Auctions have recently become the most widely adopted approach globally to procure renewable energy projects. Countries starting to use auctions often struggle to secure sufficient bidder interest – resulting in limited competition levels and high project prices. Brazil, a pioneer in the use of auctions to stimulate investment in renewable energy projects, offers important lessons on not only how auctions can be designed and implemented to stimulate competition and deliver effective investment outcomes, but importantly also shows how auctions form part of the country's electricity markets and can be integrated in a country's broader institutional and policy framework to ensure long-term success. This paper presents the detailing and specifications throughout the process of contracts and auction design definition to integrate renewable energy sources (RES) into the electrical matrix, from the institutional and procedural side to policy implications of securing the revenue stream and addressing off-taker risk between the sellers and buyers of electricity sector.

拍卖最近已成为全球采购可再生能源项目最广泛采用的方法。开始使用拍卖的国家往往难以获得足够的投标人兴趣——导致竞争水平有限和项目价格高昂。巴西是利用拍卖刺激可再生能源项目投资的先驱，它不仅提供了关于如何设计和实施拍卖以刺激竞争和实现有效投资成果的重要经验，而且还重要地展示了拍卖如何构成该国的一部分电力市场，并可以纳入一个国家更广泛的制度和政策框架，以确保长期成功。