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

Friday, March 24, 2017 - 08:54

Design concepts selected for Merihaka and Hakaniemi bridges

Preliminary design concepts have been selected for bridges to be built in Merihaka and Hakaniemi. The concepts will serve as a basis for further bridge design and engineering.

The design concept selected for the Merihaka bridge (see rendering above) will produce a lightweight, pier-like structure that doesn’t block the view from Kalasatama to Pohjoisranta owing to its low elevation. This was considered a merit in terms of the overall cityscape.

Thursday, March 16, 2017 - 13:52

The City of Helsinki Financial Statements 2016: Economy stabilising

"The year 2016 in the economy of the City of Helsinki was more positive than expected. The operating margin of the City was better than the budgeted figure and the tax revenue grew more than expected. Thus, the annual contribution margin was €300 million better than the budgeted target”, says Mayor Jussi Pajunen of the City of Helsinki Financial Statements 2016.

Friday, March 10, 2017 - 08:35

Waste is collected through underground pipes in Kruunuvuorenranta

The new Kruunuvuorenranta district under construction in eastern Helsinki commissioned a pipeline-based automated waste collection system named Rode on 6 March 2017. Each housing company has its own waste collection station, and waste is sucked from these stations through underground pipes to a central collection station. Waste is moved in the pipes by pressure differences.

Thursday, March 9, 2017 - 12:16

The Port of Helsinki has significant positive economy and employment-related effects

According to a recent survey, the Port of Helsinki has significant positive effects on the regional economy and employment rates in the municipalities in and around the Helsinki region. The total value of the business operations related to the Port of Helsinki in 2015 was 1.6 billion euros, and the operations employed approximately 15,000 people. In addition to the regional level, the effects practically span throughout the country.