The energy statistics of the Norwegian building network

Panel: Panel 2. Making buildings more energy efficient

Author:
Ingunn Ettestøl, Enova SF

Abstract

The Norwegian building networks was established in 1996. The goal of the program has been to promote rational use of energy within the tertiary building sector in Norway. From 1996 until 2003 owners of the buildings which participated in the network have yearly reported primary energy use and other relevant data for monitoring, benchmarking and evaluation of energy use in the buildings which participates in the network. The statistics contains data about the buildings, like the size of heated area, technical installations, activity data and structural data.

The energy statistics of the Norwegian building network for 2003 contains data from 1 535 approved buildings. These buildings have in total a heated area equal to 8.4 million square meters and a total energy use of 2.3 TWh. The buildings consist then of about 6.3 percent of the total energy use in the tertiary building sector in Norway.

In this paper we present the main findings in the energy statistics from 2003. The paper presents stationary energy use in the buildings as the total delivered energy to the buildings per year. The energy use will include these types of end uses: Heating, ventilation, hot water, lighting, energy used in machinery and other equipment. The total delivered energy is not corrected for the efficiency of the various installations in the buildings. The changes in energy use from year to year in the period is described and explained by climate variations, changes in use, changes in heating system, activity data and the age of the buildings. The Norwegian building network database contains unique information about energy use in the tertiary building sector in Norway.