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BRESAER Report Summary

Project ID: 637186
Funded under: H2020-EU.

Periodic Reporting for period 1 - BRESAER (Breakthrough solutions for adaptable envelopes for building refurbishment)

Reporting period: 2015-02-01 to 2016-07-31

Summary of the context and overall objectives of the project

The current building stock of the EU has an enormous potential for improvement of the energy efficiency and the application of renewable energy sources (RES) so that the transformation of that building stock into energy efficient buildings is a must in order to contribute to the objective established in the European 2020 Strategy (20% reduction of greenhouse gas emissions, 20% energy savings and a 20% share of renewables).
The European construction industry sector must increase its technological competence and competitiveness, particularly aiming at producing solutions that require less energy. The construction industry, however, has the particularity that it cannot experiment widely with new technologies unless they have been proven and there are guarantees they will perform better than traditional ones in the long term. BRESAER has the potential to solve this gap for innovation by using a combination of known and novel technologies, having potential for success when applied in building refurbishment projects.
The buildings’ envelope is the key element to address in order to significantly increase the energy efficiency and the use of RES in the building sector. BRESAER aims to turn the building envelope into an active element rather than a passive, meeting more functions than just the separation of the outer space from the interior with insulation.
The use of RES in the building sector has been traditionally dominated by their application in new buildings. Hence, integrated retrofitting concepts must be developed to harvest the potential in the existing stock of both residential and non-residential buildings.
BRESAER project overall objective is to design, develop and demonstrate an innovative, cost-effective, adaptable and industrialized envelope system for buildings refurbishment including combined active and passive pre-fabricated solutions integrated in a versatile lightweight structural mesh. The whole building will be governed by an innovative Building Energy Management System covering a specific control system for governing the envelope, the energy use of the building and the strategies for the electrical energy storage. The system implementation will reduce drastically the primary energy and the Greenhouse emissions while improving indoor environment quality (IEQ).
A real demonstration will be performed in an education building in Turkey. Four additional virtual demonstrations will be done in occupied real building in other countries of Europe. The selected buildings will cover different European climate zones and assorted building types, constructed before the EPBD requirements were enacted, guarantying its replication potential.

Work performed from the beginning of the project to the end of the period covered by the report and main results achieved so far

The during the first period of the project the basis and initial development of BRESAER system and project were set, from the management, RTD, exploitation and communication point of view. The main objective was to achieve an advanced design of the system’s scope and concept, components integration, exploitation and dissemination strategy towards its future inclusion in the market. This advanced design will be optimized, demonstrated and assessed during next periods. The main results obtained so far are:
-Definition of the conceptual design of the system, including: the context and limits of use to meet architectural, energy and European relevant Directives and Regulations; methodology of technology combinations and estimation of potential energy savings in representative European cities; and examination of economic factors relevant for the system under different scenarios; first draft of the system design guide and computer tool for aiding design.
-Design of the new envelope technologies and substructure components, their integration to achieve an adaptable and multifunctional system, its conditions and performances, as well as a provisional cost estimation. Three prototypes are under construction at the moment to validate its correct implementation.
-Definition of the Building Energy Management System (BEMS) as an ICT solution for managing energy sources by means of integration of the energy systems and monitoring networks, that monitors and controls the building's mechanical and electrical equipment, integrating predictor tools.
-Performance measurement and verification protocol definition, features setting and Key Indicators selection to establish the procedures by which the validation of the energy savings will be achieved. The monitoring system was implemented and data of the real demonstration building is being collected.
-Standardization technical committees in CEN and ISO, and their standards have been identified to facilitate BRESAER solutions market uptake by integrating them with existing and ongoing standards.
-Project outcomes have been identified and their potential has been investigated to provide a preliminary exploitation plan, in line with the recommendations for optimal IPR protection through: Market analysis and preliminary competition analysis; SWOT analysis; Functional analysis; and Risk analysis.
-The Dissemination Plan to define the strategy to share project outcomes with key stakeholders and professional audiences has been designed and initially deployed. The dissemination targets have been identified with the creation of a stakeholders database.

Progress beyond the state of the art and expected potential impact (including the socio-economic impact and the wider societal implications of the project so far)

Traditional building refurbishment practices use tailored designs for each case, which has limited prefabricated systems application, leading to the impossibility to replicate successful cases and to update components. RES are poorly integrated and polluting on-site energy sources are used. Non-industrialized constructions systems generate higher waste, dust and noise on-site and longer timescale of works on- site causes disruptions to dwellers. Payback periods are not considered
BRESAER’s ambition is overcome the today’s prefabrication main drawbacks. During the first period of the project important progresses have been carried out in the System’s design towards achieving this goal: to bring customization to industrialized and modular systems providing greater flexibility which respond to particular weather conditions and architectural requirements; to fully integrate RES and BEMS to the new resilient building envelope; to easier assembly and disassembly to lower maintenance costs and possible technological update, and to minimize skilled labour needs and on-site phase time; to lower the transportation costs by designing a modular system with lightweight components; to prioritize system energy efficiency and cost effectiveness; to develop a competitive business model and dissemination plan to attract potential end users.
BRESAER system delivered advanced design support the following impacts that will be fully evaluated after the completion of the demonstration actions:
-Energy demand reduction for space heating and cooling 30,7% due to envelope refurbishment
-Contribution of renewable energy (solar thermal) for space conditioning of 37,3% after the retrofitting.
-Contribution of renewable energy (solar PV) for electricity of 12,8% after the retrofitting
-The combination gives a total primary energy consumption reduction of 76,4%
-Improved indoor environment quality by improving thermal, acoustics, illumination comfort and IAQ .
-Provide solutions with a pay-back time below 7 years
-Validation and market uptake of active building elements

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