Calaca power station

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{{#badges:CoalSwarm|Navbar-Philippinescoal}}Calaca power station is a 900-megawatt (MW) coal-fired power plant in Batangas, the Philippines. A proposed expansion would increase the plant's capacity by an additional 700 MW.


The map below shows the location of the plant, in San Rafael Barangay, Calaca District, Batangas Province.

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The original Calaca power station is a 600-megawatt (MW) coal-fired power station owned by DMCI Holdings in Calaca, the Philippines.[1] Units 1 and 2 of the plant, each 300 MW, were commissioned in 1984 and 1995 respectively.[2] DMCI bought the plant from the Philippine government in July 2009 for $361 million.[3]

In May 2016, SEM-Calaca began a restoration project on the original two 300-MW units of Calaca. The two units had degraded since construction, and had an output of only 500 MW. The goal of the restoration was to bring them back up to 600 MW.[4]


DMCI Power Corp. plans to expand the power station in three phases.[5] Expansion Phase I, consisting of two 150-MW units, was completed in 2015. Expansion Phase II, still under development, was initially planned as two additional 150-MW units; it was later changed to a single 350-MW unit, then to two single-unit 350-MW additional phases.[6]

Phase I

In February 2012, DMCI's Southwest Luzon Power Generation Corp. signed an P11.5-billion loan agreement with three local banks to finance Phase I of the expansion.[5] Construction on Phase I began in May 2012, with completion originally scheduled for November 2014 for Unit 3, and February 2015 for Unit 4.[7] CNEEC is the primary construction contractor on Phase I.[6] In October 2014, DMCI announced that the completion of Unit 3 would be delayed for six months.[3][8] In March 2015, Consunji announced that Unit 3 would be brought online in April 2015, and Unit 4 in June 2015.[9]

At least 600 Chinese workers were found to be working illegally at the Phase I construction site in August 2014, after a raid by a government joint task force.[10]

The Phase I units went online in March and June 2015.

Phases II & III

Two additional 350-MW coal-fired units are being planned, as Phases II and III. The two units would be built by St. Raphael Power Generation Corp., a Semirara subsidiary (which is, in turn, a DMCI subsidiary). The two additional phases would cost $1.4 billion.[11]

As of August 2013, financing discussions for Expansion Phase II were ongoing. The target completion date for Phase II is 2016-17.[7] In May 2014, DMCI announced that Phase II would be switched from two 150-MW units to a single 350-MW unit. The expansion is slated to cost P20 billion ($450 million), with a 70-30% loan-equity split.[6] Later in 2014, an additional 350-MW Phase III was announced, with no planned completion date.[3]

In July 2016 DMCI Holdings entered a 50-50 joint venture with Manila Electric to build the 700 MW phases II and III (units 5-6) of the expansion.[12] In November 2016, the Japanese Marubeni Corporation took a 20% equity stake in the project; DMCI and Manila Electric would each take 40%.[11]

As of November 2016, the consortium was in talks with U.S. firm Black & Veatch to serve as construction contractor. The project was also still waiting for permits from the Energy Regulatory Commission.[11] In June 2017, St. Raphael Power Generation Corp. announced that it plans to begin construction of Phases II and III in 2018.[13] In September 2018 the Philippine Department of Energy (DOE) listed a target date of Q1 2019 for beginning construction, and commissioning date of 2023.[14] In March 2019 the Philippine Department of Energy listed Units 5 and 6 as entering construction in the second half of 2019.[15]

In May 2019 the Supreme Court of the Philippines invalidated the plant's Power Supply Agreements (PSA's) because they had not gone through a competitive selection process (CSP), delaying development of the Calaca Phase II. In all seven plants owned by Meralco or contracting with Meralco had their PSA's invalidated by the ruling.[16] The DOE gave the completion date for the 2 x 350 MW expansion as 2025 in its August 2019 list of initiated power projects in Luzon.[17]


