Energy for Sustainable Development最新文献_第3页

Exploring rural mobility in indigenous contexts in Mexico: Towards the identification of local transportation alternatives 探索墨西哥土著背景下的农村流动性：对当地交通选择的识别

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2026-06-01 Epub Date: 2026-02-13 DOI: 10.1016/j.esd.2026.101962

Dante González-Pérez , Luis Bernardo López-Sosa , Saúl Leonardo Hernández-Trujillo , Juan Carlos Corral-Huacuz , Hermelinda Servín-Campuzano , Mauricio González-Avilés , Michel Rivero , Carlos A. García , Sayra Orozco

The research examines mobility in indigenous communities in Mexico, considering different stages. First, a diagnosis was conducted in four indigenous communities to understand the distances traveled, the types of vehicles used, and the reasons for mobility. Second, with the diagnostic data collected through household surveys and validated through experimental measurements, two future scenarios were modeled: a base scenario was projected for 2050 using consumption data to determine current and future energy, economic, and environmental impacts, and an alternative scenario was created to consider integrating hybrid and electric vehicles for public transportation, self-financing, and impact estimation. Finally, guidelines for developing transportation plans in Indigenous communities were outlined, considering a participatory approach. It was found that the activities requiring the longest distances traveled are related to entertainment, while those requiring the most frequent transfers are related to food supply, education, and work. Approximately 30% of the population in these communities needs motorized transportation daily, with average trips exceeding 18 km. The per-family energy demand for motorized mobility is below 5 GJ/year, and the inhabitants spend about 30% of their income on transportation services. Furthermore, annual emissions per community can reach up to 5000 t CO₂e. The scenarios proposed in this work could lead to significant energy and economic savings and emissions reductions of more than 20% considering hybrid vehicles, and more than 30% in the case of electric cars. This proposal aims to be used as a guideline for the Mexican government's public policy on sustainable mobility which could impact positively on rural communities.

这项研究考察了墨西哥土著社区的流动性，考虑了不同的阶段。首先，在四个土著社区进行了诊断，以了解行进的距离、使用的车辆类型和移动的原因。其次，利用通过家庭调查收集的诊断数据并通过实验测量进行验证，建立了两种未来情景模型：利用消费数据预测2050年的基本情景，以确定当前和未来的能源、经济和环境影响；创建了另一种情景，考虑混合动力和电动汽车在公共交通、自筹资金和影响评估方面的整合。最后，考虑到参与性办法，概述了在土著社区制定运输计划的准则。研究发现，需要旅行最远距离的活动与娱乐有关，而需要最频繁转移的活动与食物供应、教育和工作有关。这些社区约30%的人口每天需要机动交通，平均行程超过18公里。机动交通的每个家庭能源需求低于5吉焦/年，居民将其收入的30%用于交通服务。此外，每个社区的年排放量可达5000吨二氧化碳当量。在这项工作中提出的方案可能导致显著的能源和经济节约和排放减少超过20%的混合动力汽车，超过30%的电动汽车的情况下。该提案旨在作为墨西哥政府可持续交通公共政策的指导方针，对农村社区产生积极影响。

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引用次数: 0

A seasonal inventory of household fuel consumption and associated emissions using digital methods in Eastern Rwanda 卢旺达东部使用数字方法对家庭燃料消耗和相关排放进行季节性清查

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2026-06-01 Epub Date: 2026-02-11 DOI: 10.1016/j.esd.2026.101951

Valens Uwizeyimana , Jean Bosco Nkurikiye , Jean Aime Ruticumugambi , Julienne Gatesi , Athanase Mukuralinda , Olivier Lefebvre , Elias Nelly Bapfakurera , Rosine Isimbi , Maurice Mugabowindekwe , Nordica MacCarty , Bruno Verbist , Bart Muys

