KSJ

Municipal Service Provider

Kommunaler Dienstleister Jena (KSJ) is a modern service provider operating in the municipal and commercial sectors. On behalf of the City of Jena, we handle waste management, the collection of fees and charges, street cleaning, street lighting, street planning, street administration, street monitoring, street maintenance, land management, monitoring of traffic infrastructure, and winter road maintenance.
Meeting our customers’ needs and ensuring their satisfaction with our services are our top priorities. Please let us know how we can assist you!

 

Management

Uwe Feige serves as plant manager. Katrin Höckrich is the deputy plant manager. Jan Wosnitzka heads the Municipal Services division, Christopher Helbig heads the Civil Engineering and Urban Space division, and Katrin Höckrich heads the Central Services division.

We employ approximately 440 workers and 20 apprentices.

The company’s annual revenue is approximately 32 million €, of which 10 million is generated by the Waste Management division.



 

Logo of the KSJ

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Acting in an environmentally friendly and sustainable manner

Establishing a sustainable energy supply for a complex organization—this is the challenge KSJ has taken on.
Wood chips are produced from landscape maintenance material (deadwood) generated during our daily work. With these 3,500 srm of wood chips per year, we generate heat and hot water for our facilities. The sun also plays a role in this process. Our solar thermal systems convert sunlight into heat, while our photovoltaic systems generate electricity. Using smart charging management, we power our electric vehicles and thereby make another important contribution to climate protection.

Solar Thermal System on Vehicle Hangar

  • with 2,700 vacuum tubes and 90 collector arrays
  • with a capacity of 270 kW over 600 m²

This allows a 55,000-liter buffer tank for heating and hot water to be charged independently from May through September.

Solar PV systems at the solar park and the recycling center

  • with 8,432 solar modules and 107 inverters
  • Output: approx. 1,600 MWh of electricity generated in 2022

This is enough to power approximately 460 four-person households for one year, resulting in a reduction of 776 metric tons of CO₂.

In addition, the municipal services department is exploring other potential sites for on-site electricity generation, with the goal of making a significant contribution to resource conservation.