The interruptions are planned between Monday, 2 November, and Friday, 6 November, with some lasting just 30 minutes and others potentially extending to three hours.

The affected municipalities are Alcochete, Almada, Barreiro, Cascais, Chamusca, Loures, Mafra, Montijo, Odivelas, Sintra and Vila Franca de Xira.

Most of the work will take place during the early morning, although some locations face interruptions extending into the afternoon.

Importantly, the scheduled cuts will affect specific streets and postal code areas rather than entire municipalities.

Places the interruptions will take place

Monday, 2 November

The first scheduled interruptions will affect Barreiro, Odivelas and Sintra.

In Barreiro, parts of Alto do Seixalinho, Santo André and Verderena are scheduled for a brief interruption between 5 am and 5:31 am.

In Odivelas, parts of Pontinha and Famões could lose electricity between 5 am and 6 am.

Sintra will see two periods of maintenance, with work scheduled between 8 am and 10 am in São João das Lampas and Igreja Nova and Cheleiros, followed by further interruptions in Colares between 10:30 am and 12:30 pm.

Tuesday, 3 November

Five municipalities are included in Tuesday’s schedule: Barreiro, Vila Franca de Xira, Alcochete, Cascais and Chamusca.

In Barreiro, two brief interruptions are planned between 5 am and 5:31 am and between 9 am and 9:31 am.

Vila Franca de Xira will experience work in Alverca do Ribatejo and Sobralinho, with interruptions scheduled between 5am and 6am and again between 8am and 10am.

Alcochete has a planned interruption between 6 am and 7 am.

In Cascais and Estoril, work is scheduled between 8 am and midday, affecting different postal code areas during two separate periods.

The longest interruption of the day is expected in Chamusca and Pinheiro Grande, where electricity could be unavailable between 11am and 2pm.

Wednesday, 4 November

Maintenance will return to Vila Franca de Xira, Alcochete, Sintra and Barreiro.

In Vila Franca de Xira, parts of Póvoa de Santa Iria and Forte da Casa are scheduled for an interruption between 5am and 6am.

Alcochete will have a shorter interruption between 6 am and 6:30 am.

In Sintra, work is planned in Almargem do Bispo between 8 am and 10 am, followed by further maintenance in other parts of the municipality between 10:30 am and 12:30 pm.

Barreiro will also experience a brief interruption between 9 am and 9:30 am.

Thursday, 5 November

Four municipalities are included in Thursday’s schedule: Vila Franca de Xira, Montijo, Mafra and Chamusca.

Vila Franca de Xira has a planned interruption between 5 am and 6 am, while Montijo and Afonsoeiro will be affected between 6 am and 7 am.

In Mafra, parts of Carvoeira are scheduled for maintenance between 10:30 am and 12:30 pm.

Chamusca faces another three-hour interruption, between 11 am and 2 pm.

Friday, 6 November

The week’s final scheduled maintenance will affect Almada and Loures.

In Almada, parts of Laranjeiro and Feijó are scheduled for an interruption between 4 am and 5 am. Further work in Charneca de Caparica and Sobreda is planned between 6 am and 6:31 am.

In Loures, parts of Moscavide and Portela could lose electricity between 5 am and 6 am.

E-Redes explains that planned interruptions allow technicians to carry out repairs, replace equipment and maintain electricity infrastructure safely.

The work can involve electricity cables, transformers and other components of the distribution network.

Why this is taking place

Unlike unexpected power failures caused by storms or equipment faults, these interruptions are scheduled in advance.

According to E-Redes, maintenance interruptions are generally limited to small geographical areas and may affect only individual streets or groups of buildings.

The company says approximately 2,000 of its 6.5 million customers are affected by planned interruptions during an average week.

Where contact details are available, E-Redes also provides advance notification to customers who may be affected.

Residents should consult the E-Redes website or its Digital Customer Service portal to confirm whether their address falls within a scheduled interruption area.

The company’s online service provides information about planned maintenance, including the affected locations and expected duration.

People working from home or relying on electrical equipment may want to prepare for a temporary interruption by charging essential devices in advance.

E-Redes also advises that electricity can be restored as soon as maintenance is completed, meaning the published finishing time should not be considered an exact guarantee.

Anyone experiencing an unexpected outage can report the problem through E-Redes’ digital services or its free 24-hour electricity fault line, 800 506 506.

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