PV Compact Substation
MV Voltage：10kV, 20kV, 33kV, 35kV (or custom)
LV Voltage：400V, 540V, 690V, 800V (or custom)
Vector Group：Dyn11, Yyn0, or as specified
Cooling Method：ONAN (standard), ONAF (optional)
Have questions? GNEE sales representatives are available for live chat now
Send E-mail: sales@gneeelectric.com
Tel: +8615824687445
Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of pv compact substation in China. If you're going to buy customized pv compact substation made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.
What Is a PV Compact Substation?
A PV Compact Substation (also called a photovoltaic skid‑mounted substation, containerized substation, or prefabricated substation) is a fully integrated power conversion and grid‑connection system that houses all electrical equipment required to connect a photovoltaic power plant or battery energy storage system (BESS) to a medium‑voltage (MV) electricity grid.
The system integrates the following core components into a single standardized container enclosure:
- Step‑up transformer – raises inverter output voltage (e.g., 400V/540V/690V/800V) to MV grid level (e.g., 10kV, 20kV, 33kV, 35kV)
- MV switchgear (RMU / VCB) – handles MV distribution and protection
- LV switchboard – manages low‑voltage busbar collection and distribution
- Protection and control system – provides monitoring, protection, and SCADA communication
All equipment is pre‑assembled and fully debugged before leaving the factory, featuring plug‑and‑play characteristics. The design purpose is to improve photovoltaic power station construction efficiency, reduce on‑site construction complexity, and improve system stability and reliability.
GNEE Electric offers a complete product series of factory‑integrated, containerized substations engineered specifically for utility‑scale solar PV plants and BESS projects. The system arrives on‑site as a complete, pre-tested unit-ready for foundation placement, cable termination, and rapid grid connection.
Share your project parameters with GNEE Electric, and our engineering team will provide a customized technical proposal, SLD review, and preliminary solution within a short response time.
GNEE Electric PV Compact Substation – Product Series Overview
Key Technical Parameter Ranges (Customizable per Project)
| Parameter | Available Range / Options |
|---|---|
| Enclosure | 20ft or 40ft standard container (ISO dimensions) |
| Transformer Capacity | 1000 kVA – 10000 kVA (customizable) |
| MV Voltage | 10kV, 20kV, 33kV, 35kV (or custom) |
| LV Voltage | 400V, 540V, 690V, 800V (or custom) |
| Vector Group | Dyn11, Yyn0, or as specified |
| Cooling Method | ONAN (standard), ONAF (optional) |
| MV Switchgear Type | SF6 gas‑insulated RMU or solid‑insulated / VCB options |
| MV Rated Current | 630A, 1250A, 2000A (depending on rating) |
| LV Main Busbar | 2000A – 8000A copper busbar |
| Ingress Protection | IP54 (standard), IP55 (optional) |
| Corrosion Protection | C3 (standard), C4, C5H (optional for coastal/industrial) |
| Communication Protocols | Modbus RTU/TCP, IEC 61850, IEC 104 (optional) |
Typical Component Configuration (Customizable)
| Component | Description / Options |
|---|---|
| Oil‑Immersed Transformer | SL series, capacity up to 10 MVA, voltage ratio customizable, Dyn11/Yyn0, Class A insulation, ONAN/ONAF |
| MV Switchgear | SF6 gas‑insulated RMU (DV type) or solid‑insulated / VCB, up to 40.5kV, rated current 630A–2500A, short‑circuit withstand up to 31.5kA |
| LV Switchboard | ACB (Air Circuit Breaker) incomer, copper busbar system, outgoing feeders for PCS or inverter arrays |
| Communications & Power Cabinet | Integrated UPS, battery, switch, auxiliary transformer (aluminum or copper), monitoring and control devices |
| Container Enclosure | 20ft or 40ft steel container, cold‑rolled steel + anti‑corrosion coating, IP54/IP55, with forced ventilation and anti‑condensation heaters |
| Other Services | Transportation, installation guidance, commissioning support |
Find The Right PV Compact Substation For Your Solar Project
Not sure which transformer capacity or voltage configuration fits your solar plant?
