Grid and investments
At Rețele Electrice România, we manage the power grid in Bucharest and ten counties across the country, where we invest annually through modernization, refurbishment, and development programs that directly impact the network’s capacity to supply new consumers and improve its performance by reducing the frequency and duration of interruptions. To understand how our investment programs work, let’s start with an overview of the grid!
Some of the most important components of a power grid include:
We continuously strive to improve the quality of the distribution service for the benefit of users and to ensure the safe operation of the National Energy System. We constantly implement investment programs in the network infrastructure, modernizing power stations and integrating them into the remote-control system by replacing power transformers and other equipment. We upgrade the electrical grid, install smart meters, and provide video surveillance of electrical transformer stations to reduce associated risks.
Rețele Electrice manages
289
HV/MV transformer stations
104
MV/MV power stations
25.625
power supply points and substations
22.800 MVA
total installed capacity
15 TWh
electricity distributed annually
134.000 km
of power lines
Modernization programs
Discover our modernization programs and the new technologies we use!
A state-of-the-art technology that allows remote control of switching devices and maneuvers in the power grid. This system significantly reduces power outage durations and repair times.
Another investment we take pride in: we have installed the largest number of smart meters in Romania, and one of our main objectives is to install smart meters for all our users according to the ANRE-approved schedule. We install modern meters in both urban and rural areas.
Smart meters protect consumers in case of overvoltages. A meter that communicates in real time with the central system provides information about the location, type, and magnitude of possible network incidents, reducing intervention times and customer inconvenience, as some interventions can be performed remotely. Read more about smart meters here!
These are also part of the smart metering system. They collect information from meters and are placed in transformer substations. The data collected by smart meters allow detailed network analyses and offer a strategic advantage in areas or network segments where recorded activity falls below acceptable quality standards.
An investment in infrastructure security for electrical substations, transformer points, operational units, and storage facilities. We have installed CCTV surveillance systems for intrusion, fire, and/or access control, and we integrate their signals into IT platforms that ensure 24/7 visualization. These help dispatchers make appropriate decisions in real time and deter equipment damage or theft.
Investment plans
Find out the most relevant details about how we invest in the networks we manage!
Elements of the power grid operated in Muntenia:
- 70 HV/MV transformer stations
- 9,984 power supply points and transformer substations
- 9,574 MVA installed capacity in stations and transformer substations
Investments made between 2019 and 2023, from own funds
Between 2019 and 2023, we invested over 2.15 billion lei from our own funds in the Muntenia area.
Investment plans for 2024
In 2024, we plan to install over 81,000 smart meters in Bucharest and the counties of Ilfov and Giurgiu, along with investments of 338 million lei in network modernization, expansion, and digitalization—111 million lei for modernizing high-voltage lines and transformer stations, 46 million lei for medium-voltage lines and transformer substations, and 112 million lei for low-voltage projects.
Investments in Bucharest: modernization and integration into the remote-control system of the Filaret and Obor transformer stations, supporting over 55,000 customers, replacement of 8.8 kilometers of network on the 110 kV underground power line Filaret-Grozăvești, a project that enhances the security of electricity supply for consumers in the southern and western parts of the city, upgrading transformer substations in the Nord-Grozăvești station area to 20 kV through works impacting the Central Military Emergency University Hospital ‘Dr. Carol Davila’ and another 2,600 consumers.
Investments in Ilfov: expansion of the Solex and Otopeni transformer stations, benefiting over 25,000 consumers, construction of new medium-voltage lines to offload the medium-voltage lines in the Chiajna-Roșu area, benefiting over 21,900 customers, modernization of the medium- and low-voltage networks in Popești-Leordeni and the Pipera-Voluntari neighborhood, benefiting over 3,500 customers.
Investments in Giurgiu: modernization of seven kilometers of the Tarom medium-voltage line and associated transformer substations, benefiting over 4,800 customers, modernization of medium- and low-voltage networks, and centralization of meters at the property boundary for over 8,200 customers in Bolintin-Vale, Clejani, Valea Dragului, Isvoarele, and Stoenești.
Investment costs for network operation, maintenance, and development
2024
Elements of the network operated in Banat:
- 97 HV/MV transformer stations
- 25 MV/MV transformer stations
- 9,036 power supply points and transformer substations
- 6,691 MVA installed capacity in stations and transformer substations
Investments made between 2019 and 2023, from own funds
Between 2019 and 2023, we invested approximately 1.1 billion lei from our own funds in the Banat region.
