论文标题
关于屋顶PV对可持续电力组合的潜在贡献:西班牙的情况
On the potential contribution of rooftop PV to a sustainable electricity mix: the case of Spain
论文作者
论文摘要
这项工作评估了屋顶PV对未来电力组合的潜在贡献。考虑了几种可持续方案,每种场景包括集中式可再生能源,屋顶PV和存储的不同股份。对于每种一代方案,确定净小时需求的存储容量,并确定最小化电力成本的投资组合组合。分析使用公共信息和详细的颗粒模型(小时分辨率)和太空(市政水平)应用于西班牙大陆。对于西班牙案例,当考虑到水力和生物质生成的灵活性时,成本最低的投资组合涉及每天而不是季节性值的顺序,涉及相当适度的存储能力。这表明西班牙的可持续性,几乎没有排放的电力系统是可能的,甚至可以低于当前的批发市场价格。
This work evaluates the potential contribution of rooftop PV to the future electricity mix. Several sustainable scenarios are considered, each comprising different shares of centralized renewables, rooftop PV and storage. For each generation scenario, the storage capacity that balances the net hourly demand is determined, and the portfolio combination that minimizes the cost of supplying electricity is obtained. The analysis is applied to mainland Spain, using public information and detailed granular models, both in time (hourly resolution) and space (municipal level). For the Spanish case, when the flexibility of hydro and biomass generation is taken into account, the least-cost portfolio involves rather modest storage capacities, in the order of daily rather than seasonal values. This shows that a sustainable, almost emissions-free electricity system for Spain is possible, at a cost that can be even lower than current wholesale market prices.