Luciano De Tommasi | Tyndall National Institute (original) (raw)

Papers by Luciano De Tommasi

Research Square (Research Square), Dec 5, 2023

Across Europe, buildings account for 40% of energy consumption and 36% of carbon emissions. It is... more Across Europe, buildings account for 40% of energy consumption and 36% of carbon emissions. It is estimated that 75% of buildings in the European Union (EU) are ine cient, yet only 1% of buildings are renovated each year [1]. As part of the EU H2020 funded SmartSPIN (Smart Energy Services to solve the split incentive problem in the commercial rented sector) project, a novel business model to support

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 2007

Purpose-The paper aims to present an overview of techniques for the identification in the frequen... more Purpose-The paper aims to present an overview of techniques for the identification in the frequency domain of reduced order models for distributed passive electromagnetic structures. Design/methodology/approach-Most known approaches proposed in different application contexts are described within a unified framework. Findings-A passive reduced order model of an unshielded twisted pair is fully developed with the combination of vector fitting algorithm and the passivity enforcement via Hamiltonian perturbation. Originality/value-A state-of-the-art picture of the frequency domain identification and passivity enforcement techniques is given, and a test case of actual interest fully analysed.

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Open Research Europe, 2024

In this paper, we perform a comparative analysis of business models used by Energy Service Compan... more In this paper, we perform a comparative analysis of business models used by Energy Service Companies (ESCOs), suitable for the deployment of energy efficiency measures in the commercial rented sector across Europe. These models can effectively contribute to solving the split-incentive issue that arises in the rented building scenario. Some of them are obtained from their "traditional" counterparts, which do not consider the rented scenario, but just a bipartite agreement between an Energy Service Company and its client. The EU Horizon 2020 project SmartSPIN (Smart energy services to solve the SPlit INcentive problem in the commercial rented sector) targets delivery of enhanced energy services for commercial rented sector. These enhanced energy services (a) combine demand management services and energy efficiency interventions, (b) facilitate the adoption of renewables, (c) optimize the balance between demand and supply, (d) alleviate the split incentive issue. The pilot implementation of SmartSPIN is in progress in a business park in Greece, in an office building in Ireland and in two shopping centers in Spain. Key recommendations toward the implementation of such a smart energy service are provided in this paper. They have been obtained from a detailed analysis of ten interviews of key stakeholders of the energy efficiency sector and of the commercial rented sector, along with an analysis of a selection of the most relevant technical literature. This paper argues that the classical shared savings and guaranteed savings ESCOs models may be adapted to the commercial rented sector and used at SmartSPIN's demonstration sites in Spain, Greece and Ireland. The guaranteed savings model appears to be the Open Peer Review Approval Status

International Journal of Numerical Modelling-electronic Networks Devices and Fields, Sep 15, 2017

We deal with the problem of identifying the parameters of an equivalent lumped RC multiport netwo... more We deal with the problem of identifying the parameters of an equivalent lumped RC multiport network from time domain tabulated data of a corresponding distributed real eigenvalues problem, as obtained from either measurements or accurate simulation tools. A novel step response matrix identification procedure is proposed, based on the combination of an outer nonlinear least squares iteration for the relocation of time constants, and an inner convex programming cycle for the identification of the corresponding residue matrix terms, able to guarantee a priori the passivity property of the equivalent RC network. The structure of the algorithm and its principal functions connections are shown, and the mathematical features of the proposed formulation of the identification problem are accurately described and commented. Moreover, the possibility of getting direct synthesis of a Foster generalized concretely passive multiport, as a consequence of the optimal identification of a passive real eigenvalues model from data, is discussed. Since the technique is well suited (although not limited) to the reduced analysis of typical electro‐thermal problems, a set of significant case studies in this area is considered. In this way the algorithm present implementation is validated, also comparing it to previous well assessed methods, evidencing its large potential and value.

Energy Positive Neighborhoods and Smart Energy Districts, 2017

Abstract This section describes the results of the different optimization processes implemented i... more Abstract This section describes the results of the different optimization processes implemented in terms of energy savings and demonstrates the viability and feasibility of the COOPERaTE platform in two test sites. Indeed, COOPERaTE is not only a theoretical project: it was decided to illustrate the proposed COOPERaTE energy management approaches and services through two test sites: the Bishopstown site in Ireland and the Challenger site in France. After exposing the methodology and use cases, a description and an evaluation of the KPIs is completed. This evaluation enables to compare the baseline and the reporting period; and enhance the real savings and impact on the two neighborhoods and potentially the impact on energy positive neighborhoods through the demonstration of the main four use-cases.

