论文标题
风能的地理平衡可以减少100％可再生能源部门的存储需求
Geographical balancing of wind power decreases storage needs in a 100% renewable European power sector
论文作者
论文摘要
为了减少温室气体排放，许多国家计划大规模扩大风能和太阳能光伏能力。这些可变的可再生能源需要在电力部门进行额外的灵活性。通过互连和电力存储启用的地理平衡都可以提供这种灵活性。在十二个中欧国家的100％可再生能源方案中，我们研究了国家之间的地理平衡如何减少对电力储存的需求。我们的主要贡献是分开和量化不同因素。采用容量扩展模型和分解方法，我们通过不同的因素来解散互连对最佳存储能力的影响：国家的太阳能PV和风能可用性模式，负载轮廓以及水力发电和生物稳态容量组合。结果表明，与没有互连的情况相比，互连可将存储需求减少约30％。国家 /地区之间的风力谱差异解释了大约80％的影响。
To reduce greenhouse gas emissions, many countries plan to massively expand wind power and solar photovoltaic capacities. These variable renewable energy sources require additional flexibility in the power sector. Both geographical balancing enabled by interconnection and electricity storage can provide such flexibility. In a 100% renewable energy scenario of twelve central European countries, we investigate how geographical balancing between countries reduces the need for electricity storage. Our principal contribution is to separate and quantify the different factors at play. Applying a capacity expansion model and a factorization method, we disentangle the effect of interconnection on optimal storage capacities through distinct factors: differences in countries' solar PV and wind power availability patterns, load profiles, as well as hydropower and bioenergy capacity portfolios. Results show that interconnection reduces storage needs by around 30% in contrast to a scenario without interconnection. Differences in wind power profiles between countries explain around 80% of that effect.
