Even if in Italy district heating and cooling (DHC) accounts for only a small share of thermal energy demand, the sector, primarily based on fossil fuels, is expected to grow. Therefore, increasing the share of DHC and decarbonising the DHC sector are crucial for Italy's climate targets. This paper identifies the main barriers and drivers for Italy's DHC sector through a hybrid approach combining a normative review with direct engagement. Among others, the EU-funded SupportDHC project includes activities to highlight technical and non-technical barriers, supported by a structured capacity-building programme with key Italian operators and stakeholders, such as local administrators, associations, and authorities. Results underscore regulatory uncertainty, fragmented planning processes, insufficient economic incentives, technical integration issues, and limited public awareness as major obstacles. Stakeholders' collaboration proved effective in shaping consensus-based solutions, such as clearer policy frameworks, streamlined procedures, and enhanced investment mechanisms. The study concludes that integrating structured stakeholders' participation into policy and planning processes can substantially accelerate the expansion and decarbonisation of Italy's DHC systems.
{"title":"Decarbonising Italy's district heating and cooling sector: drivers, barriers, and opportunities from stakeholder perspectives","authors":"Paola Caputo , Giulio Ferla , Benedetta Mura , Nicola Cesare Di Nunzio","doi":"10.1016/j.jup.2025.102115","DOIUrl":"10.1016/j.jup.2025.102115","url":null,"abstract":"<div><div>Even if in Italy district heating and cooling (DHC) accounts for only a small share of thermal energy demand, the sector, primarily based on fossil fuels, is expected to grow. Therefore, increasing the share of DHC and decarbonising the DHC sector are crucial for Italy's climate targets. This paper identifies the main barriers and drivers for Italy's DHC sector through a hybrid approach combining a normative review with direct engagement. Among others, the EU-funded SupportDHC project includes activities to highlight technical and non-technical barriers, supported by a structured capacity-building programme with key Italian operators and stakeholders, such as local administrators, associations, and authorities. Results underscore regulatory uncertainty, fragmented planning processes, insufficient economic incentives, technical integration issues, and limited public awareness as major obstacles. Stakeholders' collaboration proved effective in shaping consensus-based solutions, such as clearer policy frameworks, streamlined procedures, and enhanced investment mechanisms. The study concludes that integrating structured stakeholders' participation into policy and planning processes can substantially accelerate the expansion and decarbonisation of Italy's DHC systems.</div></div>","PeriodicalId":23554,"journal":{"name":"Utilities Policy","volume":"98 ","pages":"Article 102115"},"PeriodicalIF":4.4,"publicationDate":"2025-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As global decarbonization intensifies, nuclear energy has received renewed attention, primarily through small modular reactors (SMRs). Although prior studies have highlighted post-Fukushima shifts in nuclear perceptions, there are limited details regarding the factors driving SMR adoption. This study examines the factors influencing nuclear experts' perceptions of SMRs from the perspectives of nuclear experts in South Korea and Japan, two nations where nuclear power policies and public perceptions have evolved significantly since the Fukushima Daiichi disaster. Using the analytic hierarchy process (AHP), we evaluated four primary criteria—safety, economic feasibility, environmental impact, and social factors—through surveys of 45 Korean and 18 Japanese experts. The results indicated that safety is the primary driver in both contexts, with a particular focus on accident prevention and the secure and stable operation of reactors. However, Korean experts tended to emphasize waste management and greenhouse gas reduction, aligning with the country's focus on decarbonization, whereas Japanese experts underscored cost-effectiveness and cybersecurity, consistent with heightened risk awareness following the Fukushima disaster. These findings highlight that robust policy frameworks, clear incentives, and communication strategies are crucial for fostering public trust and accelerating SMR adoption. In nations where public skepticism regarding nuclear energy is high, transparency in risk management and alignment with broader clean energy objectives can reinforce perceptions. By integrating qualitative insights from expert hearings with quantitative AHP-based surveys, this study provides guidance to policymakers, industry leaders, and researchers as they consider the feasibility of SMRs in the transition to a more sustainable energy future.
