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Electrical Engineering

Haltia’s facilities can be adapted for a variety of uses, and the same adaptability has been the goal in the electrical engineering solutions. Electricity consumption is curbed by the geothermal heating system that significantly reduces the amount of electricity needed for heating and cooling.

The future goal is that Haltia will be as self-sufficient as possible in its energy needs, thanks to geothermal heat and solar energy. Renewable energy is burchased for the need to complement Haltia’s energy consumption with electricity from the mains.

Smart Lighting Adjusts Itself

Lighting and exhibition technology consume most of the electricity needed by Haltia. The building is designed in such a way that the natural light coming in through the windows can be used as much as possible in the lobby and restaurant areas, for example. In contrast, natural light is prevented from getting into the exhibition rooms to keep the power requirements for exhibition lighting as low as possible. Haltia’s outdoor lighting has been implemented with LED lights.

The energy consumption for Haltia’s indoor lighting is being reduced by motion detection and presence detection. Motion detection is used in spaces like auxiliary areas, toilets and corridors. When there is no movement in the corridors, lighting drops to about 10 per cent of the normal level, i.e. to dimmed lighting, to be taken back to usual levels as needed. It is not beneficial to switch fluorescent lamps off completely as the constant on/off motion shortens their life. The rest level thus reduces electricity consumption and keeps the lamps going for longer.

The lighting at staff desks is controlled by presence detection, which is more accurate than motion detection and even recognises the movement of fingers on a computer keyboard.

Haltia’s exhibition spaces have been set up with energy-saving equipment. Centralised, remote-controlled monitoring technology makes it possible to control all of the exhibition equipment and switch it off when not in use.

Recovering Lift Energy

Haltia has one lift that serves the whole building. The lift’s braking energy is recovered and used immediately where energy is needed. With the recovered energy from Haltia’s lift, you could run three loads of laundry per day all year round.

Sunlight from the Socket

In the future, with some further developments in technology, the aim is to equip Haltia with solar panels that can generate solar energy to be converted into mains electricity. The solar panels will increase the rate of energy self-sufficiency at Haltia.

Standby Generator Keeps Haltia Running in Case of Power Outage

Haltia is built of wood, therefore the functioning of its fire protection system is secured for power outages with a backup system. A standby generator running on diesel oil ensures that the fire protection system works in case of a fire.

The standby generator is not useless at other times either, as it can be used for feeding electric current into the building’s network during so-called normal power outages, that is, when it’s not a fire. Haltia thus continues to operate almost as usual during power outages: after a 15-second delay, the standby generator starts to run the lighting, exhibition technology and other functions at Haltia at almost 100 per cent.