Olav Thon Group

Olav Thon Group – green and profitable comfort. The major idea behind Thon Hotels' Energy Efficiency measures is to have energy reduction without it affecting the comfort and experience of their guests.

After the measures were implemented, they achieved a reduction rate of well over 28 %.

A total of 38 hotels participated in the programme. At current energy prices, this corresponds to a savings of NOK 12,000,000 per year. The main part of the measures consists of heat pumps monitoring and analysing the energy consumption and new control routines for technical facilities. The project has been so successful that is has also been carried out at the shopping centres in the Olav Thon Group.

In total,  AF Energi & Miljøteknikk has been a consultant and responsible for Energy Efficiency analyses and the execution of approx. 500 measures at the Olav Thon Group, with guaranteed results. The execution of various measures has encompassed the delivery of measures such as heat pumps, complete rehabilitation of heating installations, control automation, energy follow-up systems, operating instructions, etc.

Project type Energy
Timespan January 2002 - December 2012
Customer Olav Thon Group
Contract size 41 MNOK

Examples

Example 1: Thon Hotel Oslofjord - 2003
AF Energi & Miljøteknikk has installed a 180 kW heat pump connected to the kitchen unit's reclamation system, where the heat is used for preheating of tap water.. In addition, we have installed a central operating control system. In total, the energy consumption at he hotel was reduced from 5.1 GWh to 3.7 GWh.

 

Example 2: Sandvika Shopping Mall - 2004
We have set up a 300 kW heat pump, which is connected between the building's heating system and ice water system – that are used as preheaters and precoolers respectively. The heat pump's COP was 7.0 and the energy was reduced from 14.1 GWh to 10.0 GWh.

 

Example 3: Thon Hotel Opera - 2005
The hotel had a 300 kW heat pump installed, which is connected to the glycol reclamation unit of the ventilation systems in order to improve the degree of reclamation from the exhaust air. The energy consumption was reduced by more then 30 percent.

AF Gruppen

AF Gruppen is one of Norway's leading contactor and industry group, covering a wide range of services.

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