Around 2.3 billion people globally rely on biomass for cooking, contributing to severe health, environmental, and climate challenges, with household air pollution responsible for over 4 million deaths each year. This widespread dependence underscores the urgent need for accurate measurement of biomass consumption and associated emissions. The primary objective of this study is to enhance the understanding of household biomass energy use by quantifying the contributions of woody biomass and crop residues, examining seasonal consumption patterns, and estimating the resultant CO₂e emissions. The study's novelty lies in its application of a digital, sensor-based system to continuously and accurately monitor biomass consumption across 420 households in Eastern Rwanda, conducted over three agricultural seasons. This approach generates high-resolution, region-specific data on the utilization of firewood, crop residues, and charcoal, while directly linking consumption patterns to CO₂e emissions. The findings indicate that firewood accounts for 86% of the total biomass used for cooking, followed by crop residues at 13% and charcoal at 0.8%. The estimated daily household consumption amounts to 3.1 kg of firewood, 0.47 kg of crop residues, and 0.03 kg of charcoal. The relatively high amount of crop residue suggests a chronic shortage of firewood, despite the intensive tree-planting campaigns. Firewood consumption remained stable during season A (short rainy) and season B (rainy), with a slight decrease in season C (dry). Crop residues decreased steadily from Season A to B, and further to C. The estimated annual CO_2e emission from biomass combustion is 1.32 tons per household and 0.48 tons per capita. Digital methods provide precise, time-resolved data on fuel types and consumption, offering valuable insights for energy planning and carbon financing. Future research should integrate PM₂.₅ emissions to better assess health impacts and determine the sustainable balance between using crop residues as fuel and returning them to the soil.

全球约有23亿人依靠生物质烹饪，这给健康、环境和气候带来了严重挑战，家庭空气污染每年造成400多万人死亡。这种广泛的依赖强调了精确测量生物质消耗和相关排放的迫切需要。本研究的主要目的是通过量化木质生物质和作物残茬的贡献，研究季节性消费模式，并估计由此产生的二氧化碳排放量，从而提高对家庭生物质能利用的认识。这项研究的新颖之处在于，它应用了一个基于传感器的数字系统，连续准确地监测卢旺达东部420户家庭在三个农业季节中的生物质消耗情况。这种方法可以生成关于木柴、作物秸秆和木炭利用情况的高分辨率区域特定数据，同时将消费模式与二氧化碳排放直接联系起来。研究结果表明，木柴占用于烹饪的总生物质的86%，其次是作物残留物，占13%，木炭占0.8%。据估计，家庭每天消耗的木柴为3.1公斤，农作物残茬为0.47公斤，木炭为0.03公斤。尽管开展了密集的植树运动，但相对较高的作物残留物表明长期缺乏木柴。A季（短雨季）和B季（多雨季）柴火消费量保持稳定，C季（干旱季）柴火消费量略有下降。从A季到B季，作物残茬逐渐减少，并进一步减少到c季。估计每年生物质燃烧产生的二氧化碳当量排放量为每户1.32吨，人均0.48吨。数字方法提供了关于燃料类型和消耗的精确的、时间分辨的数据，为能源规划和碳融资提供了有价值的见解。未来的研究应该整合PM₂。₅排放，以更好地评估对健康的影响，并确定使用作物残留物作为燃料和将其返回土壤之间的可持续平衡。

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引用次数: 0

Long-term performance evaluation of solar PV power plants: The case of a 5 MWp plant at NTPC Dadri in India 太阳能光伏电站的长期性能评估：以印度NTPC达德里的5兆瓦电站为例

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2026-06-01 Epub Date: 2026-01-29 DOI: 10.1016/j.esd.2026.101944

