EPC pilot project © Donja Stubica
Krapina-Zagorje County

Project Stakeholder

Krapina-Zagorje County

EPC in Elementary school Donja Stubica – Croatia

Facility and Initial Situation


The school building with an overall net floor area of 28,187 m² has indented shape with two heated floors (ground and first floor) and an unheated attic, while building extension makes one floor above which is a flat impassable roof. The part of the building is the school sports hall.

Initial Situation

The school was built in 1953. In 1990 and 2011, the building was upgraded and in 2012 reconstruction with the thermal insulation of the outer shell (exterior doors, facades, ceiling on the unheated attic) and installation of gas boiler for central heating was conducted.

Goals and Measures

Goals of building owner

  • Installation of energy efficient lighting system
  • Lower energy costs
  • Improvement of working conditions for teachers and pupils


  • Installation of inner efficient lighting


Installation of energy efficiency measures

2016 – 2017

Duration of the contract

14 years


44,196 €

Energy costs (Baseline)

5,256 €

Guaranteed savings in Euro

1,523 €/a

Guaranteed savings in %

  28 %

Reduction of CO2 emissions

3,9 t/a

Innovations and Client’s Advantages

  • Implementation of energy efficient lighting
  • The elementary school Donja Stubica reduces 3,9 tons of CO2 emissions annually
  • The building owner will enjoy lower energy costs and improved quality of work and residence for the teachers and pupils

Picture: © Donja Stubica

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