This page aims to coordinate the efforts of mapping electricity-related objects in the Philippines.
- 1 Power Grid Status
- 2 Description of power companies
- 3 Guidelines
- 4 Power lines mapped
- 5 Components of power lines
- 6 Number of towers that were painted with aluminum or zinc paint
- 7 Number of retired structures
- 8 Line and structure references
- 9 Abbreviation of substations and power plants
- 10 Mapped transmission and subtransmission lines constructed by each companies
- 11 Power stations/substations mapped
- 12 Tower configurations/designs
- 13 List of relocated or reused and retired structures
- 14 Statistics
Power Grid Status
Most power transmission lines are operated, maintained, and developed by the National Grid Corporation of the Philippines (NGCP), while power generating sites are owned by various companies. The government-owned National Transmission Corporation (TransCo), however, actually own the transmission lines and facilities that are being operated and maintained by NGCP, in accordance with Section 8 of the Electric Power Industry Reform Act (EPIRA) or Republic Act 9136 which states that no person, company, or entity other than TransCo who shall own any transmission facilities. It is currently divided into three grids: the Luzon Power Grid, the Visayas Power Grid, and the Mindanao Power Grid. They are further subdivided into dozens of transmission lines, which carry up to 500 kilo volts of energy.
Minor lines are feeders operated by distribution utilities, like the Manila Electric Company (Meralco), and local electric cooperatives/companies, which may also operate subtransmission lines between substations within their power networks and the main power grid by NGCP. The minor lines feed power from the substations to residential and industrial users (although some industrial users also feed power from the subtransmission lines operated by utilities or local electric cooperatives/companies).
The Luzon Grid is the largest of the three principal power grids in the Philippines and mostly consists of a network of 230,000 volt transmission lines. Transmission lines with voltages of 115,000 volts are found in Ilocos Region, connecting the respective NGCP substations to wind farms such as Caparispisan and Burgos and also used on some subtransmission or power lines in Cavite and Bulacan. The grid also consists of 500,000 volt transmission lines, which usually consists of larger towers or rarely, steel poles. The four 500 kV lines currently in service are the San Jose-Tayabas, Tayabas-Alaminos-Dasmariñas, Kadampat-San Manuel-San Jose, and Ilijan-Alaminos transmission lines which were commissioned in 1997, 1999, and 2001, respectively. The Tayabas-Naga transmission line, the southern portion of the 500kV transmission backbone, is currently energized at 230kV despite the usage of 500kV-designed lattice towers. More 500 kV transmission lines will serve the Luzon Grid in the future via the currently under construction 500,000 volt power lines such as the Mariveles-Hermosa, Hermosa-San Jose, and Hermosa-Castillejos lines. It is connected with the Visayas Grid via the HVDC Leyte-Luzon, a high-voltage direct current transmission line and submarine cable with a transfer capacity of 440 MW between Naga and Ormoc and was commissioned in 1998.
The major power line of the Luzon Grid is the Sucat-Paco-Araneta-Balintawak transmission line, a single-circuit, three-part, 90 km long transmission line serving Metro Manila and was commissioned in 2000. Another major power line of the grid is the Hermosa-Duhat-Balintawak transmission line which is a single-circuit, two-part (formerly direct tap connection or one-part prior to the completion of the line's cut-in connection to Meralco Duhat Substation in Duhat, Bocaue, Bulacan on November 16, 2009), 86.4 km long (formerly 91 km prior to the relocation of the line's San Simon-Pulilan segment along North Luzon Expressway (NLEX) in 2011) power line serving the Central Luzon provinces of Bataan, Pampanga and Bulacan, and Metro Manila and went into service in June 1994. Other major power lines of the Luzon Grid include the Biñan-Muntinlupa, Dasmariñas-Las Piñas, Bay-Biñan, Mexico-Balintawak, San Rafael-Balintawak, and San Jose-Balintawak transmission lines, also serving Pampanga, Bulacan, and Metro Manila, as well as the Southern Luzon provinces of Laguna and Cavite. In the future, more 230 kV power lines will serve Metro Manila, such as the proposed Taguig-Taytay transmission line.
