Brazil’s regulator delays decision on storage regulation amid grid tariff dispute

Aneel postpones ruling on energy storage tariffs, with debate focusing on transmission charge treatment and limits.

From ESS News

Brazil’s electricity regulator, ANEEL (Agência Nacional de Energia Elétrica) has postponed a decision on rules for energy storage systems after director Fernando Mosna requested more time to examine how such systems should be charged transmission and distribution use-of-system tariffs.

During its board meeting on Tuesday (August 12), the agency had appeared close to approving a 30% cap on the reduction of the amount of transmission and distribution system usage charges (known as MUST/D) for generators seeking to hybridize their assets with storage. The proposed limit had been raised from 20% in the technical department’s initial recommendation.

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