering sustainable performance with zero combustion and zero emissions.
The system validation is guaranteed by physicists and engineers ranked among the top 2% in the world, who have conducted research for NASA and leading universities in Europe.
The system operates through a two-phase thermochemical cycle, enabling controllable and dispatchable renewable energy production both day and night.
During the night phase, the reactor enters the adsorption cycle. The synthetic zeolite adsorbs approximately 16 liters of H₂O, triggering a highly exothermic reaction that generates temperatures of around 180°C, by controlling it; higher temperatures can be reached.
This high-temperature heat output can be directly converted into electricity through integrated thermoelectric generators (TEGs) and a free piston silent Stirling engine, or it can be used as high-efficiency thermal energy for heating or industrial applications.
Unlike conventional battery systems, the Zeolite Solar Reactor does not suffer from chemical degradation and does not rely on rare or critical raw materials.
It provides silent, stable, and emission-free energy generation.
During the daytime phase, the solar vacuum tube collector regenerates the zeolite through a desorption process. In approximately three hours, solar thermal energy is sufficient to release the previously adsorbed water, fully reactivating the material for the next cycle. Any excess solar heat beyond what is required for regeneration can be converted into electricity or used directly as thermal output. This enables the system to function as a continuous hybrid solar CHP platform, maximizing energy utilization during peak solar hours.
Heat extraction is done thanks to a custom heat exchnager, with pressurized water, that brings heat to an external device.
By integrating thermochemical storage, high-temperature solar collection, and hybrid power conversion technologies, the Zeolite Solar Reactor overcomes the intermittency limitations of traditional solar systems. It delivers dispatchable renewable energy, dual-output electricity and heat, high energy density storage, a compact footprint, and scalable architecture — all within a fully sustainable, combustion-free framework.
At the current stage of development, academic validated performance and sizing calculations are being completed and validated.
The reactor is being engineered in detailed 3D design at an advanced middle-engineering phase. Executive-level engineering development is the next step toward industrialization.
European patents have been filed and accepted, and the international extension under the PCT is currently in an advanced stage of application.
This establishes a solid intellectual property foundation supporting scalability, industrial partnerships, and global market expansion.
Based on validated performance calculations and deliberately conservative modeling assumptions, the Zeolite Solar Reactor is currently estimated to generate approximately min 2.30 to max 8.00 kWh of electrical energy per day, depending on operating conditions and solar availability.
These figures are conservative by design.
Additional safety margins were intentionally incorporated into the thermodynamic simulations, adsorption efficiency parameters, and electrical conversion assumptions in order to avoid overstating system performance at this stage of development.
The projected range reflects:
- Standard solar irradiation conditions
- Optimized adsorption/desorption cycling
- Hybrid conversion through TEGs and Stirling engine
- Conservative efficiency coefficients across all subsystems
It is important to emphasize that these are conservative estimates derived from precautionary calculation methods.
The system has not been modeled under aggressive or best-case assumptions.
In addition to electrical production, the reactor simultaneously delivers high-temperature thermal energy, significantly increasing total usable energy output and overall system efficiency.
As the project advances toward executive engineering and prototype validation, performance data will be refined under real-world operating conditions.
Upside performance potential exists as system optimization, material tuning, and component integration further improve overall conversion efficiency.
The Zeolite Solar Reactor is designed as a flexible and modular energy platform suitable for multiple deployment scenarios.
Its compact architecture and dual-output capability (electricity and heat) make it ideal for:
- Single-family residential applications
- Multi-unit residential buildings
- Modular distributed energy production systems
- Off-grid installations and remote locations
- Marine and nautical applications
- Military field camps and temporary installations
- Mobile and transport-integrated energy systems
The system’s silent operation, absence of combustion, and independence from fossil fuels make it particularly attractive for environments where reliability, autonomy, and low environmental impact are critical.
Thanks to its scalable architecture, the technology can operate as a standalone unit or be integrated into modular energy arrays, enabling adaptable deployment across residential, industrial, defense, and mobility sectors.
System Configurations
The system can be configured in different ways, depending on the user’s energy needs and the available installation space.
The basic configuration can operate as a purely thermal system, using the zeolite reactor as a high-density heat storage unit. In this mode, solar energy is used during the day to regenerate the zeolite, while at night the reactor releases useful heat for space heating, domestic hot water, or other thermal applications.
