Tuesday, February 28, 2017 - 14:08

Residential quarter as an innovative source of renewable energy

Asuntosäätiö, Fira Oy, the VVO Group and Helen Ltd have joined forces in the planning of a diverse residential block in Kalasatama in Helsinki with an objective of taking housing quality and energy efficiency to a whole new level of standards. In the so-called SunZEB plus energy model, the excess heating load of the sun on the buildings, which has been problematic in the current construction methods, is turned into an opportunity where buildings are used as a source of renewable energy.  The construction of the first houses will start in 2018.

In the new concept, large window surfaces bring the light and heat of the sun indoors in an optimal way in the summer and winter. In the summer, the energy of the sun and other waste energies are recovered and the excess heat is utilised with the district cooling system in Helsinki’s district heating network. In the winter season, the rays of the sun coming at a low angle heat the rooms and bring plenty of natural light into the homes also in the greyest days of the year. The solution provides an opportunity for a high comfort of living in all seasons.

The block to be part of the city-level energy solution

– Housing plays a key role in climate change mitigation. We must rapidly move from building-specific energy-saving solutions to regional, resource-wise and increasingly energy-efficient concepts. Therefore, we find that the implementation of this pilot project in the block concept is an extremely important step forward, says Development Manager Jouni Kivirinne of Helen Ltd.

In Helen’s SunZEB model, the energy flow in the consumption and production of energy is examined at a broader level than in an individual building. Regionally, the use of primary energy and the CO2 emissions will be considerably lower than in solutions where the thermal and cooling energy is produced and consumed individually at each location. That way, the use of local renewable energy will increase and the emissions will decrease.

The housing block structure in Sompasaari in the district of Kalasatama is a perfect choice for SunZEB construction. Technically, the application of the model will not automatically require a regional overall solution, but it can also be implemented one site and building at a time.

The contractors Asuntosäätiö, Fira Ltd and the VVO Group will each build their own properties in the same block.

Comfort of living with solar architecture

In the design of dwellings, the SunZEB model enables the use of large window surfaces without compromising on a pleasant indoor environment. The new way of utilising solar architecture in the block will make the most of the fantastic sea and park views. Residents will be able to enjoy the light and the views to the full.

Further information about VTT’s SunZeb study

Kalasatama on the City of Helsinki website

 

Smart energy solutions of the future are tested at Kalasatama. A sustainable, low-energy energy system with services will be created by combining the latest energy, information and communications technologies. By 2040, the district will have 25,000 residents and 10,000 jobs.

SunZeb = Sun ZeroEnergyBuilding

Wednesday, April 26, 2017 - 09:22

Children of Laajasalo to have a new day care centre

The southeastern early-education district of Helsinki will have more space for the needs of day care and early education. A new day care centre to replace Day Care Centre Yliskylä being built at Köökarinpolku 1 will provide day care to 232 children a bit more than a year from now.

Monday, April 24, 2017 - 08:08

Tram network expanded and renovated in summer

Helsinki tram routes will be expanded and older tracks renovated during the summer and autumn of 2017 for the needs of a new tram network to be launched in August. Track work will proceed at about 20 sites.

The new tram network will have 2.8 kilometres of new tracks. The main track work sites will be located on the streets of Välimerenkatu and Reijolankatu.

Thursday, April 13, 2017 - 12:34

Helsinki residents’ sense of security has not weakened

Helsinki residents’ sense of security in everyday life has not deteriorated. This is a general conclusion of the latest Helsinki Safety Survey, the responses to which were collected at the turn of the year 2015-16. Perceived security in people’s own neighbourhoods and in central Inner Helsinki rose steadily in the years 2003-2012. Since then, the situation has not changed. Yet there are large differences between Helsinki districts in terms of perceived unsafety, particularly during weekend evenings.

Monday, April 10, 2017 - 07:46

Brochure on Helsinki’s new city plan

The new city plan of Helsinki is presented in a newly published brochure in a concise manner. The Helsinki City Plan brochure explains to readers the key concepts and solutions of the city plan, such as increasing density, the expansion of the inner city to “city boulevards” and the development of the rail network for public transport in Helsinki.