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Koh Samui

Blackout on Koh Samui, Koh Pha Ngan after navy ship anchor damages underwater cable

Tanutam Thawan



Photo via Facebook/โฆษกกองทัพเรือ (Royal Thai Navy spokesperson)

A widespread blackout swept over Koh Samui and Koh Pha Ngan after a Thai navy ship anchor dropped on an underwater cable which supplies power to the islands in the Gulf of Thailand off the Surat Thani coast.

The 115kv cable runs from Nakhon Si Thammarat’s Khanom district to Koh Samui. The anchor damaged the cable about 2 kilometres out from the island, blacking out the tambons Bo Phut, Mae Nam and Maret, the Provincial Electricity Authority district manager Jakkrit Meedet told the Bangkok Post. The repair will take several days.

On the PEA Koh Samui Facebook page, the authority said electricity supply will be circulated for 1 hour per area and outage for 3 hours per area. Additional power generators are being sent to the island today. The authority is still supplying electricity to hospitals on the islands.

Apparently a similar incident happened back in 2018, Jakkrit says, and 6 mobile power-generating trucks were used to supply electricity to the island.

SOURCES: Bangkok Post | Facebook


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  1. Avatar

    Thai john

    Tuesday, March 9, 2021 at 10:52 am

    I’m VERY surprised they told it like it is and not “Burmese fishermen dropped an anchor causing the blackout.”

  2. Avatar

    Toby Andrews

    Tuesday, March 9, 2021 at 11:00 am

    The mayor of Koh Samui made a similar statement as the Duke of Wellington.
    “I don’t know what they do to the enemy but they frighten me.”
    In Thai of course.

  3. Avatar

    Anthony J Hartnell

    Tuesday, March 9, 2021 at 1:48 pm

    That is the 3rd time in less than 20 years the “NAVY” who should know where the cable is, have done the same incredibly stupid thing. Fire the Captain and anyone else involved in this grossly incompetent, totally avoidably incident.

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