In January 2017 a protest organized by SAMBAT (Samahan ng mga Magbubukid ng Batangas) called on the DENR to shut down the Calaca coal-fire plant. "The Batangueños are living through the irreparable damages caused by the power plant for more than three decades now. Their houses were demolished and families dislocated; residents suffer from different illnesses such as lower respiratory tract infections, pneumonia, hypertension and diarrhea; damaged livelihood such as decreased fish catch while many others who depended on agriculture resorted to seasonal and odd jobs like construction worker, household helper, and farm worker," said SAMBAT's chairperson Agaton Bautista.[18]

Mine disaster

An accident in July 2015 at the Semirara coal mine operations killed nine workers.[19]

Project Details for Expansion Phases I-III, Units 3-6

  • Sponsor: SEM-Calaca Power Corp
  • Parent company:
  • Location: San Rafael Barangay, Calaca District, Batangas Province, Philippines
  • Coordinates: 13.93263, 120.78969 (exact)
  • Status: Units 3-4: Operating; Units 5-6: Pre-permit development
  • Gross capacity: 1,000 MW (Units 3 & 4: 150 MW; Units 5 & 6: 350 MW)
  • Type: Subcritical[2]
  • In service: Unit 3-4: 2015; Units 5-6: 2025
  • Coal type: Subbituminous
  • Coal source: Semirara coal mine
  • Source of financing: Phase I: Henry Sy-owned Banco de Oro Unibank Inc., Bank of the Philippine Islands of the Ayala Group and China Banking Corp., also owned by the Sy Group. BDO Capital and Investments Corp.[5]

Articles and resources


  1. "Coal-Fired Plants Financed by International Public Investment Institutions Since 1994", Appendix to Foreclosing the Future: Coal, Climate and International Public Finance: Investment in coal-fired power plants hinders the fight against global warming, Environmental Defense, April 2009.
  2. 2.0 2.1 "Calaca (Batangas) Coal Power Plant Philippines" Global Energy Observatory, accessed December 17, 2013.
  3. 3.0 3.1 3.2 Lectura, Lenie. DMCI’s Calaca power-plant expansion unable to meet 2015 online target. Business Mirror, 6 Oct. 2014.
  4. Calaca coal plants to get upgrade, Philippine Daily Inquirer, 10 May 2016.
  5. 5.0 5.1 5.2 Iris C. Gonzales, "DMCI seeks partners for Calaca plant expansion," The Philippine Star, February 11, 2013.
  6. 6.0 6.1 6.2 Velasco, Myrna. DMCI investing additional P20B for 350-MW expansion of Calaca plant. Manila Bulletin, 5 May 2014.
  7. 7.0 7.1 Private Sector Initiated Power Projects (Luzon), Philippines Department of Energy, 12 August 2013.
  8. Private Sector Initiated Power Projects (Luzon), Philippines Department of Energy, 30 Sept. 2014.
  9. Riza Olchondra, 150-MW DMCI plant set to start operations, Philippine Daily Inquirer, 21 Mar. 2015.
  10. Ozaeta, Arnell. Chinese workers illegally employed in Batangas power plant. Philippine Star, 30 Aug. 2014.
  11. 11.0 11.1 11.2 Marubeni taking 20% stake in Calaca coal power plant, Philippine Star, 23 Nov. 2016.
  12. "Meralco, DMCI to build new coal plant," The Standard, July 27, 2016
  13. Calaca Plant Expansion Expected To Start In 2018, Manila Standard, 26 Jun 2017
  14. Private Sector Initiated Power Projects (Luzon) - Indicative, Philippines Department of Energy, 30 Sep. 2018.
  15. Private Sector Initiated Power Project (Luzon), Department of Energy, The Philippines, Mar. 31, 2019
  16. Averting a potential power crisis, PhilStar, Jul. 10, 2019
  17. PRIVATE SECTOR INITIATED POWER PROJECTS (LUZON) COMMITTED, Philippine Department of Energy, 31 Aug., 2019
  18. Shut down Calaca coal plant, DENR told, Amihan, Jan. 10, 2017
  19. 9 workers dead after Semirara mining mishap, GMA News, Jul. 17, 2015

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