☆ 4.7 Article

Optimisation of community shared solar application in energy efficient communities

SUSTAINABLE CITIES AND SOCIETY (2018)

Journal

SUSTAINABLE CITIES AND SOCIETY

Volume 43, Issue -, Pages 221-237

Publisher

ELSEVIER

DOI: 10.1016/j.scs.2018.08.029

Keywords

Community shared solar; Load-match-driven design; Monte Carlo simulation; Solar PV optimisation; Long-term monitoring; Energy-efficient community simulation

Categories

Construction & Building Technology Green & Sustainable Science & Technology Energy & Fuels

Funding

University of Alberta [CRDPJ 461824-14]
Natural Sciences and Engineering Research Council of Canada (NSERC)
Landmark Group of Companies

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Abstract

Integration of solar photovoltaic (PV) micro-generation into residential buildings is emerging rapidly as an effective method for mitigating the impact of housing on greenhouse gas (GHG) emissions. However, PV microgeneration is confronted with several challenges: (a) the average self-consumption does not exceed 25% in cold-climate regions; and (b) most of the generated energy during daytime is exported to the grid at a lower monetary rate per unit than that of imported energy. Governments and authorities envision the value of considering the integration of renewables at the community level since this strategy can leverage self-consumption and increase its social impacts and economics. This research aims to develop a systematic framework that simulates and optimises community shared solar. The performance scenarios of two sustainable communities are simulated and presented as case studies. In the first scenario, each unit is connected to a small PV system. In the second scenario, all units are connected to a large PV system. Evidence-based Monte Carlo simulation is applied to ensure the stochasticity of the diverse household users. It is concluded that the community shared solar application is preferred over individual rooftop applications as the former secures the uniform distribution of generated electricity among the community members.

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Achieving coordinated development of multi-functional urban agriculture in Xiamen, China

Shangshang Shen, Dan Yan, Xiaojie Liu

Summary: This study developed a comprehensive theoretical framework for evaluating, diagnosing, and optimizing multi-functional urban agriculture. The framework was applied in Xiamen, China to identify the obstacles that impede its coordinated development and propose optimized modes for its development. Results showed that urban agriculture in Xiamen exhibits sound social function, moderate economic function, and poor ecological function.

SUSTAINABLE CITIES AND SOCIETY (2024)

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Article Construction & Building Technology

Land surface dynamics and meteorological forcings modulate land surface temperature characteristics

Oluwafemi E. Adeyeri, Akinleye H. Folorunsho, Kayode I. Ayegbusi, Vishal Bobde, Tolulope E. Adeliyi, Christopher E. Ndehedehe, Akintomide A. Akinsanola

Summary: This study examines the impact of land cover, vegetation health, climatic forcings, elevation heat loads, and terrain characteristics on land surface temperature distribution over West Africa. The random forest model performs the best in downscaling predictands. The southern regions consistently exhibit healthy vegetation, while areas with unhealthy vegetation coincide with hot land surface temperature clusters. Positive Normalized Difference Vegetation Index trends in the Sahel highlight rainfall recovery and subsequent greening. Southwest winds cause the upwelling of cold waters, resulting in low land surface temperatures in southern West Africa. Considering LVCET factors is crucial for prioritizing greening initiatives and urban planning.

SUSTAINABLE CITIES AND SOCIETY (2024)

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Article Construction & Building Technology

Mapping urban green equity and analysing its impacted mechanisms: A novel approach

Yuchi Cao, Yan Li, Shouyun Shen, Weiwei Wang, Xiao Peng, Jiaao Chen, Jingpeng Liao, Xinyi Lv, Yifan Liu, Lehan Ma, Guodian Hu, Jinghuan Jiang, Dan Sun, Qingchu Jiang, Qiulin Liao

Summary: The study reveals significant disparities in urban green equity, with high property price areas having better access to green spaces than low property price areas. Landscape and greening have the most significant impact on urban green space differentiation.

SUSTAINABLE CITIES AND SOCIETY (2024)

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Article Construction & Building Technology

Impacts of humidity measurement uncertainties and an uncertainty-tolerant economizer control strategy for air-conditioning systems

Shaobo Sun, Kui Shan, Shengwei Wang

Summary: Economizer control is an important measure for energy savings in air-conditioning systems during moderate seasons. Humidity measurement uncertainties have a significant impact on enthalpy-based economizer control, and an uncertainty-tolerant control strategy is proposed to mitigate these effects.

SUSTAINABLE CITIES AND SOCIETY (2024)

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Article Construction & Building Technology

Understanding District Heating Networks Vulnerability: A Comprehensive Analytical Approach with Controllability Consideration

Ding Mao, Peng Wang, Yi-Ping Fang, Long Ni

Summary: This study analyzes the structure, function, operation, and failure characteristics of district heating networks (DHNs) and proposes vulnerability analysis methods. The effectiveness of these methods is validated through application to a DHN in a Chinese city. The study finds that the heat source connectivity efficiency loss rate effectively characterizes topological and functional vulnerability. It also reveals that controllable DHNs have higher functional vulnerability under large area failure scenarios.

SUSTAINABLE CITIES AND SOCIETY (2024)

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Article Construction & Building Technology

Cooperative scheduling and trading in sustainable water-integrated and networked energy systems incorporating power-to-gas

Hamid Karimi, Saeed Hasanzadeh, Hedayat Saboori

Summary: This paper presents a stochastic and cooperative approach for the operation of a cluster of interconnected multi-energy systems. The proposed model investigates the interaction among energy systems and integrates hydrogen and water systems into the overall energy structure. The model studies the performance of energy system agents in decentralized and cooperative scheduling.

SUSTAINABLE CITIES AND SOCIETY (2024)

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Article Construction & Building Technology

Achieving fine-grained urban flood perception and spatio-temporal evolution analysis based on social media

Zhiyu Yan, Xiaogang Guo, Zilong Zhao, Luliang Tang

Summary: This study proposes a novel framework for fine-grained information extraction and dynamic spatial-temporal awareness in disaster-stricken areas based on social media data. The framework utilizes deep learning modules to extract location and water depth information from text and images, and analyzes the spatio-temporal distribution characteristics. The results show that the fusion of text and image-based information can enhance the perception of flood processes.

SUSTAINABLE CITIES AND SOCIETY (2024)

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Article Construction & Building Technology

Theoretical cost and energy optimisation of a 4th generation net-zero district heating system with different thermal energy storage technologies.

M. A. Pans, G. Claudio, P. C. Eames

Summary: This study simulated and optimized a speculative district heating system in an existing urban area in Loughborough, UK. The system used only renewable heat sources and thermal energy storage to address the mismatch between heat generation and demand. The study assessed the impact of long-term storage volume and charging temperature on system cost and energy efficiency.

SUSTAINABLE CITIES AND SOCIETY (2024)

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Article Construction & Building Technology

Study on Airflow Distribution and Energy Conservation in a BSL-4 Laboratory Involved in Aerosol Infection Risk

Jianmei Zhong, Wei Zhang, Xiaoli Wang, Jinsheng Zhan, Tao Xia, Lingzhi Xie, Xiding Zeng, Kun Yang, Zhangyu Li, Ruiwen Zou, Zepu Bai, Qing Wang, Chenyang Zhang

Summary: This study aims to propose a suitable air distribution design and reduce the energy consumption of the BSL-4 laboratory. It analyzes the diffusion characteristics of aerosols, infection risk under different air distributions, and ventilation parameters. The results show that the proposed energy-saving operation strategy can reduce the energy consumption of the laboratory by 15-30%.

SUSTAINABLE CITIES AND SOCIETY (2024)

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