{"title":"Factors shaping the expert perceptions of small modular reactors in Korea and Japan","authors":"Kirara Kashihara , Bonjun Koo , Seoyong Kim , Tadahiro Shibutani","doi":"10.1016/j.jup.2025.102109","DOIUrl":"10.1016/j.jup.2025.102109","url":null,"abstract":"<div><div>As global decarbonization intensifies, nuclear energy has received renewed attention, primarily through small modular reactors (SMRs). Although prior studies have highlighted post-Fukushima shifts in nuclear perceptions, there are limited details regarding the factors driving SMR adoption. This study examines the factors influencing nuclear experts' perceptions of SMRs from the perspectives of nuclear experts in South Korea and Japan, two nations where nuclear power policies and public perceptions have evolved significantly since the Fukushima Daiichi disaster. Using the analytic hierarchy process (AHP), we evaluated four primary criteria—safety, economic feasibility, environmental impact, and social factors—through surveys of 45 Korean and 18 Japanese experts. The results indicated that safety is the primary driver in both contexts, with a particular focus on accident prevention and the secure and stable operation of reactors. However, Korean experts tended to emphasize waste management and greenhouse gas reduction, aligning with the country's focus on decarbonization, whereas Japanese experts underscored cost-effectiveness and cybersecurity, consistent with heightened risk awareness following the Fukushima disaster. These findings highlight that robust policy frameworks, clear incentives, and communication strategies are crucial for fostering public trust and accelerating SMR adoption. In nations where public skepticism regarding nuclear energy is high, transparency in risk management and alignment with broader clean energy objectives can reinforce perceptions. By integrating qualitative insights from expert hearings with quantitative AHP-based surveys, this study provides guidance to policymakers, industry leaders, and researchers as they consider the feasibility of SMRs in the transition to a more sustainable energy future.</div></div>","PeriodicalId":23554,"journal":{"name":"Utilities Policy","volume":"98 ","pages":"Article 102109"},"PeriodicalIF":4.4,"publicationDate":"2025-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-25DOI: 10.1016/j.jup.2025.102108
Daniel Davi-Arderius , Tooraj Jamasb
The share of renewables and the number of hours with zero or negative prices in day-ahead markets are increasing in many countries. During these hours, some synchronous generators that are not scheduled are activated by system operators at a high cost to ensure minimum reliable operating conditions. As a result, customers experience a paradox when they see positive end costs during hours with zero-negative energy prices, which incentivizes them to reduce consumption when there is a surplus of renewable energy. We use ARMA-GARCH methods to analyze the costs of ancillary services in the Spanish power system (2023–2024) and their relationship with the hourly day-ahead prices and electricity demand. Cost of ancillary services increases by +0.045 €/MWh for each euro reduction in day-ahead prices, and by 0.182 €/MWh for each additional GWh of total scheduled energy demand. Our main conclusion is that, in a renewable-reliant system, electricity prices fail to signal customers, and the total operating system cost of electricity should consider the vertical sum of the energy cost and ancillary service cost. Similar results can be expected in other countries with a high share of renewable energy. Policy should prioritize reducing ancillary service costs to signal customers efficiently.
