The carbon neutral block in the City of Helsinki is shifting to implementation phase. When completed, it will serve as a national and international model for sustainable construction.
Helsinki low-carbon block shifts to implementation
Winner for the international design competition on a carbon neutral block in the City of Helsinki has been selected, and the block is shifting to implementation phase. When completed, it will serve as a national and international model for sustainable construction.
Recognizing the need and opportunity to improve sustainable building practices, Sitra, the Finnish Innovation Fund, in collaboration with the City of Helsinki, launched a sustainable development design competition in March 2009.
The main goal of the competition was to attract and identify the best teams to design a large building complex on a reclaimed harbour at the western edge of Helsinki’s central business district.
The Low2No competition was designed to seek approaches for four central objectives applied at the scale of a city block:
*low or no carbon emissions;
*high architectural, spatial and social value;
*sustainable materials and methods.
The five international teams, selected out of 74 applicants to take part in the competition last May, have delivered their competition proposals during the summer.
At the beginning of September, an international jury selected the proposal of team ARUP – Sauerbruch Hutton – Experientia – Galley Eco Capital called c_life – City as living factory of ecology the winner.
|“In their proposal, the multinational team leveraged a particularly promising consumer and behavioural framework to empower citizens in meeting the goal of sustainability,” says Marco Steinberg, Director of Strategic Design at Sitra and chairman of the competition jury.
“In addition, the team presented an innovative funding model for developing the block into the first carbon neutral district in Finland.”
All teams to co-operate for systematic change
The jury was unanimous in its selection of the winner, but all proposals brought up important viewpoints for sustainable development.
The proposals suggest, for instance, use of extensive indicators for sustainability, and the utilization of solar power and heat, as well as wind energy. Most proposals would also connect the competition block into the district heating grid.
The jury found particularly insightful proposals:
*material efficiency, in particular the use of wooden structures, as a carbon sink strategy;
*citizen-centric solutions ranging from real-time carbon footprint information to onsite food production;
*water focused solutions ranging from onsite storm-water management to minimized water consumption;
*city densification to reduce carbon footprint and stricter city-limits to reduce sprawl.
“All proposals identified opportunities not only for the block, but for the City of Helsinki and Finland. Sitra and its partners aim to continue cooperation with all five teams in order to facilitate this systemic change,” Steinberg says.
More than a demonstration project
“We aim to prove that national and international sustainability targets can be reached cost-effectively through high quality architectural solutions that are robust and reproduceable”, says Marco Steinberg.
Realizing the plans starts
|Sitra’s competition has given valuable material for future practices within the City of Helsinki, which will be encouraging new site owners to similar low-energy building, states Deputy Mayor Hannu Penttilä.
"We possess unique capabilities and know-how, which make our city the world leader in co-generation and energy efficiency, for instance."
In Helsinki, district heat, district cooling and electricity are produced on a large scale in a single process. The solutions have gained reputation from several international organizations - from United Nations to International Energy agency.
"Based on this background, we aim to achieve the main goals - such as high energy efficiency and low-carbon or zero emissions - as constructing the new block," Penttilä says.
|“The competition also validates my impression of the importance of city planning in improving sustainability and energy efficient," says Jukka Noponen, Executive Director of Sitra’s Energy Programme.
“We are very pleased at the competition results and will immediately continue the negotiations for realizing these plans,” says Noponen.
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