Potenciais riscos de implementação para o piloto do leilão de eficiência energética de Roraima
Summary
The report examines a pilot energy efficiency (EE) auction in Boa Vista, Roraima, proposed by ANEEL. It identifies risks such as the 'winner's curse' due to the closed-envelope format and potential measurement and verification (M&V) errors using the difference-in-differences method. The authors argue that Roraima's unique energy situation—being isolated from the National Interconnected System (SIN) and dependent on diesel thermoelectrics and Venezuelan imports—makes it a poor test case for replicating the model nationwide. It also highlights a conflict of interest where distributors are tasked with implementing policies that reduce their own revenue.
Key insights
- The proposed auction uses a closed-envelope format where the lowest bidder wins, which the authors argue increases the risk of the 'winner's curse,' where the winner's bid is higher than the asset's value or the winner is less efficient than other participants.
- The authors recommend transitioning to an open, second-price auction format to better mitigate the winner's curse and simplify bidding strategies.
- The proposed M&V methodology relies on a difference-in-differences (DD) approach with randomly allocated treatment and control groups, but the authors warn that this restricts EE actions only to the treatment group, leaving potential efficiency gains unexplored.
- As an alternative to the DD method, the authors suggest 'synthetic control' to allow all units in a lot to receive EE measures without compromising the ability to estimate energy savings.
- There is a fundamental misalignment of interests because electricity distributors are the buyers of the avoided energy credits, yet their revenue is based on total consumption, meaning they are implementing a policy that reduces their own income.
- Roraima is uniquely isolated from Brazil's National Interconnected System (SIN), relying on expensive and polluting diesel thermoelectrics and imports from Venezuela via the Guri line.
- Roraima's electricity tariffs are among the highest in Brazil due to high consumer dispersion and energy losses above the national average.
- The authors conclude that the Roraima pilot is not an ideal test for a replicable national model because the state's energy characteristics are too atypical compared to other Brazilian states.
Cite the original document
- APA
- Schutze, A., Holz, R., & Assunção, J. (2020). Potenciais riscos de implementação para o piloto do leilão de eficiência energética de Roraima. Climate Policy Initiative. https://www.climatepolicyinitiative.org/wp-content/uploads/2020/08/200825-RELATORIO-Potenciais-riscos-de-implementacao-para-o-piloto-do-leilao-de-eficiencia-energetica-de-Roraima-1.pdf
- Chicago
- Schutze, Amanda, Rhayana Holz, and Juliano Assunção. Potenciais riscos de implementação para o piloto do leilão de eficiência energética de Roraima. Climate Policy Initiative, 2020. https://www.climatepolicyinitiative.org/wp-content/uploads/2020/08/200825-RELATORIO-Potenciais-riscos-de-implementacao-para-o-piloto-do-leilao-de-eficiencia-energetica-de-Roraima-1.pdf.
- Wikipedia
- {{cite report |last1=Schutze |first1=Amanda |last2=Holz |first2=Rhayana |last3=Assunção |first3=Juliano |title=Potenciais riscos de implementação para o piloto do leilão de eficiência energética de Roraima |publisher=Climate Policy Initiative |date=August 2020 |url=https://www.climatepolicyinitiative.org/wp-content/uploads/2020/08/200825-RELATORIO-Potenciais-riscos-de-implementacao-para-o-piloto-do-leilao-de-eficiencia-energetica-de-Roraima-1.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}
- BibTeX
- @techreport{schutze2020potenciais, author = {Schutze, Amanda and Holz, Rhayana and Assunção, Juliano}, title = {{Potenciais riscos de implementação para o piloto do leilão de eficiência energética de Roraima}}, institution = {Climate Policy Initiative}, year = {2020}, month = aug, url = {https://www.climatepolicyinitiative.org/wp-content/uploads/2020/08/200825-RELATORIO-Potenciais-riscos-de-implementacao-para-o-piloto-do-leilao-de-eficiencia-energetica-de-Roraima-1.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }
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