Alternatively, the system can be configured as a hybrid thermal + photovoltaic solution, for example with:
4 m² of high-efficiency photovoltaic panels
+
6 m² of evacuated tube solar thermal collectors
In this configuration, the 6 m² of thermal collectors are dedicated to the daily regeneration of the zeolite, while the 4 m² of high-efficiency photovoltaic panels produce electricity during the day.
This solution provides additional electricity generation without mechanical moving parts, avoiding the complexity, cost, and maintenance associated with systems such as Stirling engines or microturbines.
The main advantage of the hybrid architecture is that daytime electricity is supplied directly by the photovoltaic panels, while nighttime energy availability does not necessarily depend on a conventional electrical battery. In fact, the system integrates a zeolite reactor, capable of storing energy in thermochemical form and releasing it during the night.
During the nighttime phase, the zeolite reactor can provide:
direct nighttime heat
or, through TEG modules:
a share of nighttime electricity
In this way, the system can reduce or potentially eliminate the need for electrical batteries during the nighttime phase, shifting the main storage function from electrochemical storage to thermochemical storage.
Advantages of the Hybrid PV + Thermal Configuration
The configuration with high-efficiency photovoltaic panels and thermal collectors enables:
- daytime electricity production through PV;
- solar regeneration of the zeolite through thermal collectors;
- availability of nighttime heat stored in the zeolite reactor;
- possible nighttime electricity generation through TEG modules;
- no mechanical moving parts in the main electricity generation system;
- lower complexity compared with systems based on thermal engines;
- potentially lower costs;
- reduced dependence on electrical batteries.
Operating Summary
DAYTIME
4 m² photovoltaic system → direct electricity production
6 m² thermal collectors → zeolite regeneration
NIGHTTIME
Zeolite reactor → stored heat
Zeolite reactor + TEG → possible nighttime electricity generation
The system is not limited to a single configuration. It can be implemented either as a purely thermal solution or as a hybrid photovoltaic + thermal system.
The hybrid configuration with 4 m² of high-efficiency photovoltaic panels and 6 m² of thermal collectors enables simple, reliable daytime electricity generation without moving parts, while the zeolite reactor provides energy storage for the nighttime phase in the form of heat or, through TEG modules, as nighttime electricity.
This architecture can reduce the need for electrical batteries while maintaining distributed energy production between day and night.
The proposed system uses a thermochemical cycle based on zeolite to capture solar heat, store it, and convert it into electricity even after sunset. Unlike conventional photovoltaic panels, which generate electricity only during daylight hours, this technology allows solar energy collected during the day to be stored and released in a controlled way during the night, extending energy availability across the full 24-hour cycle.
Typical photovoltaic panels convert approximately 20–21% of incoming solar radiation directly into electricity. In the proposed system, solar energy is first collected as heat and stored in a thermochemical adsorption process. The stored thermal energy can then be converted into electricity using different technologies depending on the configuration of the system.
Current design estimates indicate a thermal-to-electric conversion efficiency of about 4-5% using thermoelectric generators (TEG) and approximately 12%-18% using a small Stirling engine operating in the same temperature range.
At night, the system can convert energy using TEGs, a silent system with no moving parts. During the day, after any regeneration, it can convert using TEGs or a Stirling engine for much greater efficiency.Although conventional photovoltaic panels achieve higher direct electrical conversion efficiency, the proposed system is designed to maximize total useful energy utilization. In addition to producing electricity, the architecture allows the recovery and use of residual thermal energy while simultaneously providing integrated energy storage through the thermochemical cycle. This enables nighttime power generation and improved overall solar energy utilization across the full daily cycle.
Rather than acting as a direct replacement for photovoltaic panels, the technology is intended as a hybrid solar energy platform that combines generation, storage, and thermal energy recovery within a single compact system, making it suitable for off-grid installations, microgrids, and distributed energy applications where continuous energy availability is critical.
The project promotes equal opportunities and non-discrimination in all its activities.
Collaboration with research institutions, technical partners and future team members will follow principles of gender equality, transparency and merit-based selection.
The project commits to ensuring that recruitment, collaboration and partnership opportunities are open to all individuals regardless of gender.
In future stages of development, partnerships with universities and research institutions will follow the gender equality policies required by European research programs.
The project also encourages inclusive participation in research, innovation and decision-making processes in line with European standards for responsible research and innovation.
A target of improving gender balance in the team will be monitored annually.
A simple internal review of gender equality indicators will be conducted at least once per year.
Janurary, 2026
Conceptual explanation System Architecture
Solar collector solutions
