Flexible Future

Granlund (Finland): Jussi-Pekka Kuivala – Andreas Lund – Herkko Lehdonvirta – Sami Sihvonen – Ville Reinikainen
Wapice (Finland): Jyrki Keskinen – Tommy Löwendahl – Toni Mattila


The Flexible Future proposal is based on effective utilization of existing energy infrastructures in the city of Helsinki, in particular the thermal networks, added with advanced modern energy solutions. The decarbonization plan of Flexible Future strongly relies on proven energy efficiency measures, heat storages, heat pumps, and clean heat production technologies. The Flexible Future solution results in significantly lower emissions in heat production and minimized biomass use. 

Flexible Future pays attention to integration of the solutions to provide an optimal outcome. Therefore, advanced ICT-solutions are employed, such as a Virtual Battery Platform balancing the heat consumption demands with the heat production including the effects of decentralized heat sources.

Flexible Future considers three different types of areas in the city: 

In the city center, the district cooling network provides not only chilled water, but also recovers the surplus heat and feeds it to the district heat network for use in the other parts of the network. In the Flexible Future solution, the district heat network is turned into a more active role, serving both prosumers feeding heat into the network and consumers using the heat.

In the outskirts of the city, which are not easily served by the central plants, necessitating high delivery temperature of heat in the winter, the proposed solutions are harnessing local waste heat and complementing existing peak boiler plants with heat pumps for base load generation or constructing new heating centers in the ‘peripheric’ parts of the network. In this way, delivery temperatures could be lowered, and network losses reduced.

The future trend may be low-temperature energy communities, which would be mostly self-sufficient through their own heating solutions but would still be connected to the main district heating network of Helsinki, providing backup services and take-up of surplus heat.

The key technologies in Flexible Future solution, proven energy efficiency measures, heat storages and heat pumps, are expandable and scalable to other cities as well.

Flexible Future: The full competition entry  PDF

Media contact:

Riikka Linna, Communications Manager, Granlund, tel.+358 50 345 2328, riikka.linna ( at ) granlund.fi

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