Poltava is the administrative centre of the Poltava Oblast as well as the surrounding Poltava Raion in the central Ukraine. The total area of the city is 103 km2 and the population is approximately 300,000 people. The total housing stock of the city consists of more than 21,000 buildings, of which the absolute majority belongs to the private sector.
About 98% of consumers living in multi-storey residential buildings are connected to district heating systems. The district heating of Poltava is provided by two operators: the municipal company RMHSE “PoltavaTeploEnergo” and JSC “Poltava Turbomechanical Plant”. PoltavaTeploEnergo is the largest heat supplier providing heat and domestic hot water to the major part of existing heat consumers. RMHSE “Poltavateploenergo” operates 95 boiler houses with total installed heat capacity 888 Gcal/h and a total district heating network length of 220 km.
Poltava I Demonstration Project – overview
The project concerns the reconstruction of the boiler house at 48 Frunze street and the district heating network connected to the boiler house.
The project is interesting from a demonstration point of view as it contains demonstration of a flexible piping system, suitable to be used in narrow areas and areas with other infrastructure in order to minimise the groundwork.
A solution with automatic gas boilers and a full conversion to delivery according to customer demand is the preferred solution. Although there are no plans to construct more buildings in the neighbourhood, thus it is unlikely that connection to the main district heating system would be feasible in the foreseeable future, piping network and IHS will be designed, so they can be connected to a main district heating system in any moment.
Poltava I Demonstration Project – details
The project area includes a boiler house supplying heat and hot water to ten, mainly residential, buildings but also a children’s hospital and a school.
Specifics of the Poltava I project include:
- Individual Heat Substations – Introduction of 11 IHSs for demand-driven heat supply to customers in all buildings connected to the boiler house.
- Network replacement – Reduce losses in the heat distribution system by replacing all district heating pipelines in the area.
- Replacement of the old boilers with new efficient condensing boilers with capacity to adapt the heat production to the heat demand.
The investment is EUR 591,000 with a simple payback time of 7.3 years. The financing plan is as follows:
- Total loan – EUR 235,000 (40%)
- Total grant – EUR 235,000 (40%)
- Total Poltava I local contribution – EUR 121,000 (20%)
The project benefits the local community by:
- Saving 2,060 MWh heat per year (32% saving from the baseline*)
- Saving 220,000 m³ gas per year (30% saving from the baseline*)
- Saving 14 MWh electricity per year (20% saving from the baseline*)
- Saving 415 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 Poltava I) for the case of no-project activity.
The project Poltava I demonstrates best practices in technical design, procurement and project implementation in a small-scale project. For the city of Poltava, the installation of IHSs is a new application of district heating technology. The IHS configuration used in this project is substantially simpler and more cost-effective than the configuration normally used in Ukraine and its installation demonstrates a complete conversion to a demand-driven system. The replacement of old district heating pipelines is done with flexible type pipelines to demonstrate efficient pipe laying in narrow areas. Customers of the district heating company, residing in the buildings with the new IHSs, are benefiting from improved supply of domestic hot water and improved indoor climate.
As a result of competitive procurement, the following suppliers were selected:
- Boiler house rehabilitation – Production and Commercial Enterprise “Kotlogaz”, Ukraine
- Flexible district heating pipelines – LLC “POLYMERTEPLO-UKRAINE”, Ukraine
- Individual Heating Substations – Brunata OOD, Bulgaria
The project was completed in autumn 2015. All goods were procured, installed and successfully commissioned.
Photo credit: Kvoka