{"title":"Measuring a paradox: Zero-negative electricity prices","authors":"Daniel Davi-Arderius , Tooraj Jamasb","doi":"10.1016/j.jup.2025.102108","DOIUrl":"10.1016/j.jup.2025.102108","url":null,"abstract":"<div><div>The share of renewables and the number of hours with zero or negative prices in day-ahead markets are increasing in many countries. During these hours, some synchronous generators that are not scheduled are activated by system operators at a high cost to ensure minimum reliable operating conditions. As a result, customers experience a paradox when they see positive end costs during hours with zero-negative energy prices, which incentivizes them to reduce consumption when there is a surplus of renewable energy. We use ARMA-GARCH methods to analyze the costs of ancillary services in the Spanish power system (2023–2024) and their relationship with the hourly day-ahead prices and electricity demand. Cost of ancillary services increases by +0.045 €/MWh for each euro reduction in day-ahead prices, and by 0.182 €/MWh for each additional GWh of total scheduled energy demand. Our main conclusion is that, in a renewable-reliant system, electricity prices fail to signal customers, and the total operating system cost of electricity should consider the vertical sum of the energy cost and ancillary service cost. Similar results can be expected in other countries with a high share of renewable energy. Policy should prioritize reducing ancillary service costs to signal customers efficiently.</div></div>","PeriodicalId":23554,"journal":{"name":"Utilities Policy","volume":"98 ","pages":"Article 102108"},"PeriodicalIF":4.4,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-24DOI: 10.1016/j.jup.2025.102106
Christopher Kanyesigye , Giuliana Ferrero , Sara J. Marks , Charles B. Niwagaba , Robinah N. Kulabako , Frank Kansiime
The World Health Organization recommends Water Safety Plans (WSP) as the most effective means of ensuring safe drinking-water supply. WSP performance evaluation is necessary for improving water service delivery, scaling up, and motivating the roll out of WSP. In this study, the evaluation of WSP development and implementation was done in Bushenyi-Ishaka Municipality, a mid-sized semi-rural town in southwestern Uganda. Training of operations staff and the WSP team was done. Performance indicator data were collected before, during, and after 18 months of WSP implementation to determine the changes attributable to this intervention. Structured semi-quantitative questionnaires were used for data collection, which consisted of 11 progressive outcome indicators categorized under operational and institutional changes, and 14 short-term impact indicators categorized under water supply change. Results showed that WSP implementation enabled improvement in infrastructure, operational monitoring, customer engagement meetings, and training. Implementation of WSP did not result in improved catchment management, development and review of standard operating procedures and holding of internal meetings. Regarding short-term impacts, there was a significant improvement in compliance levels with drinking water quality standards, continuity of water supply, and customer satisfaction, as assessed by the frequency of complaints. There was, however, a significant reduction in the revenue-cost ratio (p = 0.001), likely due to an inadequate budget for implementing service expansion.
{"title":"Evaluation of Water Safety Plan outcomes and impacts in Bushenyi-Ishaka Municipality, Uganda","authors":"Christopher Kanyesigye , Giuliana Ferrero , Sara J. Marks , Charles B. Niwagaba , Robinah N. Kulabako , Frank Kansiime","doi":"10.1016/j.jup.2025.102106","DOIUrl":"10.1016/j.jup.2025.102106","url":null,"abstract":"<div><div>The World Health Organization recommends Water Safety Plans (WSP) as the most effective means of ensuring safe drinking-water supply. WSP performance evaluation is necessary for improving water service delivery, scaling up, and motivating the roll out of WSP. In this study, the evaluation of WSP development and implementation was done in Bushenyi-Ishaka Municipality, a mid-sized semi-rural town in southwestern Uganda. Training of operations staff and the WSP team was done. Performance indicator data were collected before, during, and after 18 months of WSP implementation to determine the changes attributable to this intervention. Structured semi-quantitative questionnaires were used for data collection, which consisted of 11 progressive outcome indicators categorized under operational and institutional changes, and 14 short-term impact indicators categorized under water supply change. Results showed that WSP implementation enabled improvement in infrastructure, operational monitoring, customer engagement meetings, and training. Implementation of WSP did not result in improved catchment management, development and review of standard operating procedures and holding of internal meetings. Regarding short-term impacts, there was a significant improvement in compliance levels with drinking water quality standards, continuity of water supply, and customer satisfaction, as assessed by the frequency of complaints. There was, however, a significant reduction in the revenue-cost ratio (<em>p = 0.001</em>), likely due to an inadequate budget for implementing service expansion.</div></div>","PeriodicalId":23554,"journal":{"name":"Utilities Policy","volume":"98 ","pages":"Article 102106"},"PeriodicalIF":4.4,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-22DOI: 10.1016/j.jup.2025.102110
Amsalu Woldie Yalew
Policy reforms targeting implicit subsidies to public power utilities are expected to have repercussions on the electricity sector, as well as the rest of the economy. This study aims to glean insights into the potential direct and indirect effects of reforming implicit power sector subsidies in the context of low-income countries. Using a computable general equilibrium (CGE) model, it is demonstrated that a hypothetical reduction in implicit subsidies in Ethiopia would increase the share of off-grid sources in the total electricity supply and enhance production efficiency in the grid electricity sector, with no substantial impact on GDP.
