October 20, 2021 3:52 pm

PROJECTS REPORTED BY ENDE TRANSMISSION FOR MEDIUM-TERM PLANNING (NOVEMBER 2021 – OCTOBER 2025) Within the functions of the National Committee for Cargo Dispatch (CNDC) is the programming of the operation of the Electric System maintaining the minimum performance level approved by the Electricity and Nuclear Energy Authority (AETN). It is the obligation of the transmission […]

PROJECTS REPORTED BY ENDE TRANSMISSION FOR MEDIUM-TERM PLANNING (NOVEMBER 2021 – OCTOBER 2025)

Within the functions of the National Committee for Cargo Dispatch (CNDC) is the programming of the operation of the Electric System maintaining the minimum performance level approved by the Electricity and Nuclear Energy Authority (AETN). It is the obligation of the transmission agents to inform the CNDC every six months of their maintenance requirements and the planned expansion of their facilities for the optimal operation of the Transmission System in the medium term.

In August 2021, ENDE Transmission S.A. declared the following transmission projects for the Medium Term Programming November 2021 – October 2025:

Project Length km Date of entry into operation Adaptation of 230 kV Warnes bars – Sep – 2021 Busbar Reactor Bank in Belgium (Yapacaní Substation Project) – Sep – 2021 115 kV Shunt Capacitor in Potosí (ECEBOL Potosí Plant Connection Project to SIN) – Sep – 2021 Santivañez substation expansion (Stage 1 of CAR-SAN 500kV) – Nov – 2021 230 kV Santa Cruz – Beni interconnection (Troncos-Guarayos-Paraíso-Trinidad) 400.16 Dec – 2021 Adaptation of the second triple Line Payer – Solar Oruro in 115 kV – Mar – 2022 Carrasco – Santivañez 500 kV 236.27 May – 2022 Tarija – Angostura – Bermejo 115 kV 188.85 May – 2022 STATCOM – Static Compensator in Paraíso (230 kV Santa Cruz – Beni Interconnection Project) – May – 2022 Carrasco – Gaps 500 kV 185 Mar – 2023 Umapalca – Palca 230 kV 87 Nov – 2023 Santivañez – Mizque – Sehuencas 230 kV 172.62 Jul – 2024 Mizque – Sucre II – Sucre 230 kV 185 Apr – 2024 Sucre II – Potosí II – Punutuma 230 kV 188 Apr – 2024

Proyect Longitude km Date of entry into operation
Adaptation of 230 kV Warnes bars Sep – 2021
Busbar Reactor Bank in Belgium (Yapacaní Substation Project) Sep – 2021
Busbar Reactor Bank in Belgium (Yapacaní Substation Project) Sep – 2021
115 kV Shunt Capacitor in Potosí (ECEBOL Potosí Plant Connection Project to SIN) Sep – 2021
Santivañez substation expansion (Stage 1 of CAR-SAN 500kV) Nov – 2021
230 kV Santa Cruz – Beni interconnection (Troncos-Guarayos-Paraíso-Trinidad) 400.16 Dic – 2021
Adaptation of the second triple Line Payer – Solar Oruro in 115 kV Mar – 2022
Carrasco – Santivañez 500 kV 236.27 May – 2022
Tarija – Angostura – Bermejo 115 kV 188.85 May – 2022
STATCOM – Static Compensator in Paraíso (230 kV Santa Cruz – Beni Interconnection Project) May – 2022
Carrasco – Brechas 500 kV 185 Mar – 2023
Umapalca – Palca 230 kV 87 Nov – 2023
Santivañez – Mizque – Sehuencas 230 kV 172.62 Jul – 2024
Mizque – Sucre II – Sucre 230 kV 185 Abr – 2024
Sucre II – Potosí II – Punutuma 230 kV 188 Abr – 2024
SUITABILITY OF BARS 230 KV WARNES

The objective of the project is to provide greater reliability and operational flexibility to the Warnes electric power injection and withdrawal node, by sectioning the bars and installing their respective sectioning bays and a bus coupling bay.

BANK OF BAR REACTORS IN BELGIUM (YAPACANÍ SUBSTATION PROJECT)

As part of the Yapacani 230 kV substation project, the need was identified to transfer the line reactors installed in the Carrasco Substation to the Belgium Substation, whose new location will facilitate the control of voltages in the eastern area of the Trunk Interconnection System (STI) .

