Energy for Sustainable Development最新文献_第7页

Biogas and the circular economy: Rethinking rural employment in Limpopo, South Africa 沼气与循环经济：重新思考南非林波波省的农村就业

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2025-11-06 DOI: 10.1016/j.esd.2025.101882

Thilivhali Rasimphi , David Tinarwo , Sophie Mulaudzi

Biogas technology presents a viable pathway to address energy poverty and unemployment in rural South Africa, offering clean energy from organic waste while creating opportunities for income generation. Despite its potential, adoption in Limpopo Province remains low, constrained by economic, technical, and socio-cultural barriers. This study investigates how biogas initiatives contribute to job creation and livelihood improvement, using a qualitative, grounded theory approach. Data were collected through 22 semi-structured interviews with households, technicians, youth entrepreneurs, and policymakers across Sekhukhune, Capricorn, and Vhembe districts. The findings show that biogas projects generate both direct employment, in activities such as digester construction, installation, and maintenance, and indirect employment through the production and use of biofertilizer. However, uptake is limited by high installation costs, insufficient technical support, and fragmented policy and institutional frameworks. To enhance adoption and employment outcomes, the study recommends targeted subsidies, ongoing technical training, and inclusive public–private partnerships. These insights underline the importance of community-centered strategies that integrate technical, economic, and social considerations, offering practical guidance for policymakers and development practitioners seeking to promote sustainable energy solutions and improve livelihoods in rural South African communities.

沼气技术为解决南非农村的能源贫困和失业问题提供了一条可行的途径，从有机废物中提供清洁能源，同时创造创收机会。尽管有潜力，林波波省的采用率仍然很低，受到经济、技术和社会文化障碍的限制。本研究采用定性的、扎根的理论方法，调查了沼气倡议如何有助于创造就业机会和改善生计。数据是通过对Sekhukhune、Capricorn和Vhembe地区的家庭、技术人员、青年企业家和政策制定者进行的22次半结构化访谈收集的。研究结果表明，沼气项目既能在沼气池建设、安装和维护等活动中创造直接就业机会，也能通过生产和使用生物肥料创造间接就业机会。然而，由于安装成本高、技术支持不足以及政策和体制框架不统一，这种吸收受到限制。为了提高采用率和就业成果，该研究建议有针对性的补贴、持续的技术培训和包容性的公私伙伴关系。这些见解强调了以社区为中心的战略的重要性，这些战略综合了技术、经济和社会方面的考虑，为寻求促进可持续能源解决方案和改善南非农村社区生计的政策制定者和发展实践者提供了实用指导。

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引用次数: 0

Development of an ESG evaluation framework for China's energy industry using the PSR–AHP model 运用PSR-AHP模型构建中国能源行业ESG评估框架

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2025-11-04 DOI: 10.1016/j.esd.2025.101877

Lin Mengyuan , Takehiko Murayama , Shigeo Nishikizawa , Kultip Suwanteep

In recent years, environmental, social, and governance (ESG) considerations have emerged as critical tools for evaluating the sustainable development capacity of economic entities, with information disclosure serving as an essential component of ESG assessment frameworks. However, in China, ESG disclosure among enterprises, particularly within the energy industry, remains insufficient. Moreover, most existing evaluation systems are adapted from foreign models and fail to account for the unique characteristics of Chinese enterprises and industry-specific contexts. To address these shortcomings, this study develops an ESG evaluation system tailored to the Chinese energy industry by integrating the pressure–state–response (PSR) model with the analytic hierarchy process. The proposed system comprises a three-level structure, including a goal layer encompassing environmental performance, social responsibility, and corporate governance; a first criteria layer subdivided into 9 PSR-based categories; and a second criteria layer containing 32 specific indicators. To ensure comprehensive and socially relevant weighting of the indicators, surveys were conducted among both experts and practitioners, and the aggregation of individual judgments method was employed to synthesize their assessments. The evaluation system was applied to five major state-owned Chinese energy enterprises, whose combined installed capacity represented over half of the national total, using ESG disclosure data from 2019 to 2023. The results indicate that while these enterprises generally achieved high ESG scores (all exceeding 0.75), their performance exhibited notable fluctuations, particularly in the environmental and governance dimensions. Environmental performance emerged as the most influential and volatile factor, underscoring its central role in shaping overall ESG outcomes. Social performance showed steady improvement, while governance performance followed a fluctuating trajectory before eventually rebounding. These findings highlight the necessity of developing stricter environmental standards alongside an ESG evaluation framework that accounts for industry-specific characteristics, in order to promote sustainable development and accelerate the green transformation of China's energy sector.

