SciTransfer
BEST-Storage · Project

Smart Thermal Energy Storage Systems for Reducing Building Energy Costs and Grid Peaks

energyPilotedTRL 6

Imagine a giant battery, but for heat and cold instead of electricity. This system saves extra energy when it's cheap or sunny and lets you use it during the coldest winter months or the hottest summer days. It uses special materials and smart controls to make sure your building stays comfortable without paying peak electricity prices.

By the numbers
50%
EU-27 annual energy consumption attributed to heating and cooling
800 GWh
Projected global installed capacity of thermal energy storage by 2030
The business problem

What needed solving

Buildings consume massive amounts of electricity for heating and cooling, often creating peak demands that strain the grid and increase costs. Current long-term storage for renewables is too scarce and expensive for widespread use.

The solution

What was built

Four storage solutions: one thermo-chemical (TCM) for seasons, two PCM slurry concepts for cold storage, and one vacuum insulated (VI) water vessel for heat.

Audience

Who needs this

HVAC equipment manufacturersSmart home technology integratorsDistrict heating operatorsGreen building architectsEnergy grid management companies
Business applications

Who can put this to work

Construction & HVAC
enterprise
Target: Smart building developer

If you are a developer dealing with high energy costs in new builds — this project developed vacuum insulated water storage and PCM slurries that shift electricity use from peak to off-peak periods. This reduces operational costs for the end-user while stabilizing the grid.

Energy Utilities
enterprise
Target: Grid operator

If you are a utility provider dealing with electricity peak demand from heat pumps and EVs — this project developed model predictive controls for thermal storage that reduce peak loads. This helps make the electricity grid more stable and resilient.

Climate Tech
SME
Target: Seasonal energy storage provider

If you are a green energy company dealing with the lack of solar energy in winter — this project developed a thermo-chemical loss-free storage for long-term applications. This allows renewable energy captured in summer to be used for heating in cold winter months.

Frequently asked

Quick answers

How does this reduce energy costs?

The system uses model predictive controls (MPC) to take advantage of variable electricity prices, shifting energy use to off-peak periods to minimize operational costs.

Is this technology ready for industrial scale?

The project is testing four different storage solutions at various TRL levels across three real demo sites, including a single-family home in Estonia.

What are the IP and licensing options?

Based on available project data, specific licensing terms are not listed, but the project involves 4 industrial partners and 3 SMEs who are developing the modular storage solutions.

How does it handle seasonal energy gaps?

It utilizes a thermo-chemical material (TCM) storage designed specifically for long-term, loss-free seasonal storage to cover heating needs when renewables are scarce.

What is the timeline for deployment?

The project runs from 2023-01-01 to 2026-12-31, with demonstrations occurring in real-world conditions during this period.

Consortium

Who built it

The consortium is well-balanced for commercialization, featuring 12 partners across 7 countries. With a 33% industry ratio (4 industrial partners and 3 SMEs), there is a strong bridge between the 3 universities and 3 research centers and the actual market. The presence of SMEs suggests a focus on agile, modular product development.

How to reach the team

Contact SOLINTEL M & P SL in Spain

Next steps

Talk to the team behind this work.

Contact us to explore licensing opportunities for PCM slurry or TCM storage technologies.