Some power lines of the Luzon Grid serve economic or freeport zones and industrial areas, like the Limay-PEZA transmission line which serves Freeport Area of Bataan (FAB) in Mariveles, Bataan, Concepcion-Clark serving Clark Freeport in Pampanga and Tarlac, MSPP-Subic and Subic Bay Diesel Power Plant power lines serving Subic Bay Freeport Zone (SBFZ) in Morong, Bataan and Olongapo City, Zambales, and Mexico-Calumpit 69,000 volt line serving various industrial areas in San Simon, Pampanga.
In Metro Manila, there are currently three main load sectors which are:
- Sector 1 serving through Balintawak, Paco, and Duhat substations. Both Paco and Duhat substations are wholly owned by Meralco, while Balintawak substation shares space with Meralco.
- Sector 2 serving through Taytay and Araneta substations.
- Sector 3 serving through Muntinlupa and Las Piñas substations.
The Visayas Grid mostly consists of a network of 138,000 volt transmission lines. Transmission lines with voltages of 230,000 volts are used on its bulk power transmission lines as well as on some submarine cables. It also consists of five small grids (sub-grids) connected with submarine cables which are Leyte-Cebu, Cebu-Negros, Negros-Panay, and Leyte-Bohol. They are arranged in a radial configuration, that may disconnect one sub-grid in case a fault develop on one submarine cable interconnection. In the future, it will be connected to the Mindanao Grid through a submarine cable from Santander to Dipolog, which unifies the three principal grids, and between off-grid Mindoro and Luzon, to increase power reliability in the off-grid island. It is connected with the Luzon Grid via the HVDC Leyte-Luzon line.
Like with the Visayas Grid, the Mindanao Grid also consists of 138,000 volt transmission lines. Power lines with voltages of 230,000 volts are used on its bulk power transmission lines. The grid primarily relies on hydropower. Currently, it is isolated from the Luzon and Visayas Grids. It will be connected with the Visayas Grid through a submarine cable in the future, which unifies the three principal grids.
Power lines in off-grid areas consists of a network of 69,000 volt power lines owned by the government-owned National Power Corporation (NAPOCOR) through the Small Power Utilities Group (SPUG) and relies on power barges which are power plants installed on an existing ship.
Description of power companies
National Grid Corporation of the Philippines
operator=National Grid Corporation of the Philippines
The National Grid Corporation of the Philippines (NGCP), a private company given a 50-year concession to operate and expand the Philippine power grid, operates most transmission lines in the Philippines. NGCP-operated transmission lines, with voltages of 69 kV, 115 kV, 138 kV, 230 kV, 350 kV DC, and 500 kV, connects power plants with its substations, and feeds them to utility/cooperative owned substations via sub-transmission lines (69 kV and 115 kV), although the utilities/cooperatives may own their own subtransmission lines, mostly lines once operated by NGCP.
Most major NGCP lines and substations have been mapped in Luzon, but there are still a number of gaps to be filled, such as line info (voltage, conductor count) and missing substations. Backbone power lines in Visayas are mostly mapped, but there remains a number of gaps, such as missing lines and cables, and substations, and cleanup of lines added by blocked user "bryanpiczon" and related accounts is ongoing. Progress in Mindanao is almost complete, but major lines are still incomplete, especially in Zamboanga Peninsula and Caraga.
National Transmission Corporation
owner=National Transmission Corporation
The National Transmission Corporation (TransCo) is a government-owned and controlled corporation that was created in 2001 through the Electric Power Industry Reform Act (RA 9136). It is the owner of the country's power grid that is being operated, maintained, and developed by NGCP. The company has also branches on some freeport or economic zones which serves as a power provider on those areas, such as its Freeport Area of Bataan (FAB) branch in Mariveles, Bataan. It also operated and maintained the country's transmission facilities from March 2003 to January 2009.