Pranay Prasoon , Debajit Palit , Sandeep Kumar

The study conducts performance evaluation of a 5 MWp grid-connected solar photovoltaic (PV) power plant commissioned by NTPC Limited in Dadri, India. The plant is among the earliest large-scale solar power installations in India, established in 2013, under Phase I of the Jawaharlal Nehru National Solar Mission. The plant site receives an annual average solar irradiation of 4.59 kWh/m²/day and experiences an annual mean temperature of approximately 25.13 °C. This study thoroughly assesses the operational performance of the plant, considering both controllable and non-controllable factors influencing the plant operation, using data monitored during the financial year 2022–23. This is a pioneering study assessing the performance of a national grid-connected, megawatt scale solar power plant in India that has completed a decade of operation. The evaluation was carried out in accordance with IEC 61724 standard guidelines for performance evaluation supplemented by analysis of relevant secondary research literature. Based on an annual average reference yield of 4.59 h/day, the array yield and final yield were determined to be 3.62 h/day and 3.29 h/day, respectively. The findings reveal that annual performance ratio of the solar power plant stands at approximately 0.72 with an average annual gross AC energy production of 6282.78 MWh. PVsyst simulations were also performed to validate the observed results, identify deviations, and analyze key performance parameters. The findings indicate that the measured performance closely aligns with PVsyst simulation outcomes, albeit with potential for further improvement. The study underscores the importance of accurate solar insolation estimation in the design and performance forecasting of solar PV plants. Despite some practical constraints related to data continuity, data logging practices, and PV module representation in the simulations, the insights derived from this study not only contributes to the broader discourse on the efficient integration of solar energy into the national grid for optimum results but also offer practical implications for policy makers, energy sector researchers and investors for future solar PV deployments in India and global South countries striving towards a sustainable energy future.

该研究对位于印度达德里的NTPC有限公司委托的5mwp并网太阳能光伏（PV）发电厂进行了性能评估。该厂是印度最早的大型太阳能发电装置之一，于2013年建成，是贾瓦哈拉尔·尼赫鲁国家太阳能计划的一期工程。厂区年平均太阳辐照量为4.59 kWh/m2/天，年平均温度约为25.13°C。本研究使用2022-23财政年度监测的数据，全面评估了工厂的运营绩效，考虑了影响工厂运营的可控和非可控因素。这是一项开创性的研究，评估了印度一个国家电网连接的兆瓦级太阳能发电厂的性能，该发电厂已经运行了10年。评价按照IEC 61724性能评价标准导则进行，并辅以相关二次研究文献的分析。以年平均参考产量4.59 h/day为基准，确定阵列产量为3.62 h/day，最终产量为3.29 h/day。研究结果表明，该太阳能发电厂的年性能比约为0.72，年平均交流总发电量为6282.78兆瓦时。还进行了PVsyst模拟，以验证观察结果、识别偏差并分析关键性能参数。研究结果表明，测量的性能与PVsyst模拟结果密切相关，尽管有进一步改进的潜力。该研究强调了准确的太阳日照估算在太阳能光伏电站设计和性能预测中的重要性。尽管在模拟中存在一些与数据连续性、数据记录实践和光伏模块表示相关的实际限制，但本研究得出的见解不仅有助于更广泛地讨论将太阳能有效整合到国家电网中以获得最佳结果，而且还为政策制定者提供了实际意义。为印度和全球南方国家未来太阳能光伏部署的研究人员和投资者，努力实现可持续能源的未来。

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引用次数: 0

Biogas generation potential and greenhouse gas emission saving potential from livestock manure: A state-level analysis for India 牲畜粪便产生沼气的潜力和减少温室气体排放的潜力：印度邦一级的分析

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2026-06-01 Epub Date: 2026-02-12 DOI: 10.1016/j.esd.2026.101960

