Introduction of individual heat substations in the connected buildings and rehabilitation of inner building heating systems

Location: Zhukova area in Kamianets-Podilskyi
Programme: DemoUkrainaDH
Project status: Completed
Investment: 812,000 EUR
Payback period: 4.7 years
Reduced gas consumption: 462,000 m³/year


850 tonnes/year

Video about the project in Kamianets-Podіlskyi

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Kamianets-Podilskyi is a famous tourist destination city in Khmelnitsky Oblast in the western part of Ukraine. It has a population of 103,000 inhabitants.

The district heating utility in Kamianets-Podilskyi is a municipal public enterprise “MiskTeploVodEnerhiya”. It operates both central water and heat infrastructure in the city. The utility operates nine boiler houses including one Combined Heat and Power station with total installed thermal capacity of 260 Gcal/h. The heating networks consist of 73 km of pipelines for heating and hot water distribution. The three main district heating networks cover more than 90% of the connected load: CHP on 43 Franko street (48%), the boiler house at 123 Timiriazeva street (15%) and the Zukhova boiler house (29%).

Kamianets-Podilskyi Demonstration Project – overview

District heating generation at the Zhukova boiler house is based on gas. The distribution of district heating from the boiler house to the consumers occurs mainly via the pipe system to the central heating substations (CHS) where domestic hot water is produced. From the CHSs there are pipe systems for distribution of heat and DHW. The project is based in the DH Company’s conviction that the most effective way to improve the overall efficiency of the system is to convert the system from a production driven system to a demand driven system by the introduction of Individual Heat Substations (IHS) in each building connected to the district heating network. The demonstration project was the first step in this development.

The aim of the demonstration project is to identify where the distribution of heat and DHW is most inefficient and in these buildings install IHSs and disconnect them from the pipe system. By the introduction of IHSs, step by step the inefficient CHSs and the pipe systems connected to them can be eliminated in the long term and the conversion to a demand driven system can be finally implemented.

Kamianets-Podilskyi Demonstration Project – details

The area selected for the demonstration project is the Zhukova boiler house area. This area is one of the most densely populated areas in the city.

Specifics of the Kamianets-Podilskyi project include:

  1. Individual Heat Substations – introduction of 29 IHSs with brazed heat exchangers, downsized control valves and heat meters at residential and public buildings supplied from the boiler house at Zhukova street.
  2. Rehabilitation of inner building heating systems, mainly balancing of heating and renovation of hot tap water systems.
  3. Installation of a new frequency-controlled network distribution pump for variable flow at the boiler house at Zhukova street.

The proposed investment is EUR 812,000 with a simple pay-back time of 4.7 years. The proposed financing plan is as follows:

  • Total loan – EUR 390,000 (48%)
  • Total grant – EUR 300,000 (37%)
  • Total Kamyanets-Podilsky local contribution – EUR 122,000 (15%)

The project benefits the local community by:

  • Saving 4,212 MWh heat per year (30% saving from the baseline*)
  • Saving 462,000 m³ gas per year (30% saving from the baseline*)
  • Saving 200 MWh electricity per year (40% saving from the baseline*)
  • Saving 850 tonnes CO2 per year (30% saving from the baseline*)

*Baseline is estimated for the networks in question only (not the entirety of the district heating in Kamyanets-Podilsky) for the case of no-project activity.

The project in Kamianets-Podilskyi demonstrates best practices in technical design and project implementation. For the district heating company, it was the first experience with installation of IHSs and the start of a development to install IHSs in all the buildings of the city. As a result of the project, a significant proportion of the heating system has been converted to a demand driven system. The pipe system was replaced and provided with equipment for controlling the heat supply according to the real heat demand. For customers the indoor climate improved and the quality of tap water preparation in each building increased significantly. The district heating company conducted an awareness campaign to improve the customers’ understanding of the new system and to inform them about the way in which their individual behaviour influences energy consumption (e.g. use of hot water, control over overheated parts of buildings).

As a result of competitive procurement, the following suppliers were selected:

  • Individual Heating Substations – LLC “Energy Equipment Plant DAN”, Ukraine
  • Pump Equipment – LLC “Energy Saving Technologies”, Ukraine
  • Assembly Works – “Kalyna-IF” LLC, Ukraine
  • Construction Works – “Kalyna-IF” LLC, Ukraine

Current status

The project was completed in autumn 2016. All goods were procured, installed and successfully commissioned.


Photo credit: city administration