Member - T & T Multieléctrica

The company T&T has developed a unique solution for the sustainable energy supply of buildings, powered by the sun.

Type Startup or self-employed
Founded 1992
Company Size 25
Member Type
Founders Augusto da Teixeira
Headquarters 3670-058, Portugal
Social network
T & T Multieléctrica


T&T is an innovative company that was founded to contribute to the creation of a more sustainable future and take responsibility for future generations by delivering a universal energy solution for buildings of any use, from residential buildings to swimming pools or other buildings with commercial use. The Portuguese company mainly produces and installs a new disruptive technology of solar thermal systems. In collaboration with the University of Aveiro, T&T has developed a unique technology, Senergy Force, which solves common problems of conventional solar thermal systems. The connection between modules is made columns, which allows creating a chimney effect, that passively dissipates excess heat. This provides a natural cooling effect in the summer, which allows for the installation of several columns of panels, which in turn allows producing a sufficient amount of energy for the winter. This solution can be combined with other conventional solutions and possibly with a geothermal passive component. This can contribute to excellent indoor air quality and ventilation. Furthermore, it uses the physical process of warm air rising down and hot air rising to create a natural and comfortable room temperature without the need for energy. The cold air that rises downwards is discharged from the building through geothermal pipelines, while warm air enters through the solar system. This cycle can also be used in reverse, like an air conditioner in the summer, as the heated air exits the building and cool air enters through the geothermal pipelines. Depending on the region, the solution can save up to 90% of the energy needed for space heating, air conditioning, hot domestic water, ventilation, and even pool water heating.
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Headquarters 3670-058, Portugal

SDG’s of application

The Sustainable Development Goals are a call to action to end poverty, protect the planet and ensure peace and prosperity everywhere.
Clean water and sanitation
SDG 6 icon
Affordable and clean energy
SDG 7 icon
Industry, innovation and infrastructure
SDG 9 icon
SDG 11
Sustainable cities and communities
SDG 11 icon
SDG 12
Responsible consumption and production
SDG 12 icon

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. To validate the Membership to the World Alliance for Efficient Solutions, the Solar Impulse Foundation only verifies that each entity is registered and has signed our principles and values stated in the following World Alliance for Efficient Solutions charter. For those Members who are also solution providers, this information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances.