Introduction

Old city infrastructure, apparently useless, can be transformed and used to deliver efficient and sustainable energy. In the case of the City of Turku, an old unused gas storage which serves now as district heating battery.

Objectives and target audience

Its main objective is to store heated water for the district heating system during low consumption periods which can later be used during consumption peaks. As a result, this initiative uses the produced heat in a more efficient way saving 2000 tonnes of oil annually.

Financial Resources and Partners involved

Please give an overview of the budget, and an outline of the funders.
Which organisations were involved in shaping and delivering the project.
Turku Energy’s total costs were 3 000 000 Euros, it was own investment.  There were no other partners involved.

Process

Results

As a result, 20 GWh of oil usage for energy production can be replaced by the heat battery which means a saving of approximately 2000 tonnes of oil.
By converting the old gas storage in a modern district heating battery, it has been possible to save and renovate a historically valuable building which otherwise would have been destroyed as in that moment it was very deteriorated and badly contaminated by toxic matters.

Critical Success Factors / Challenges