Energy Positive Neighborhoods and Smart Energy Districts, 2017

Abstract In this chapter different schemas for energy optimization in Neighborhoods are presented... more Abstract In this chapter different schemas for energy optimization in Neighborhoods are presented in detail and a Modelica-based library is used to represent the dynamics of Neighborhood Energy Systems and their interactions. The scalability of the library allows to efficiently simulate city districts.

Energies

Ireland’s Climate Action Plan 2021 has set out ambitious targets for decarbonization across the e... more Ireland’s Climate Action Plan 2021 has set out ambitious targets for decarbonization across the energy, transport, heating and agriculture sectors. The Climate Action Plan followed the Climate Act 2021, which committed Ireland to a legally binding target of net-zero greenhouse gas emissions no later than 2050, and a reduction of 51% by 2030. Green hydrogen is recognized as one of the most promising technologies for enabling the decarbonization targets of economies across the globe, but significant challenges remain to its large-scale adoption. This research systematically investigates the barriers and opportunities to establishing a green hydrogen economy by 2050 in Ireland, by means of an analysis of the policies supporting the optimal development of an overall green hydrogen eco-system, in the context of other decarbonizing technologies, including green hydrogen production using renewable generation, distribution and delivery, and final consumption. The outcome of this analysis is...

Energy Efficiency

This paper analyses challenges and opportunities for improving energy efficiency in small and med... more This paper analyses challenges and opportunities for improving energy efficiency in small and medium enterprises (SMEs) by reviewing research design and results out of seven European projects: SPEEDIER, SMEmPower Efficiency, E2Driver, Innoveas, Triple-A, DEESME and ICCEE. These projects aim to improve SMEs’ awareness of energy efficiency and support an effective decision-making-oriented approach to it. Drivers and barriers to energy efficiency improvements in European SMEs of various industrial sectors have been investigated by means of surveys, focused group discussions and interviews. A meta-analysis of the results of the seven EU projects was carried out to discover trends related to energy efficiency in European SMEs; this was supported by the use of a unifying analytic framework that enabled merging and cross-validation of the findings of the seven projects. The analysis indicated, by means of new data collected by the seven projects, that staff training, facilitation of energy...

Intern. Symp. on Electromagnetic Compatibility, 2005

IOP Conference Series: Earth and Environmental Science, 2019

Designing energy retrofitting actions poses an elevated number of problems, as the definition of ... more Designing energy retrofitting actions poses an elevated number of problems, as the definition of the baseline, selection of indicators to measure performance, modelling, setting objectives, etc. This is time-consuming and it can result in a number of inaccuracies, leading to inadequate decisions. While these problems are present at building level, they are multiplied at district level, where there are complex interactions to analyse, simulate and improve. OptEEmAL proposes a solution as a decision-support tool for the design of energy retrofitting projects at district level. Based on specific input data (IFC(s), CityGML, etc.), the platform will automatically simulate the baseline scenario and launch an optimisation process where a series of Energy Conservation Measures (ECMs) will be applied to this scenario. Its performance will be evaluated through a holistic set of indicators to obtain the best combination of ECMs that complies with user’s objectives. A great reduction in time a...

Open Research Europe

In this paper, we perform a comparative analysis of business models used by Energy Service Compan... more In this paper, we perform a comparative analysis of business models used by Energy Service Companies (ESCOs), suitable for the deployment of energy efficiency measures in the commercial rented sector across Europe. These models can effectively contribute to solving the split-incentive issue that arises in the rented building scenario. Some of them are obtained from their “traditional” counterparts, which do not consider the rented scenario, but just a bipartite agreement between an Energy Service Company and its client. The EU Horizon 2020 project SmartSPIN (Smart energy services to solve the SPlit INcentive problem in the commercial rented sector) targets delivery of enhanced energy services for commercial rented sector. These enhanced energy services (a) combine demand management services and energy efficiency interventions, (b) facilitate the adoption of renewables, (c) optimize the balance between demand and supply, (d) alleviate the split incentive issue. The pilot implementati...

Renewable and Sustainable Energy Reviews

Journal of Energy Storage

Open Research Europe

This paper introduces an enhanced energy auditing process including a ring-fencing mechanism for ... more This paper introduces an enhanced energy auditing process including a ring-fencing mechanism for the selection of energy efficiency measures considering a multi-stage planning of the energy retrofitting project. The proposed ring-fencing approach enables SMEs to overcome the barrier of lack of capital for the implementation of energy efficiency measures by implementing first no-cost measures and only after that energy savings are accumulated considering the installation of low-cost, medium-cost and finally high-cost measures. The advantages of the proposed methodology are illustrated by means of three case studies, where a variety of energy efficiency measures were first identified throughout the auditing process involving three different SMEs, then most effective measures were selected and scheduled to be implemented according to a multi-annual plan while considering budget and operational constraints. The results of the pilot studies show that the business owners have improved the...

