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Solar Photovoltaics (PV) is considered a highly competitive technology supporting the transition towards a low-carbon energy system. However, increased shares of its deployment have caused a set of mainly regulatory and financial challenges which require solutions. This paper identifies key research challenges for the further development and deployment of Solar PV, aiming to bridge the gap between expressed market needs and scientific research inquiries. The findings revealed a heterogeneous landscape of Research Priorities and Research Needs focused around the issues of renewable energy sources' variability, the impacts of curtailment, material (re-)use and module efficiency, synergies with the cooling/heating sector, quality criteria and standardisation, as well as new support schemes and business models. These findings can be taken up by academic institutions or technology associations to shape further directions for research. Finally, a list of implications to guide potential end-users involved in the field of policy and practice is provided. [ABSTRACT FROM AUTHOR]

This paper employs an integrated model for analysis of energy demand and MARKet ALlocation modelling framework for assessing different pathways for the development of energy systems of Nepal. Four energy scenarios are analysed with the time horizon from 2010 to 2030. With high electrification and energy efficiency and demand-side management, the analysis reveals that all three major goals of sustainable energy for all can be achieved by 2030, but that the total discounted systems costs required account for three times the costs of the reference scenario. In the policy scenario, net fuel import costs and greenhouse gas emissions will decline by 20% and 35%, respectively and the share of renewable energy will increase from 3% in 2010 to 22% in 2030. The analysis provides insights for selecting a better pathway for the sustainable energy development and energy security of the country. [ABSTRACT FROM AUTHOR]