{"title":"Sectoral and macroeconomic implications of reducing implicit power sector subsidies in developing countries: Insights from Ethiopia","authors":"Amsalu Woldie Yalew","doi":"10.1016/j.jup.2025.102110","DOIUrl":"10.1016/j.jup.2025.102110","url":null,"abstract":"<div><div>Policy reforms targeting implicit subsidies to public power utilities are expected to have repercussions on the electricity sector, as well as the rest of the economy. This study aims to glean insights into the potential direct and indirect effects of reforming implicit power sector subsidies in the context of low-income countries. Using a computable general equilibrium (CGE) model, it is demonstrated that a hypothetical reduction in implicit subsidies in Ethiopia would increase the share of off-grid sources in the total electricity supply and enhance production efficiency in the grid electricity sector, with no substantial impact on GDP.</div></div>","PeriodicalId":23554,"journal":{"name":"Utilities Policy","volume":"98 ","pages":"Article 102110"},"PeriodicalIF":4.4,"publicationDate":"2025-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-22DOI: 10.1016/j.jup.2025.102087
Daniele Stampatori , Sanchayan Banerjee , José Pablo Chaves Ávila
Electricity end users can contribute to the secure operation of the future power system by aligning their electricity consumption with the overall system's needs. To facilitate this, end users should receive economic signals that are economically optimal and behaviourally salient to guide their decisions. In fact, end users may not respond to economic signals solely based on economic evaluations. We propose a conceptual framework that describes ways in which key stakeholders can influence end-user behaviour in demand response programmes. We do this in two steps. First, we identify key stakeholders by examining demand response contracts. Second, we categorise literature on end-user behaviour in electricity demand response through the established Capability, Opportunity, Motivation – Behaviour (COM-B) model. We extend this model by integrating behaviourally informed tools that stakeholders can employ to facilitate end-user participation in demand response programmes. Our setup enables policymakers to better understand key behavioural determinants, allowing them to design behaviourally informed energy policies for demand response.
{"title":"Shaping electricity end-user behaviour for demand response using the COM-B model","authors":"Daniele Stampatori , Sanchayan Banerjee , José Pablo Chaves Ávila","doi":"10.1016/j.jup.2025.102087","DOIUrl":"10.1016/j.jup.2025.102087","url":null,"abstract":"<div><div>Electricity end users can contribute to the secure operation of the future power system by aligning their electricity consumption with the overall system's needs. To facilitate this, end users should receive economic signals that are economically optimal and behaviourally salient to guide their decisions. In fact, end users may not respond to economic signals solely based on economic evaluations. We propose a conceptual framework that describes ways in which key stakeholders can influence end-user behaviour in demand response programmes. We do this in two steps. First, we identify key stakeholders by examining demand response contracts. Second, we categorise literature on end-user behaviour in electricity demand response through the established Capability, Opportunity, Motivation – Behaviour (COM-B) model. We extend this model by integrating behaviourally informed tools that stakeholders can employ to facilitate end-user participation in demand response programmes. Our setup enables policymakers to better understand key behavioural determinants, allowing them to design behaviourally informed energy policies for demand response.</div></div>","PeriodicalId":23554,"journal":{"name":"Utilities Policy","volume":"98 ","pages":"Article 102087"},"PeriodicalIF":4.4,"publicationDate":"2025-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145569022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-22DOI: 10.1016/j.jup.2025.102105
Elias Cavalcante-Filho , Rodrigo De-Losso , Felipe Sande , José Roberto Savoia
This paper examines the multifaceted impact of regulatory changes on systemic risk within the affected sector and their contagion effects on other regulated industries. Using the sudden implementation of Brazilian legislation (Provisional Act No. 579/2012, which restructured the electricity sector) as a natural experiment, we assess whether such a policy shock increased market risk exposure for directly and indirectly affected firms. To estimate causal effects, we combine the Synthetic Control Method and Difference-in-Differences approaches, using CAPM betas as the measure of systemic risk for publicly traded firms between 2005 and 2018. The results indicate that PA579 significantly increased the systemic risk of electricity companies and also raised market risk in other regulated sectors, including highways, healthcare, gas, telephony, sanitation, and aviation. These findings highlight that abrupt regulatory interventions can propagate credibility shocks beyond their target sector, underscoring the importance of transparency and predictability in regulatory policy design.