Research Square (Research Square), Dec 5, 2023

Across Europe, buildings account for 40% of energy consumption and 36% of carbon emissions. It is... more Across Europe, buildings account for 40% of energy consumption and 36% of carbon emissions. It is estimated that 75% of buildings in the European Union (EU) are ine cient, yet only 1% of buildings are renovated each year [1]. As part of the EU H2020 funded SmartSPIN (Smart Energy Services to solve the split incentive problem in the commercial rented sector) project, a novel business model to support

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 2007

Purpose-The paper aims to present an overview of techniques for the identification in the frequen... more Purpose-The paper aims to present an overview of techniques for the identification in the frequency domain of reduced order models for distributed passive electromagnetic structures. Design/methodology/approach-Most known approaches proposed in different application contexts are described within a unified framework. Findings-A passive reduced order model of an unshielded twisted pair is fully developed with the combination of vector fitting algorithm and the passivity enforcement via Hamiltonian perturbation. Originality/value-A state-of-the-art picture of the frequency domain identification and passivity enforcement techniques is given, and a test case of actual interest fully analysed.

[

Open Research Europe, 2024

In this paper, we perform a comparative analysis of business models used by Energy Service Compan... more In this paper, we perform a comparative analysis of business models used by Energy Service Companies (ESCOs), suitable for the deployment of energy efficiency measures in the commercial rented sector across Europe. These models can effectively contribute to solving the split-incentive issue that arises in the rented building scenario. Some of them are obtained from their "traditional" counterparts, which do not consider the rented scenario, but just a bipartite agreement between an Energy Service Company and its client. The EU Horizon 2020 project SmartSPIN (Smart energy services to solve the SPlit INcentive problem in the commercial rented sector) targets delivery of enhanced energy services for commercial rented sector. These enhanced energy services (a) combine demand management services and energy efficiency interventions, (b) facilitate the adoption of renewables, (c) optimize the balance between demand and supply, (d) alleviate the split incentive issue. The pilot implementation of SmartSPIN is in progress in a business park in Greece, in an office building in Ireland and in two shopping centers in Spain. Key recommendations toward the implementation of such a smart energy service are provided in this paper. They have been obtained from a detailed analysis of ten interviews of key stakeholders of the energy efficiency sector and of the commercial rented sector, along with an analysis of a selection of the most relevant technical literature. This paper argues that the classical shared savings and guaranteed savings ESCOs models may be adapted to the commercial rented sector and used at SmartSPIN's demonstration sites in Spain, Greece and Ireland. The guaranteed savings model appears to be the Open Peer Review Approval Status

International Journal of Numerical Modelling-electronic Networks Devices and Fields, Sep 15, 2017

We deal with the problem of identifying the parameters of an equivalent lumped RC multiport netwo... more We deal with the problem of identifying the parameters of an equivalent lumped RC multiport network from time domain tabulated data of a corresponding distributed real eigenvalues problem, as obtained from either measurements or accurate simulation tools. A novel step response matrix identification procedure is proposed, based on the combination of an outer nonlinear least squares iteration for the relocation of time constants, and an inner convex programming cycle for the identification of the corresponding residue matrix terms, able to guarantee a priori the passivity property of the equivalent RC network. The structure of the algorithm and its principal functions connections are shown, and the mathematical features of the proposed formulation of the identification problem are accurately described and commented. Moreover, the possibility of getting direct synthesis of a Foster generalized concretely passive multiport, as a consequence of the optimal identification of a passive real eigenvalues model from data, is discussed. Since the technique is well suited (although not limited) to the reduced analysis of typical electro‐thermal problems, a set of significant case studies in this area is considered. In this way the algorithm present implementation is validated, also comparing it to previous well assessed methods, evidencing its large potential and value.

Energy Positive Neighborhoods and Smart Energy Districts, 2017

Abstract This section describes the results of the different optimization processes implemented i... more Abstract This section describes the results of the different optimization processes implemented in terms of energy savings and demonstrates the viability and feasibility of the COOPERaTE platform in two test sites. Indeed, COOPERaTE is not only a theoretical project: it was decided to illustrate the proposed COOPERaTE energy management approaches and services through two test sites: the Bishopstown site in Ireland and the Challenger site in France. After exposing the methodology and use cases, a description and an evaluation of the KPIs is completed. This evaluation enables to compare the baseline and the reporting period; and enhance the real savings and impact on the two neighborhoods and potentially the impact on energy positive neighborhoods through the demonstration of the main four use-cases.

