Transmission grid extensions for the integration of variable renewable energies in Europe: Who benefits where?
Transmission grid extensions for the integration of variable renewable energies in Europe: Who benefits where?
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DOI：
10.1016/j.enpol.2011.12.040
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发表时间：
2012-04-01
期刊：
影响因子：
9
通讯作者：
Hamacher, Thomas
中科院分区：
文献类型：
--
作者：
Schaber, Katrin;Steinke, Florian;Hamacher, Thomas
风能和太阳能发电的可变可再生能源（VRE）在欧洲发展迅速。如今，VRE的电力贡献有时已经接近某些地区的总需求，对电力系统的其余部分造成严重后果。电网扩展对于VRE的物理整合（即电力运输）是必要的，但它们也对所有电力系统参与者产生重要的经济后果。我们采用区域电力系统模型来研究欧洲电网扩展对VRE市场影响的作用。我们得出了2020年欧洲预计风能和太阳能容量的成本最优宏观输电网扩展，并以高区域和技术分辨率描述了它们对电力系统的影响。在没有电网扩展的情况下，更低的电价、新的价格动态和传统发电技术的满负荷小时数减少，导致VRE容量接近高水平。这将导致公用事业预计可实现收入的重大变化。电网扩展部分地缓解和重新分配了这些影响，主要是为了基本负荷和VRE技术本身的利益。(C) 2012 Elsevier Ltd.版权所有。
Variable renewable energy (VRE) generation from wind and sun is growing quickly in Europe. Already today, VRE's power contribution is at times close to the total demand in some regions with severe consequences for the remainder of the power system. Grid extensions are necessary for the physical integration of VRE, i.e., for power transports, but they also have important economic consequences for all power system participants.We employ a regional, power system model to examine the role of grid extensions for the market effects of VRE in Europe. We derive cost-optimal macroscopic transmission grid extensions for the projected wind and solar capacities in Europe in 2020 and characterize their effects on the power system with high regional and technological resolution.Without grid extensions, lower electricity prices, new price dynamics and reduced full load hours for conventional generation technologies result in proximity to high VRE capacities. This leads to substantial changes in the projected achievable revenues of utilities. Grid extensions partially alleviate and redistribute these effects, mainly for the benefit of baseload and the VRE technologies themselves. (C) 2012 Elsevier Ltd. All rights reserved.