Abstract
The urban growth is estimated to reach up the 66 % by 2050 and consequently the need of resources within the cities will increase significantly. This, combined with the 40 % of energy consumption and 36 % of CO2 emissions of the building sector, makes necessary to accelerate the transition towards more sustainable cities. The CITyFiED project contributes to this transition, aiming to develop an innovative and holistic methodological approach for energy-efficient district renovation and deliver three large scale demonstration cases in the cities of Lund (Sweden), Laguna de Duero (Spain) and Soma (Turkey). CITyFiED methodology consists of several phases that ease the decision-making tasks towards the district renovation, considering the energy efficiency as the main pillar and local authorities as clients. For the case of Torrelago district (Spain) the intervention consists of a set of energy conservative measures including the façade retrofitting of 143.025 m2 of living space in 31 twelve-storey buildings; the renovation of the district heating network with a new biomass thermal plant; the integration of renewable energy sources, including a micro-cogeneration system, and the installation of individual smart meters. After the renovation action, one-year monitoring campaign is ongoing. The CITyFiED monitoring platform will collect information from the energy systems and deliver environmental, technical, economic and social key performance indicators by March 2019. At the end of the project the achievement of the predefined goals will be verified: up to 36 % of energy saving and 3,429 tons-CO2/yr emissions saving covering the 59,4 % of the energy consumption with renewable sources
Highlights
The CITyFiED project CITyFiED is a project based on a mix of demonstration, renewable energy technologies and sound business models towards the sustainable development of cities
This study focuses on the demonstration case located in Laguna de Duero, i.e. the Torrelago
It is composed of 7 phases to facilitate the decision-making process, which contribute to an effective dialogue among all the stakeholders, aiming to understand the objectives and needs of the city to deliver a customized Strategy for Sustainable Urban Renovation
Summary
The CITyFiED project CITyFiED is a project based on a mix of demonstration, renewable energy technologies and sound business models towards the sustainable development of cities. A methodology based on a KPI-driven approach for urban renovation at district level is delivered by the project [1], with the energy efficiency as main pillar and the local authorities as clients It is composed of 7 phases to facilitate the decision-making process, which contribute to an effective dialogue among all the stakeholders, aiming to understand the objectives and needs of the city to deliver a customized Strategy for Sustainable Urban Renovation. All of the main economic and technological aspects in terms of building retrofitting, district heating system upgrade, integration of renewable energy sources and monitoring have been addressed by means of a systemic approach in order to achieve significant energy savings and very low CO2 emissions and remarkable improvements in the residents’ comfort conditions. Such simulations have contributed to optimize the system, develop new control strategies and other improvements resulting in a better and most efficient system
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