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State Treasury, Helsinki (Finland)

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3-dimensional model of the State Treasury building

3-dimensional model of the State Treasury building

The implemented BuildingEQ data gathering and analysis identified some possible system malfunction and potential energy savings to avoid unnecessary energy consumption by the heating and cooling systems after recent renovation.
State Treasury, Helsinki (Finland)

Building owner
Senate Properties is a government owned enterprise under the aegis of the Finnish Ministry of Finance and is responsible for managing the Finnish state's property assets and for letting premises. Senate Properties provides services related to premises, primarily to customers which form part of the state administration. The services include leasing premises, investments, and the administration and development of the property portfolio.  As a business enterprise, Senate Properties finances its own operations and is not dependent on the state budget. The building stock comprises university, office, research, cultural and other buildings.

The building is rented and occupied by the State Treasury.

The building is a typical office building with mainly office rooms (3-7 floors). The special spaces are the 1st floor with vault spaces and the 2nd floor used as archive spaces. On the 8th floor there is a restaurant and some meeting rooms. The 9th floor consists of technical rooms.

Building concept
The building is a "box"- type building with facades facing southeast and northwest. The buildings envelope U-values are according to the building code of 1984. Windows are triple-glazed.

HVAC concept
The building is connected to Helsinki Energy district heating network and district cooling network. The type is a radiator heating with thermostatic radiator valves. There are eight air handling units with water-glycol heat recovery, heating and cooling. Space cooling using active beams. Building automation system.

General data

Owner Senate Properties
Year of erection 1984
Use Offices
Net floor area 16.200 m²
Consumption of electricity 1.220.000 kWh/a
  75 kWh/m²a
Consumption of heating 1.000.000 kWh/a
  62 kWh/m²a
HVAC equipment heating, cooling, air conditioning,
  building automation system
Energy source district heating

Acronym of the case


Lessons learnt

The savings potential was estimated roughly by separate calculations. The first results show that the realisation of these savings can be done with no or low investment costs. To confirm the causes for malfunctions in system operation and define more accurate estimate of the savings potential, further studies are needed. Results of the Building eQ project - energy saving potential in the operation of buildings 5 - 30 % - Realisation of these potentials with low or no investment costs - BuildingeQ methods and tools allow quick and costefficient detection of these potentials - Ongoing performance evaluation is prerequisite for energy efficient operation - Consortium suggests amendment of epBD with mandatory performance monitoring

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