115 KV SHUNT CAPACITOR IN POTOSÍ (ECEBOL POTOSÍ PLANT CONNECTION PROJECT TO SIN)

Due to the start-up of the ECEBOL Potosí cement plant, there are voltage drops in the project’s area of influence. Therefore, the 115 kV ECEBOL Potosí Connection to SIN project, in its stage 2, contemplates the installation of a 115 kV, 12 MVAr capacitor bank, in the Potosí Substation.

INTERCONNECTION 230 KV SANTA CRUZ – BENI (TRONCOS-GUARAYOS-PARAÍSO-TRINIDAD)

The main objective of the project is to improve the reliability and security of the electric power supply to the department of Beni, closing the electric ring in the North of the National Interconnected System, as well as the substitution of diesel generation in Trinidad and Guarayos, through the laying of the second three of the 230 kV Belgium-Troncos transmission line and the construction of the 230 kV Troncos-Guarayos-Paraíso-Trinidad transmission line. Likewise, it will create a new STI withdrawal point for the demand served by the distributor CRE in the town of Ascensión de Guarayos, currently constituted as an isolated system.

SUITABILITY OF THE SECOND TERNA PAYER LINE – SOLAR ORURO IN 115 KV

The objective of the project is to make the two stages of the 100 MW “Oruro Photovoltaic Solar Plant” more flexible to the Trunk Interconnection System (STI), by installing two 115 kV line bays at the ends of Pagador and Solar Oruro and the adaptation of the respective transmission line connections, making the operation of the second triple of the 115 kV Pagador – Solar Oruro transmission line independent.

500 kV CARRASCO-SANTIVAÑEZ TRANSMISSION LINE AND ASSOCIATED SUBSTATIONS

The Carrasco – Santivañez 500 kV line constitutes an energy corridor that provides greater reliability and flexibility, and allows better use of the generation of the system through the construction of the Carrasco 500/230 kV Substation, 500 kV Carrasco electric transmission line- Santivañez and 500/230 kV Santivañez Substation.

TARIJA – ANGOSTURA – BERMEJO 115 KV

The project allows the injection of the electrical energy generated by the La Ventolera wind farm into the Trunk Interconnection System (STI). Likewise, it enables the creation of a retirement node that reliably and safely supplies electricity to the population of Bermejo. In addition to displacing local generation based on thermoelectric units.

BAR REACTOR IN CUMBRE (UMAPALCA PROJECT – PALCA)

In order to better control reactive energy in the North Area, the 230 kV Umapalca – Palca Line project includes the installation of a three-phase reactor of variable power in 230 kV bars at the La Cumbre substation.

CARRASCO TRANSMISSION LINE – 500 KV GAPS AND ASSOCIATED SUBSTATIONS

This new electrical link will allow a greater flow of energy, will provide greater reliability and flexibility to the Santivañez – Carrasco – Las Brechas energy corridor at 500 kV. In addition, it will make it possible to take better advantage of the generation of the system avoiding transport restrictions and will facilitate international interconnection projects with Brazil and / or Argentina.

LINEA UMAPALCA – PALCA 230 KV

The objective of the project is to allow the injection of the electrical energy generated by the Miguillas hydroelectric plants (Palillada and Umapalca) to the National Interconnected System (SIN) at 230 kV. As part of the project, it also seeks to strengthen the Northern Area of the SIN, providing greater reliability, operational flexibility and improving voltage control.

SANTIVAÑEZ – MIZQUE – SEHUENCAS 230 KV

The Santivañez – Mizque – Sehuencas 230 kV line project will allow the injection of the energy generated by the Ivirizu hydroelectric plants (Sehuencas and Juntas) to the Trunk Interconnection System (STI). Subsequently, a 230 kV line to Sucre is planned from the Mizque substation.

MIZQUE – SUCRE II – SUCRE 230 KV

The implementation of the project “Transmission Line Mizque – Sucre II – Sucre in 230 kV”, is part of the reinforcement of the southern area of the National Interconnected System (SIN). The objective of the project is to enable the injection to the SIN of the energy generated by the Sehuencas and Juntas Hydroelectric Power Plants, to improve the quality of electricity supply to the city of Sucre and nearby towns. Likewise, a second 230 kV link is consolidated between the Central Area and the Eastern Area to improve the reliability, quality, flexibility and security of the electric power supply.

SUCRE II – POTOSÍ II – PUNUTUMA 230 KV

The project aims to improve the quality and reliability of the electric power supply between the cities of Sucre and Potosí and install a new electric power withdrawal node south of the city of Potosí, to meet the demand of the mining industry settled in this area. , through the construction of the 230/115 kV Potosí II electrical substation, the 230 kV Sucre – Potosí II – Punutuma electrical transmission line and the 115 kV Potosí II – Potosí electrical transmission line.