National Power Corporation
operator=National Power Corporation
The National Power Corporation (NAPOCOR) is a government-owned corporation that provides power to areas that are not connected to NGCP grids, manage water resources for power generation, and to optimize the use of other power generating assets. It also operated, owned, and maintained the country's transmission lines and facilities, until the turnover of operations, ownership, and maintenance of transmission facilities to TransCo in March 1, 2003
Manila Electric Company
Manila Electric Company (Meralco) also operates a network of transmission lines, called sub-transmission lines, that uses either 115 kV or 69 kV. The sub-transmission lines feed power from large substations mainly operated by the National Grid Corporation of the Philippines to Meralco's distribution substations, which may serve a part of a city or municipality or even a whole city/municipality. Occasionally, sub-transmission lines may feed power from a power plant or link to a substation that serves a large industrial customer.
Mapping of Meralco 115 kV and 69 kV sub-transmission networks remains slow, though some lines (or portions of it) has been mapped. 34.5 kV, 13.8 kV and 4.8 kV lines is marginally covered, since they are not as very visible as many sub-transmission lines.
TODO: Add more guidelines on mapping power facilities and power lines
- Power generators/power plants are sometimes called "power stations". Do not tag them as power=station. Instead, tag them as power=plant. The generators inside would get the power=generator tag.
- Power stations are individually named (in most cases) and are called "substations" (e.g. "San Jose del Monte Substation"). Do not tag them as power=sub_station. Instead, tag them as power=substation.
- Sub-transmission lines (69 kV to 115 kV, except for two lines in Ilocos Region, which are transmission lines instead) mounted on tubular steel, concrete, or wood poles, usually shared with minor power lines and telephone/cable television lines, like those owned by the National Grid Corporation of the Philippines, Meralco and some electric cooperatives/companies on most provinces, are to tagged as power=tower(usually for H-frames and lattice structures) or power=pole(for most structures) and the specific tower or pole design, commonly flag, triangular, H-frame, or asymmetrical, depending on the arrangement of the cables and insulators on the pole, whether the insulators are mounted on a cross-arm or on the pole itself. Some utility poles have designs other than the usual cross-arm mounted insulator type, like flag, triangular, or asymmetrical (with insulators mounted on the pole or on an adaptor made from cross-arms typically found on most poles) but they should be tagged with power=pole. Insulators or cross-arms only carrying ground wires should not be considered when tagging design of a sub-transmission pole or utility pole.
- Power lines below 69 kV (i.e. all distribution lines, between 220 V and 13.8 kV or 34.5 kV) should be mapped as power=minor_line. If line has voltages higher than 69 kV (i.e. all transmission and subtransmission lines), they should be mapped as power=line. The frequency of the power grid in the Philippines is 60 Hz, except high-voltage direct current, like the HVDC Luzon Leyte, which should be tagged with frequency=0, used to mark HVDC or DC contact lines or third rail used for railways and rapid transit systems.
- Tagging a tower or line with owner=National Transmission Corporation is optional. If the tower's danger plate sign says "TransCo Property" either because a line was constructed when TransCo was still the operator of the transmission facilities or even though that line or structure was commissioned by NGCP, the said type of danger plate sign is still being used (i.e. lattice towers 255, 256, 266, and 267 of Hermosa-Duhat-Balintawak transmission line), you may tag them. The reason for the latter is because the transmission facilities are still actually owned by the government through TransCo, featured on a document containing the plan of a transmission project which type of danger plate sign should be place on that type of structure (i.e. danger plate sign with NGCP Property on steel poles while TransCo on lattice towers like the San Simon-Pulilan segment of Hermosa-Duhat-Balintawak line, TransCo on steel poles and NGCP on lattice towers, or all types of structures have the danger sign with NGCP/TransCo) and was approved by NGCP, and that pattern was ordered to workers such as linemen by NGCP.
- If a tower that is made of steel was painted with aluminum paint, you may tag it as colour=aluminum or colour=zinc.
