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Reason for the daily Blackouts in Davao

March 25, 2009

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I’m sure by now you’ve noticed the Blackouts since last weekend. And we thought it was just an isolated case, Davao again experienced it daily this week. Well, according to the National Grid Corporation of the Philippines, they’re sorry for the blackouts and they’re more sorry that Davao and the whole southern Mindanao will still be experiencing it until “further notice”.  

My good friend Mr. Bariles, Avel Manansala, was able to secure a press release from NGCP. The reasons are as follows:

  • A supply route, the Kibawe-Davao 138 kilovolt line no. 1 is out since 8:30 in the evening last Friday, March 20 when eight light-weight structures in Balintawak, Kibawe, Bukidnon, toppled due to strong winds and heavy rains, aggravating the situation;
  • The combined load of line nos. 1 and 2 is presently absorbed and carried by one line (line no. 2) which could not transport the whole load requirement. To prevent overloading which would affect the entire power system, the NGCP resorted to load-shedding;
  • the Kabacan-Nuling 138 KV line and Kabacan-Tacurong 138 KV line, is undergoing repairs which was bombed last March 16, 2009.

 

Here’s the full transcript of the PRESS RELEASE from the National Grid Corporation of the Philippines

March 23, 2009. General Santos City

All power customers served by NGCP-District 6 are experiencing rotational brownouts since March 16, 2009 due to a constrained power transmission network leading to southwestern Mindanao. A supply route, the Kibawe-Davao 138 kilovolt line no. 1 is out since 8:30 in the evening last Friday, March 20 when eight light-weight structures in Balintawak, Kibawe, Bukidnon, toppled due to strong winds and heavy rains, aggravating the situation.

National Grid Corporation of the Philippines (NGCP) Mindanao head Emmanuel Abellanosa said the parallel supply line to southwestern Mindanao, the Kibawe-Davao line no. 2 is being used currently to feed power to the whole of Southern Mindanao. The combined load of line nos. 1 and 2 is presently absorbed and carried by one line (line no. 2) which could not transport the whole load requirement. To prevent overloading which would affect the entire power system, the NGCP resorted to load-shedding.

Another double-circuit line, the Kabacan-Nuling 138 KV line and Kabacan-Tacurong 138 KV line, isundergoing repairs, specifically on tower 142 at Malabuaya, Kabacan, North Cotabato which wasbombed last March 16, 2009.

The two recent incidents have reduced the capacity of the supply network going to General Santos, Sarangani, South Cotabato, North Cotabato, Sultan Kudarat, Maguindanao, and Cotabato City. As a result, Abellanosa said, NGCP’s Southwestern Mindanao District (District 6) is being given 30 megawatt less its usual power supply. This will remain so until the completion of the repair of the Kibawe-Davao line no. 1 targeted within this week.

The area control center of District 6 is closely coordinating with NGCP’s customers in the implementation of the curtailment scheme. Abellanosa clarified though that NGCP only gives power utilities their corresponding load limits under the curtailment scheme, while the latter decide which feeders to drop at planned periods. The cooperation of power customers is very crucial at this time so implementation can proceed smoothly, Abellanosa said.

Abellanosa further said they are exerting all efforts to finish the repairs as early as possible to normalize the power situation in Southern Mindanao.

The NGCP is appealing for public understanding on the temporary abnormal power situation.

###

(Original Signed)
MANUEL A. HAMOY, JR.
Department Manager, District 6
NGCP

So, lets prepare and expect the worst.. 

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8 Comments leave one →
  1. March 25, 2009 10:58 am

    until further notice? so, i expect nanaman na may blackout this afternoon.. another reason to go to the mall. hehehe

  2. March 25, 2009 4:29 pm

    Hmmm. What do they mean by “lightweight structures”? I’m wondering how much of the 138 kV transmission in Mindanao is made up of “lightweight structures”? Are these rare? Prevalent? If rare, why were they there? Lots of questions here.

  3. Belinda Sales Canlas permalink
    March 26, 2009 7:42 am

    Magandang GenSan!

    Thank you for the story.

    It makes my job so much easier.

    I appreciate it.

    Belinda

  4. Belinda Sales Canlas permalink
    March 26, 2009 7:56 am

    Hello Mr. Nick,

    Are you based in Davao City? If you are, kindly look up Ms. Bambi Capulong, our Corporate Communications Officer for NGCP-District 5. She can answer your questions.

    If you are in Gen. Santos City, please visit our office, I can show you some photos of our “lightweight structures”.

    I would be glad to assist you.

    Belle Sales Canlas
    NGCP-District 6
    Gen. Santos City

  5. March 26, 2009 11:24 am

    Belle – Thanks for the gracious response. I reside in Malaybalay, Bukidnon. But I’m actually in Quezon City most of the time. But it’s always good to have email contacts for NGCP personnel, so that we can get clarification.

    Your participation on blog comments is a good move for NGCP. Keep it up. You should find a way to post the pictures of the structures so we can see it on-line. Traveling to GenSan isn’t very practical for most people.

    • Belinda Sales Canlas permalink
      March 27, 2009 8:46 am

      Hello Mr. Nick,

      Thank you for acknowledging my response.

      Please visit our website: http://www.ngcp.com.ph.

      You will learn more about the National Grid Corporation of the Philippines or NGCP.

      Daghang salamat.

      Belle

  6. March 27, 2009 8:54 am

    Belle – ACK!! A long flash intro that can’t be killed. I have to watch and listen to that each and every time I visit the corporate site? Please prevail on your corporate web/marketing gurus to get rid of that. At least a clear link to let me bypass it. It’s embarrassing to be in a corporate business environment (like a meeting), wanting to check out the NGCP site for something, and have that audio pop up. What were they thinking?

  7. Belinda Sales Canlas permalink
    March 30, 2009 8:42 pm

    Hello Mr. Nick,

    I will relay the message.

    Just the same, thank you for visiting the site.

    Your candor is refreshing.

    Belle

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