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[SpringerBriefs in Energy] Grid Parity and Carbon Footprint (An Analysis for Residential Solar Energy in the Mediterranean Area) ||
摘要： In the context of global warming, big cities’ atmosphere is always more contaminated and natural disasters in augmentation, solar energy, and more generally renewable energies are sources of great enthusiasm. Besides, thanks to recent improvements in technologies, the costs of photovoltaic (PV) have strongly declined in the last decades and are now accessible for particulars. The purpose of this project is then to study the economic profitability of solar energy for a residential use. A common and appropriate tool for this is the grid parity. This term, largely used in the literature, refers to the moment when producing electricity from solar modules will have the same cost than buying it from the grid. Grid parity depends mainly on the geographic position (as solar irradiation is very different from a place to another) and on the local electricity price. Consequently, a country with expensive electricity and a high rate of irradiation is more likely to reach grid parity soon. In the present study, the geographic framework chosen is the Mediterranean area, which includes countries with similar climates but with other differences sufficiently important to obtain interesting comparative results. The PV system used in the following model is a basic one since it does not include energy storage or resale to the grid, which gives a conservative perspective to the study. Extensive financial analysis is conducted in order to determine under which conditions it is the most profitable. The secondary objective is to evaluate the environmental impact of solar energy, mainly by carrying out carbon footprint analysis. It basically consists in comparing the emissions released by the manufacturing process of the modules to the reduction obtained thanks to its utilization. This study is first realized at an individual level and, then, is generalized at a national one in order to measure what could be the contribution of a massive investment in residential solar energy to the Paris agreement objectives.
关键词： Mediterranean area,Carbon footprint,Residential solar energy,Economic profitability,Environmental impact,Photovoltaic energy,Grid parity
更新于2025-09-23 15:23:52
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[IEEE 2018 6th International Renewable and Sustainable Energy Conference (IRSEC) - Rabat, Morocco (2018.12.5-2018.12.8)] 2018 6th International Renewable and Sustainable Energy Conference (IRSEC) - Criteria for Identifying More Favourable Areas for Photovoltaic Installations : Case of East Spain
摘要： Technological development and social concern about the natural environment mean that renewable energies are a real alternative to fossil fuel sources. Renewable energies are not only a market niche, but can be a profitable alternative in agricultural economic domains. When studying where to locate photovoltaic installations, it is necessary to bear in mind the opportunity cost; that is, alternative land use. Medium- or large-sized photovoltaic installations are placed on lands normally used for farming, so the opportunity cost of such installations must be included in both economic and location terms.
关键词： solar radiation,profitability,opportunity cost,solar energy
更新于2025-09-12 10:27:22
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Economic Assessment of Solar Photovoltaics Use in Agricultural Greenhouses in Greece
摘要： Modern greenhouses can utilize renewable energy sources for covering their energy requirements and reducing their carbon footprint. Solar photovoltaics use for power generation is currently a reliable and cost-effective technology which is used in many applications. The purpose of the current work is to investigate the possibility of using solar photovoltaics in agricultural greenhouses in Greece and to assess their profitability compared with the profitability of their use in households. Semi-transparent and opaque photovoltaic cells can be used for electricity generation with the net-metering regulations covering all their annual electricity needs. Existing studies in various countries concerning their use in greenhouses have reported a payback period of the investments of 4-10 years. In Greece the cost of electricity in the agricultural sector is subsidized while economic incentives are offered regarding the use of this technology in greenhouses. Economic assessment of the investment of solar photovoltaics in greenhouses for a period of 25 years in Greece indicates payback periods of 7.2 and 14.4 years, depending on capital subsidies obtained, while positive net present values are achieved. Their use in households in Greece has a payback period of 10.4 years while the net present value is also positive. The current study indicates that the use of solar photovoltaics in modern greenhouses in Greece supported financially by the government according to the net-metering regulations is profitable, offering economic and environmental benefits to the farmers.
关键词： profitability,solar energy,net-metering,agricultural greenhouses,photovoltaics,Greece,pay-back period,net present value
更新于2025-09-11 14:15:04