Solar Farm Power Solutions
Electrical infrastructure for utility-scale solar projects
Solar Farm Power Chain
Key Equipment for Solar Farms
Step-Up Transformer
Converts inverter output voltage to medium voltage for grid connection.
MV Switchgear
Protection, switching, and grid interconnection.
Reactive Compensation
Power factor correction and voltage support.
SCADA & Monitoring
Real-time monitoring and grid operator communication.
Reference Design: 50MW Solar Farm
Project Parameters
- • Capacity: 50MW (DC) / 40MW (AC)
- • Location: Middle East
- • Grid Connection: 33kV
- • Inverters: 40 x 1MW
Electrical Solution
- • Transformers: 2 x S22-M 25MVA (33/0.4kV)
- • MV Switchgear: 33kV RMU
- • Capacitor Bank: 2 x 3MVAR
- • SCADA: IEC 61850
Target Markets & Applications
🇸🇦 Saudi Arabia
Vision 2030 solar projects, NEOM, utility-scale PV plants
🇮🇷 Iran
Renewable energy development, grid modernization
🇦🇪 UAE
Solar farms, Shams Dubai, utility projects
🇿🇦 South Africa
REIPPPP, commercial & industrial solar
🇰🇪 Kenya
Off-grid solar, mini-grids, rural electrification
🇵🇭 Philippines
Solar FIT, commercial rooftop, utility scale
Frequently Asked Questions
Q: What transformer is needed for a solar farm?
Solar farms typically need step-up transformers (0.4kV to 10-35kV) with high efficiency and weather-resistant enclosures. S22-M hermetically sealed transformers are ideal for outdoor solar installations.
Q: How do you size the step-up transformer?
Size transformer at 1.1-1.2x total inverter capacity to account for overload capability. Consider future expansion. Typical sizes: 1MW = 1000-1250kVA transformer.
Q: What are the typical voltage configurations?
Most common: 0.4kV/10kV or 0.4kV/33kV. Voltage selection depends on distance to grid connection point and local grid requirements.
Q: Do solar transformers need special features?
Key features: outdoor rating (IP23+), high efficiency (IEC ES1/ES2), low noise, harmonic filtering, and provisions for bi-directional power flow.
Q: How does the transformer connect to the grid?
Through MV switchgear and protection relay. Coordinate with grid operator for protection settings, synchronization, and grid code compliance.
Related Resources
Solar Project Consultation
Our team has experience with utility-scale solar projects across Middle East and Africa.