Investment plans for 2024
In 2024, we plan to install about 49,000 smart meters in the counties of Arad, Caraș-Severin, Hunedoara, and Timiș, along with investments of 228 million lei in modernizing, expanding, and digitalizing the power networks—58 million lei for modernizing high-voltage lines and transformer stations, 60 million lei for medium-voltage lines and transformer substations, and 60 million lei for low-voltage projects.
Investments in Arad: modernization of the high-voltage line CET Arad-CFR Sofronea and completion of modernization works on the medium-voltage lines Gurahonț-Vârfuri, Maderat, and Sintea Mare, benefiting over 13,000 consumers.
Investments in Caraș-Severin: works on the high-voltage power line Gătaia-Bocșa and completion of modernization of the medium-voltage line Văliug, benefiting over 1,300 consumers.
Investments in Hunedoara: modernization of the high-voltage line Baru Mare-Lonea, scheduled for completion in 2025, completion of modernization works at the IRUM transformer station, benefiting over 2,000 consumers, and improving power supply reliability in the locality of Vălișoara by interconnecting two radial medium-voltage power lines, benefiting over 700 consumers.
Investments in Timiș: enhancing the security of electricity supply by implementing the remote-control system in the 110/20 kV Dumbrăvița transformer station, benefiting over 12,000 consumers, works on the high-voltage line Timișoara-Giulvaz, completion of modernization works at the Azur transformer station, benefiting over 2,800 consumers, initiation of modernization works at the Freidorf transformer station, benefiting over 1,750 consumers, completion of modernization works on the Masloc medium-voltage line, benefiting over 3,600 consumers, and improving electricity supply reliability in the northern part of Timișoara and adjacent localities, scheduled for completion in 2025, benefiting over 15,550 consumers, including the Traian Vuia Airport.
Investment costs for network operation, maintenance, and development
2024
Elements of the network operated in Dobrogea:
- 122 HV/MV transformer stations
- 72 MV/MV transformer stations
- 6,612 transformer substations
- 6,623 MVA installed capacity in stations and transformer substations
Investments made between 2019 and 2023, from own funds
Between 2019 and 2023, we invested over 900 million lei from our own funds in the Dobrogea region.
Investment plans for 2024
In 2024, we plan to install over 41,000 smart meters in the counties of Constanța, Călărași, Ialomița, and Tulcea, along with investments of 220 million lei in modernizing, expanding, and digitalizing the power networks—60 million lei for modernizing and constructing high-voltage lines and stations, 74 million lei for modernizing and constructing medium-voltage lines and transformer substations, and 48 million lei for low-voltage projects.
Investments in Constanța: commissioning of the new 110/20 kV Mamaia Nord transformer station and the new 110 kV underground power line Mamaia Nord-Năvodari, benefiting over 6,500 customers, completion of modernization works at the Cobadin transformer station, benefiting over 6,000 customers, continuation of modernization works at the Năvodari station, benefiting over 29,000 customers (scheduled for completion in 2025), modernization of the 6402 Băneasa line, benefiting over 2,000 customers, installation of bird deterrents and insulating sheaths on power lines in the Constanța area, as part of the biodiversity project Life Danube Free Sky.
Investments in Călărași: modernization of low-voltage networks by converting overhead lines and relocating meters to the property boundary in the localities of Oltenița, Ulmeni, Soldanu, Vasilați, and Răzvani, benefiting over 1,400 consumers.
Investments in Ialomița: completion of modernization works at the 110/20 kV Urziceni transformer station, benefiting over 19,000 consumers.
Investments in Tulcea: installation of bird deterrents and insulating sheaths on power lines in the Tulcea area, as part of the biodiversity project Life Danube Free Sky, modernization of low-voltage networks by converting overhead lines and relocating meters to the property boundary in the locality of Greci, benefiting 300 customers, initiation of modernization works on the A20 10000 medium-voltage line, powered by the Sarinasuf transformer station, benefiting 1,900 customers (scheduled for completion in 2026), and modernization of the A20 10902 medium-voltage line, powered by the Babadag transformer station.
Investment costs for network operation, maintenance, and development
2024
Information about network technical specifications
Electrical network installations vary from one operator to another, and specialized training is required for anyone working with our networks. If you are interested in collaborating, you can request technical specifications for our network installations through the contact form.