近年来，环境、社会和治理（ESG）因素已成为评估经济实体可持续发展能力的重要工具，信息披露是ESG评估框架的重要组成部分。然而，在中国，企业特别是能源行业的企业的ESG信息披露仍然不足。此外，大多数现有的评估体系都是借鉴国外模型，未能考虑到中国企业的独特特征和行业具体背景。针对这些不足，本研究将压力-状态-响应（PSR）模型与层次分析法相结合，构建了适合中国能源行业的ESG评价体系。该体系由三层结构组成，其中目标层包括环境绩效、社会责任和公司治理；第一个标准层细分为9个基于psr的类别；第二个标准层包含32个具体指标。为确保各指标的权重具有全面性和社会相关性，我们对专家和从业人员进行了问卷调查，并采用个人判断聚合法对他们的评价进行综合。该评估体系采用2019年至2023年的ESG披露数据，应用于中国五大国有能源企业，其总装机容量占全国总装机容量的一半以上。结果表明，虽然这些企业的ESG得分普遍较高（均超过0.75），但其绩效波动明显，特别是在环境和治理维度上。环境绩效成为最具影响力和最不稳定的因素，强调了其在塑造整体ESG成果方面的核心作用。社会绩效稳步改善，而治理绩效则在最终反弹之前经历了波动。这些发现强调了制定更严格的环境标准以及考虑行业特定特征的ESG评估框架的必要性，以促进可持续发展并加速中国能源部门的绿色转型。

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引用次数: 0

Deep localization: A pathway to achieve self-sustainable ecosystem for the Indian Solar PV industry 深度本地化：印度太阳能光伏产业实现自我可持续生态系统的途径

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2025-11-04 DOI: 10.1016/j.esd.2025.101880

Ankit Agrawal , Sudeep kumar Pradhan , Bijay kumar Rout

The whole world is committed to decarbonize and climate change control objectives, with solar energy at the forefront of its energy transition. While solar installations across globe increase, critical solar manufacturing remains highly concentrated in China. This creates reliance on imports and exposes India's vulnerability to the supply chain. Despite India's ambitious target to achieve 500GW of renewable capacity by 2030, its dependence on imported solar modules, cells, unavailability of wafers, and polysilicon manufacturing raises concerns over self-reliance and long-term sustainability.

To address these challenges, Deep Localization (DL) framework that extends conventional localization framework by fostering innovation, circular economy practices, building trust, and a resilient domestic supply chain. The variables were identified through a literature review and expert inputs. Exploratory Factor Analysis was applied to determine the factor structure and eliminate weak variables. A hypothesized model was developed to analyze the interplay between policy, risk, and demand management, DL, and their impact on supplier and manufacturer development in India's solar PV sector. Data was collected through a structured questionnaire survey from 411 respondents, and the model was validated using Structural Equation Modelling.

The findings highlight that policy management is essential for risk mitigation. The integrated policy, demand and risk management create an enabling environment for DL, with a strong focus on creating a robust supplier-manufacturer network to enhance competitiveness. By adopting DL strategies, India can transition from an import driven country to a global manufacturing hub, ensuring India's ambitions for economic growth, sustainability, and energy security.

全世界都致力于实现脱碳和气候变化控制目标，太阳能处于其能源转型的前沿。虽然全球的太阳能装置在增加，但关键的太阳能制造仍然高度集中在中国。这造成了对进口的依赖，并暴露了印度在供应链上的脆弱性。尽管印度雄心勃勃的目标是到2030年实现500吉瓦的可再生能源产能，但印度对进口太阳能组件、电池的依赖、硅片和多晶硅制造的缺乏，引发了人们对自力更生和长期可持续性的担忧。为了应对这些挑战，深度本地化（DL）框架通过促进创新、循环经济实践、建立信任和弹性的国内供应链来扩展传统的本地化框架。这些变量是通过文献回顾和专家输入来确定的。采用探索性因子分析确定因子结构，剔除弱变量。本文建立了一个假设模型来分析政策、风险和需求管理之间的相互作用，以及它们对印度太阳能光伏行业供应商和制造商发展的影响。通过对411名受访者的结构化问卷调查收集数据，并使用结构方程模型对模型进行验证。研究结果强调，政策管理对于减轻风险至关重要。综合政策、需求和风险管理为DL创造了一个有利的环境，重点是建立一个强大的供应商-制造商网络，以提高竞争力。通过采用DL战略，印度可以从一个进口驱动型国家转变为全球制造业中心，确保印度实现经济增长、可持续发展和能源安全的雄心。

