Modular Thermal Energy Storage (TES)
A compact, high-temperature energy hub for heating, cooling, and hybrid applications.
The Challenge
Heating and cooling account for nearly 50% of global final energy use and generate more than 15 gigatonnes of CO₂ emissions every year.
At the same time, storing green electricity and industrial waste heat in an affordable, efficient, and scalable way remains a major challenge. Most existing solutions are either too costly, too bulky, or limited to a single use.
This leaves a critical gap: industries, farms, and communities need modular, affordable, and multi-functional storage that can later be converted into heating, cooling, or power generation as needed.
Our Solution: Modular TES
Greenco Tech’s Thermal Energy Storage (TES) platform is engineered for 900–1500 °C storage using environmentally friendly materials. Each unit is a modular, containerized system that can be deployed flexibly across diverse energy applications.
Key features:
- Compact, high-density storage – up to 16–19 MWhₜ per 40-foot unit
- Cost-efficient – preliminary estimates of ~€5/kWhₜ, less than 5% of battery storage costs
- Durable – designed for 3,000+ cycles and 15–30 years of service life
- Hybrid-ready – integrates seamlessly with heat-driven technologies such as heat pumps, power generators, and industrial steam systems
Why It Matters
- Cuts costs – store renewable electricity or waste heat at a fraction of battery costs
- Multi-functional – delivers heat, steam, or cooling from the same unit
- Scalable – containerized design supports phased rollout from small farms to heavy industry
- Climate impact – each unit can save ~600 tons of CO₂ per year when replacing natural gas
Use Cases
The TES platform is versatile across sectors:
- Agriculture & Greenhouses – year-round fossil-free heating and cooling
- Food & Dairy Industry – efficient recovery and reuse of process heat
- District Heating & Housing – affordable, clean heating for communities
- Industrial Processes (Cement, Steel, Paper) – high-temperature heat at scale
- Hybrid Energy Systems – integration with CO₂ capture, Thermal Booster, or solar/wind for resilient clean energy solutions

Where We Are Today
We are developing a lab-scale prototype to validate the modular architecture and demonstrate performance. The project is supported by Vinnova Innovativa Startups 2025 and involves collaborations with Chalmers University of Technology, CIT Renergy, and industry partners.

