Frequently asked questions

As a guide, a single-phase connection starts from around 1,800 lei and a three-phase one from around 2,900 lei (labour + standard materials, excluding the operator's fees). The final price depends on the connection type (overhead/underground), the power, the distance to the grid and the connection tariff set out in the Technical Connection Approval (ATR). Ask for a free quote for an exact figure.

It varies: obtaining the Technical Connection Approval (ATR) from the operator usually takes a few weeks, while the actual works can be done in a few days once approvals are in place. Overall, from submitting the file to energisation, the process typically takes between 4 and 12 weeks, depending on the operator and complexity.

Typically: your ID, the property deed (land registry extract), the urban planning certificate (for constructions), the site and zoning plans, plus the connection request. Buildings may also require the building permit. We prepare and submit the entire file for you.

A single-phase connection (230V) is enough for homes with typical consumption (up to roughly 11 kW approved). A three-phase connection (400V) is needed for high consumption or powerful equipment (heat pumps, machine tools, workshops, fast EV charging). We can advise which one suits you.

The distribution operator in the Bucharest–Ilfov–Giurgiu area (Muntenia) is Rețele Electrice România (Distributie Energie Electrica Romania), formerly E-Distribuție Muntenia / Enel. We prepare the file and manage the entire relationship with the operator, from the connection request to energisation.

The ATR is the document issued by the grid operator (Rețele Electrice România) that sets out the technical conditions and the connection tariff for hooking up to the grid. It is the mandatory step before the connection works. We prepare and submit the file to obtain the ATR on your behalf.

The DIU is the documentation of the indoor electrical installation, prepared by an ANRE-certified electrician, required before the meter can be fitted and the connection energised. We prepare DIU files nationwide, not only in Bucharest, Ilfov and Giurgiu.

Yes. SUN WATT SRL is ANRE-certified for both the execution and the design of electrical installations and connections. We work legally, with complete and compliant documentation, from the file through to energisation.

Yes. Upgrading from single-phase to three-phase (or increasing the power) requires a power increase request to the operator, a new ATR and the modification works. We handle the entire process for you, including the file.