A mid-tunnel ventilation shaft on the London Underground and a UK Power Network electricity substation were identified as sources of waste heat that could be used to supply heat to Islington Council’s Bunhill Heat and Power heat network. As part of the CELSIUS project, Islington investigated how these sources of waste heat could be captured and integrated into the network.
The city of Rotterdam participated in the CELSIUS project with a focus on two interventions: development of an energy system in the vertical city of De Rotterdam and the creation of a heat hub aiming to increase the effectiveness of the waste heat transportation network.
The city of Brescia in northern Italy is part of the PITAGORAS project, which aims to develop highly replicable, cost-effective and high energy-efficient large-scale energy generation systems that will allow the sustainable urban planning of very-low-energy city districts. The project’s concept for waste heat recovery system is demonstrated in a real-scale pilot plant.
A complete retrofit based on facade improvements, ICT and renewable energy systems is being implemented in the Cuatro de Marzo district, the demo site chosen for the R2CITIES project in Valladolid.
Soma (Turkey) has a population of about 90,000 people and can be found in the Manisa province, Western Turkey. The town has grown around the lignite mining industry and the lignite-fired thermal power plant in the city. The Soma demo site district comprises 7,037 m2 of conditioned area. Buildings were mainly heated by coal-based heating systems, where old-fashioned stoves heat the dwellings. The buildings were built in 1982 and the retrofitting took place between 2014 and 2018
Two different retrofitting strategies were implemented:
The city of Amsterdam has over 850,000 residents from 180 different countries, who own more than 600,000 bicycles. The wider Amsterdam Metropolitan Area has close to 2.5 million inhabitants. The city has a strong commitment to encourage green research, development and investment in sustainable initiatives. As a result, the area is enjoying a rapid uptake of electric transportation and a growing number of companies are developing sustainable products that influence global business. Amsterdam is exceptionally well connected, both physically and digitally.
Aarhus is the second biggest city in Denmark with 300 000 inhabitants. With the aim to become carbon neutral by 2030, the city moves forward with its climate and smart city strategy with a number of sustainable actions and projects, amongst which is READY.
Växjö municipality, together with its inhabitants, businesses, organisations and university, are all working towards a better environment and a smaller carbon footprint. The city has high ambitions to make itself sustainable, energy-efficient, fossil fuel-free and with a large proportion of wooden buildings.
The city of Innsbruck in Austria (120 000 inhabitants) defined its 2025 Energy Plan back in 2009. In this context, and as part of the SINFONIA project, the city has selected its eastern district to demonstrate the large-scale implementation of energy-efficient measures, with the objective of achieving on average 40 % to 50 % primary energy savings in the demo sites, and to increase by at least 30 % the share of renewables in the district’s energy mix.