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引用次数: 0

Deep localization: A pathway to achieve self-sustainable ecosystem for the Indian Solar PV industry 深度本地化：印度太阳能光伏产业实现自我可持续生态系统的途径

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2025-11-04 DOI: 10.1016/j.esd.2025.101880

Ankit Agrawal , Sudeep kumar Pradhan , Bijay kumar Rout

The whole world is committed to decarbonize and climate change control objectives, with solar energy at the forefront of its energy transition. While solar installations across globe increase, critical solar manufacturing remains highly concentrated in China. This creates reliance on imports and exposes India's vulnerability to the supply chain. Despite India's ambitious target to achieve 500GW of renewable capacity by 2030, its dependence on imported solar modules, cells, unavailability of wafers, and polysilicon manufacturing raises concerns over self-reliance and long-term sustainability.

To address these challenges, Deep Localization (DL) framework that extends conventional localization framework by fostering innovation, circular economy practices, building trust, and a resilient domestic supply chain. The variables were identified through a literature review and expert inputs. Exploratory Factor Analysis was applied to determine the factor structure and eliminate weak variables. A hypothesized model was developed to analyze the interplay between policy, risk, and demand management, DL, and their impact on supplier and manufacturer development in India's solar PV sector. Data was collected through a structured questionnaire survey from 411 respondents, and the model was validated using Structural Equation Modelling.

The findings highlight that policy management is essential for risk mitigation. The integrated policy, demand and risk management create an enabling environment for DL, with a strong focus on creating a robust supplier-manufacturer network to enhance competitiveness. By adopting DL strategies, India can transition from an import driven country to a global manufacturing hub, ensuring India's ambitions for economic growth, sustainability, and energy security.

全世界都致力于实现脱碳和气候变化控制目标，太阳能处于其能源转型的前沿。虽然全球的太阳能装置在增加，但关键的太阳能制造仍然高度集中在中国。这造成了对进口的依赖，并暴露了印度在供应链上的脆弱性。尽管印度雄心勃勃的目标是到2030年实现500吉瓦的可再生能源产能，但印度对进口太阳能组件、电池的依赖、硅片和多晶硅制造的缺乏，引发了人们对自力更生和长期可持续性的担忧。为了应对这些挑战，深度本地化（DL）框架通过促进创新、循环经济实践、建立信任和弹性的国内供应链来扩展传统的本地化框架。这些变量是通过文献回顾和专家输入来确定的。采用探索性因子分析确定因子结构，剔除弱变量。本文建立了一个假设模型来分析政策、风险和需求管理之间的相互作用，以及它们对印度太阳能光伏行业供应商和制造商发展的影响。通过对411名受访者的结构化问卷调查收集数据，并使用结构方程模型对模型进行验证。研究结果强调，政策管理对于减轻风险至关重要。综合政策、需求和风险管理为DL创造了一个有利的环境，重点是建立一个强大的供应商-制造商网络，以提高竞争力。通过采用DL战略，印度可以从一个进口驱动型国家转变为全球制造业中心，确保印度实现经济增长、可持续发展和能源安全的雄心。

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引用次数: 0

Development of an ESG evaluation framework for China's energy industry using the PSR–AHP model 运用PSR-AHP模型构建中国能源行业ESG评估框架

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2025-11-04 DOI: 10.1016/j.esd.2025.101877

