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  • Low-income energy affordability in an era of U.S. energy abundance
    Prog. Energy Pub Date : 2020-10-31
    Marilyn A Brown, Anmol Soni, Melissa V Lapsa, Katie Southworth and Matt Cox

    In an era of U.S. energy abundance, the persistently high energy bills paid by low-income households is troubling. After decades of weatherization and bill-payment programs, low-income households still spend a higher percent of their income on electricity and gas bills than any other income group. Their energy burden is not declining, and it remains persistently high in particular geographies such

  • Successful clean energy technology transitions in emerging economies: learning from India, China, and Brazil
    Prog. Energy Pub Date : 2020-10-02
    Radhika Khosla, Ajinkya Shrish Kamat and Venkatesh Narayanamurti

    Technological innovation and widespread deployment of clean-energy technologies in emerging economies are critical for a global clean energy transition. Success or failure in this endeavour will have long-term energy and carbon consequences. A fundamental question exists about whether, and how, emerging economies can accelerate clean-energy transitions, given the unprecedented scales of their impending

  • Role and value of flexibility in facilitating cost-effective energy system decarbonisation
    Prog. Energy Pub Date : 2020-09-23
    Goran Strbac, Danny Pudjianto, Marko Aunedi, Predrag Djapic, Fei Teng, Xi Zhang, Hossein Ameli, Roberto Moreira and Nigel Brandon

    Decarbonisation of the electricity system requires significant and continued investment in low-carbon energy sources and electrification of the heat and transport sectors. With diminishing output and shorter operating hours of conventional large-scale fossil fuel generators, there is a growing need and opportunity for other emerging technologies to provide flexibility in the context of grid support

  • Hard carbons for sodium-ion batteries and beyond
    Prog. Energy Pub Date : 2020-09-23
    Fei Xie, Zhen Xu, Zhenyu Guo and Maria-Magdalena Titirici

    Sodium-ion batteries (SIBs) are one of the most promising alternatives to lithium-ion batteries (LIBs), due to the much more abundant resources of Na compared with Li in the world. Developing SIB technology to satisfy the increased demand for energy storage is therefore a significant task . However, one of the biggest bottlenecks is the design of high-performance and low-cost anode materials, since

  • Advancing energy poverty measurement for SDG7
    Prog. Energy Pub Date : 2020-09-21
    Shonali Pachauri and Narasimha D Rao

    Existing indicators used to track progress towards achieving target 7.1 of the sustainable development goals (SDGs) narrowly interpret energy poverty as a lack of connections. Recently proposed measurement frameworks are multidimensional, but complex and conceptually muddled. We propose an alternative framework that simplifies and distinguishes two conceptually distinct aspects of energy access—energy

  • Energy policy and public opinion: patterns, trends and future directions
    Prog. Energy Pub Date : 2020-08-09
    Parrish Bergquist, David M Konisky and John Kotcher

    This article analyzes patterns and trends in U.S public opinion about energy policy to understand which types of policy approaches Americans support and the individual-level determinants that are associated with those preferences. Specifically, we study data from three long-running surveys series—the National Surveys on Energy and Environment, the Climate Change in the American Mind survey and the

  • Energy storage in long-term system models: a review of considerations, best practices, and research needs
    Prog. Energy Pub Date : 2020-07-23
    John Bistline, Wesley Cole, Giovanni Damato, Joseph DeCarolis, Will Frazier, Vikram Linga, Cara Marcy, Chris Namovicz, Kara Podkaminer, Ryan Sims, Manussawee Sukunta and David Young

    Technological change and policy support have heightened expectations for the role of energy storage in power systems, creating a need to enhance representations of energy storage in long-term models to inform decision-making. Energy storage technologies have complex and diverse cost, value, and performance characteristics that make them challenging to model, but there is limited guidance about best

  • Life-cycle environmental impacts of single-junction and tandem perovskite PVs: a critical review and future perspectives
    Prog. Energy Pub Date : 2020-07-23
    Enrica Leccisi and Vasilis Fthenakis

    For new technologies, such as perovskite solar cells (PSC), life cycle analysis (LCA) offers a fundamental framework for examining potential environmental, energy and health impacts and mitigation options before large-scale commercialization and for guiding improvements in development and production that further reduce their environmental footprint. However, credible LCA studies require actual process-based

  • Energy efficiency and renewable energy utilization in desalination systems
    Prog. Energy Pub Date : 2020-07-08
    Veera Gnaneswar Gude and Vasilis Fthenakis

    Desalination technologies and industry have advanced significantly in the past two decades to meet the growing freshwater demands stimulated by the compounding issues of both water quality and quantity in many regions of the world. As desalination processes are energy demanding, there have been many efforts dedicated to improve energy-efficiency of the process units, enhance energy conservation and

  • Intrinsic and environmental stability issues of perovskite photovoltaics
    Prog. Energy Pub Date : 2020-05-26
    Sam Zhang and Guifang Han

    Recent years have witnessed the fast development of perovskite photovoltaics and achievement of efficiency increase (now to over 25%). However, stability issues must be satisfactorily dealt with before its real application and commercialization. Environmental stability issues include moisture, oxygen, light, and heat. Moisture was the first recognized stability problem, and has been vastly investigated

  • Materials design of ionic conductors for solid state batteries
    Prog. Energy Pub Date : 2020-03-18
    Saneyuki Ohno, Ananya Banik, Georg F Dewald, Marvin A Kraft, Thorben Krauskopf, Nicoló Minafra, Paul Till, Manuel Weiss and Wolfgang G Zeier

    All-solid-state batteries, employing inorganic ion conductors as electrolytes, can surpass the current Li-ion technology in terms of energy density, battery safety, specific power, as well as a fast-charging capability; however, a highly conductive solid electrolyte is essential. While recent extensive explorations of solid ion conductors have led to a list of candidate materials, there are still enormous

  • Natural gas fuel and greenhouse gas emissions in trucks and ships
    Prog. Energy Pub Date : 2020-01-20
    Jamie Speirs, Paul Balcombe, Paul Blomerus, Marc Stettler, Pablo Achurra-Gonzalez, Mino Woo, Daniel Ainalis, Jasmin Cooper, Amir Sharafian, Walter Merida, Daniel Crow, Sara Giarola, Nimil Shah, Nigel Brandon and Adam Hawkes

    Natural gas is a transport fuel which may help reduce greenhouse gas emissions in shipping and trucks. However, there is some disagreement regarding the potential for natural gas to provide significant improvements relative to current ships and trucks. In 2015, road freight represented ~7% of global energy related CO 2 emissions, with international shipping representing ~2.6% of global emissions. These

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