46 research outputs found
Community-based micro grids: a common property resource problem
This paper introduces a new methodological and theoretical foundation for studying the reasons for successes and failures of community-based micro grids (CBMGs). While technical and financial factors involved are very critical they are comparatively well researched. This analysis argues that further research into, in particular, the institutional design of CBMGs is required in order to improve long-term sustainability. The paper suggests that the electricity in an isolated micro grid can be treated as a common property resource (CPR), which then opens up the established academic literature regarding collective action in the presence of CPRs. More specifically this paper analyses how the rich set of enabling conditions for collective action, which has been established in the context of traditional CPR situations such as water for irrigation or pasture for grazing, can be applied to the context of CBMGs. The goal is to arrive at workable recommendations for policy-makers and practitioners to inform the design and improve the long-term sustainability of CBMGs. Ultimately this has the potential to contribute towards efforts to bring modern energy services to significant parts of rural populations without electricity access
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All together now: institutional innovation for pro-poor electricity access in sub-Saharan Africa
Access to electricity is an important precondition to many aspects of human and
economic development. Yet, in rural sub-Saharan Africa in particular, access rates
remain very low â at an average of 17% and much lower in some cases. Rural
electrification in Kenya, the focus of this thesis, had only reached 7% in 2014. Given
the goal of universal electrification by 2030, formulated as part of Sustainable
Development Goal 7, scalable and replicable approaches that are able to support
productive and non-productive uses are required.
Mini-grids are one promising solution to this problem, alongside grid extension and
off-grid approaches such as solar home systems. However, their long-term operational
sustainability has historically been a challenge. While the academic literature to date on
sustainable energy access has largely been two-dimensional in its analysis of mini-grids
(focusing on technology and economics or financing), this thesis contributes to an
emerging body of recent contributions to the literature, which have begun to foreground
socio-cultural considerations.
Bridging the literature on collective action for common-pool resource (CPR)
management and property rights theory, a refined theoretical framework is produced for
the purpose of analysing the institutional conditions for sustainable management of rural
mini-grids. The utility of this framework and of treating electricity in a mini-grid as a
CPR is demonstrated via empirical analysis of three case studies of mini-grids in rural
Kenya and evidence from 24 expert interviews. This yields insights on nontechnological
approaches to addressing operational challenges relating to sustainable
mini-grid management, e.g. fair allocation of limited amounts of electricity to different
consumers in ways that are acceptable to the entire community. This thesis develops
contributions to the literature on sustainable CPR management and collective action,
property rights theory and energy access in developing countries. From these theoretical
and empirical insights, it explores a novel institutional structure for sustainable
management of pro-poor mini-grids in the form of a communityâprivate property hybrid
management platform, thereby opening up opportunities for future research into the
implementation of such a platform. The thesis represents the first comprehensive
attempt to analyse the institutional aspects of pro-poor mini-grid management as well as
the first comprehensive attempt to treat electricity in a mini-grid as a CPR
Sustainable energy for whom? Governing pro-poor, low-carbon pathways to development: lessons from solar PV in Kenya
Using a combination of insights from innovation studies, sociotechnical transitions theory and the STEPS pathways approach, this paper analyses the evolution of the Kenyan photovoltaics (PV) market.
Considered by many to be an exemplar of private sector led
development, the Kenyan PV market has witnessed the adoption of more than 300,000 solar home systems and over 100,000 solar portable lights. The notion of an entrepreneurially driven unsubsidised solar market has proved to be a powerful narrative amongst development actors who, paradoxically, have provided millions of dollars of funding to encourage the marketâs development.