Here is a list of some common voltages used in the Philippines. These include common voltages in power lines as well as secondary voltages of distribution transformers
|Type||Voltage||Voltage level code or number||Description||Appearance||Image example|
|Distribution||110/220 split-phase or 220 volt (single phase residential connection), 110/190 , 110/190-220 (small commercial connection), 254/440 (large commercial connection)||None||Customer power supply voltages, supplied by transformers or a kiosk-type substation (for large customers). 110/220 split-phase (connections mostly get 220 V but some homes may have 110 V supplies) or 220 V single-phase is used in domestic supplies, while 110/190 small business three-phase, 110/190-220 high-leg delta, and 254/440 V large commercial three-phase are used by businesses.
110/220 and 254/440 volts (or nominally 120/240 and 277/480) are generally used on distribution systems by large private utilities like Meralco, VECO, Davao Light, and CEPALCO. Small local utilities that are not cooperatives like CELCOR, FBIC and IEEC use the 110/220 V system, but uses 110/190 V for large customers.
|3620/6280||2||Distribution voltage still used on some areas of Metro Manila, and fed by the 34.5 kV system. Most of these systems are already obsoleted (customers connected to 6.28 kV systems being reconnected to the 34.5 kV system, 6.28 kV lines below 34.5 kV lines discarded, or 6.28 kV-only lines replaced by 34.5 kV lines), but still exist on parts of Manila, Pasay, Quezon City, and Parañaque.||Small poles with pin insulators. Distribution lines by Meralco generally use taller poles, with some three wire lines without cross-arms. Single-phase lines generally have no cross-arm, but most new lines have a cross-arm because of an additional ground wire (for lightning protection).
Meralco's 34.5 kV system was primarily for large business service in Metro Manila and other large cities (all primary distribution elsewhere are at 34.5 kV), and all other customers were fed by 6.28 kV feeders supplied from the 34.5 kV system through distribution substations. Since the 2000s, all new primary feeders has since used 34.5 kV and most 6.28 kV lines and feeding substations have been converted, abandoned or dismantled (except in Manila).
These lines will generally provide the final distribution through transformers mounted on poles or placed on a concrete pad. Appearances of pole-mounted transformers vary by voltage level:
|7970/13800 (or 7620/13200)||3||Standard three-phase distribution line voltage by many electric cooperatives and other utility companies (except VECO), but also by Meralco (in northern Bulacan, southern Cavite, part of central Laguna, and Batangas City - San Pascual area). May be found under a 69 kV subtransmission line as a feeder.|
|13200/23000||None||Standard three-phase distribution line voltage by Visayan Electric Company (VECO).|
|20000/34500||4||Standard distribution voltage used by Meralco, but also used by Cagayan Electric Power and Light Company (CEPALCO) in some lines in Cagayan de Oro.|
|Subtransmission||69000||5||Typical subtransmission line voltage by NGCP and many provincial electric cooperatives. Also used by Meralco on subtransmission line in Bulacan and Batangas City and the Meralco-owned Clark Electric Distribution Company (CEDC) serving Clark Freeport.||
|Subtransmission or transmission||115000||6||Standard subtransmission voltage by Meralco, especially on Metro Manila, Laguna, Cavite, Rizal and most of Bulacan. Used also by NGCP on some subtransmission or power lines in Cavite and Bulacan, and transmission lines in Ilocos Region.||
|Transmission||138000||7||Typical voltage of NGCP transmission lines in Visayas and Mindanao.||
|230000||8||Typical voltage of NGCP transmission lines in Luzon and bulk power transmission lines in Visayas and Mindanao.|
|350000||None||Voltage used on HVDC Leyte-Luzon transmission line.||
|500000||9||Typical voltage of NGCP bulk power transmission lines in Luzon.||
See WikiProject Power networks/Philippines/Operators for guidance when tagging operators of any power line in the Philippines by region.
Examples of mapping power lines and structures
Power lines mapped
Components of power lines
Number of towers that were painted with aluminum or zinc paint
Number of retired structures
Line and structure references
Abbreviation of substations and power plants
Mapped transmission and subtransmission lines constructed by each companies
Power stations/substations mapped
- SPQ2-A - Has triangular placement of insulators. Tower design is triangle.
