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The potential widespread adoption of Electric Vehicles (EVs) has received considerable attention across the globe. However, as a promising technology for both EVs and smart grid, Vehicle-to-Grid (V2G) tended to receive much less attention. This paper developed an agent-based joint EV and V2G model to simultaneously simulate how EVs and V2G might diffuse across space and over time, with empirical findings from a questionnaire survey in Beijing. In particular, random forest models were developed with the survey data to generate each agent’s preferences and attitudes towards EVs and V2G. The joint model also considered three typical levels of social influence, i.e., global influence, neighbor effect, and friendship effect, in the diffusion of EVs and V2G. Finally, the joint model was tested through several “what-if” scenarios, considering different V2G prices, EV/V2G advertisement intensities, and vehicle purchase restrictions. The survey results suggested that 67.7% of the respondents were familiar with EVs, but only 3.3% of them were familiar with V2G. However, over 70% of them would/might try V2G given that they had an EV. The model results suggested that the number of CV applicants was 6.19 times that of BEV applicants in 2030 in the baseline scenario, and only 27.8% of BEV users adopted V2G. Furthermore, V2G selling price, EV/V2G advertisement, and dedicated PHEV purchase permits were not very influential to the diffusion of V2G. The outcomes would be helpful for EV- and V2G-related stakeholders in policy making and technology investment.

In this paper, we explore the practices and spaces of mobile phone charging in The Gambia and Sierra Leone through the lens of 'electricity scarcity‘ as a means to conceptualise electricity access in West Africa. The International Energy Agency (IEA) is seen as the leading authority on the state of global energy access, and is frequently cited by government and non-government bodies. We, however, suggest that the IEA‘s quantitative and binary framing of electricity access is analytically problematic for understanding energy poverty. Using ethnographic methods, including observation and semi-structured interviews, we provide insights into the changing socio-technological, socio-political and socio-economic dimensions of mobile phone charging including its relationship with the built environment. Comparing mobile phone charging in The Gambia and Sierra Leone, clearly shows that the notion of absolute electricity scarcity which is promulgated by IEA statistics only offers a limited picture of energy poverty, especially at the locale. Instead, drawing on political ecology scholarship, we propose a concept of political electricity scarcity as an approach enables a more human-centred and nuanced understanding of how energy poverty operates or is mitigated through community-based structures or at a household level. By reframing energy poverty issues through this lens, we are able to illustrate the role that political economy dynamics play in shaping the electricity flows in rural Sub-Saharan Africa and who ultimately gets what kind of electricity access.

The production of biofuel from cellulosic residues can have both environmental and financial benefits. A particular benefit is that it can alleviate competition for land conventionally used for food and feed production. In this research, we investigate greenhouse gas (GHG) emissions associated with the production of ethanol, biomethane, limonene and digestate from citrus waste, a byproduct of the citrus processing industry. The study represents the first life cycle-based evaluations of citrus waste biorefineries. Two biorefinery configurations are studied—a large biorefinery that converts citrus waste into ethanol, biomethane, limonene and digestate, and a small biorefinery that converts citrus waste into biomethane, limonene and digestate. Ethanol is assumed to be used as E85, displacing gasoline as a light-duty vehicle fuel; biomethane displaces natural gas for electricity generation, limonene displaces acetone in solvents, and digestate from the anaerobic digestion process displaces synthetic fertilizer. System expansion and two allocation methods (energy, market value) are considered to determine emissions of co-products. Considerable GHG reductions would be achieved by producing and utilizing the citrus waste-based products in place of the petroleum-based or other non-renewable products. For the large biorefinery, ethanol used as E85 in light-duty vehicles results in a 134% reduction in GHG emissions compared to gasoline-fueled vehicles when applying a system expansion approach. For the small biorefinery, when electricity is generated from biomethane rather than natural gas, GHG emissions are reduced by 77% when applying system expansion. The life cycle GHG emissions vary substantially depending upon biomethane leakage rate, feedstock GHG emissions and the method to determine emissions assigned to co-products. Among the process design parameters, the biomethane leakage rate is critical, and the ethanol produced in the large biorefinery would not meet EISA’s requirements for cellulosic biofuel if the leakage rate is higher than 9.7%. For the small biorefinery, there are no GHG emission benefits in the production of biomethane if the leakage rate is higher than 11.5%. Compared to system expansion, the use of energy and market value allocation methods generally results in higher estimates of GHG emissions for the primary biorefinery products (i.e., smaller reductions in emissions compared to reference systems).

