Introduction

RegionFastigheter has closed an EPC deal with ESCO TAC Energy Solution that guarantee energy savings worth 1.1 M€ per year.

Objectives and target audience

The main target for the project is to carry out energy savings in three hospital buildings, managed by RegionFastigheter.

1. Firstly, the ESCO will perform an energy analysis to determine the estimation energy saving of the building.

2. The analysis led to that of the ESCO could guarantee energy savings worth 1,1 M€ per year.

3. Within the project RegionFastigheter, that an investment of  8 M€ in measures and 4 M€ in maintenance is viable.

4. The agreement between RegionFastigheter and TAC continues for 7 years.

Financial Resources and Partners involved

All of the investments were produced by RegionFastigheter.  The project cost was approximately  12 M€ in total.  One possibility when using an EPC model to calculate the  energy savings was for it also calculate the investments needed.  Unfortunately, this was not the case.

Process

Undertaken actions were:-

Ventilation:-
-    The recycling of the ventilation;
-    The merging of the ventilation systems;
-    The installation of direct driven fans;
-    The installation of frequency control system for fans;
-    The adjustment of air flows;
-    The adjustment of air recycling flows.

Heat:-
-    New dimensioning and exchange of heat exchangers;
-    New dimensioning and exchange of primary valves;
-    Tuning of heat system;
-    The adjustment of radiators.

Building and automation control systems:-
-    The installation of attendance and CO2 sensors;
-    Frequency control of fans and pumps;
-    The change of valves.

Lighting:-
-    The installation of control systems.

Results

The results are as follows:-

-    19 964 MWh save of heat energy;
-    4 099 MWh save of electricity;
-    55 974 m3 save of water.

The amount of energy saved equated to approximately 1.1 M€ per year.

Critical Success Factors / Challenges

Success factors which are important for the operation of a good ESCO are:-

-    To fulfil the work commitment and ensure that all the deliverables outlined within the contract are met;
-    Can function with colleagues and external related clients professionally and can work in a supportive and confident manner;
-    To have the ability to react quickly if any problems occur during the installation phase.

Important requirements for the buyer are that:-
-    The buyer has good set of energy statistics which relate to their buildings;
-    The buyer has suitable information in relation to their energy tariffs;
-    Has relevant information about the buildings;
-    Has relevant information about technical installations.