Questione giuridica chiave
Whether the civil proceedings should be stayed until the Federal Electricity Commission decides the tariff dispute.
Decisione estratta
The stay was not justified because the commission proceedings had no suspensive effect and any later tariff reduction could be handled through restitution or compensation.
Motivazione estratta
The refusal to stay did not cause irreparable legal harm; the commission had not ordered a reduction, provisional measures had been refused, and any future overpayment could be corrected under the electricity legislation.