{"title":"Cross-sectoral effects of regulatory uncertainty: Lessons from Brazil","authors":"Elias Cavalcante-Filho , Rodrigo De-Losso , Felipe Sande , José Roberto Savoia","doi":"10.1016/j.jup.2025.102105","DOIUrl":"10.1016/j.jup.2025.102105","url":null,"abstract":"<div><div>This paper examines the multifaceted impact of regulatory changes on systemic risk within the affected sector and their contagion effects on other regulated industries. Using the sudden implementation of Brazilian legislation (Provisional Act No. 579/2012, which restructured the electricity sector) as a natural experiment, we assess whether such a policy shock increased market risk exposure for directly and indirectly affected firms. To estimate causal effects, we combine the Synthetic Control Method and Difference-in-Differences approaches, using CAPM betas as the measure of systemic risk for publicly traded firms between 2005 and 2018. The results indicate that PA579 significantly increased the systemic risk of electricity companies and also raised market risk in other regulated sectors, including highways, healthcare, gas, telephony, sanitation, and aviation. These findings highlight that abrupt regulatory interventions can propagate credibility shocks beyond their target sector, underscoring the importance of transparency and predictability in regulatory policy design.</div></div>","PeriodicalId":23554,"journal":{"name":"Utilities Policy","volume":"98 ","pages":"Article 102105"},"PeriodicalIF":4.4,"publicationDate":"2025-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-21DOI: 10.1016/j.jup.2025.102107
Juntao Zhen, Laijun Zhao, Chenchen Wang, Youfeng Cheng, Hongru Yi, Ke Wang
Under the guidance of peak carbon and neutrality goals and driven by its energy transition strategy, China introduced a renewable energy consumption responsibility mechanism. However, provinces currently act independently regarding electricity consumption, making it difficult to simultaneously reduce the costs of their renewable energy consumption responsibility weights (CRWs) while increasing electricity revenue. To solve this problem, we constructed a bi-level multi-objective cross-provincial renewable energy consumption transfer fees model (CTFM), in which the central government is the upper level and provincial governments are the lower level. The leader sets the prices for renewable energy consumption transfer fees to minimize the total cost caused by the CRWs and maximize electricity revenue within the cooperative region. Followers then respond to the leader's transfer fees by optimizing their electricity consumption strategies to reduce the cost of their CRW and increase electricity revenue. The model is solved using bi-level programming combined with a relaxation approach and is applied to a cooperative region comprising Beijing, Shandong, Hebei, and Inner Mongolia. Compared with the independent approach, a transfer price of 0.351 CNY/kWh allowed the CTFM to reduce the fulfillment cost by 206.869 × 10^8 CNY (13.785 %) and increase electricity revenue by 1779.845 × 10^8 CNY (5.718 %). Sensitivity analysis showed how variations in provincial green electricity generation affected costs and revenues. Our results provide a reference for Chinese provinces to formulate cooperative electricity consumption strategies that balance costs and benefits, thereby promoting a green and low-carbon transition in the power sector.
