Hochtemperaturspeicher in einer Heizzentrale eines großen Wohnblocks in Berlin

Our thermal energy
storage system

Making renewable energy reliable

TESCORE is a high-temperature energy storage system that stores fluctuating wind and solar PV power as thermal energy with virtually loss-free conversion. This thermal energy can be released and used at a later time as process heat or for district heating.

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Power-to-heat for the energy transition in the heating (and cooling) sector

TESCORE is a power-to-heat technology based on the idea of sector coupling. Wind and solar PV power are initially available as electricity. TESCORE converts cheap electricity generated during peak output periods into a reliable and steady supply of thermal energy – a win-win situation for an economically viable transition in the heating (and cooling) sector.

By coupling the electricity and heat sectors, TESCORE achieves up to 95% efficiency.

Illustration of the TESCORE thermal energy storage system

Simultaneous charging and discharging ensures maximum availability and optimises resource usage

Flexible charging

Charging of the TESCORE system

TESCORE can be charged in four to six hours (spread over a day or continuously) – for example, during off-peak periods when the grid is not heavily used and electricity prices drop. A resistance heater converts the electricity into heat which is transferred by a gas circuit into the core of the storage unit. The core is made of steel elements that can be heated to as much as 600 °C and store this heat with marginal losses of less than 1% per day.

On-demand discharging

Discharging of the TESCORE system

Thermal energy can be discharged whenever it is required. The same gas circuit transfers the stored heat to a heat exchanger which supplies process heat between 150 °C and 400 °C or process steam between 150 °C and 350 °C for any application. The process is similar for cooling applications.

Steel storage core

The modules at the core of the system are made of structural steel which has numerous benefits:

  • It can be fully recycled and has high residual value.
  • Its high energy density means it can store a lot of energy in a small space.
  • It is robust, giving TESCORE a service life of more than 20 years.
  • Structural steel is industry-proven, guaranteeing risk-free and permit-free operation.
  • Its availability in most parts of the world enables regional value creation and makes long transportation routes unnecessary.
Structural steel round bars

A modular system for individual requirements

Thanks to its modular concept TESCORE is individually scalable. Factors to take into account during the design process include existing energy consumption, the required temperature level, and the possibilities for sourcing renewable power locally or on-site.

Illustration of the modular design of the TESCORE thermal energy storage system
Aerial view of an industrial plant with a logistic center

Integration into existing facilities

TESCORE can be integrated into existing plants to replace fossil fuels. Existing heating or cooling systems can be retained to cover peak demand and serve as a backup system.

Solarpark mit Windrädern im Hintergrund

TESCORE can cut energy costs and shield the customer from rising energy and carbon prices. This brownfield compatibility also keeps the costs of switching low. This brownfield compatibility also keeps the costs of switching low.

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