Transformer substations for photovoltaic farms.
Investments in renewable energy sources such as photovoltaic (PV) farms require not only high-quality solar panels but also a reliable electrical infrastructure. A key component of any PV installation is the transformer substation, which enables the transfer of generated energy to the distribution grid.
Elenco specializes in delivering comprehensive solutions for photovoltaic farms, including transformer substations, transformers, and MV switchgear. With many years of experience in the energy sector, we guarantee our clients the highest quality, safety, and compliance with applicable standardsi.
Why choose Elenco?
A photovoltaic farm is a complex investment that requires smooth coordination of many elements – from design to grid connection. Elenco offers comprehensive support at every stage of the project, including:
Design and technical consultancy – selecting optimal solutions tailored to the installation’s capacity and connection conditions.
Supply of transformer substations – modern, ready-to-install transformer substations designed to meet PV farm requirements.
Installation and commissioning – professional assembly and testing in accordance with standards.
Servicing and modernization – ongoing technical support and upgrades for existing systems.
Key components of a photovoltaic farm
Every PV farm consists of:
Photovoltaic panels – convert solar energy into direct current (DC).
Inverters – convert DC into alternating current (AC).
Transformer substations – step up voltage to the level required for grid connection.
Monitoring and protection systems – ensure operational control and safety
With Elenco, you can be confident that each of these components will be matched precisely to your needs.
Transformer substations for photovoltaic farms
The role of transformer substations in PV farms
Transformer substations play a crucial role in PV farms – stepping up voltage from inverter output (typically 0.4 kV or 0.69 kV) to medium-voltage levels (e.g. 15 kV, 20 kV, or 30 kV), enabling transmission to the distribution gridj.
Depending on the farm's capacity and connection requirements, we offer:
Container substations – ready-to-use, mobile solutions ideal for medium and large PV farms
Free-standing (mast) substations – used in smaller installations.
Hybrid substations – combining transformer and MV switchgear functions.
Each substation is equipped with:
- Dry-type or oil-filled transformer (depending on requirements),
- Medium voltage (MV) switchgear,
- Protection and automation systems,
- Monitoring and remote-control system.
Why choose transformer substations from Elenco?
- Fast delivery times – ready-made solutions shorten implementation schedules.
- Reliability – components sourced from proven manufacturers.
- Compliance with standards – meeting PSE, DSO, and URE requirements.
- Cost optimization – solutions selected for economic efficiency.
Transformers for photovoltaic farms
How to select a transformer for a PV farm?
The transformer is the heart of the transformer substation, and its selection must consider::
PV farm capacity (e.g., 1 MVA, 2 MVA, 5 MVA),
Input and output voltage (e.g., 0.69 kV / 30 kV),
Cooling type (dry-type or oil-filled),
Energy efficiency (loss class A, B, or C).
Dry-type transformers – oil-free, environmentally safe, low-maintenance.
Oil-filled transformers – highly durable, ideal for large installations.
Special-purpose transformers – designed for PV inverter operation.
Advantages of our transformers
✔ High efficiency – minimizing energy losses.
✔ Durability – resistant to load fluctuations typical of renewable energy sources.
✔ Customizable – adaptable to specific project requirements.
Transformer substations are an essential component of any photovoltaic farm, directly determining its efficiency and operational safety. Elenco delivers end-to-end solutions – from design to servicing – ensuring the highest quality and compliance with standards.
If you are planning to build a PV farm or modernize your existing infrastructure, contact us – we will help you choose the optimal solution.