Banafsha Ahmed , Vandit Vijay

India has a huge livestock population, and its waste is underutilized, leading to >1.4 billion tons CO₂eq. emissions. Lack of focus on livestock waste, an overlooked yet significant resource for energy calls for timely and comprehensive analysis/updation of its resource availability and its' bio-energy generation potential which could help in planning and implementation for its utilization. Therefore, a novel study considering the utilization of different livestock category waste for bioenergy production in India at a regional level, for multiple bio-energy pathways (biogas, power, compressed biogas (CBG) and fuelwood/Liquified Petroleum Gas (LPG) replacement) and for the two latest censuses (2012 & 2019) has been conducted, along with estimation of its GHG emission reduction potential. The analysed annual biogas generation potential (2012 and 2019 respectively): 31,603 and 33,689 Mm³, power generation, CBG generation, and LPG/fuelwood replacement potential for 2019: 7122 MW, 13,475 M.kg, 15,834/1,34,756 M.kg, respectively. The estimated annual emission saving potential from biogas for power vis-à-vis coal: 23.32 metric million ton(MMT) CO₂eq., CBG vis-à-vis petrol/diesel ∼445 MMT CO₂eq., and for cooking vis-à-vis LPG/fuelwood: 55.42/704.53 MMT CO₂eq. Biogas derived from livestock manure has the potential to annually replace 4% of coal in power generation, 20% of LPG in cooking, and produce CBG potential about twice that of India's Compressed Natural Gas (CNG) use. The study offers accessible insights on livestock waste availability, energy potential, and emissions savings in India using the latest census data. The methodology/findings can help academics policymakers, and industries in shaping renewable energy and net-zero strategies in India and other developing/underdeveloped countries with large livestock populations.

印度有大量的牲畜，其废物未得到充分利用，导致14亿吨二氧化碳当量。排放。畜禽废物是一种被忽视但重要的能源资源，由于缺乏对这一资源的重视，需要及时和全面地分析/更新其可利用资源及其生物能源生产潜力，从而有助于规划和实施其利用。因此，一项新的研究考虑了印度在区域一级利用不同牲畜类别的废物进行生物能源生产，用于多种生物能源途径（沼气、电力、压缩沼气（CBG）和薪柴/液化石油气（LPG）替代），并进行了两次最新人口普查（2012 & 2019），同时对其温室气体减排潜力进行了估计。分析的年度沼气发电潜力（分别为2012年和2019年）：31,603和33,689 Mm3, 2019年的发电，CBG发电和液化石油气/薪柴替代潜力分别为7122 MW， 13,475 M.kg, 15,834/1,34,756 M.kg。与-à-vis煤相比，沼气发电的估计年减排潜力：2332公吨（MMT）二氧化碳当量。， CBG vs -à-vis汽油/柴油~ 4.45 MMT CO2eq。液化石油气/薪材：55.42/704.53 MMT co2当量。从牲畜粪便中提取的沼气每年有可能取代4%的燃煤发电，20%的液化石油气用于烹饪，并且产生的CBG潜力约为印度压缩天然气（CNG）使用量的两倍。该研究利用最新的人口普查数据，对印度的牲畜废物可用性、能源潜力和减排提供了易于理解的见解。该方法/发现可以帮助学术界、政策制定者和工业界在印度和其他拥有大量牲畜的发展中/不发达国家制定可再生能源和净零战略。

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引用次数: 0

Time-resolved co-fermentation dynamics: Optimizing fermentation time for energy-efficient lignocellulosic ethanol production from oil palm empty fruit bunches 时间分辨共发酵动力学：优化从油棕空果束生产节能木质纤维素乙醇的发酵时间

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2026-06-01 Epub Date: 2026-01-02 DOI: 10.1016/j.esd.2025.101922

Yitong Niu , Yan Wang , Natra Joseph , Ajijolakewu Kamoldeen Abiodun , Cheu Peng Leh , Chee Keong Lee

Fermentation duration critically shapes microbial performance and energy use in lignocellulosic ethanol. This study explores the time course of simultaneous saccharification and co-fermentation (SSCF) by Saccharomyces cerevisiae (ATCC 200062) and Scheffersomyces stipitis (ATCC 58785) using alkali-pretreated oil-palm empty fruit bunches (EFB). A Rotating Centre Composite Design was applied, with the central point positioned at the midpoint of the experimental factors. A total of 20 experimental runs were generated, covering the following ranges: NaOH concentration (1–3 %), temperature (100–140 °C), and reaction time (40–80 min). Time-resolved curves show that, under most conditions, ethanol production plateaus around 89 h, with only a small additional increase by 120 h; glucose is the main driver of early ethanol production, while xylose residue depends on specific conditions, and energy consumption increases linearly over time. Using responses at 89 h, NaOH loading emerges as the dominant pretreatment factor, and a moderate-severity region near ∼2 % NaOH, ∼120 °C, and ∼ 60 min balances solid recovery, fermentability, and energy-normalized productivity (ENP). Therefore, it is recommended to use approximately 89 h as the fermentation endpoint, along with a moderately alkaline pretreatment method, to balance ethanol yield and energy efficiency. This study establishes an energy-based optimized production framework for fermentation time and pretreatment conditions in lignocellulosic ethanol production, thereby guiding the efficient production of industrial bioethanol.

