September 21–23, 2027 in Leipzig, Germany. efa:ON is a trade fair for electrical, building and lighting technology, aimed at trades, industry, energy suppliers, planners and building operators.
Visit organizer websiteefa:ON 2027 is a trade fair for electrical, building and lighting technology, taking place in Leipzig from 21 to 23 September 2027. Topics include building technology, lighting solutions, building energy, power engineering, power and heating networks, and measuring and testing in electrical engineering. The exhibition is organised into theme worlds on buildings, energy, networks and digitalisation and is accompanied by a technical programme.
The fair is aimed at visitors from the trades, industry, commerce and energy supply as well as wholesalers, architects, engineers, building operators and investors. In 2025 it counted 180 exhibitors and 7,620 visitors. The organiser is Leipziger Messe GmbH. efa:ON was founded in 1990 and takes place every two years.
Via the A 9, A 14 and A 38, exit A14 Leipzig Messegelände. Address for navigation: Messe-Allee 1, 04356 Leipzig.
S-Bahn S2, S5; Tram 16. Stop: Leipzig Messe / Messegelände.
Nearest airport: Leipzig/Halle (LEJ), approx. 10 km straight-line distance from the venue; approx. 10 min according to the organiser.
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Ticket prices are not available here. Please contact the organizer.
efa:ON 2027 takes place from 21 to 23 September 2027 at Leipziger Messe, Messe-Allee 1, 04356 Leipzig.
In 2025, the exhibition space of efa:ON covered 6,505 m².
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