Lin Mengyuan , Takehiko Murayama , Shigeo Nishikizawa , Kultip Suwanteep

In recent years, environmental, social, and governance (ESG) considerations have emerged as critical tools for evaluating the sustainable development capacity of economic entities, with information disclosure serving as an essential component of ESG assessment frameworks. However, in China, ESG disclosure among enterprises, particularly within the energy industry, remains insufficient. Moreover, most existing evaluation systems are adapted from foreign models and fail to account for the unique characteristics of Chinese enterprises and industry-specific contexts. To address these shortcomings, this study develops an ESG evaluation system tailored to the Chinese energy industry by integrating the pressure–state–response (PSR) model with the analytic hierarchy process. The proposed system comprises a three-level structure, including a goal layer encompassing environmental performance, social responsibility, and corporate governance; a first criteria layer subdivided into 9 PSR-based categories; and a second criteria layer containing 32 specific indicators. To ensure comprehensive and socially relevant weighting of the indicators, surveys were conducted among both experts and practitioners, and the aggregation of individual judgments method was employed to synthesize their assessments. The evaluation system was applied to five major state-owned Chinese energy enterprises, whose combined installed capacity represented over half of the national total, using ESG disclosure data from 2019 to 2023. The results indicate that while these enterprises generally achieved high ESG scores (all exceeding 0.75), their performance exhibited notable fluctuations, particularly in the environmental and governance dimensions. Environmental performance emerged as the most influential and volatile factor, underscoring its central role in shaping overall ESG outcomes. Social performance showed steady improvement, while governance performance followed a fluctuating trajectory before eventually rebounding. These findings highlight the necessity of developing stricter environmental standards alongside an ESG evaluation framework that accounts for industry-specific characteristics, in order to promote sustainable development and accelerate the green transformation of China's energy sector.

近年来，环境、社会和治理（ESG）因素已成为评估经济实体可持续发展能力的重要工具，信息披露是ESG评估框架的重要组成部分。然而，在中国，企业特别是能源行业的企业的ESG信息披露仍然不足。此外，大多数现有的评估体系都是借鉴国外模型，未能考虑到中国企业的独特特征和行业具体背景。针对这些不足，本研究将压力-状态-响应（PSR）模型与层次分析法相结合，构建了适合中国能源行业的ESG评价体系。该体系由三层结构组成，其中目标层包括环境绩效、社会责任和公司治理；第一个标准层细分为9个基于psr的类别；第二个标准层包含32个具体指标。为确保各指标的权重具有全面性和社会相关性，我们对专家和从业人员进行了问卷调查，并采用个人判断聚合法对他们的评价进行综合。该评估体系采用2019年至2023年的ESG披露数据，应用于中国五大国有能源企业，其总装机容量占全国总装机容量的一半以上。结果表明，虽然这些企业的ESG得分普遍较高（均超过0.75），但其绩效波动明显，特别是在环境和治理维度上。环境绩效成为最具影响力和最不稳定的因素，强调了其在塑造整体ESG成果方面的核心作用。社会绩效稳步改善，而治理绩效则在最终反弹之前经历了波动。这些发现强调了制定更严格的环境标准以及考虑行业特定特征的ESG评估框架的必要性，以促进可持续发展并加速中国能源部门的绿色转型。

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引用次数: 0

Fueling the transition: The infrastructure and retrofitting hurdles to natural gas uptake 推动转型：基础设施和改造障碍对天然气的吸收

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2025-11-04 DOI: 10.1016/j.esd.2025.101879

Majah-Leah V. Ravago , Karl Robert L. Jandoc , Brian Jason H. Ponce , Mithi Maria Peñaranda , Renzi G. Frias , Raul V. Fabella

We examine how technical characteristics influence firms' decisions to adopt natural gas as an alternative fuel in their production processes. Using firm-level data, we first identify key drivers of adoption through probit models, highlighting the roles of heating equipment, cost competitiveness, and prior knowledge of natural gas. To extend the analysis, we apply LASSO regression to incorporate a wider set of predictors, including infrastructure access, retrofitting costs, electricity source, environmental awareness, and firm characteristics. Our results show that proximity to fueling or regasification stations is strongly associated with a higher probability of adoption, while high retrofitting costs show a robust negative correlation. Firms reliant on major grid-based electricity providers or familiar with renewable energy sources are less open to switching, suggesting perceived reliability of existing energy sources or a preference for technologies more directly aligned with renewable commitments. Conversely, firm-level familiarity with natural gas consistently exhibits a positive and significant association with adoption. We observe moderate heterogeneity in openness to switch to natural gas across firm types, with the highest propensity among those using heating equipment in core operations. These findings emphasize the importance of infrastructure access, technical knowledge, and financial constraints in shaping the transition to cleaner fuels in industrial sectors. We highlight the “renewable energy commitment effect,” which is the reluctance to switch to a fuel less committed to renewables.