发酵持续时间对木质纤维素乙醇的微生物性能和能量使用有重要影响。以碱预处理的油棕空果束为原料，研究了酿酒酵母（Saccharomyces cerevisiae, ATCC 200062）和树舍酵母（Scheffersomyces stipitis, ATCC 58785）同时糖化和共发酵（SSCF）的时间过程。采用旋转中心复合设计，中心点位于试验因子的中点。共进行了20次实验，实验范围为：NaOH浓度（1 - 3%），温度（100-140℃），反应时间（40-80 min）。时间分辨曲线显示，在大多数条件下，乙醇产量在89 h左右趋于稳定，仅增加120 h；葡萄糖是早期乙醇生产的主要驱动力，而木糖残留物取决于特定条件，能量消耗随时间线性增加。在89 h的响应中，NaOH负荷成为主要的预处理因素，在接近~ 2% NaOH、~ 120°C和~ 60 min的中等强度区域平衡固体回收率、发酵性和能量标准化生产率（ENP）。因此，建议使用约89 h作为发酵终点，同时采用适度碱性预处理方法，以平衡乙醇产量和能量效率。本研究建立了以能量为基础的木质纤维素乙醇发酵时间和预处理条件优化生产框架，从而指导工业生物乙醇的高效生产。

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引用次数: 0

Unlocking India's $200 billion electric vehicle opportunity: State policies, grid decarbonization, and machine learning insights for sustainable development 解锁印度价值2000亿美元的电动汽车机遇：国家政策、电网脱碳和可持续发展的机器学习见解

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2026-06-01 Epub Date: 2026-02-09 DOI: 10.1016/j.esd.2026.101946

Yash Modi , M.J. Mungla , Suketu Jani

India aims to support the clean-energy transition and improve air-quality by focusing on electric mobility. Nevertheless, such an adoption is uneven across states due to variations in electricity generation mix, tariff design, policy support, and public-charging infrastructure availability. This study constructs a state-resolved techno-economic-environmental model to compare electric two-wheelers, three-wheelers, four-wheelers and intra-city buses using representative vehicles and harmonized data on grid emission intensity, electricity prices, policy support and fleet usage. Total cost of ownership and lifecycle greenhouse-gas emissions are estimated using deterministic modelling combined with Monte Carlo uncertainty propagation and sensitivity analysis. Machine learning is used to determine the main drivers of adoption and forecast adoption trajectories across states. It is found that electric two-wheelers and three-wheelers deliver universal cost and emissions advantages, and four-wheelers and e-buses are cost-competitive in policy-supportive and tariff-efficient states, with lifecycle CO₂ reductions of 35–90% relative to ICE. The three factors that influence the policy effectiveness the most are battery economics, tariff structures, and high-utilization fleet segments. In the absence of co-ordinated interventions, economic opportunity will be concentrated within a few states that lead first. The framework aids specific investment planning aligned with Sustainable Development Goals 7 (ensuring access to affordable, reliable, sustainable, and modern energy for all) and 11 (making cities and human settlements inclusive, safe, resilient, and sustainable) and provides insights that can be transferred to emerging economies aiming to attain an equitable, low-carbon mobility transition.