- SPQ2-B - Has insulators facing only in one direction. Tower design is flag.
- SPR2 - Has six dead-end insulators located at both sides of a pole, and suspension clamp for optical ground wire and overhead ground wires placed between them. The tower design is anchor if it changes the direction of a line and flag if it does not change.
- DQ2 - Has six insulators on the tower's crossarms. Type of tower is suspension and number of circuits is 2.
- DR2 - Same as DQ2, but the tower uses dead-end insulators.
- STY2 - Has three insulators on its crossarms and the other three crossarms are not present on other side. Type of tower is suspension and number of circuits is 1.
- STV2 - Same as STY2, but the tower type is anchor.
- DQ - Has three insulators on one side of a tower, while the other three crossarms on its other side do not have insulators on them. Tower design is incomplete tower.
- DR - Same as DQ, but it uses dead-end insulators.
- SA - Has three insulators on a delta tower. Type of tower is suspension.
- SB - Has three dead-end insulators on a delta tower. Type of tower is anchor.
List of relocated or reused and retired structures
- Total amount of existing (operational and abandoned) and proposed mapped structures: 7,472
- Lattice towers: 349 (138 kV), 2,573 (230 kV), 698 (350 kV), 1,941 (500 kV). Total: 5,561
- Steel poles: 35 (115 kV), 1,720 (230 kV), 2 (500 kV). Total: 1,757
- Wood poles: 100 (115 kV), 1 (230 kV). Total: 101
- Portal towers: 43
- H-frame: 7
- Monopole: 2
- Cement poles: 1
- Mapped substations: 61 (NGCP), 60 (Meralco), 3 (BATELEC-I), 5 (BATELEC-II), 1 (ISECO, CAGELCO-I, Isabela-I Electric Cooperative, PELCO-II, SFELAPCO, IEEE, VECO), 2 (LUECO, Davao Light), 2 (other distribution companies)
- Amount of Meralco substations by voltage:
- 230/115 kV: 6
- 230/69 kV: 1
- 115/34.5 kV: 31
- 115/13.8 kV: 4
- 115-34.5/13.8 kV:
- 69/13.8 kV: 7
- 69-34.5/13.8 kV: 1
- 34.5/6.28 kV: 3 (remaining); 4 (retired or converted to switching station or VR facility)
- Amount of retired structures: 161 (lattice towers), 111 (steel poles), 6 (portal towers), 2 (H-frame), 2 (chainette towers). Total: 286
- Amount of painted structures: 581 (steel poles), 259 (lattice towers), 2 (portal towers). Total: 842
- Amount of reused structures: 18
- Mapped power lines: 30 (NGCP), 1 (Meralco), 2 (BATELEC-I), 5 (BATELEC-II, including lines or line section divested from NGCP in 2011), 1 (LIMA Enerzone (LIMA Utilities), all from NGCP, originally commissioned by NAPOCOR). Total: 39
- Power lines commissioned by NAPOCOR: 15 (69 kV), 6 (115 kV), 18 (138 kV), 58 (230 kV), 1 (350 kV), 4 (500 kV). Total: 102
- Power lines commissioned by TransCo: 3 (138 kV), 9 (230 kV), 1 (500 kV). Total: 13
- Power lines commissioned by NGCP: 118
- 20 kV: 2 (proposed or under construction)
- 69 kV: 3 (operational), 15 (proposed or under construction). Total: 18
- 115 kV: 2
- 138 kV: 17 (operational), 14 (proposed or under construction).Total: 31
- 230 kV: 9 (operational), 44 (proposed or under construction). Total: 53
- 350 kV: 2
- 500 kV: 13
- Power lines commissioned by Meralco: 8 (69 kV), 8 (115 kV). Total: 16
- Power lines commissioned by Batangas I Electric Cooperative: 3
- Power lines commissioned by Batangas II Electric Cooperative: 8