我们研究了技术特征如何影响企业在生产过程中采用天然气作为替代燃料的决策。利用公司层面的数据，我们首先通过probit模型确定了采用该技术的关键驱动因素，强调了供暖设备、成本竞争力和天然气先验知识的作用。为了扩展分析，我们应用LASSO回归来纳入更广泛的预测因素，包括基础设施获取、改造成本、电力来源、环境意识和企业特征。我们的研究结果表明，靠近加氢站或再气化站与更高的采用概率密切相关，而高改造成本则表现出强烈的负相关。依赖主要电网供电供应商或熟悉可再生能源的公司不太愿意转换，这表明现有能源的可靠性或对更直接符合可再生能源承诺的技术的偏好。相反，公司层面对天然气的熟悉程度始终与采用率呈显著正相关。我们观察到，不同类型的公司在转向天然气的开放程度上存在适度的异质性，在核心业务中使用加热设备的公司中，倾向程度最高。这些研究结果强调了基础设施获取、技术知识和资金限制对工业部门向清洁燃料过渡的重要性。我们强调了“可再生能源承诺效应”，即不愿转向可再生能源承诺较少的燃料。

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引用次数: 0

Fueling the transition: The infrastructure and retrofitting hurdles to natural gas uptake 推动转型：基础设施和改造障碍对天然气的吸收

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2025-11-04 DOI: 10.1016/j.esd.2025.101879

Majah-Leah V. Ravago , Karl Robert L. Jandoc , Brian Jason H. Ponce , Mithi Maria Peñaranda , Renzi G. Frias , Raul V. Fabella

We examine how technical characteristics influence firms' decisions to adopt natural gas as an alternative fuel in their production processes. Using firm-level data, we first identify key drivers of adoption through probit models, highlighting the roles of heating equipment, cost competitiveness, and prior knowledge of natural gas. To extend the analysis, we apply LASSO regression to incorporate a wider set of predictors, including infrastructure access, retrofitting costs, electricity source, environmental awareness, and firm characteristics. Our results show that proximity to fueling or regasification stations is strongly associated with a higher probability of adoption, while high retrofitting costs show a robust negative correlation. Firms reliant on major grid-based electricity providers or familiar with renewable energy sources are less open to switching, suggesting perceived reliability of existing energy sources or a preference for technologies more directly aligned with renewable commitments. Conversely, firm-level familiarity with natural gas consistently exhibits a positive and significant association with adoption. We observe moderate heterogeneity in openness to switch to natural gas across firm types, with the highest propensity among those using heating equipment in core operations. These findings emphasize the importance of infrastructure access, technical knowledge, and financial constraints in shaping the transition to cleaner fuels in industrial sectors. We highlight the “renewable energy commitment effect,” which is the reluctance to switch to a fuel less committed to renewables.

我们研究了技术特征如何影响企业在生产过程中采用天然气作为替代燃料的决策。利用公司层面的数据，我们首先通过probit模型确定了采用该技术的关键驱动因素，强调了供暖设备、成本竞争力和天然气先验知识的作用。为了扩展分析，我们应用LASSO回归来纳入更广泛的预测因素，包括基础设施获取、改造成本、电力来源、环境意识和企业特征。我们的研究结果表明，靠近加氢站或再气化站与更高的采用概率密切相关，而高改造成本则表现出强烈的负相关。依赖主要电网供电供应商或熟悉可再生能源的公司不太愿意转换，这表明现有能源的可靠性或对更直接符合可再生能源承诺的技术的偏好。相反，公司层面对天然气的熟悉程度始终与采用率呈显著正相关。我们观察到，不同类型的公司在转向天然气的开放程度上存在适度的异质性，在核心业务中使用加热设备的公司中，倾向程度最高。这些研究结果强调了基础设施获取、技术知识和资金限制对工业部门向清洁燃料过渡的重要性。我们强调了“可再生能源承诺效应”，即不愿转向可再生能源承诺较少的燃料。

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引用次数: 0

Sustainable design of PV-assisted electric bus depots with charger sharing for private EVs: A case study in Istanbul, Türkiye 为私人电动汽车提供充电共享的光伏辅助电动巴士站的可持续设计：以土耳其伊斯坦布尔为例

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2025-11-03 DOI: 10.1016/j.esd.2025.101873

A. Can Duman

Transitioning public bus fleets to electric mobility requires large-scale deployment of electric bus charging stations (EBCSs) in depots. While essential for decarbonization, such infrastructure entails substantial upfront investments and grid reinforcement costs. Photovoltaic (PV) integration and smart charging strategies can help mitigate these challenges by lowering charging costs and smoothing charging demand. Another opportunity arises from idle chargers during the day, as most electric buses (EBs) rely on overnight charging. Making these chargers available to private electric vehicles (EVs) can transform depots into multifunctional charging hubs that both generate revenue and address the growing urban demand for fast charging.