We argue that this donor support has been critical to the success of the market, but not simply by helping to create an enabling environment in which entrepreneurs can flourish. Donor assistance has been critical in supporting a range of actors to build the elements of a PV innovation system by providing active protection for experimentation, network-building, and the construction of shared
visions amongst actors throughout supply chains and amongst users.This analysis gives important clues for designing climate and development policies, with implications for the governance of energy access pathways that are inclusive of poor and marginalised groups in low income countries
The behavioral turn in flood risk management, its assumptions and potential implications
Recent policy changes highlight the need for citizens to take adaptive actions to reduce flood-related impacts. Here, we argue that these changes represent a wider behavioral turn in flood risk management (FRM). The behavioral turn is based on three fundamental assumptions: first, that the motivations of citizens to take adaptive actions can be well understood so that these motivations can be targeted in the practice of FRM; second, that private adaptive measures and actions are effective in reducing flood risk; and third, that individuals have the capacities to implement such measures. We assess the extent to which the assumptions can be supported by empirical evidence. We do this by engaging with three intellectual catchments. We turn to research by psychologists and other behavioral scientists which focus on the sociopsychological factors which influence individual motivations (Assumption 1). We engage with economists, engineers, and quantitative risk analysts who explore the extent to which individuals can reduce flood related impacts by quantifying the effectiveness and efficiency of household-level adaptive measures (Assumption 2). We converse with human geographers and sociologists who explore the types of capacities households require to adapt to and cope with threatening events (Assumption 3). We believe that an investigation of the behavioral turn is important because if the outlined assumptions do not hold, there is a risk of creating and strengthening inequalities in FRM. Therefore, we outline the current intellectual and empirical knowledge as well as future research needs. Generally, we argue that more collaboration across intellectual catchments is needed, that future research should be more theoretically grounded and become methodologically more rigorous and at the same time focus more explicitly on the normative underpinnings of the behavioral turn
Insights into the accuracy of social scientists' forecasts of societal change
How well can social scientists predict societal change, and what processes underlie their predictions? To answer these questions, we ran two forecasting tournaments testing the accuracy of predictions of societal change in domains commonly studied in the social sciences: ideological preferences, political polarization, life satisfaction, sentiment on social media, and genderâcareer and racial bias. After we provided them with historical trend data on the relevant domain, social scientists submitted pre-registered monthly forecasts for a year (Tournament 1; N = 86 teams and 359 forecasts), with an opportunity to update forecasts on the basis of new data six months later (Tournament 2; N = 120 teams and 546 forecasts). Benchmarking forecasting accuracy revealed that social scientistsâ forecasts were on average no more accurate than those of simple statistical models (historical means, random walks or linear regressions) or the aggregate forecasts of a sample from the general public (N = 802). However, scientists were more accurate if they had scientific expertise in a prediction domain, were interdisciplinary, used simpler models and based predictions on prior data
Oil in the 21st Century: responding to key drivers of change
The ECSSR 16th annual energy conference, The oil era : emerging challenges, held at the center on November 8-10, 2010, and the resultant papers contained in this volume, provide a professional, academic investigation of the challenges that lie ahead for the oil ag
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Debunking free market myths: transforming pro-poor, sustainable energy access for climate compatible development
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Biologische Rekonstruktion lokalisiert vollschichtiger KnorpelschĂ€den des HĂŒftgelenks: Empfehlungen der Arbeitsgemeinschaft âKlinische Geweberegenerationâ der DGOU und des HĂŒftkomitees der AGA
Background Symptomatic pre-arthritic deformities such as femoroacetabular impingement (FAI) or hip dysplasia often lead to localised cartilage defects and subsequently to osteoarthritis. The present review of the working group "Clinical Tissue Regeneration" of the German Society of Orthopaedics and Trauma (DGOU) and the hip committee of the AGA (German speaking Society for Arthroscopy and Joint Surgery) provides an overview of current knowledge of the diagnosis and surgical treatment of cartilage defects, in order to infer appropriate therapy recommendations for the hip. Methods Review of FAI and resultant cartilage damage in the hip as reported in published study findings in the literature and discussion of the advantages and disadvantages of different surgical procedures to preserve the joint. Results Most published studies on the surgical treatment of cartilage damage in the hip report defects caused by cam-type FAI at the acetabulum. Development of these defects can be prevented by timely elimination of the relevant deformities. At present, current full-thickness cartilage defects are mostly treated with bone marrow-stimulating techniques such as microfracture (MFx), with or without a biomaterial, and matrix-assisted autologous chondrocyte transplantation (MACT). Osteochondral autologous transplantation (OAT) is not the treatment of choice for isolated full-thickness chondral defects at the hip, because of the unfavourable risk-benefit profile. Due to the relatively short history of cartilage repair surgery on the hip, the studies available on these procedures have low levels of evidence. However, it is already becoming obvious that the experience gained with the same procedures on the knee can be applied to the hip as well. For example, limited healing and regeneration of chondral defects after MFx can also be observed at the hip joint. Conclusions The cartilage surface of the acetabulum, where FAI-related chondral lesions appear, is considerably smaller than the weight-bearing cartilage surface of the knee joint. However, as in the knee joint, MACT is the therapy of choice for full-thickness cartilage defects of more than 1.5-2 cm(2). Minimally invasive types of MACT (e.g. injectable chondrocyte implants) should be preferred in the hip joint. In cases where a single-stage procedure is indicated or there are other compelling reasons for not performing a MACT, a bone marrow-stimulating technique in combination with a biomaterial covering is preferable to standard MFx. For treatment of lesions smaller than 1.5-2 cm2 the indication for a single-stage procedure is wider. As with defects in the knee, it is not possible to determine a definite upper age limit for joint-preserving surgery or MACT in the hip, as the chronological age of patients does not necessarily correlate with their biological age or the condition of their joints. Advanced osteoarthritis of the hip is a contraindication for any kind of hip-preserving surgery. Long-term observations and prospective randomised studies like those carried out for other joints are necessary