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STATISTICS PLN 2018
ISSN : 0852 - 8179
NO. 03102- 190615
Catalogue No. : 31:621.3
ISSN : 0852 - 8179
Book Size : 20 Cm x 27 Cm
Number of Page : 100
Editor : Corporate Secretary PT PLN (Persero)
PT PLN (Persero)
Prepared by : Corporate Secretary PT PLN (Persero)
PLN STATISTICS 2 0 1 8
PLN STATISTICS 2018
ii PLN Statistics 2018
PLN Statistics 2018 contains information on performances of PT PLN (Persero) and its Subsidiary Companies for Calender Year 2018 as well as the preceding years.
Data are presented in the form of tables with a breakdown for each Province within PLN’s
Constructive comments and feedback are expected for the improvement of the presentation,
and will be incorporated in the next publication.
Jakarta, June 2019
PT PLN (Persero)
iiiPLN Statistics 2018
*) Peak Load of PLN’s Power Plant, Rented and IPP
At the end of Desember 2018 PT PLN (Persero) and Subsidiary Companies owned and operated about 6,750 generating units with total installed capacity of 41,696.67 MW, of which 29,924.58 MW (71.77%) was installed in Java.
The total installed capacity decreased 5.16% compared to the end of December 2017. The total generating plant capacity broken down by type of power plant as follow : Steam Turbine 20,192.00 MW (48.43%), Combine Cycle 9,812.11 MW (23.53%), Diesel 4,383.42 MW (10.51%), Hydro 3,582.98 MW (8.59%), Gas Turbine 3,133.61 MW (7.52%), Geothermal 579.50 MW (1.39%), Solar Cell and Wind 12.54 MW (0.03%).
Total installed capacity included rental and IPP were 57,822.47 MW.
The system peak load for the calendar year 2018 was 38,769.93 MW, decreased 0.07% over the previous year. The peak load for the Java Bali system was 27,069 MW. This is down 5.47% over the previous year.
Energy Production and Purchase
The own energy production throughout the year 2018 was 178,193.86 GWh, up 6.08% over the previous year. Of the energy production, 61.71% was produced by PT PLN (Persero) Holding, and 38.29% came from Subsidiary Companies, i.e. PT Indonesia Power, PT PJB, PT PLN Batam. . Of this energy production 51,534.25 GWh (27.31%) was produced by natural gas, 110,124.32 GWh (58.36%) was produced by coal fired, 11,704.96 GWh (6.20%) was produced by oil, 10,728.68 GWh (5.69%) was produced by hydro, 4,012.81 GWh (2.13%) came from geothermal and 593,44 GWh (0.31%) was produced by others (solar cell, wind). The share of natural gas, oil and hydro decreased over the previous year, but coal and geothermal was increased
The total production (including purchase from utilities outside PLN) during the CY 2018 was 267,085.38 GWh, an increased of 12,425.60 GWh or 4,88% over the previous year. Of this energy production, the energy purchased from other utilities outside PLN amounted 78,386.92 GWh (29.35%). This was increased 5,152.22 GWh or 7,04% over the previous year. From the total energy purchased, the greater part were 10,237 GWh (13.06%) from PT Paiton Energy Company, and 8,748 GWh (11.16%) from. PT Jawa Power.
2. Transmission and Distribution
At the end of CY 2018, the total transmission lines was 53,278 kmc of which about 5,218.38 kmc was 500 kV, 3,312.47 kmc was 275 kV, 39,304.50 kmc was 150 kV, 5,341.98 kmc was 70 kV and 100.95 kmc was 25 and 30 kV transmission levels. The total length of distribution lines amounted of 953,459.51 kmc of which about 388,953.99 kmc was medum voltage lines (20 kV, 12 kV, 6-7 kV distribution networks) and 564,505.52 kmc was low voltage lines (220/380 V).
The total capacity of substation transformers operated was 131,164 MVA, increased by 15.27% over the previous year. The total substation transformers was 1,964 unit. This consisted of 69 substation transformers with 500 kV system, 33 substation transformers with 275 kV system, 1,604 substation transformers with 150 kV system, 256 substation transformers with 70 kV system and 2 substation transformers with < 30 kV system.