This study develops an optimal configuration of a PV-assisted and charger-sharing EBCS for a bus depot in Istanbul, Türkiye. Simulations estimate the 25-year net present cost (NPC) at $24.5 million for the base case with depot-only overnight charging. Adding 2333 kW of PV with charging management reduces the NPC to $21.5 million. Expanding PV capacity to 4000 kW and enabling charger sharing with 250 private EVs per day further reduces the NPC to $10.1 million, a 58.8 % reduction. Notably, despite the addition of 250 EVs/day, peak demand remains stable (3488 kW versus 3467 kW), demonstrating that PV integration and charging management can prevent costly grid reinforcements even with added EV loads.

A cross-country comparison extends the analysis to Spain, Greece, Bulgaria, and Portugal, which have similar solar resources and electricity prices but higher EV charging fees. In these contexts, the proposed system can offset the full costs of PV and charging infrastructure, along with 25-year EB charging expenses.

The findings demonstrate that PV-assisted and charger-sharing bus depots can serve as dual-purpose infrastructure, simultaneously supporting sustainable fleet electrification and expanding urban fast-charging capacity. Given that high upfront costs remain the primary barrier to bus fleet electrification, these results offer valuable guidance for policymakers, operators, and energy planners. Furthermore, the proposed methodology is adaptable to different cities and depot configurations.

将公共巴士车队转变为电动交通需要在车站大规模部署电动巴士充电站（EBCSs）。虽然对脱碳至关重要，但这种基础设施需要大量的前期投资和电网加固成本。光伏（PV）集成和智能充电策略可以通过降低充电成本和平滑充电需求来帮助缓解这些挑战。另一个机会来自于白天空闲的充电器，因为大多数电动公交车（EBs）依赖于夜间充电。将这些充电器提供给私人电动汽车（ev）可以将仓库转变为多功能充电中心，既能产生收入，又能满足城市对快速充电日益增长的需求。本研究为土耳其伊斯坦布尔的一个公交车站开发了一个pv辅助和充电器共享的EBCS的最佳配置。模拟结果显示，仅在车场过夜充电的基本情况下，25年的净现值成本（NPC）为2450万美元。增加2333千瓦的光伏和充电管理将使NPC减少到2150万美元。将光伏发电容量扩大到4000千瓦，并允许每天250辆私人电动汽车共享充电器，进一步将NPC减少到1010万美元，减少58.8%。值得注意的是，尽管每天增加了250辆电动汽车，但峰值需求保持稳定（3488千瓦对3467千瓦），这表明即使增加了电动汽车负荷，光伏集成和充电管理也可以防止昂贵的电网加固。一项跨国比较将分析扩展到西班牙、希腊、保加利亚和葡萄牙，这些国家的太阳能资源和电价相似，但电动汽车充电费用更高。在这种情况下，拟议的系统可以抵消光伏和充电基础设施的全部成本，以及25年的电动汽车充电费用。研究结果表明，光伏辅助和充电器共享的公交车站可以作为双重用途的基础设施，同时支持可持续的车队电气化和扩大城市快速充电容量。鉴于高昂的前期成本仍然是公交车队电气化的主要障碍，这些研究结果为政策制定者、运营商和能源规划者提供了有价值的指导。此外，所提出的方法适用于不同的城市和仓库配置。

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引用次数: 0

Sustainable design of PV-assisted electric bus depots with charger sharing for private EVs: A case study in Istanbul, Türkiye 为私人电动汽车提供充电共享的光伏辅助电动巴士站的可持续设计：以土耳其伊斯坦布尔为例

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2025-11-03 DOI: 10.1016/j.esd.2025.101873

A. Can Duman

Transitioning public bus fleets to electric mobility requires large-scale deployment of electric bus charging stations (EBCSs) in depots. While essential for decarbonization, such infrastructure entails substantial upfront investments and grid reinforcement costs. Photovoltaic (PV) integration and smart charging strategies can help mitigate these challenges by lowering charging costs and smoothing charging demand. Another opportunity arises from idle chargers during the day, as most electric buses (EBs) rely on overnight charging. Making these chargers available to private electric vehicles (EVs) can transform depots into multifunctional charging hubs that both generate revenue and address the growing urban demand for fast charging.

