An Investigation on the Feasibility of Near-Zero and Positive Energy Communities in the Greek Context

Sougkakis, Vasileios; Lymperopoulos, Konstantinos; Νikolopoulos, Nikos; Margaritis, Nikolaos; Giourka, Paraskevi; Angelakoglou, Komninos

doi:10.3390/smartcities3020019

Cited by 26 publications

(31 citation statements)

References 17 publications

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“…The methodology has not been validated yet. In [12], the authors define assessment criteria for near-zero and positive energy communities. A case study for a newly constructed positive energy community and a renovation based near-zero energy community is conducted using pre-existing software (RETScreen, EnergyPLAN).…”

Section: Positive Energy District Analysis In Literaturementioning

confidence: 99%

A Critical Perspective on Positive Energy Districts in Climatically Favoured Regions: An Open-Source Modelling Approach Disclosing Implications and Possibilities

2021

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Urban areas have been responsible for the majority of the European Union (EU)-wide primary energy demand and CO2 emissions. To address this issue, the European Union introduced the concept of Positive Energy Districts (PEDs). PEDs are required to have an annual positive primary energy balance. However, if directly addressed in the literature, this energy balance only includes annually fixed primary energy factors and often neglects grid impacts. To bridge this gap, this work proposes a mathematical optimisation approach for PEDs, working towards an open-source model. The model’s main novelty is an hourly primary energy balance constraint. The performed case study on the island La Palma for both an urban and a rural neighbourhood show that the PED concept has a higher net present value (NPV) than solely buying electricity from the grid in all feasible cases. Depending on the space available for PV installations, the NPV increases between 29 and 31% and 25–27% for the rural and urban PED scenarios, respectively. However, in the scenarios with reduced grid impact, the NPV decreases due to the expensive battery installations. Comparing the significantly fossil-based electricity grid mix of La Palma with the renewable-based one of El Hierro shows that the primary energy-based optimisation has more room for flexibility in the high renewable mix. While the dynamic primary energy balance constraint appears promising for operational optimisation, the allocation of correct primary energy factors is crucial.

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Section: Positive Energy District Analysis In Literaturementioning

confidence: 99%

A Critical Perspective on Positive Energy Districts in Climatically Favoured Regions: An Open-Source Modelling Approach Disclosing Implications and Possibilities

2021

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“…However, single prosumers will have to make huge efforts to follow electricity prices and do not have enough weight to be active market players. Against this background, one of the key solutions to increase the flexibility of power systems is the alliance of consumers and prosumers in local citizen energy communities, benefiting from better prices and contributing to a reduction in the forecast errors and in the balance needs [39][40][41][49][50][51]. Indeed, local CECs can be managed by a representative or by the local distribution system operator (DSO) [52].…”

Section: The Role Of Local Citizen Energy Communitiesmentioning

confidence: 99%

The Role of Local Citizen Energy Communities in the Road to Carbon-Neutral Power Systems: Outcomes from a Case Study in Portugal

Algarvio

2021

Smart Cities

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Global warming contributes to the worldwide goal of a sustainable carbon-neutral society. Currently, hydroelectric, wind and solar power plants are the most competitive renewable technologies. They are limited to the primary resource availability, but while hydroelectric power plants (HPPs) can have storage capacity but have several geographical limitations, wind and solar power plants have variable renewable energy (VRE) with stochastic profiles, requiring a substantially higher investment when equipped with battery energy storage systems. One of the most affordable solutions to compensate the stochastic behaviour of VRE is the active participation of consumers with demand response capability. Therefore, the role of citizen energy communities (CECs) can be important towards a carbon-neutral society. This work presents the economic and environmental advantages of CECs, by aggregating consumers, prosumers and VRE at the distribution level, considering microgrid trades, but also establishing bilateral agreements with large-scale VRE and HPPs, and participating in electricity markets. Results from the case-study prove the advantages of CECs and self-consumption. Currently, CECs have potential to be carbon-neutral in relation to electricity consumption and reduce consumers’ costs with its variable term until 77%. In the future, electrification may allow CECs to be fully carbon-neutral, if they increase their flexibility portfolio.

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“…However, different solutions serve different needs and generate specific values. A one-size-fits-all solution cannot meet the versatile needs of smart cities [6] and it is up to each city to define the most appropriate combination of solutions to achieve its energy transition goals and serve its needs. A respective market research, although it requires regular updating, can also support city authorities, decision-makers, and sustainability experts to identify and adopt a variety of smart city solutions.…”

Section: Market Needs and Value Proposition Of Solutions Grouped Under The 4 Ettsmentioning

confidence: 99%

The Nexus between Market Needs and Value Attributes of Smart City Solutions towards Energy Transition. An Empirical Evidence of Two European Union (EU) Smart Cities, Evora and Alkmaar

et al. 2020

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This study presents an experiential process and a market-oriented approach for realizing cities’ energy transition through smart solutions. The aim of this study is twofold: (a) present a process for defining a repository of innovative solutions that can be applied at building, district, or city level, for two European Union cities, Evora and Alkmaar, and support the deployment of positive energy districts enabling a sustainable energy transition, and (b) understand in a systematic way the attributes of value offered by energy-related smart city solutions, in order to facilitate the development of sustainable value propositions that can successfully address city needs. The repository is assessed against four elements of value, which include social impact, life-changing, emotional, and functional attributes, according to the value pyramid of Maslow. Results show that the value attributes of quality, motivation, integration, cost reduction, information, and organization are highly relevant to the proposed smart solutions. The results presented in this study are useful for city planners, decision-makers, public bodies, citizens, and businesses interested in designing their energy transition strategy and defining novel technologies that promote urban energy sustainability.

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An Investigation on the Feasibility of Near-Zero and Positive Energy Communities in the Greek Context

Cited by 26 publications

References 17 publications

A Critical Perspective on Positive Energy Districts in Climatically Favoured Regions: An Open-Source Modelling Approach Disclosing Implications and Possibilities

A Critical Perspective on Positive Energy Districts in Climatically Favoured Regions: An Open-Source Modelling Approach Disclosing Implications and Possibilities

The Role of Local Citizen Energy Communities in the Road to Carbon-Neutral Power Systems: Outcomes from a Case Study in Portugal

The Nexus between Market Needs and Value Attributes of Smart City Solutions towards Energy Transition. An Empirical Evidence of Two European Union (EU) Smart Cities, Evora and Alkmaar

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