Transformer fire cuts power to thousands in South Tenerife
July 2026Published 7 Sept 2026Responsible editor: Chief Editor
- Where
- Guargacho, South Tenerife, Arona municipality
- What
- Transformer fire destroyed equipment and cut power to thousands of homes
- Response
- Firefighters from Las Chafiras with police waited for engineers to isolate supply
- Cause
- Insulating oil inside the transformer believed to have caught fire
- Outcome
- Supply restored after new transformer installed; medical centre closed temporarily
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What happened
A piece of electricity network equipment, believed to be a transformer, caught fire in Guargacho, South Tenerife, within the municipality of Arona, shortly after 7.30pm on a Thursday evening. The fire destroyed the equipment and cut power to thousands of homes in the lower part of the town, while residents in the upper area were unaffected. Firefighters from Las Chafiras, along with Local Police and Guardia Civil, attended the scene but could not tackle the blaze until electricity company engineers disconnected the supply and confirmed it was safe to do so.
The fire burned until after 11.30pm, with nearby streets closed during the response. The local medical centre was temporarily closed due to the outage, with patients redirected to a health centre in Las Chafiras. Work began afterwards to install a new transformer and restore supply.
Contributing factors
Officials believe insulating oil inside the transformer caught fire, contributing to the intensity of the blaze. The precise cause of the fire has not been confirmed.
Lessons learned
- A transformer fire involving insulating oil may burn for hours until the utility isolates the supply, so operators should pre-plan safe isolation times with local fire services.
- Loss of a local transformer can close nearby medical centres, so operators and health services should agree contingency power plans for essential facilities.
- Insulating oil can intensify a transformer fire, so owners should inspect oil condition and seals on distribution transformers as part of routine maintenance.
More lessons on fire suppression and firefighting, maintenance, inspection and ageing assets, from every incident on the register.
Not yet known
- Precise cause of the fire
- Transformer model and age
- Duration of power outage
- Cost of replacement and lost supply
This entry is updated when these are reported. Get an alert for the next one like it.
Source
Published 2026-09-07. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.
