Roughly 60% of global primary energy consumption is lost as waste heat. This represents a huge energy recovery potential: Transforming waste heat into useful energy could contribute to a smaller carbon footprint – and at the same time reduce the cost of useful energy.
Thermoelectric materials are a class of advanced materials producing electricity directly from heat. TEGMA develops and manufactures thermoelectric materials, functional elements and modules for high temperature thermoelectric generators
Thermoelectric systems allow direct conversion of heat energy into electricity. Thermoelectric generators are compact solid state devices with no moving parts. They are silent, reliable, and scalable, making them ideal for distributed power generation and in applications where no maintenance need is crucial.
Thermoelectric power generation requires high efficiency thermoelectric materials, a reliable technology for integration of these into thermoelectric modules, and a system that interface with the heat source. TEGma has developed technology for all these areas:
- Elements: Skutterudite Thermoelectric elements with high figure of merits and high quality metallization
- Modules: Reliable bonding technology and high-throughput automated module production processes
- Integration: Thermal interface materials and solutions to fix the thermoelectric device to the heat sources
Thermoelectric generators may be utilized in a variety of markets with large amounts of waste heat, including:
Reduced CO2 emissions
A TEG system can reduce the CO2 emission of a car by 3 – 6 %, which sums up to 200-400 kg per car per year.
TEGma is developing thermoelectric elements and modules suitable for integration in the exhaust systems of both personal cars and trucks.
Reduced fuel consumption
A medium sized TEG can reduce the diesel consumption from an average cargo-ship by 200 metric tons per year.
TEGma is currently developing and testing a state of the art TEG for diesel hybrid ships.
Increased energy efficiency
Massive amounts of energy is lost as waste heat through e.g. hot reactor walls, off-gases and cooling water. The utilization of TEG technology to recover some of this energy will have a great impact on the total energy efficiency.TEGma is currently developing and testing TEG systems with partners to recover waste heat from the process industry.
Battery-free wireless sensors
A small TEG system (2 x 2 x 1 cm3) can solely power an autonomous wireless sensor network, e.g. a wireless engine monitoring system on a jet engine.
TEGma is in the process of developing a unique TEG system which can act as a “battery” for wireless sensor networks.
TEGma will become the leading supplier of mid to high temperature thermoelectric materials and modules
TEGMA is established in a market characterized by a strong need for high temperature thermoelectric materials and components. TEGma is presently moving from laboratory to pilot production and prototype testing, approaching the first pre-industrial series production of thermoelectric generators. Our ambition is a rapid commercialization of the technology to meet the market needs.
Cooperation with leading research institutes and universities provides access to relevant competence and technology. Joint development with customers and suppliers ensures a process suitable for large-scale industrialization, and applications that address key customer needs.
Thermoelectric modules are solid-state devices with many similarities with photovoltaic solar technology, both on the process and product side. TEGma is thus benefiting from the extensive photovoltaic experience and know-how in the Scatec group, the owner of TEGma.
Scatec is Alf Bjørseth’s company for developing new business ideas within the areas of renewable energy and environmentally friendly advanced materials.
Go to Scatec’s website