Case Study – Trigeneration Investment in Nis, Serbia, Better Energy DH System

Many of the solutions discussed here have been initiated by Chemonics on the USAID-funded Serbia Better Energy Activity that began in 2021 and is focused on heating for multi-family apartments and municipal buildings, including new large heat pumps.

Boiler House Klinik Center in Nis, Ukraine
Boiler House Klinic Center was the largest source of pollution in Nis before connection to DH network. Image supplied by USAID’s Serbia Better Energy Activity.
  • Gradska Toplana J.P. Nis supplies heat to about 60,000 people, including public facilities such as University Clinic Center (UCC) and Sports Center „Cair“ (SCC).
  • Historically, the boiler at UCC was the largest source of pollution in Nis (due to use of heavy fuel oil).
  • USAID’s Serbia Better Energy team conducted a prefeasibility analysis which confirmed the financial and environmental benefits of a “Trigeneration” project. The system would include two gas engines of 1.15 MW in the UCC boiler house, 2 heat pumps (2 x 1 MWth) in the mechanical rooms of UCC and SCC, and balance of plant (BOP) equipment.
  • The investment of $7.8 million produces simple payback of 5-7 years and an IRR of 12-14% through savings in gas and revenues from sale of electricity, heating, and cooling.

Banner image caption: The oldest heat power station in Kyiv, which generates heat and electricity for the central part of Kyiv city. Adobe Stock.

Posts on the blog represent the views of the authors and do not necessarily represent the views of Chemonics.