# ONS flags medium chance of surplus-energy measures during election-day operations

> The operator’s 2 October outlook said it might need to manage excess supply on 4 October, with distribution-connected solar a possible last resort.

- **Source date:** 2026-10-02
- **Original source:** [LAWINFRA](https://www.lawinfra.com.br/noticias/ons-aneel-operacao-especial-energia-eleicoes-2026)
- **Reading time:** 1 min
- **Language:** en
- **URL:** https://voltformer.com/news/ons-excess-energy-plan-election-solar-curtailment-risk-october-2026
- **Markdown:** https://voltformer.com/news/ons-excess-energy-plan-election-solar-curtailment-risk-october-2026.md

## A forecast for a low-load Sunday

LAWINFRA reported on 2 October that ONS assessed a medium probability of activating its surplus-energy management plan on 4 October, the first-round election day. The outlook followed a weekly operating-program review for 3–9 October. The plan addresses moments when available generation exceeds demand and the system’s ability to absorb or transmit the surplus.

[LAWINFRA](https://www.lawinfra.com.br/noticias/ons-aneel-operacao-especial-energia-eleicoes-2026)

## Any restriction depended on real-time conditions

The report said ONS could limit generation connected to distribution networks, especially solar, only after using generation-reduction resources under its direct control. Activation was not certain: it depended on observed load, actual output, network conditions and the final operating schedule. The notice was a preventive forecast, not confirmation that solar plants were curtailed.

[LAWINFRA](https://www.lawinfra.com.br/noticias/ons-aneel-operacao-especial-energia-eleicoes-2026)

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