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Helsinki is one of the leading cities in the fight against climate change, with the goal of becoming carbon neutral by 2035. The heating system is at the heart of the battle, as its emissions account for more than half of Helsinki''s total emissions. The City of Helsinki arranged the year-long international Helsinki Energy Challenge to find future-proof solutions to heat the city during decades to come. The results of the competition have now been announced.
An international jury has selected four winners from the ten finalists in the Helsinki Energy Challenge.
HIVE, a flexible plan, based on proven technologies and solutions, such as seawater heat pumps, electrical boilers, solar thermal fields and demand side management measures; the plan is capable of integrating new technologies if and when these emerge.
Beyondfossils, an energy transition model based on open and technology neutral clean heating auctions, paving up the path to carbon neutral Helsinki in a flexible and innovation enabling way.
SmartSalt City, a solution that melds a novel thermochemical energy storage and artificial intelligence with commercially available energy technologies.
Helsinki''sHot Heart, a flexible system made of 10 floating reservoirs filled with 10 million cubic metres of hot seawater that can receive different energy sources as input. Four of the cylindrical tanks that make up Helsinki''s Hot Heart would be enclosed with inflatable roof structures to create a new leisure attraction.
The awarded proposals illustrate the diversity of the challenge and the diversity of approaches necessary to achieve a flexible and resilient system. The awarded teams have significant international competence.
The Helsinki Energy Challenge showed that emissions-neutral heating can be reached through many different kinds of solutions.
The finalist solutions emphasised that the heating system of the future must be resilient and acknowledge upcoming technologies, but that we should not stop to wait for them. The optimization of energy production and consumption is another priority in the future heating system. Many of the Helsinki Energy Challenge proposals included also steps towards a two-way district heating network and models with several heat producers.
Incorporating electric heating technologies to the heating system was a common theme for many solutions. Carbon-free electricity is easier to produce than carbon-free heat, and therefore, electric heating technologies, such as heat pumps play an important role in several solutions.
The competition showed that the heating system of the future is made up of several partial solutions and actors, which have been optimised to work together. A system of this kind challenges the traditional approach. In the future model, there are many actors and the integration of interests requires deliberation of the thoughts and operating models.
"The Helsinki Energy Challenge made it clear that the heating challenge is not ultimately just a technological challenge. Some of the proposals took on the challenge by means of business models and other operating models, while trying to tackle the question of how the heating market should function in order for it to be the best possible for both the climate and the citizens. Here, too, the city can play a big role and strive to make its heating system as flexible as possible, so that we do not rule out technologies of the future or new players, but on the contrary, allow innovation and new entrants. The discussions towards this direction and concerning the next steps have already started", says Mayor Vapaavuori.
Through the Helsinki Energy Challenge, Helsinki was offered as a testbed where future-proof heating solutions can be created. The competition''s international popularity surprised the organisers.
"We addressed a significant question with the challenge competition model and it generated thinking and discussions, both within the city and outside it, which may not have occurred otherwise. That is an extremely important achievement as such. The competition inspired multidisciplinary teams from all around the world to participate. Several teams have carried on with the collaborations and this will likely multiply the benefits of the competition. The discussions in the different phases of the competition showed that there was a demand for our approach. The energy revolution and the fight against climate change require innovative and exceptional ways of finding solutions", says Project Director of the Helsinki Energy Challenge Laura Uuttu-Deschryvere.
The competition attracted 252 proposals from 35 countries. All ten finalist proposals can be downloaded from the Helsinki Energy Challenge website. A database will also be completed on the site in the coming weeks, where all the proposals of the first stage of the competition that have given permission to share their work will be distributed.
In addition to the four award winning proposals, the City of Helsinki grants a recognition award to the team "CHP Consumers to Heat Producers" for an eye-opening description of the diversity of the heating challenge and relevant stakeholders.
Storengy (France): Philippe Aubry Newheat (France): Julien MetgeENGIE (France and Belgium): Romain Donat, Sandrine Bosso, Valentin Gavan, Jean-Baptiste Débonnaire, Albin Popot PlanEnergi (Denmark): Daniel TrierAEE Intec (Austria): Ingo LeusbrockSavosolar (Finland): Laurène MejeanMedia enquiries: Yousra Martel,yousra.martel ( at ) engie
VTT Technical Research Centre of Finland: Åsa Hedman, Tomi J. Lindroos The Finnish Environment Institute (SYKE): Karoliina Auvinen, Hannu Savolainen, Hansel: Pasi Tainio Aleksi LumijärviMediaenquiries: Åsa Hedman, VTT, asa.hedman ( at ) vtt , tel.+358 40570 3798
SaltX Technology (Sweden): Corey Blackman, Eric Jacobson, Magnus Ekblad, Lars Croon, Michele Pressiani, Pankaj Gujarathi, Carl-Johan Linér, Nadia Amirpour, Boo Ljungdahl Rebase Energy (Sweden): Ilias Dimoulkas, Sebastian Haglund, Mihai ChiruMedia enquiries: Eric Jacobson, eric.jacobson ( at ) saltxtechnology and hello ( at ) saltxtechnology , tel. +46 73 643 16 94
Carlo Ratti Associati (Italy): Carlo Ratti, James Schrader, Alberto Benetti, Chenyu Xu, Stephanie Lee, Rui Guan Ramboll (Finland): Jouni Laukkanen, Mika Kovanen, Kreetta Manninen Transsolar (Germany): Thomas Auer, Monika Schulz, Alice Chevrier, Helmut Meyer Danfoss / Leanheat (Finland): Jukka Aho, Juho Nermes, Lauri Leppa, Oddgeir Gudmundsson Schneider Electric (Finland): Jan Mattsson, Jani Vahvanen OP (Finland): Kaisa Ahtiainen Schlaich Bergermann Partner (Germany): Mike Schlaich, Boris Reyher Squint/Opera (Great Britain): Alice Britton, Manu Sainz, Tom Law, Kelly Woodward, Svenja Schlossarek Media enquiries: pr ( at ) carloratti , tel. +39 011 1969 4270
Helsinki Energy Designers (Finland): Perttu Lahtinen, Minna Näsman, Ossi PorriMedia enquiries: Minna Näsman, Helsinki Energy Designers, minna ( at ) helsinkienergydesigners ,tel. +358 40 6873125
Set up your business in Finland and enter the European market through the Nordics.
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