This study develops an optimal configuration of a PV-assisted and charger-sharing EBCS for a bus depot in Istanbul, Türkiye. Simulations estimate the 25-year net present cost (NPC) at $24.5 million for the base case with depot-only overnight charging. Adding 2333 kW of PV with charging management reduces the NPC to $21.5 million. Expanding PV capacity to 4000 kW and enabling charger sharing with 250 private EVs per day further reduces the NPC to $10.1 million, a 58.8 % reduction. Notably, despite the addition of 250 EVs/day, peak demand remains stable (3488 kW versus 3467 kW), demonstrating that PV integration and charging management can prevent costly grid reinforcements even with added EV loads.

A cross-country comparison extends the analysis to Spain, Greece, Bulgaria, and Portugal, which have similar solar resources and electricity prices but higher EV charging fees. In these contexts, the proposed system can offset the full costs of PV and charging infrastructure, along with 25-year EB charging expenses.

The findings demonstrate that PV-assisted and charger-sharing bus depots can serve as dual-purpose infrastructure, simultaneously supporting sustainable fleet electrification and expanding urban fast-charging capacity. Given that high upfront costs remain the primary barrier to bus fleet electrification, these results offer valuable guidance for policymakers, operators, and energy planners. Furthermore, the proposed methodology is adaptable to different cities and depot configurations.

将公共巴士车队转变为电动交通需要在车站大规模部署电动巴士充电站（EBCSs）。虽然对脱碳至关重要，但这种基础设施需要大量的前期投资和电网加固成本。光伏（PV）集成和智能充电策略可以通过降低充电成本和平滑充电需求来帮助缓解这些挑战。另一个机会来自于白天空闲的充电器，因为大多数电动公交车（EBs）依赖于夜间充电。将这些充电器提供给私人电动汽车（ev）可以将仓库转变为多功能充电中心，既能产生收入，又能满足城市对快速充电日益增长的需求。本研究为土耳其伊斯坦布尔的一个公交车站开发了一个pv辅助和充电器共享的EBCS的最佳配置。模拟结果显示，仅在车场过夜充电的基本情况下，25年的净现值成本（NPC）为2450万美元。增加2333千瓦的光伏和充电管理将使NPC减少到2150万美元。将光伏发电容量扩大到4000千瓦，并允许每天250辆私人电动汽车共享充电器，进一步将NPC减少到1010万美元，减少58.8%。值得注意的是，尽管每天增加了250辆电动汽车，但峰值需求保持稳定（3488千瓦对3467千瓦），这表明即使增加了电动汽车负荷，光伏集成和充电管理也可以防止昂贵的电网加固。一项跨国比较将分析扩展到西班牙、希腊、保加利亚和葡萄牙，这些国家的太阳能资源和电价相似，但电动汽车充电费用更高。在这种情况下，拟议的系统可以抵消光伏和充电基础设施的全部成本，以及25年的电动汽车充电费用。研究结果表明，光伏辅助和充电器共享的公交车站可以作为双重用途的基础设施，同时支持可持续的车队电气化和扩大城市快速充电容量。鉴于高昂的前期成本仍然是公交车队电气化的主要障碍，这些研究结果为政策制定者、运营商和能源规划者提供了有价值的指导。此外，所提出的方法适用于不同的城市和仓库配置。

{"title":"Sustainable design of PV-assisted electric bus depots with charger sharing for private EVs: A case study in Istanbul, Türkiye","authors":"A. Can Duman","doi":"10.1016/j.esd.2025.101873","DOIUrl":"10.1016/j.esd.2025.101873","url":null,"abstract":"<div><div>Transitioning public bus fleets to electric mobility requires large-scale deployment of electric bus charging stations (EBCSs) in depots. While essential for decarbonization, such infrastructure entails substantial upfront investments and grid reinforcement costs. Photovoltaic (PV) integration and smart charging strategies can help mitigate these challenges by lowering charging costs and smoothing charging demand. Another opportunity arises from idle chargers during the day, as most electric buses (EBs) rely on overnight charging. Making these chargers available to private electric vehicles (EVs) can transform depots into multifunctional charging hubs that both generate revenue and address the growing urban demand for fast charging.</div><div>This study develops an optimal configuration of a PV-assisted and charger-sharing EBCS for a bus depot in Istanbul, Türkiye. Simulations estimate the 25-year net present cost (NPC) at $24.5 million for the base case with depot-only overnight charging. Adding 2333 kW of PV with charging management reduces the NPC to $21.5 million. Expanding PV capacity to 4000 kW and enabling charger sharing with 250 private EVs per day further reduces the NPC to $10.1 million, a 58.8 % reduction. Notably, despite the addition of 250 EVs/day, peak demand remains stable (3488 kW versus 3467 kW), demonstrating that PV integration and charging management can prevent costly grid reinforcements even with added EV loads.</div><div>A cross-country comparison extends the analysis to Spain, Greece, Bulgaria, and Portugal, which have similar solar resources and electricity prices but higher EV charging fees. In these contexts, the proposed system can offset the full costs of PV and charging infrastructure, along with 25-year EB charging expenses.</div><div>The findings demonstrate that PV-assisted and charger-sharing bus depots can serve as dual-purpose infrastructure, simultaneously supporting sustainable fleet electrification and expanding urban fast-charging capacity. Given that high upfront costs remain the primary barrier to bus fleet electrification, these results offer valuable guidance for policymakers, operators, and energy planners. Furthermore, the proposed methodology is adaptable to different cities and depot configurations.</div></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"89 ","pages":"Article 101873"},"PeriodicalIF":4.9,"publicationDate":"2025-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145467340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Techno-economic assessment of hydrokinetic technology: A case study 水动力技术的技术经济评价：一个案例研究

