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Adaptable and adaptive RES envelope solutions to maximise energy harvesting and optimize EU building and district load matching

Periodic Reporting for period 2 - EnergyMatching (Adaptable and adaptive RES envelope solutions to maximise energy harvesting and optimize EU building and district load matching)

Reporting period: 2019-04-01 to 2020-09-30

EnergyMatching aims at maximizing the RES (Renewable Energy Sources) harvesting in the built environment by developing and demonstrating robust solutions to efficiently capture the on-site available renewable sources through adaptive active building skin technologies and to effectively use the locally produced energy within the building and district concept, in the framework of an overall EnergyMatching energy and business vision. The EnergyMatching concept is based on three pillars: (i) Overall methodological framework and business vision, (ii) robust active skin technologies to efficiently capture the local RES, (iii) building and district energy hub to effectively use on site the produced energy through load matching strategies.
EnergyMatching focuses on the renovation of EU residential buildings, which is a sector that holds a huge potential to meet the EU policy goals related to NZEB (nearly zero energy buildings) and buildings integrated RES. EU policy is boosting the reduction of the EU building stock energy demand by 80% by 2050 through renovation and, in particular, the residential sector holds the biggest potential representing the most of the built floor surface area among all EU building stock typologies.
The main objectives of EnergyMatching are:
- Definition of adaptive and adaptable envelope solutions for energy harvesting at building level
- Integration of the energy harvesting solutions into the building and district energy concept
- Geoclusterisation of solutions and replication potential
These objectives will be achieved through seven identified exploitable results leading to measurable impacts in line with EU targets. The expected results include: versatile click&go substructure for different cladding systems (result R3), solar window package (result R4), modular appealing BIPV envelope solutions (result R5), RES harvesting package to heat and ventilate (result R6). Such solutions are integrated into energy efficient building concepts for self-consumers connected in a local area energy network (energyLAN). The energyLAN is designed to fullfil comprehensive economic rationales, including balancing cost and performance targets, through the energy harvesting business enhancer platform (result R1), which handles different stakeholders benefits, risks and overall cash flows, and it will be exploited to develop specific business models. Operational strategies of the energyLAN are driven by the building and districrt energy harvesting management system (result R7). EnergyMatching optimisation tool (R2) enables the best matching between local RES-based energy production and building load profiles, and simplifies the energy demand management for the energy distributors.
The EnergyMatching solutions will be demonstrated in three demo cases, which have a large replication potential in terms of climatic conditions, law and regulation framework, type of ownership, buildings’ architectural features and social-cultural environment. The three demo cases are located in Italy, France and Sweden.
In order to progress towards the definition of adaptive and adaptable envelope solutions for energy harvesting at building level, several developments have been undertaken, including: the solar window block, the BIPV click-&-go system, the transpired solar thermal collector. These envelope solutions maximize exploitation of local available solar energy thanks to design support by the developed EnergyMatching tool that also guarantee matching loads profile by local renewable energy production as well as the interaction with the external environment positively influencing the building energy performance and the indoor comfort. These features of the EnergyMatching tool have been demonstrated in the design of the three demos.
In order to progress towards the integration of the energy harvesting solutions into the building and district energy concept, several main energy concepts have been developed for local use of harvested renewable energy including heating, ventilation and electricity generation energy concepts based on load match aggregation strategies and energy harvesting management systems.
The optimization tool algorithm, indeed, was improved integrating a more complex battery model and a gamma distribution function and used to identify the optimal configurations of PV systems to install in the tree demo-cases.
Finally, in order to progress towards geoclusterisation of solutions and replication potential, tools and strategies are being developed, ensuring applicability and optimal use of solutions in different contexts, tailoring and adjusting the EnergyMatching solutions and evaluating both technical and economic viability. In particular, the EnergyMatching tool that which has been integrated in the public Energy Matching Platform, will support eternal users to find the best EnergyMatching configuration given different geometries and contexts. The implementation of some of the EM solutions in the case studies started in July the three demo cases are very promising in terms of replicability potential.
As stated above, buildings are more than just stand-alone units taking energy from the grid. They are becoming active elements of the energy network consuming, producing, storing and supplying energy, thus transforming the EU energy market towards a decentralised, renewable, interconnected and variable system. Anyway, today the connection among buildings, their energy system and the grid is still disaggregated offering a lot of potential for improvements to optimize their interactions. EnergyMatching will contribute to overcome these issues by achieving a higher level of integration between these different systems/resources and by getting lower LCOE, higher operational benefits, improved active envelope aesthetics and maximizing the local RES exploitation through the whole envelope considering both opaque and transparent parts. Also systems of today are tailored to meet specific requirements such as improving self-consumption of PV electricity, reducing energy consumption, maximizing energy production or reducing installation cost. Very few solutions have tried to target all different benefits because of a lack of a system approach – this is the groundbreaking approach used in this concept.
Each one of the seven results developed in the project present high innovation potential and is being developed to progress beyond the state of the art.
Main expected potential impacts of EnergyMatching include:
- Reduced cost of manufacturing, installation and operation of energy harvesting technologies at building and district scale
- Demonstrated replicability that will result in the acceleration of the integration of RES into EU diversified residential buildings and districts
- Cost-effective solutions supported by advanced economic and business models for investors
- Maximisation of RES generation, demand coverage and optimal integration of RES with the energy grids
- Market penetration of effective, modular, robust and easy to integrate energy harvesting solutions
- Revitalization of the EU construction / energy harvesting sectors and reduction of GHG emissions
- Improved IEQ with optimal control and natural sources exploitation
Schema of main results that are under development in Energy Matching project