Household air pollution (HAP) is associated with adverse pregnancy outcomes.Investigate impact of in-utero HAP exposure on placental development and chronic hypoxia.Markers of chronic placental hypoxia [Hofbauer cells (HBC), syncytial knots (SK), chorionic vascular density (cVD) and hypoxia-inducible factor (HIF)] were stained by hematoxylin-eosin and/or immunohistochemically in placenta samples collected from firewood-/kerosene-users (A,n=16), and ethanol-users (B,n=20) that participated in a randomized controlled intervention trial in Ibadan, Nigeria. A third group of non-smoking and presumed natural gas-using Chicago women (C,n=12) were included in this exploratory pilot to assess for possible differences in placenta histology between similar racial groups. All patients had uncomplicated pregnancies and delivered at term.HBC, SK and cVD were significantly increased among firewood-/kerosene-users compared to ethanol-users and natural gas-using Chicago women (HBC medians 5.5, 3.5, and 2.0, respectively; SK means 55.6, 41.8 and 30.1; cVD means 8.8, 6.2, and 5.2; all p<0.01). HIF expression was significantly higher in Group A compared to B and C (all p<0.001).In-utero exposure to HAP is associated with pathologic changes and HIF expression consistent with chronic hypoxia in placenta of firewood/kerosene-users compared to ethanol-users with less HAP exposure and Chicago women with no presumed HAP exposure. Presence of chronic hypoxic signature in placenta of women exposed to HAP has implications for adverse pregnancy complications and future growth and development of the young children. Future larger studies need to focus on HAP exposure and placental disorders like preeclampsia and long-term health impact of in-utero exposure to HAP.

This paper discusses an overall strategy for reducing energy demand in non-domestic buildings, mainly focusing on office developments. It considers four areas: reducing internal heat loads; addressing passive design through the building construction; using efficient and responsive HVAC systems and focusing on chilled (heated) surface systems; integrating renewable energy supply systems into the building design. The impact on energy use and carbon dioxide emissions will be discussed. The paper will draw from a range of design projects carried out in Europe, where this integrated approach has been applied, and then explore the benefits in relation to applications in the Middle East and China. Energy modelling results, to inform the design process will be presented, using energy simulation for three case study locations, in Zurich, the Chongqing and Abu Dhabi.

Interactive devices and the services they support are reliant on the cloud and the digital infrastructure supporting it. The environmental impacts of this infrastructure are substantial and for particular services the infrastructure can account for up to 85% of the total impact. In this paper, we apply the principles of Sustainable Interaction Design to cloud services use of the digital infrastructure. We perform a critical analysis of current design practice with regard to interactive services, which we identify as the cornucopian paradigm. We show how user-centered design principles induce environmental impacts in different ways, and combine with technical and business drivers to drive growth of the infrastructure through a reinforcing feedback cycle. We then create a design rubric, substantially extending that of Blevis [6], to cover impacts of the digital infrastructure. In doing so, we engage in design criticism, identifying examples (both actual and potential) of good and bad practice. We then extend this rubric beyond an eco-efficiency paradigm to consider deeper and more radical perspectives on sustainability, and finish with future directions for exploration.

This publication brings together the major recommendations for the initial memorandum for the Spatial Implementation Plan (SIP) for the Oudland Polder (phase 1) arising from the European COASTAL Horizon 2020 project. They are based on a far-seeing exploration of the future, up to 2100, in which a range of societal developments were explored. This means that we reviewed, for example, how the further urbanisation and population growth in this polder region could evolve. We also checked which agricultural practices we could expect in the Oudland Polder in the future. This implies that we had to take into account a great many uncertainties when developing these recommendations. One of the ways to do this is to work with scenarios, whether or not supported by modelling work. This means each of the recommendations on the following pages is substantiated by the insights arising from this scenario work. Furthermore, we involved a diverse group of stakeholders living and/or working in the region in this exploration of the future. Through their expertise in relation to the Oudland Polder, they provided a valuable contribution to the debate on the future of this polder region. What they brought to the table helped to contextualise and interpret results. Thirdly, where possible, we also made the link between European and Flemish policy lines that are aimed at the longer term and present some clear objectives for the coming decades. This means the recommendations presented in this publication are a synthesis of research combining both qualitative and quantitative work, and in which modelling work builds upon a direct dialogue with stakeholders, but has also fed into it. We would therefore like to expressly thank all the stakeholders and experts who have made us familiar with the Oudland Polder in recent years, in particular the staff at the VLM. We also extend our sincere thanks to everyone who took part in one of the workshops, gave feedback on publications or took the time to work with us on the various scenarios referred to in this publication.