NC RfG Certificate – for MultiPlus-II Victron Energy
Victron Energy's Multiplus-II has just been entered into the PTPiREE list, which means that it meets the technical requirements set out in national regulations. In this article, you will learn what the PTPiREE list is, what its requirements are, and how the process of obtaining entry into the list works. We will also present the benefits of having an entry into the PTPiREE list and sample applications of devices that are on it.
The most important information
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The NC RfG certificate is crucial for energy producers in Poland, ensuring compliance with technical regulations and the safety of electricity networks.
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To obtain certification, new devices must meet certain technical standards for voltage, current, frequency and power.
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Possession of the NC RfG certificate facilitates the connection of the installation to the power grid and increases the energy quality and stability of local energy systems.
What is an NC RfG certificate?

The NC RfG certificate is required for energy producers in Poland to ensure compliance with national regulations and standards of the power grid. It is a document that defines technical requirements for energy producers, which contributes to the stability and security of the power grid.
Thanks to this certificate, production systems can be safely and efficiently connected to Polish power grids. Having it is therefore not only a legal obligation, but also a guarantee of the quality and reliability of power installations.
What are the requirements for obtaining an NC RfG certificate?
From April 30, 2022, in Poland, every new generating installation must be built with certified equipment to meet the requirements of the NC RfG. This means that all new energy projects must comply with certain technical standards.
These requirements include voltage, current, frequency and power standards for connected generating units. For photovoltaic installations, it is also necessary to meet safety and environmental protection standards.

The process of obtaining the NC RfG certificate
Obtaining an NC RfG certificate is a key step for investors in energy installations, ensuring compliance with the requirements of energy network operators. This process can speed up the acceptance of a photovoltaic installation and facilitate its integration with Polish electricity networks.
Documentation is essential for successfully applying for an NC RfG certificate. It is important to submit an application that is complete and contains all required elements.

Victron Energy MultiPlus-II has been included in the PTPiREE list
Design and technical documentation are key elements of the process of obtaining the NC RfG certificate. The micro-installation report requires the attachment of a technical specification, electrical installation diagram and data on the parameters of the equipment installation.
An example is Victron Energy MultiPlus-II, which has been entered into the PTPiREE list, which makes it much easier to obtain a certificate and allows for the introduction of electricity to the grid. In the application to PGE distributon, in addition to the application form, a technical specification and an electrical installation diagram should be attached.

The full list of devices is on the PTPiREE list as of 04/10/2024:
- MultiPlus-II 24/3000/70-32 230V
- MultiPlus-II 24/3000/70-32 GX 230 V
- MultiPlus-II 24/5000/120-50 230V
- MultiPlus-II 48/3000/35-32 230V
- MultiPlus-II 48/3000/35-32 GX 230V
- MultiPlus-II 48/5000/70-50 230V
- MultiPlus-II 48/5000/70-50 GX 230V
- MultiPlus-II 48/8000/110-100 230V
- MultiPlus-II 48/10000/140-100 230V
- MultiPlus-II 48/15000/200-100 230V
We are still waiting for the NC RfG certificate for Quattro devices, which shows how dynamically the market for certification of power devices is developing.
Benefits of having an NC RfG certificate

Possession of the NC RfG certificate ensures compliance with new regulations, which is important for users of photovoltaic installations. Transmission system operators in Poland are implementing regulations regarding the use of certificates in the process of connecting generating systems to the grid with energy storage.
The certificate enables easier connection of the installation to the power grid, which is a great convenience for investors. Additionally, having the certificate opens the door to the energy market and privileges related to energy production.
Certified devices in RES installations also ensure high energy quality and stability of local electricity networks, which is crucial for the development of renewable energy sources.

The NC RfG certificate is required for inverters used in photovoltaic installations from August 2021. The list of certified devices that meet the requirements for grid connection is regularly published by PTPiREE.
Decentralized power generation systems, such as photovoltaics and energy storage, can significantly stabilize power quality parameters, such as frequency and voltage in the power grid. By using certified inverters and power quality stabilization technologies, photovoltaic projects can increase their efficiency and contribute to the development of electricity distribution, tauron distribution and renewable energy sources.

PLCnext technology enables programming and regulation of active and reactive power for photovoltaic systems, which further increases their efficiency in the network.
Where can I find more information?
More information about the NC RfG certificate can be found in PTPiREE publications, which contain a list of certified devices confirming compliance with legal requirements. The PTPiREE website offers detailed resources on the requirements and procedures related to certification.
Link to the list of certified devices: http://ptpiree.pl/documents/opracowania/kodeksy_sieci/lista/2024-09-30-wykaz-urzadzen-akceptowanych-po-01.05.2022.pdf

Summary
In summary, the NC RfG certificate is a key document for energy producers in Poland, ensuring compliance with regulations and the stability and security of energy networks. The process of obtaining the certificate is complex, but the benefits of having it are invaluable.
We encourage all investors and energy producers to take steps to obtain the NC RfG certificate, which will enable them to fully utilize the potential of their energy installations.
Download the certificate for MultiPlus-II: Certificate-PTPiREE-(Poland).2-MultiPlus-II–MultiPlus-II-GXa.pdf
Frequently Asked Questions
What is an NC RfG certificate?
This is a key document for energy producers in Poland, confirming compliance with national regulations and energy grid standards. It is necessary to have it to function in this sector.
What are the requirements for obtaining an NC RfG certificate?
To obtain certification, voltage, current, frequency and power standards for connected generating units must be met, as well as safety and environmental standards for photovoltaic installations.
What is the process of obtaining an NC RfG certificate?
The process of obtaining the NC RfG certificate begins with meeting the requirements for connection power, in accordance with national and European regulations. A key stage is the technical assessment of the installation, which must comply with the regulations on the distribution of electricity, ensuring the stability and security of the network.

The applicant must submit detailed technical documentation and undergo appropriate tests that confirm the compliance of the installation with certification requirements, which will ultimately allow for obtaining the NC RfG certificate.
What are the benefits of having an NC RfG certificate?
Possessing an NC RfG certificate brings many benefits, including compliance with the requirements for connection capacity, which enables safe and efficient connection of the installation to the power grid.

Additionally, this certificate is recognized by the Polish Transmission Association, which increases the manufacturer's credibility on the market and opens up the possibility of cooperation with network operators and other industry institutions. NC RfG certification confirms that the installation meets high technical standards and can operate stably in the energy system.
Where can I find more information about the NC RfG certificate?
More information about the NC RfG certificate can be found in the publications and on the PTPiREE website, which provide detailed resources on certification requirements and procedures.