{"title":"A bi-level multi-objective optimization model for cross-provincial transfer fees to promote cooperation in renewable energy consumption","authors":"Juntao Zhen, Laijun Zhao, Chenchen Wang, Youfeng Cheng, Hongru Yi, Ke Wang","doi":"10.1016/j.jup.2025.102107","DOIUrl":"10.1016/j.jup.2025.102107","url":null,"abstract":"<div><div>Under the guidance of peak carbon and neutrality goals and driven by its energy transition strategy, China introduced a renewable energy consumption responsibility mechanism. However, provinces currently act independently regarding electricity consumption, making it difficult to simultaneously reduce the costs of their renewable energy consumption responsibility weights (CRWs) while increasing electricity revenue. To solve this problem, we constructed a bi-level multi-objective cross-provincial renewable energy consumption transfer fees model (CTFM), in which the central government is the upper level and provincial governments are the lower level. The leader sets the prices for renewable energy consumption transfer fees to minimize the total cost caused by the CRWs and maximize electricity revenue within the cooperative region. Followers then respond to the leader's transfer fees by optimizing their electricity consumption strategies to reduce the cost of their CRW and increase electricity revenue. The model is solved using bi-level programming combined with a relaxation approach and is applied to a cooperative region comprising Beijing, Shandong, Hebei, and Inner Mongolia. Compared with the independent approach, a transfer price of 0.351 CNY/kWh allowed the CTFM to reduce the fulfillment cost by 206.869 × 10^8 CNY (13.785 %) and increase electricity revenue by 1779.845 × 10^8 CNY (5.718 %). Sensitivity analysis showed how variations in provincial green electricity generation affected costs and revenues. Our results provide a reference for Chinese provinces to formulate cooperative electricity consumption strategies that balance costs and benefits, thereby promoting a green and low-carbon transition in the power sector.</div></div>","PeriodicalId":23554,"journal":{"name":"Utilities Policy","volume":"98 ","pages":"Article 102107"},"PeriodicalIF":4.4,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145569023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-19DOI: 10.1016/j.jup.2025.102103
Omid Motamedisedeh , Sara Omrani , Robin Drogemuller , Geoffrey Walker , Faranak Zagia , Zahra Motamedi Sedeh
This paper presents a comprehensive techno-economic optimization model to examine how optimal configurations of residential PV-battery systems have evolved across five Australian states over a twelve-year period (2013/14 to 2024/25), driven by changes in policy, electricity tariffs, and technology costs. As the global leader in rooftop solar adoption, Australia offers a valuable case for understanding the long-term dynamics of distributed energy systems. Unlike previous studies that focus on a single metric or static analysis, this research provides three key contributions: (a) a multi-indicator framework that evaluates financial and technical performance using metrics such as Net Present Value, Selfe-Consumption and Selfe-Sufficiency ratios, Cost of Electricity, and Curtailed-Supply Fraction; (b) a long-term temporal analysis that compares optimal system configurations and performance indicators across twelve consecutive years; and (c) a geographically diverse case study across Queensland, New South Wales, South Australia, Victoria, and Tasmania to capture regional variation. Results show that PV systems consistently delivered substantial financial benefits across most states, with average IRRs of ∼20 % and household electricity costs reduced by around 35 %. The highest savings were observed in Queensland, where PV-battery systems cut household electricity costs by up to 72 % in 2023. In the early years, optimal PV sizes ranged from 4 to 6 kW but expanded to 15–16 kW in recent years due to declining technology costs. Battery adoption, which became financially viable only from 2023 onward, increased household self-sufficiency to an average of 60 % and up to 76 % in South Australia, although self-consumption fell to 30–40 % in some oversized systems. Tasmania was an outlier, where PV adoption was not financially attractive until after 2015, and batteries remained non-viable throughout the study period.
