“We are still celebrating,” Rodrigo Sauaia, president of the Brazilian Solar Power Association, Absolar, told Recharge after the regulations were approved by power regulator Aneel.

The main reason for the optimism — previous official projections pointed to 2.7GW by 2024 — comes from the industry's success in overturning a proposal by power-distribution companies to charge wire-usage fees on power generated by rooftop arrays.

“Doing