Roadmap on Photovoltaic Absorber Materials for Sustainable Energy Conversion

Photovoltaics (PVs) are a critical technology for curbing growing levels of anthropogenic greenhouse gas emissions, and meeting increases in future demand for low-carbon electricity. In order to fulfil ambitions for net-zero carbon dioxide equivalent (CO2eq) emissions worldwide, the global cumulative capacity of solar PVs must increase by an order of magnitude from 0.9 TWp in 2021 to 8.5 TWp by 2050 according to the International Renewable Energy Agency, which is considered to be a highly conservative estimate. In 2020, the Henry Royce Institute brought together the UK PV community to discuss the critical technological and infrastructure challenges that need to be overcome to address the vast challenges in accelerating PV deployment. Herein, we examine the key developments in the global community, especially the progress made in the field since this earlier roadmap, bringing together experts primarily from the UK across the breadth of the photovoltaics community. The focus is both on the challenges in improving the efficiency, stability and levelized cost of electricity of current technologies for utility-scale PVs, as well as the fundamental questions in novel technologies that can have a significant impact on emerging markets, such as indoor PVs, space PVs, and agrivoltaics. We discuss challenges in advanced metrology and computational tools, as well as the growing synergies between PVs and solar fuels, and offer a perspective on the environmental sustainability of the PV industry. Through this roadmap, we emphasize promising pathways forward in both the short- and long-term, and for communities working on technologies across a range of maturity levels to learn from each other.Comment: 160 pages, 21 figure

Dietetics for high schools /

Includes index."References" at end of each chapter.Mode of access: Internet

Roadmap on established and emerging photovoltaics for sustainable energy conversion

Abstract Photovoltaics (PVs) are a critical technology for curbing growing levels of anthropogenic greenhouse gas emissions, and meeting increases in future demand for low-carbon electricity. In order to fulfil ambitions for net-zero carbon dioxide equivalent (CO2eq) emissions worldwide, the global cumulative capacity of solar PVs must increase by an order of magnitude from 0.9 TWp in 2021 to 8.5 TWp by 2050 according to the International Renewable Energy Agency, which is considered to be a highly conservative estimate. In 2020, the Henry Royce Institute brought together the UK PV community to discuss the critical technological and infrastructure challenges that need to be overcome to address the vast challenges in accelerating PV deployment. Herein, we examine the key developments in the global community, especially the progress made in the field since this earlier roadmap, bringing together experts primarily from the UK across the breadth of the photovoltaics community. The focus is both on the challenges in improving the efficiency, stability and levelized cost of electricity of current technologies for utility-scale PVs, as well as the fundamental questions in novel technologies that can have a significant impact on emerging markets, such as indoor PVs, space PVs, and agrivoltaics. We discuss challenges in advanced metrology and computational tools, as well as the growing synergies between PVs and solar fuels, and offer a perspective on the environmental sustainability of the PV industry. Through this roadmap, we emphasize promising pathways forward in both the short- and long-term, and for communities working on technologies across a range of maturity levels to learn from each other.</jats:p

Recognizing and Moving on from a Failed Paradigm: The Case of Agricultural Landscapes in Anglo-Saxon England c. AD 400–800

A central preoccupation for archaeologists is how and why material culture changes. One of the most intractable examples of this problem can be found between AD 400 and 800 in the enigmatic transformation of sub-Roman into Anglo-Saxon England. That example lies at the heart of this review, explored through the case of the agricultural economy. Although the ideas critically examined below relate specifically to early medieval England, they represent themes of universal interest: the role of migration in the transformation of material culture, politics, and economy in a post-imperial world, the significance of ‘‘core’’ and ‘‘periphery’’ in evolving polities, ethnogenesis as a strategy in kingdom building, property rights as a lens for investigating cultural change, and the relationship between hierarchical political structures and collective forms of governance. The first part of my argument proposes a structured response to paradigmatic stalemate by identifying and testing each underlying assumption, premise, and interpretative framework. The recognition of any fallacies, false premises, and flawed arguments might assist with an overall evaluation of the continuing utility of a discourse—whether it has life in it yet, or should be set aside. In either case, the recognition of its structure should enable arguments to be developed that do not lead into a disciplinary cul-de-sac, prevented by the orthodoxy from exploring new avenues for research. In the second part of the review, I deliberately adopt a starting point outside the limits of the current discourse. Freed from the confines of the conventional consensus, I experiment with an alternative ‘‘bottom-up’’ approach to change in early medieval England that contrasts with conventional ‘‘top-down’’ arguments. I focus in particular on how rights over agricultural property—especially collective rights—and the forms of governance implied by them may assist in illuminating the roles of tradition and transformation in effecting cultural change.This is the author accepted manuscript. The final version is available from Springer via http://dx.doi.org/10.1007/s10814-015-9088-

Roadmap on Established and Emerging Photovoltaics for Sustainable Energy Conversion

Photovoltaics (PVs) are a critical technology for curbing growing levels of anthropogenic greenhouse gas emissions, and meeting increases in future demand for low-carbon electricity. In order to fulfil ambitions for net-zero carbon dioxide equivalent (CO2eq) emissions worldwide, the global cumulative capacity of solar PVs must increase by an order of magnitude from 0.9 TWp in 2021 to 8.5 TWp by 2050 according to the International Renewable Energy Agency, which is considered to be a highly conservative estimate. In 2020, the Henry Royce Institute brought together the UK PV community to discuss the critical technological and infrastructure challenges that need to be overcome to address the vast challenges in accelerating PV deployment. Herein, we examine the key developments in the global community, especially the progress made in the field since this earlier roadmap, bringing together experts primarily from the UK across the breadth of the photovoltaics community. The focus is both on the challenges in improving the efficiency, stability and levelized cost of electricity of current technologies for utility-scale PVs, as well as the fundamental questions in novel technologies that can have a significant impact on emerging markets, such as indoor PVs, space PVs, and agrivoltaics. We discuss challenges in advanced metrology and computational tools, as well as the growing synergies between PVs and solar fuels, and offer a perspective on the environmental sustainability of the PV industry. Through this roadmap, we emphasize promising pathways forward in both the short- and long-term, and for communities working on technologies across a range of maturity levels to learn from each other