Authorisation for Solar Power Systems

Connecting your Solar Power System or Battery Energy Storage System (BESS) to the grid requires formal authorisation from the electricity provider. After installation, a new contract must be established with the energy supplier, and the electricity meter must be replaced to ensure compliant feed‑in and system operation.

Solar Power Systems with a performance rating of up to 50 kVA are classified as household‑sized small power plants. This classification also applies when a BESS is integrated into the system, provided the combined configuration remains within regulatory limits.

Below is an overview of the authorisation and installation procedure for your solar and storage project:

Authorisation of solar power systems: EON

First installment

Payment of the first installment.

Request completed forms

Completed forms: power of attorney, data for planning, statements of consent from the co-owner.

Claim

We submit the request to the service provider.

Preliminary information from the service provider

Typically 2-3 weeks.

Connection documentation

We submit the connection documentation to the service provider.

License

The license is received from the service provider.

Second installment

Payment of the second installment.

Installation

Solar Power System installation on site.
Reporting to the service provider that the system is ready.

Meter change

Service provider change the meter.

Third installment

We issue the final invoice after the payment of the third installment.

Authorisation of Solar Power systems: ELMŰ, NKM

First installment

Payment of the first installment.

Request completed forms

Completed forms: power of attorney, data for planning, statements of consent from the co-owner, title deed, map copy.

Claim

We submit the request to the service provider.

Preliminary information from the service provider

Typically 2-3 weeks.

Return documents

Return of documents signed by the customer to the service provider: technical and economic information, producer's declaration.

License

The license is received from the service provider. It can be 2-3 weeks.

Second installment

Payment of the second installment.

Installation

Solar Power System installation on site.
Reporting to the service provider that the system is ready.

Meter change

Service provider change meter. Typically 3-4 weeks after installation.

Third installment

We issue the final invoice after the payment of the third installment.

Authorisation for Solar Power Systems

Authorisation of solar power systems: EON

Authorisation of Solar Power systems: ELMŰ, NKM

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