Sector 5 is one of the districts in the south-west of Bucharest, with a highly varied structure: from well-established residential areas such as Cotroceni and 13 Septembrie, to dense neighbourhoods such as Rahova, Ferentari, Ghencea and Drumul Sarii, where old apartment blocks, individual houses and plots now being developed with new buildings all mix together. For a newly built house, a loft conversion or an extension that no longer has sufficient power, a new electrical connection (bransament) or a power upgrade (spor de putere) is required, and SUN WATT SRL handles the entire process in this area. We are an ANRE-certified firm for execution and design, and we work with the local distribution operator, Retele Electrice Romania S.A. (formerly E-Distributie Muntenia / Enel). We travel throughout Sector 5 for assessments, check the situation on site and the documents required, then prepare and submit the grid connection (racordare) file, follow up on the issuance of the Technical Connection Approval (ATR), carry out the connection (overhead or underground) and prepare the Utilisation Installation Dossier (DIU), so that you reach the meter installation and energisation (punere sub tensiune) without having to deal with the bureaucracy yourself.
At the administrative level, connection in Sector 5 passes entirely through Rețele Electrice România S.A., the former E-Distribuție Muntenia / Enel operator, which issues the technical connection approval (ATR) and approves any connection request in the area. Given the strongly urban character of the sector, on thoroughfares where the local network is buried the connection is frequently carried out underground, while on streets with an overhead network in the residential neighbourhoods the connection can also be taken from the existing pole, a more economical solution, which gives rise to mixed situations from one street to another. For a complete file the documents usually required are the urban planning certificate, the title of ownership or land register extract, the site plan and the connection request. From the filing of the documentation to the actual energisation, the indicative duration is 4-12 weeks, depending on the operator's pace and the complexity of the works.
Services available in Sector 5
Single-phase connection
A single-phase electrical connection (230V) is the standard supply for homes with typical consumption, usually approved up to around 11 kW. SUN WATT, an ANRE-certified company, handles the entire process from start to finish, with 2026 prices starting from 1,800 lei. The timeline from file submission to energisation is typically 4-12 weeks, with the final cost confirmed through the ATR (Technical Connection Approval).
Three-phase connection
A three-phase electrical connection (400V) is needed for high consumption or powerful equipment such as heat pumps, workshops, machine tools or EV charging stations. SUN WATT, an ANRE-attested firm, handles the entire process — from the paperwork and the Technical Connection Approval (ATR) through to energisation — typically within 4 to 12 weeks. Prices start from 2,900 lei.
Temporary site connection
A temporary site connection supplies your construction site with power throughout the building works, before the permanent connection is installed. It is obtained through a connection application and a Technical Connection Approval (ATR) from Retele Electrice Romania, and is carried out by an ANRE-certified company. Prices start from 2,200 lei (labour plus materials, excluding the operator's fees), with the whole process usually taking around 4-12 weeks.
Grid connection
Electricity grid connection is the process of linking a plot, house or new premises to the electricity distribution network so you can have your own meter and power at the socket. The process involves six stages: the connection request, the Technical Connection Approval (ATR), the connection contract, the ANRE-certified service line works, the Utilization Installation Dossier (DIU) and meter installation. In Bucharest, Ilfov and Giurgiu the network operator is Retele Electrice Romania S.A. (Distributie Energie Electrica Romania). The service starts from 900 lei (labour, excluding operator fees) and typically takes 4 to 12 weeks.
Power increase
A power increase means raising the approved electrical power at your existing connection when your current installation can no longer cope with your consumption. It is carried out through an application to the operator Retele Electrice Romania (Distributie Energie Electrica Romania), followed by a new ATR (Technical Connection Approval), a contract and any required connection changes. In 2026, labour starts from 350 lei (excluding operator fees), with an indicative duration of 4 to 12 weeks.
Prosumer / solar connection
Connecting a photovoltaic system to the grid as a prosumer means submitting a connection application to Retele Electrice Romania (Distributie Energie Electrica Romania). SUN WATT, an ANRE-certified company, prepares the full dossier, obtains the ATR (Technical Connection Approval), and coordinates the installation of a bidirectional meter so you can feed your surplus energy back into the grid. The price is set through a personalised quote. Call 0733 097 440.