印度的目标是支持清洁能源转型，并通过专注于电动交通来改善空气质量。然而，由于发电组合、电价设计、政策支持和公共充电基础设施的可用性等方面的差异，这种采用在各州之间是不平衡的。本研究构建了一个国家解决的技术-经济-环境模型，利用代表性车辆和统一的电网排放强度、电价、政策支持和车队使用数据，对电动两轮车、三轮车、四轮车和城市公交车进行比较。利用确定性模型结合蒙特卡罗不确定性传播和敏感性分析估算了总拥有成本和生命周期温室气体排放量。机器学习用于确定采用的主要驱动因素，并预测各州的采用轨迹。研究发现，电动两轮车和三轮车具有普遍的成本和排放优势，而四轮车和电动公交车在政策支持和关税高效的州具有成本竞争力，其生命周期二氧化碳排放量相对于内燃机减少35-90%。影响政策有效性最大的三个因素是电池经济性、关税结构和高利用率车队。在缺乏协调干预的情况下，经济机会将集中在几个领先的国家。该框架有助于与可持续发展目标7（确保所有人获得负担得起的、可靠的、可持续的现代能源）和目标11（使城市和人类住区具有包容性、安全性、韧性和可持续性）相一致的具体投资规划，并为旨在实现公平、低碳交通转型的新兴经济体提供见解。

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引用次数: 0

Optimized deployment of carbon capture, utilization, and storage (CCUS) in China's cement industry: A scenario-based analysis 中国水泥行业碳捕集、利用与封存（CCUS）的优化部署：基于场景的分析

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2026-06-01 Epub Date: 2026-02-13 DOI: 10.1016/j.esd.2026.101948

Peng-Tao Wang , Xiao-Ya Liang , Fei-Yin Wang , Mao Xu

To promote deep decarbonization in the cement industry, achieving China's “dual carbon” goals necessitates large-scale carbon emission reductions in this sector. Carbon Capture, Utilization, and Storage (CCUS) technology is considered a key solution for such reductions. However, empirical studies on CCUS deployment in the cement industry remain limited. In order to achieve this, the study set three core target scenarios for overall emissions reductions in China's cement industry: 40%, 50%, and 60%. Following a thorough screening and evaluation of 2651 cement plants nationwide, a full-process CCUS source-sink matching optimisation model was constructed to determine the optimal deployment strategy under each emissions reduction scenario. The results indicate that meeting these targets requires a large-scale deployment, involving the retrofitting of over 400 to 500 cement plants. The model estimates the corresponding unit abatement costs to be in the range of approximately 320 to 380 CNY/t CO₂. Regional analysis revealed that the northeast has the lowest abatement costs, while the southwest incurs the highest. These findings suggest that differentiated development strategies should be formulated based on regional source-sink distribution and that cross-regional CCUS cooperation is essential to facilitate low-carbon transformation in the cement industry. This study provides valuable insights for early-stage screening of suitable cement plants for CCUS retrofitting in China.

为了促进水泥行业的深度脱碳，实现中国的“双碳”目标，需要大规模减少该行业的碳排放。碳捕获、利用和封存（CCUS）技术被认为是这类减排的关键解决方案。然而，关于CCUS在水泥行业部署的实证研究仍然有限。为了实现这一目标，该研究为中国水泥行业的总体减排设定了三个核心目标情景：40%、50%和60%。通过对全国2651家水泥厂的全面筛选和评估，构建了CCUS全流程源汇匹配优化模型，确定了各减排情景下CCUS的最优部署策略。结果表明，要实现这些目标，需要大规模部署，包括改造400至500多家水泥厂。该模型估计，相应的单位减排成本约为每吨二氧化碳320至380元人民币。区域分析显示，东北地区的减排成本最低，而西南地区的减排成本最高。研究结果表明，应根据区域源汇分布制定差异化发展战略，跨区域CCUS合作对促进水泥行业低碳转型至关重要。本研究为早期筛选适合中国CCUS改造的水泥厂提供了有价值的见解。

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引用次数: 0

Spatial modeling of cooking energy mixes: The case of West Africa 烹饪能源混合的空间模型：以西非为例

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2026-06-01 Epub Date: 2026-02-06 DOI: 10.1016/j.esd.2026.101943

