Energy Efficiency

Energetika Ljubljana adds waste heat from Lek to district heating network

Energetika Ljubljana waste heat Lek district heating

Photo: Lek


July 16, 2020






July 16, 2020





Slovenian pharmaceutical company Lek, part of Novartis, supplies the local utility with excess heat from its production to use it for district heating. Energetika Ljubljana said the project reduces CO2 emissions by 1,000 tons per year on saved fuel.

The capital city of Slovenia is benefiting from a new circular economy project. Energetika Ljubljana is taking the surplus steam condensate from the manufacturing process in Lek and using it in its district heating system.

The amount of energy is enough to heat 300 homes or supply them with sanitary hot water and the local utility said enough water is saved to fill more than 20 Olympic-size pools. The project with pharmaceutical producer Lek, part of Novartis’s Sandoz subsidiary, was started in mid-March and the trial was completed successfully.

The condensate recovery system started regular operation after a successful trial, which began in March

Lek proposed the idea in 2018, Energetika Ljubljana added. The contract was signed in September of last year after the analysis was conducted.

The waste heat comes from the manufacturing facility for solid and sterile products. The condensate recovery unit pumps the hot water into the district heating network. The project reduces carbon dioxide emissions by 1,000 tons per year on saved fuel, according to the announcement.

Energetika Ljubljana, which also supplies natural gas and electricity from high-efficiency cogeneration, started a smart district heating systems project with Resalta last year.

Comments (0)

Be the first one to comment on this article.

Enter Your Comment
Please wait... Please fill in the required fields. There seems to be an error, please refresh the page and try again. Your comment has been sent.

Related Articles

EU energy ministers targets renewables energy efficiency

EU energy ministers aiming at more ambitious renewables, energy efficiency targets

28 June 2022 - The Council of the EU wants to boost the renewables and energy savings targets via the Fit-for-55 package, which depends on upcoming talks

Skrekas Greece triple LNG storage renewable energy capacity

Skrekas: Greece to triple LNG storage, renewable energy capacity

27 June 2022 - Minister of Environment and Energy Kostas Skrekas said the government would mobilize over EUR 44 billion for Greece's energy sector by 2030

Austria ban gas boilers new buildings next year

Austria to ban gas boilers in new buildings in 2023

15 June 2022 - Austria is phasing out fossil fuels in heating, starting with a ban on the installation of gas boilers in new buildings from next year

MRE-GIZ-prosumers-project-june 2022

Germany’s GIZ to help Serbia make renewables available to everyone

09 June 2022 - Minister Zorana Mihajlović signed an agreement with GIZ on the Promotion of Renewable Energy and Energy Efficiency in Serbia