SciTransfer
HYSTORE · Project

High-Efficiency Thermal Storage Systems for Building Energy Management and Grid Stability

energyTestedTRL 5

Imagine a giant, smart battery, but instead of storing electricity, it stores heat and cold. It uses special materials that act like sponges for thermal energy, making them much smaller and cheaper than old-school water tanks. This allows buildings to save energy when it's cheap and use it when it's expensive, while helping the power grid stay stable.

By the numbers
150%
increase in energy density
50%
reduction in CAPEX
50%
reduction in design and installation effort
15%
minimum energy cost savings
0.04 €/kWh
target LCOS by 2030
The business problem

What needed solving

Current thermal storage is often too bulky, expensive to install, and acts only as a passive backup. This prevents buildings from effectively participating in energy markets or reducing peak demand costs.

The solution

What was built

A suite of high-density storage concepts (PCM and TCM) and an ICT toolset including a smart aggregator and open-source multi-service platform.

Audience

Who needs this

HVAC equipment manufacturersDistrict heating/cooling operatorsEnergy aggregation startupsCommercial real estate developers
Business applications

Who can put this to work

Construction & HVAC
SME
Target: HVAC Installation and System Integrators

If you are an HVAC installer dealing with complex, space-consuming heating and cooling setups — this project developed plug-and-play TES solutions that reduce design and installation effort by 50%. This allows for faster deployment and lower labor costs per project.

Energy Utilities
enterprise
Target: Grid Operators and Energy Aggregators

If you are a grid operator dealing with unstable energy loads from renewables — this project developed a smart aggregator and multi-service platform that turns building thermal storage into a grid service. This enables better sector coupling and enhanced grid stability.

Real Estate Management
any
Target: Commercial Building Owners

If you are a building owner dealing with high energy bills — this project developed high-density storage systems that can achieve energy cost savings of at least 15%. This directly improves the bottom line of facility operations.

Frequently asked

Quick answers

What is the expected cost of these systems?

The project aims for a Levelized Cost of Storage (LCOS) of approximately 0.04 €/kWh by 2030, targeting a competitive rate of 0.05 €/kW/cycle.

Can this be scaled for industrial use?

Based on available project data, the project includes 4 use case applications in different climates for both District Heating/Cooling connected and non-connected buildings, indicating scalability across various urban environments.

Who owns the intellectual property or licensing?

Based on available project data, the specific licensing terms are not listed, but the project is developing an open-source multi-service platform for its aggregator.

How does it integrate with existing buildings?

Integration is simplified through pre-defined and standardized guidelines and a 'plug-and-play' approach to reduce installation effort by 50%.

What is the project timeline for results?

The project period runs from 2023-01-01 to 2027-06-30, with initial ICT toolsets and PCM solution tests already reported.

Consortium

Who built it

The consortium is heavily industry-driven, with 12 industrial partners (63% ratio) and 10 SMEs across 8 countries. This strong commercial presence, combined with 7 academic and research entities, suggests the project is focused on market viability and practical deployment rather than pure theory.

How to reach the team

Contact ARMENGOL & ROS CONSULTORS I ASSOCIATS SL in Spain

Next steps

Talk to the team behind this work.

Contact us to connect with the HYSTORE consortium for early adoption of high-density TES systems.