Théo Chamarande, Benjamin Pillot

Cooking is one of the basic human needs that requires energy. Solid biomass is currently the main energy source for more than 2 billion people worldwide. In West Africa, biomass is used by 85% of the population. Modeling cooking scenarios helps understanding current energy mixes and potential paths to increase their sustainability. This study proposes a spatial model that optimizes the cost or carbon footprint of cooking a meal based on local resource availability (biomass, solar energy). We illustrate this method on three countries : Senegal, Niger and Côte d’Ivoire, but it can easily be applied to other regions or countries. The goal of this article is not to advocate for an optimal cooking energy mix, but rather to identify the main drivers of such a mix and to evaluate the effectiveness of potential public policies to enhance it. Our results highlight the strong potential for solar cooking in the Sahel, the low relevance of current electric cooking, and the major role played by traditional biomass. We also analyze how sensitive are the results of cooking optimization models to modeling assumptions, especially regarding biomass characterization.

烹饪是人类需要能量的基本需求之一。固体生物质目前是全世界20多亿人的主要能源。在西非，85%的人口使用生物质能。模拟烹饪场景有助于了解当前的能源组合和潜在的途径，以提高其可持续性。本研究提出了一个空间模型，该模型基于当地资源的可用性（生物质能、太阳能）来优化烹饪一顿饭的成本或碳足迹。我们以塞内加尔、尼日尔和Côte科特迪瓦这三个国家为例说明了这种方法，但它很容易适用于其他地区或国家。本文的目的不是提倡最佳的烹饪能源组合，而是确定这种组合的主要驱动因素，并评估潜在的公共政策的有效性，以加强它。我们的研究结果强调了太阳能烹饪在萨赫勒地区的巨大潜力，当前电烹饪的相关性较低，以及传统生物质的主要作用。我们还分析了烹饪优化模型的结果对建模假设的敏感性，特别是关于生物质表征。

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引用次数: 0

Spatial assessment of bioenergy potentials for small biogas digesters and pyrolysis cookstoves: A case study in Togo 小型沼气池和热解炉灶生物能源潜力的空间评价：以多哥为例

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2026-06-01 Epub Date: 2026-02-09 DOI: 10.1016/j.esd.2026.101959

Fabian Sittaro , Nils Engler , Dennis Krüger , Komi Agboka , Sebastian Semella , Friederike Naegeli de Torres

Biomass, primarily firewood and charcoal, dominates the energy landscape in Western Africa, driving deforestation, ecosystem degradation and adverse health outcomes. This study presents a comprehensive spatial assessment of the bioenergy potential of small-scale biogas digesters and pyrolysis cookstoves in Togo, addressing the urgent need for sustainable alternatives to traditional wood fuels. Using agricultural residues as feedstock for decentralised bioenergy systems could mitigate these impacts and help to achieve SDGs 7 (affordable and clean energy) and 13 (climate action). Using FAOSTAT and CROPGRIDS data, we mapped the spatial distribution and production volume of the most significant crop residues at high resolution. Residues were categorized by structure and composition in order to estimate biomethane yields and their compatibility with small-scale digesters or cookstoves. Deforestation priority regions were delineated using forest loss data derived from Landsat, enabling targeted analysis of bioenergy deployment in the most affected areas. Theoretical potential was calculated for small-scale digesters (5–15 m³) and household cookstoves based on local residue availability. Additional site-specific assessments were conducted for large-scale anaerobic digestion at over 50 poultry farms. Results reveal substantial and spatially variable bioenergy resources, particularly in regions experiencing severe deforestation. We estimate a theoretical potential of up to 720,000 small-scale biogas digesters (5 m³ capacity) and 480,000 cookstoves, demonstrating the technical feasibility of replacing traditional fuels with agricultural residues. This spatially explicit approach provides a framework for decision-making to scale up sustainable bioenergy solutions in Togo and similar contexts, thus mitigating deforestation, lower greenhouse gas emissions and improving rural livelihoods.