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2025-10-31 DOI: 10.1016/j.esd.2025.101872

Upendra Bajpai , Sunil Kumar Singal

Hydrokinetic energy offers significant potential to support India's goal of achieving net zero carbon emissions by 2070, as outlined at COP26. The study evaluates techno-economic viability of deploying a hydrokinetic farm along a 1 km canal in Uttarakhand, India, using helical Savonius turbines with diameters (D) of 0.25 m (case 1), 0.50 m (case 2), 0.75 m (case 3), and 1.0 m (case 4). Numerical model used in the investigation has been validated experimentally. The developed model evaluates power generation capacity and key financial indicators, including Net present value (NPV), Internal rate of return (IRR), Payback period (PP), and Levelized cost of energy (LCOE). Sensitivity analyses have been conducted using varying capital expenditure (CapEx), operation and maintenance (O&M) costs, discount rate, and electricity selling price. The optimal turbine spacing is estimated as 39D to 41D longitudinally and 6D laterally, at a flow velocity of 2.5 m/s and tip speed ratio of 0.9 for 0.25 m to 1.0 m diameter turbine. The estimated farm installed capacities are 0.40 MW, 0.42 MW, 0.41 MW, and 0.39 MW for cases 1 through 4, respectively, with larger turbines demonstrating superior economic feasibility. Case 4 emerges as the most favourable, with NPV: US$ 0.136 million, IRR: 14.16 %, PP: 6.64 years, LCOE: US$ 0.060/kWh. Sensitivity analysis highlights that CapEx and electricity price are the most influential parameters, whereas O&M cost has minimal impact. The findings suggest that with technological advancements, favourable policies, and large-scale deployment, hydrokinetic technology will become less risky and more competitive with established renewable energy technologies.

正如COP26所概述的那样，水动能为支持印度到2070年实现净零碳排放的目标提供了巨大的潜力。该研究评估了在印度北阿坎德邦沿1公里运河部署水动力农场的技术经济可行性，使用直径(D)为0.25米（案例1）、0.50米（案例2）、0.75米（案例3）和1.0米（案例4）的螺旋Savonius涡轮机。所采用的数值模型已得到实验验证。该模型评估了发电能力和主要财务指标，包括净现值（NPV）、内部收益率（IRR）、投资回收期（PP）和能源平准化成本（LCOE）。使用不同的资本支出（CapEx）、运营和维护（O&；M）成本、贴现率和电力销售价格进行了敏感性分析。对于直径为0.25 m ~ 1.0 m的涡轮，在流速为2.5 m/s，叶尖速比为0.9的条件下，涡轮纵向间距为39D ~ 41D，横向间距为6D。案例1至案例4的装机容量分别为0.40兆瓦、0.42兆瓦、0.41兆瓦和0.39兆瓦，其中较大的涡轮机显示出更好的经济可行性。案例4是最有利的，NPV: 13.6万美元，IRR: 14.16%, PP: 6.64年，LCOE: 0.060美元/千瓦时。敏感性分析表明，资本支出和电价是影响最大的参数，而运营管理成本的影响最小。研究结果表明，随着技术的进步、有利的政策和大规模部署，水动力技术将变得风险更小，与现有的可再生能源技术相比更具竞争力。

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引用次数: 0