Energy Positive Neighborhoods and Smart Energy Districts, 2017

Abstract In this chapter different schemas for energy optimization in Neighborhoods are presented... more Abstract In this chapter different schemas for energy optimization in Neighborhoods are presented in detail and a Modelica-based library is used to represent the dynamics of Neighborhood Energy Systems and their interactions. The scalability of the library allows to efficiently simulate city districts.

Energies

Ireland’s Climate Action Plan 2021 has set out ambitious targets for decarbonization across the e... more Ireland’s Climate Action Plan 2021 has set out ambitious targets for decarbonization across the energy, transport, heating and agriculture sectors. The Climate Action Plan followed the Climate Act 2021, which committed Ireland to a legally binding target of net-zero greenhouse gas emissions no later than 2050, and a reduction of 51% by 2030. Green hydrogen is recognized as one of the most promising technologies for enabling the decarbonization targets of economies across the globe, but significant challenges remain to its large-scale adoption. This research systematically investigates the barriers and opportunities to establishing a green hydrogen economy by 2050 in Ireland, by means of an analysis of the policies supporting the optimal development of an overall green hydrogen eco-system, in the context of other decarbonizing technologies, including green hydrogen production using renewable generation, distribution and delivery, and final consumption. The outcome of this analysis is...

Energy Efficiency

This paper analyses challenges and opportunities for improving energy efficiency in small and med... more This paper analyses challenges and opportunities for improving energy efficiency in small and medium enterprises (SMEs) by reviewing research design and results out of seven European projects: SPEEDIER, SMEmPower Efficiency, E2Driver, Innoveas, Triple-A, DEESME and ICCEE. These projects aim to improve SMEs’ awareness of energy efficiency and support an effective decision-making-oriented approach to it. Drivers and barriers to energy efficiency improvements in European SMEs of various industrial sectors have been investigated by means of surveys, focused group discussions and interviews. A meta-analysis of the results of the seven EU projects was carried out to discover trends related to energy efficiency in European SMEs; this was supported by the use of a unifying analytic framework that enabled merging and cross-validation of the findings of the seven projects. The analysis indicated, by means of new data collected by the seven projects, that staff training, facilitation of energy...

Intern. Symp. on Electromagnetic Compatibility, 2005

IOP Conference Series: Earth and Environmental Science, 2019

Designing energy retrofitting actions poses an elevated number of problems, as the definition of ... more Designing energy retrofitting actions poses an elevated number of problems, as the definition of the baseline, selection of indicators to measure performance, modelling, setting objectives, etc. This is time-consuming and it can result in a number of inaccuracies, leading to inadequate decisions. While these problems are present at building level, they are multiplied at district level, where there are complex interactions to analyse, simulate and improve. OptEEmAL proposes a solution as a decision-support tool for the design of energy retrofitting projects at district level. Based on specific input data (IFC(s), CityGML, etc.), the platform will automatically simulate the baseline scenario and launch an optimisation process where a series of Energy Conservation Measures (ECMs) will be applied to this scenario. Its performance will be evaluated through a holistic set of indicators to obtain the best combination of ECMs that complies with user’s objectives. A great reduction in time a...

Open Research Europe

In this paper, we perform a comparative analysis of business models used by Energy Service Compan... more In this paper, we perform a comparative analysis of business models used by Energy Service Companies (ESCOs), suitable for the deployment of energy efficiency measures in the commercial rented sector across Europe. These models can effectively contribute to solving the split-incentive issue that arises in the rented building scenario. Some of them are obtained from their “traditional” counterparts, which do not consider the rented scenario, but just a bipartite agreement between an Energy Service Company and its client. The EU Horizon 2020 project SmartSPIN (Smart energy services to solve the SPlit INcentive problem in the commercial rented sector) targets delivery of enhanced energy services for commercial rented sector. These enhanced energy services (a) combine demand management services and energy efficiency interventions, (b) facilitate the adoption of renewables, (c) optimize the balance between demand and supply, (d) alleviate the split incentive issue. The pilot implementati...

Renewable and Sustainable Energy Reviews

Journal of Energy Storage

Open Research Europe

This paper introduces an enhanced energy auditing process including a ring-fencing mechanism for ... more This paper introduces an enhanced energy auditing process including a ring-fencing mechanism for the selection of energy efficiency measures considering a multi-stage planning of the energy retrofitting project. The proposed ring-fencing approach enables SMEs to overcome the barrier of lack of capital for the implementation of energy efficiency measures by implementing first no-cost measures and only after that energy savings are accumulated considering the installation of low-cost, medium-cost and finally high-cost measures. The advantages of the proposed methodology are illustrated by means of three case studies, where a variety of energy efficiency measures were first identified throughout the auditing process involving three different SMEs, then most effective measures were selected and scheduled to be implemented according to a multi-annual plan while considering budget and operational constraints. The results of the pilot studies show that the business owners have improved the...