Envi Con Engineering GmbH


Reference: COGEN Power Plant Plovdiv

CCPP - Combined-Cycle Power Plant with Combined Heat and Power

Characteristic Data:

Power output: 50 MWel
Efficiency rate: 91%
Thermal output: 21-56 MWth district heat
Fuel: natural gas
510 °C / 80 bar

Trial run:

  • Dec. 31, 2012; subsequent commissioning

Description of site:

Plovdiv, Bulgaria; site of EVN’s existing legacy plant

Project description:

  • EVN Bulgaria erected a new combined-cycle power plant  at their Plovdiv site for the supply of the district heating network for the city of Plovdiv
  • Erection of the plant was awarded to Siemens as EPC contractor
  • Existing power plant was replaced during nine months with parallel operation of the old and new cogeneration plant
  • New plant was the first of its kind in Bulgaria
  • Approval process as well as the technical connection to the legacy plant, originally built during the socialist period, proved to be particular challenges

Scope of services:

  • Conceptual engineering
  • Permit engineering
  • Preparation of the EPC tendering documents
  • Construction supervision during erection phase
  • Project management and consulting during the permitting



Rainer Teichgräber

Rainer Teichgräber

Sales Director

Phone: +49 911 48089-143
Fax: +49 911 48089-129


EVN Bulgaria Toplofikatsia EAD
Vassil Levski Str. 236
4003 Plovdiv, Bulgaria

Construction period

from 2009  to 2012

Main Service

- General engineering
- Architectural engineering
- Owner’s engineering
- Consulting