生物质，主要是木柴和木炭，主导着西非的能源格局，导致森林砍伐、生态系统退化和不利的健康后果。本研究对多哥小型沼气池和热解炉灶的生物能源潜力进行了全面的空间评估，解决了对传统木材燃料可持续替代品的迫切需求。使用农业残留物作为分散式生物能源系统的原料可以减轻这些影响，并有助于实现可持续发展目标7（负担得起的清洁能源）和13（气候行动）。利用FAOSTAT和CROPGRIDS数据，我们以高分辨率绘制了最重要作物残留物的空间分布和产量。根据残留物的结构和组成进行分类，以估计生物甲烷的产量及其与小型沼气池或炉灶的相容性。利用来自Landsat的森林损失数据划定了毁林重点区域，从而能够对受影响最严重地区的生物能源部署进行有针对性的分析。计算了小型沼气池（5-15立方米）和家用炉灶的理论潜力，这是基于当地残渣的可用性。对50多个家禽养殖场的大规模厌氧消化进行了额外的具体地点评估。研究结果显示，生物能源资源丰富且具有空间差异性，特别是在森林砍伐严重的地区。我们估计，理论上可能有多达72万个小型沼气池（容量为5立方米）和48万个炉灶，这表明用农业残留物替代传统燃料在技术上是可行的。这种空间上明确的方法为在多哥和类似情况下扩大可持续生物能源解决方案的决策提供了一个框架，从而减轻森林砍伐、降低温室气体排放和改善农村生计。

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引用次数: 0

Optimising solar energy project bankability through stakeholder engagement: A case of Mauritius 通过利益相关者参与优化太阳能项目的可融资性：以毛里求斯为例

IF 4.9 2区工程技术 Q2 ENERGY & FUELS

Energy for Sustainable Development

Pub Date : 2026-06-01 Epub Date: 2026-01-12 DOI: 10.1016/j.esd.2026.101924

Chandrika Ramiah , Yatindra Kumar Ramgolam , Vimi Dookhun , Riad Sultan

The bankability of solar photovoltaic (PV) projects remains a critical barrier to scaling renewable energy in Small Island Developing States (SIDS). This study examines how stakeholder dynamics influence the viability of PV investments in Mauritius across the project lifecycle. A mixed-methods approach, combining social network analysis, power-interest mapping, and interviews, is applied to identify and assess stakeholder roles. Findings highlight a fragmented but interdependent ecosystem. Regulatory authorities, notably the Ministry of Energy and Public Utilities and the Ministry of Housing and Land Use, hold significant influence yet remain weakly engaged in project-level financial concerns. The Central Electricity Board emerges as a pivotal actor, balancing technical oversight with financial control, while Independent Power Producers and prosumers contribute to decentralisation but lack policy leverage. Peripheral actors, including financiers and suppliers, enable compliance but exert limited impact on investment decisions. These asymmetries undermine risk mitigation and investor confidence. The results underscore the value of structured and inclusive stakeholder engagement, with social network analysis providing a diagnostic tool to strengthen collaboration. The study offers policy-relevant insights to improve PV project bankability in Mauritius and provides a replicable framework for other island economies pursuing renewable energy transitions.

太阳能光伏项目的可融资性仍然是小岛屿发展中国家扩大可再生能源规模的一个关键障碍。本研究考察了利益相关者动态如何影响毛里求斯整个项目生命周期的光伏投资可行性。结合社会网络分析、权力-利益映射和访谈，采用混合方法来识别和评估利益相关者的角色。研究结果强调了一个支离破碎但相互依存的生态系统。监管部门，特别是能源和公用事业部和住房和土地使用部，拥有重大影响力，但在项目层面的财务问题上仍然参与不足。中央电力局（Central Electricity Board）成为一个关键角色，在技术监督和财务控制之间取得平衡，而独立电力生产商和消费企业有助于权力下放，但缺乏政策杠杆。外围行为者，包括融资者和供应商，使合规得以实现，但对投资决策的影响有限。这些不对称破坏了风险缓解和投资者信心。研究结果强调了结构化和包容性利益相关者参与的价值，社会网络分析为加强合作提供了一种诊断工具。该研究为提高毛里求斯光伏项目的可融资性提供了与政策相关的见解，并为其他寻求可再生能源转型的岛屿经济体提供了可复制的框架。

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引用次数: 0