High Grammar School „Filip Višnjić“ Bijeljina

High Grammar School „Filip Višnjić“ Bijeljina

The intended use of the facility is a public educational institution – high grammar school.

The facility is of permanent type, solid construction, with number of storeys LF+GF+1, covering net floor area of 2,442.00 m2.

The main part of the building in which the classrooms and administrative part are situated was built in 1978 and it was extended in 2003 and 2006 by additional classrooms that form a single physical and functional unit.

The total number of users on annual level is 909.

Before implementation of energy efficient measures, average indoor temperature in the facility was around 17.5°C, whereas after performed retrofits, indoor temperature has reached the projected 20°C.

The following energy efficiency measures have been implemented within the facility of High Grammar School “Filip Višnjić”:

Implemented energy efficiency measures

  • external walls thermal insulation
  • replacement of external windows and doors
  •  thermal insulation of attic structure and flat roof of the facility
  • replacement of roof cover
  • lighting system renewal
  • heating system retrofitting (installation of new biomass boiler – pellet-fuelled, installation of thermostatic valves, heat pumps and other)


  • reduction of energy consumption
  • reduction of CO2 emissions
  • reduction of energy overhead costs
  • increase of comfort indoors
  • raising awareness on importance of energy efficiency

The total energy savings expected on annual level are around 60%.