{"title":"Techno-economic optimization of PV-battery systems in five Australian states","authors":"Omid Motamedisedeh , Sara Omrani , Robin Drogemuller , Geoffrey Walker , Faranak Zagia , Zahra Motamedi Sedeh","doi":"10.1016/j.jup.2025.102103","DOIUrl":"10.1016/j.jup.2025.102103","url":null,"abstract":"<div><div>This paper presents a comprehensive techno-economic optimization model to examine how optimal configurations of residential PV-battery systems have evolved across five Australian states over a twelve-year period (2013/14 to 2024/25), driven by changes in policy, electricity tariffs, and technology costs. As the global leader in rooftop solar adoption, Australia offers a valuable case for understanding the long-term dynamics of distributed energy systems. Unlike previous studies that focus on a single metric or static analysis, this research provides three key contributions: (a) a multi-indicator framework that evaluates financial and technical performance using metrics such as Net Present Value, Selfe-Consumption and Selfe-Sufficiency ratios, Cost of Electricity, and Curtailed-Supply Fraction; (b) a long-term temporal analysis that compares optimal system configurations and performance indicators across twelve consecutive years; and (c) a geographically diverse case study across Queensland, New South Wales, South Australia, Victoria, and Tasmania to capture regional variation. Results show that PV systems consistently delivered substantial financial benefits across most states, with average IRRs of ∼20 % and household electricity costs reduced by around 35 %. The highest savings were observed in Queensland, where PV-battery systems cut household electricity costs by up to 72 % in 2023. In the early years, optimal PV sizes ranged from 4 to 6 kW but expanded to 15–16 kW in recent years due to declining technology costs. Battery adoption, which became financially viable only from 2023 onward, increased household self-sufficiency to an average of 60 % and up to 76 % in South Australia, although self-consumption fell to 30–40 % in some oversized systems. Tasmania was an outlier, where PV adoption was not financially attractive until after 2015, and batteries remained non-viable throughout the study period.</div></div>","PeriodicalId":23554,"journal":{"name":"Utilities Policy","volume":"98 ","pages":"Article 102103"},"PeriodicalIF":4.4,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145569024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-14DOI: 10.1016/j.jup.2025.102104
Josh A. Dippenaar , Bernard Bekker , Kevin Foster , Megan Davies
The rapid proliferation of distributed energy resources (DERs), including solar PV, battery storage, and electric vehicles, is fundamentally transforming power systems worldwide. Regulatory frameworks for the grid integration of DERs have struggled to keep pace, resulting in widespread non-compliance and a range of technical and financial challenges. This paper introduces a novel, penetration-based synthesis that maps DER impacts – including distribution grid constraints, utility revenue pressures, system flexibility, and stability concerns according to the level of DER adoption. We foreground the role of soft law – non-binding guidelines, voluntary standards, and stakeholder coalitions – and the concept of transition work as critical mechanisms for adaptive regulation. Drawing on a systematic literature review and international case studies, we identify how these impacts emerge at different penetration levels and demonstrate how timely, flexible regulatory responses can mitigate risks. Our analysis shows that adaptive, equitable tariff design and collaborative institutional reform are essential for sustainable DER integration. We argue that soft law and transition work enable more responsive, anticipatory regulation than traditional hard law alone. These findings offer actionable pathways for policymakers, regulators, and utility managers seeking to address the evolving technical and institutional challenges of DER integration and accelerate the energy transition.
{"title":"A synthesis of distributed energy resource impacts and regulatory responses with a focus on soft law","authors":"Josh A. Dippenaar , Bernard Bekker , Kevin Foster , Megan Davies","doi":"10.1016/j.jup.2025.102104","DOIUrl":"10.1016/j.jup.2025.102104","url":null,"abstract":"<div><div>The rapid proliferation of distributed energy resources (DERs), including solar PV, battery storage, and electric vehicles, is fundamentally transforming power systems worldwide. Regulatory frameworks for the grid integration of DERs have struggled to keep pace, resulting in widespread non-compliance and a range of technical and financial challenges. This paper introduces a novel, penetration-based synthesis that maps DER impacts – including distribution grid constraints, utility revenue pressures, system flexibility, and stability concerns according to the level of DER adoption. We foreground the role of soft law – non-binding guidelines, voluntary standards, and stakeholder coalitions – and the concept of transition work as critical mechanisms for adaptive regulation. Drawing on a systematic literature review and international case studies, we identify how these impacts emerge at different penetration levels and demonstrate how timely, flexible regulatory responses can mitigate risks. Our analysis shows that adaptive, equitable tariff design and collaborative institutional reform are essential for sustainable DER integration. We argue that soft law and transition work enable more responsive, anticipatory regulation than traditional hard law alone. These findings offer actionable pathways for policymakers, regulators, and utility managers seeking to address the evolving technical and institutional challenges of DER integration and accelerate the energy transition.</div></div>","PeriodicalId":23554,"journal":{"name":"Utilities Policy","volume":"98 ","pages":"Article 102104"},"PeriodicalIF":4.4,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145517456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}