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Interenergo is an international Ljubljana-based energy company and one of the largest of its kind in Slovenia. Since 2009, we have been part of the Austrian Kelag Group. Our main activities include electricity trading, construction and management of energy facilities running on renewable energy sources (RES) and energy services. With our affiliated companies, we form the Interenergo Group.

Our goal is to develop projects and solutions that create added value for our partners and the market. We are always active and follow developments in the market, responding to it and integrating trends into our business model. In everything we do, we always take account of our responsibility to the environment, which is at the core of our group’s sustainable orientation.

Interenergo in Figures

Number of employees
Electricity production
Annual CO2 emissions savings
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Part of International Environment

We trade electricity in the wholesale market in 17 countries and at 14 international exchanges. We invest in electricity production from renewable energy sources in six European countries. In Slovenia, which is our domestic market, we do not only trade with electricity and invest into renewable energy sources, but also provide energy services.

We do not stop here. We are planning further expansion into new markets that are in line with our goals and a sustainable future for all.


The Group comprises professionally trained and highly motivated professionals from different fields. Knowledgeable and skilful individuals with professional competence  these are qualities that distinguish our employees who contribute to Interenergo’s business excellence. In turn, Interenergo offers them a working environment that encourages and rewards their great enthusiasm and dedication.