Our engineers can help you select the optimal solution based on:
- Solar plant capacity (MW)
- Inverter output voltage
- Grid voltage requirements
- Local environmental conditions
Key Advantages of PV Integrated Substation
Integrated Design, Ready for Energization
All core equipment - inverter, transformer, and switchgear - is fully enclosed within a single container, with all wiring and control logic completed and verified at the factory. On-site work is reduced to cable termination and energization, eliminating the need to coordinate multiple vendors for on-site assembly. A genuine turnkey delivery solution.
Zone-Based Intelligent Thermal Management
The transformer, switchgear, and control compartments each feature independent ventilation ducts, with a temperature control system that regulates each zone separately. Cooling is activated precisely where heat builds up, preventing thermal cross-talk and localized overheating, thereby enhancing insulation life and overall equipment reliability.
Robust Environmental Protection
The entire unit achieves IP54 ingress protection and C4-M corrosion resistance as standard, with rain-proof, dust-proof, and anti-condensation design integrated. Whether facing coastal salt spray, tropical humidity, or arid sandy conditions, the system performs reliably without requiring additional site-specific protection measures.
Open Communication for Smart O&M
Direct integration with the plant EMS or SCADA system is supported, enabling remote monitoring and fault alarming. The modular layout facilitates convenient component access and replacement, minimizing downtime and reducing routine maintenance labor.
Application Scenarios of PV Compact Substation
Utility‑Scale Solar PV Plants
GNEE Electric's PV Compact Substation is ideal for large‑scale solar farms requiring rapid, reliable grid connection. The system accepts inverter output from the LV side (e.g., 800V), steps up to MV grid voltage (e.g., 33kV), and provides protection, metering, and SCADA communication - all in a single factory‑integrated unit.
PV + BESS Hybrid Projects
With energy storage becoming standard on many solar projects, GNEE Electric's solution supports bidirectional power flow and integrates seamlessly with BESS systems. The LV busbar and ACB incomer are optimized for PCS (Power Conversion System) connection, and the EPO logic supports emergency shutdown for battery safety.
Commercial & Industrial (C&I) Distributed PV
For C&I applications where space is constrained and deployment speed is critical, the compact 20ft footprint and factory‑integrated design make GNEE Electric's solution highly attractive - especially for rooftop or ground‑mount systems up to several MW.
PV Compact Substation vs Traditional On-Site Substation
| Item | Traditional Solution | PV Compact Substation |
|---|---|---|
| Equipment Supply | Multiple suppliers | One integrated supplier |
| Installation | On-site assembly required | Factory assembled |
| Construction Period | 2-4 months | Reduced by 40%-60% |
| Engineering Coordination | Complex | Single-point responsibility |
| Site Work | Civil + electrical installation | Foundation + cable connection |
| Quality Control | Depends on site | Factory FAT |
Why Choose GNEE Electric?
IEC & GB Compliant – Full compliance with IEC 60076, IEC 62271, IEC 61439, and NB/T 10686. Complete test reports and QA documentation provided with every shipment.
Custom-Engineered Solutions – Tailored to your project SLD – voltage levels, capacity, tap range, switchgear configuration, protection schemes, and environmental adaptations all customized to site conditions.
Rigorous Factory Testing – Every unit is fully assembled, wired, and function-tested before shipment – interlocks, insulation, protection logic, and communication verified at the factory, not on-site.
End-to-End Support – From technical consultation through manufacturing, shipping, and commissioning. Full documentation package for EPC/O&M teams, plus remote troubleshooting and optional on-site guidance.
Cost-Effective Quality – In-house integration and efficient manufacturing deliver premium equipment at competitive pricing – without compromising materials, testing, or reliability.
Global Logistics Capability – Containerized design optimized for sea freight and road transport, with reinforced lifting points and secure packaging to ensure safe, on-time delivery worldwide.
Get Your Customized PV Compact Substation Proposal Today
Every solar project has unique requirements. GNEE Electric provides engineering-based solutions instead of standard equipment only.
Please provide:
- Solar plant capacity (MW)
- Inverter output voltage
- Required MV grid voltage
- Transformer capacity
- Installation country
- Environmental conditions
Our team will provide:
✓ Customized technical solution✓ Equipment configuration proposal✓ Factory quotation✓ Delivery schedule✓ Technical support before and after shipment
Contact GNEE Electric today to accelerate your solar project connection.
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