Total capacity of distribution substation transformers decreased by 6.60% to be 56.131MVA and the total substation transformers increased by 2.28% to be 482,514 units.
iv PLN Statistics 2018
**) Excluded non PLN Customers ***) Energy looses with kWh E-Min
3. Energy Sales
PLN’s total energy during the year 2018 was 234,617.88 GWh, up 5.15% from the previous year. Among group of customers, energy sold to Residential was the major share, consuming 97,832.28 GWh (41.70%) followed by Industry 76,946.50 GWh (32,80%), Commercial 44,027.40 GWh (18.77%), and Others (social, government office building, and public street lighting) 15,811.70 GWh (6.74%). Electricity sold to Residential, Industry, Commercial, and Others group of customers increased by 3.57%, 6.52%, 5.59%, and 7.25%.
Total number of customers was 71,917,397 at the end of 2018. This was up 5.65% from the end of 2017. PLN’s average power rate per kWh throughout the CY 2018 was 1,123 Rp/kWh, was increased compared previous year of 1,105.11 Rp/kWh.
4. Energy Losses
During the CY 2018, energy losses were 9.51%, consisting of 2.32% transmission losses and 7.37% distribution losses. This was better than the previous year 8.75%***).
5. Electrification Ratio
With the growth of total number of residential customers from 62,543,434**) at the end of CY 2017 to 66,071,133 at the end of 2017, the electrification ratio reached around 97,05%.
In CY 2018, total operation revenues reached Rp. 272,897,742 million out of which electric revenues came to Rp. 263,477,551 (96.55%), connection fees Rp. 7,309,172 million (2.68%) dan other operation revenues Rp. 2,111,019 million (0.77%).
Total operation cost amounted Rp. 308,188,889 million. Government subsidy Rp. 48,101,754 million while the operation profit came to Rp. 23,173,464 million decreased over the previous year that operation profit amounted Rp. 35,984,071 million.
The total asset amounted to approximately Rp. 1,490,353,635 million, increased 11.64% from the previous year.
7. Human Resources
By the end of December 2018, the total number of PLN employees was 54,255 employee. Employees productivity was 4,324 MWh/employee and 1,326 customer/employee.
vPLN Statistics 2018
1.1. The Capacity Factor *)
kWh gross production annually
kW installed capacity x 8.760 hours
kWh gross production is the energy (kWh) generated by the generator before deducting the energy used for own purpose (for auxiliary equipment, station lighting, etc,) or the production of electric energy measured at the generator terminal.
Installed capacity is the capacity of one generating unit as written on the generator name plate
installed capacity is as written on the name plate based on the base-load and not on the peak-load.
1.2. Load Factor *)
kWh total production annually
kW peak load x 8.760 hours
kWh total production is the total kWh produced by the generator of the PLN unit in question plus the kWh received from the other PLN units plus the kWh purchased from outside PLN (if any).
Peak Load is the highest load over reached by each system in the calendar year in question.
1.3. Demand Factor
kW peak load
kVA connected x cos
cos = 0,8
*) Circular Letter of the PLN BOD No. 006/PST/88
vi PLN Statistics 2018
1.4. Energy Losses
kWh transmission losses + kWh distribution losses x 100% kWh netto production
kWh netto production is the energy (kWh) generated by the generator, plus the energy (kWh) received from the other PLN Unit, plus the energy (kWh) purchased from outside PLN and rented (if any), minus the energy (kWh) used for central own purpose.
kWh transmission losses is kWh netto production, minus the energy (kWh) used for substation transformer own purpose, minus the energy (kWh) sent to other PLN Unit and outside PLN, minus the energy (kWh) sent to Distribution.
kWh distribution losses is the energy (kWh) sent to Distribution, minus the energy (kWh) used for distribution substation transformer own purpose, minus the energy (kWh) sold.
1.5. SAIDI (System Average Interruption Duration Index) **)
(Duration of customers who are blackout x Number of customers who are blackout) Number of customers
1.6. SAIFI (System Average Interruption Frequency Index) **)
(Number of customers who are blackout)
Number of customers
**) Blackout at distribution lines which are experienced by customers, due to interruption or maintenance at generation as well as transmission lines (Circular of the PLN BOD.
(SE Direksi PLN No. SE.031.E/471/PST/1993).
1.7. SOD (System Outage Duration) : Interruption duration which cause blackout
100 kmc transmission lines
SOD (System Outage Duration) is a performance indicator of outage duration which cause blackout at services point of transmission lines, measured with hours per 100 kmc.
viiPLN Statistics 2018
1.8. SOF (