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Barriers to and consequences of a solar-based energy transition in Greece
摘要： In Greece, the renewable energy potential and a low-quality building stock constitute the background of a possible low-carbon energy transition. This transition, however, faces significant uncertainties, ranging from long-term effects of the ongoing economic recession and technological lock-ins, to the stability of the regulatory framework and issues of public acceptance. Such uncertainties may eventually give rise to significant barriers to, as well as severe economic and social consequences of, the envisaged transition. Here, in a structured approach to eliciting the knowledge embedded in stakeholders, we identify such risks and explore their dynamics and role in a sustainable transition to a power system that is based on large-scale solar projects and prosuming in the residential sector. We then employ a modelling ensemble, consisting of a macroeconomic dynamic stochastic general equilibrium model and a business strategy assessment model, in order to quantify and evaluate the extent of the identified risks’ impact.
关键词： Modeling,Energy transitions,Fuzzy cognitive maps,Solar power,Greece,Self-consumption
更新于2025-09-23 15:22:29
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Governing the Fix: Energy Regimes, Accumulation Dynamics, and Land Use Changes in Japana??s Solar Photovoltaic Boom
摘要： This article examines the role of recent reforms to Japan’s energy governance regime in stimulating fixed capital investments in solar photovoltaic (PV) systems and analyzes the investment trends and land use changes that are emerging as a result. Following the March 2011 Fukushima nuclear disaster, the Japanese government passed a feed-in tariff (FIT) to incentivize renewable energy production, followed by the liberalization of the small-scale retail power market. Although recent geographical scholarship suggests that fixed capital investments in renewable energy might function as a socioecological fix for capital accumulation, analyzing these reforms through the lens of institutional political economy reveals a crucial limitation facing investors seeking renewed accumulation through a socioecological fix: The state, as the extraeconomic agent charged with sustaining accumulation at the national scale, maintains the capacity to shape conditions of profitability in the electric power sector. Additionally, this article offers a typology of investment patterns and land use changes that have resulted from the growing market in renewables. The guaranteed return on investment offered by the FIT has stimulated demand for space to site solar projects. This demand, coupled with Japan’s strict farmland protections, has led investors to pursue projects in novel configurations that challenge established assumptions about power density and the land demands of solar PV. By bringing the insights of Marxian state theory to bear on the political ecology of fixed infrastructure, this article contributes an empirical analysis of the political ecological dimensions of state action in governing renewable energy transitions.
关键词： socioecological fix,political ecology,renewable energy,state theory,energy transitions
更新于2025-09-23 15:19:57
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Model-Based Exploration of Co-Creation Efforts: The Case of Solar Photovoltaics (PV) in Sk?￥ne, Sweden
摘要： Co-creation in the societal sphere is becoming important in many parts of the world. However, empirical analysis of co-creation in local energy transitions has been understudied. This paper aims to contribute to the field of local energy transitions by integrating a model-based approach with the municipal co-creation efforts in a local energy transition setting. The study uses a mixed-methods approach, with both quantitative and qualitative methods underpinning the approach. A System Dynamics (SD) model is built to analyse the feedback loops created by the co-creation efforts of the municipalities in Sk?ne, Sweden to increase the uptake of household solar photovoltaics. Simultaneously, the model is conceptualized and built in coordination with the municipality actors, and qualitative validation provided by them. An iterative process is implemented, consisting of three steps: interaction with the municipality actors (MAs), developing the causal relationships between the model variables and model development. The suggestions and discussions with the MAs were very useful in understanding the social factors and processes which help in the diffusion of a technologically innovative product, such as solar PV. The MAs said that they found the explanation of the modelling variables useful in undertaking the co-creation efforts.
关键词： local energy transitions,system dynamics,co-creation,Sweden,diffusions
更新于2025-09-23 15:19:57
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[IEEE 2019 34th Symposium on Microelectronics Technology and Devices (SBMicro) - Sao Paulo, Brazil (2019.8.26-2019.8.30)] 2019 34th Symposium on Microelectronics Technology and Devices (SBMicro) - Transition Energy Calculations of Type II In(As)P/InGaP Quantum Dots for Intermediate Band Solar Cells
摘要： In this work, we perform computational simulations of InAsP type II quantum dots for an intermediate band solar cell. We have varied parameters such as height, width and percentage of P of the quantum dots alloy to determine their influence on the optical transitions` energies and electronic confinement within the quantum dots.
关键词： simulation,energy transitions,InP quantum dots,type II quantum dots
更新于2025-09-12 10:27:22