The purpose of this paper is to highlight the opportunity for the energy policy in Brazil to tackle the very high cost-effectiveness potencial of solar energy to the power system. Three mechanisms to achieve ambitious reductions in the greenhouse gas emissions from the power sector by 2030 and 2040 are assessed wherein treated as solar targets under ambitious reductions in the greenhouse gas emissions from the power sector. Then, three mechanisms to achieve these selected solar targets are suggested.,This paper reviews current and future incentive mechanisms to promote solar energy. An integrated energy system optimization model shows the most cost-efficient deployment level. Incentive mechanisms can promote renewable sources, aiming to tackle climate change and ensuring energy security, while taking advantage of endogenous energy resources potential. Based on a literature review, as well as on the specific characteristics of the Brazilian power system, under restrictions for the expansion of hydroelectricity and ambitious limitation in the emissions of greenhouse gases from the power sector.,The potential unexploited of solar energy is huge but it needs the appropriate incentive mechanism to be deployed. These mechanisms would be more effective if they have a specific technological and temporal focus. The solar energy deployment in large scale is important to the mitigation of climate change.,The value of the research is twofold: estimations of the cost-effective potential of solar technologies, generated from an integrated optimization energy model, fully calibrated for the Brazilian power system, while tacking the increasing electricity demand, the expected reduction of greenhouse gas emissions and the need to increase the access to clean and affordable energy, up to 2040; proposals of three mechanisms to deploy centralized PV, distributed PV and solar thermal power, taking the best experiences in several countries and the recent Brazilian cases.

中文翻译：

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太阳能政策助力巴西电力行业

本文的目的是强调巴西能源政策的机遇，以解决太阳能对电力系统的巨大成本效益。评估了到2030年和2040年实现电力部门温室气体排放量大幅减少的三种机制，其中将其作为电力部门温室气体排放量大幅减少的太阳能目标。然后，提出了实现这些选定的太阳能目标的三种机制。本文概述了当前和未来促进太阳能发展的激励机制。集成的能源系统优化模型显示了最具成本效益的部署水平。激励机制可以促进可再生能源的发展，旨在应对气候变化并确保能源安全，同时利用内在的能源潜力。根据文献综述以及巴西电力系统的特定特征，在水电扩张的限制以及电力部门温室气体排放的雄心勃勃的限制下，未开发的太阳能潜力巨大，但它需要适当的激励机制进行部署。如果这些机制具有特定的技术和时间重点，它们将更加有效。大规模部署太阳能对于缓解气候变化具有重要意义。研究的价值是双重的：根据集成的优化能源模型估算出的太阳能技术的成本效益潜力，并针对巴西电力进行了全面校准系统，到2040年，在应对不断增长的电力需求，预期减少的温室气体排放以及需要增加获得清洁和负担得起的能源的需求的同时；提出了部署集中式光伏，分布式光伏和太阳能热能的三种机制的建议，并借鉴了多个国家的最佳经验以及最近的巴西案例。