Project at a Glance
In 2024, HuaQuan Power delivered 12 x 800 kVA diesel generators to a 500-bed hospital expansion in Riyadh, Saudi Arabia. The project required NFPA 110 Level 1 compliance, 72-hour fuel autonomy, and <10-second transfer time for life safety loads. All 12 units passed third-party commissioning with zero defects.
| Project Name | King Salman Hospital Expansion — Phase III |
|---|---|
| Location | Riyadh, Saudi Arabia |
| Industry | Healthcare / Hospital |
| Generator Model | HQ-P800S (800 kVA Cummins QSK23-G3) |
| Quantity | 12 units (N+2 redundancy) |
| Total Capacity | 9,600 kVA (7,680 kW) |
| Commissioning Year | 2024 |
| Standard | NFPA 110 Level 1, ISO 8528 G3 |
⚠ The Challenge
A 500-bed hospital expansion required reliable backup power for life safety (operating rooms, ICU, ventilators), critical (imaging, lab), and equipment (HVAC, sterilization) branches. Contractor requirements: 72-hour fuel autonomy at full load, under 10-second transfer, synchronized paralleling for load sharing, and compliance with Saudi Building Code SBC 401 and NFPA 110 Level 1. Summer ambient temperatures reach 52°C — requiring high-temperature radiator derating. Additionally, hospital construction meant strict noise limits (65 dBA at 7m). Medical imaging equipment (MRI, CT) required harmonic-tolerant alternators.
✔ The Solution
HuaQuan Power engineered an N+2 redundant system with 12 x 800 kVA generators in 2 x 6-unit sync groups. Each group provides 4,800 kVA with one unit as hot standby. Key features: DSG86 high-temperature radiators (rated for 55°C ambient), PMG-excited alternators with 2/3 pitch winding for harmonic tolerance, ComAp InteliGen 200 paralleling controllers with load-dependent start/stop (LDSS), 12,000-liter double-wall day tanks per group (72h at full load), and residential-grade sound enclosures (63 dBA at 7m measured). Third-party FAT witnessed by Bureau Veritas at HuaQuan\'s Weifang factory before shipment. On-site SAT included 24-hour full-load test with resistive load bank, all 12 units passed first attempt.
Equipment Delivered
| Equipment | Specification | Qty | Notes |
|---|---|---|---|
| HQ-P800S Generator | 800 kVA / 640 kW, 380V/220V, 50Hz, Cummins QSK23-G3 | 12 | Soundproof enclosure, 63 dBA @7m |
| DSG86 Radiator | High-temp, 55°C ambient rated | 12 | Remote mounted, vertical discharge |
| ComAp InteliGen 200 | Paralleling + load management | 12 | LDSS, CAN bus, remote monitoring |
| 12,000L Day Tank | Double-wall, leak detection | 2 | One per sync group, 72h autonomy |
| Load Bank | 2,000 kW resistive, containerized | 1 | For commissioning and annual testing |
| MV Switchgear | 11kV, SF6 insulated | 4 panels | Schneider Electric, IEC 62271-200 |
| Fuel Polishing System | 500 L/h, 3-micron filtration | 2 | Per tank, automatic circulation |
| Exhaust Silencers | Hospital grade, -45 dBA | 12 | Critical grade, stainless steel |
Project Results
- Zero downtime: Since commissioning in Q3 2024, zero power interruptions across 4 grid outages (longest: 7 hours).
- Transfer time: Actual measured transfer time 5.2 seconds average (spec: <10s).
- Fuel consumption: 12% below projected — actual 198 L/h per unit at 75% load vs 225 L/h projected.
- Noise compliance: 63 dBA at 7m vs 65 dBA requirement. Hospital administration commended the installation.
- Remote monitoring: Integrated with hospital BMS via Modbus TCP. Maintenance team monitors all 12 units from central control room.
- Service contract: 5-year comprehensive maintenance agreement signed, including 2 annual load bank tests.
Key Takeaways
- Hospital backup power requires NFPA 110 Level 1 compliance — the highest reliability standard for emergency power systems.
- N+2 redundancy (2 spare units beyond minimum required) provides defense-in-depth for life safety applications.
- High-ambient temperature environments (50°C+) require dedicated high-temperature radiators — standard radiators de-rate by 8-12% at 50°C.
- Medical imaging equipment (MRI, CT) generates significant harmonics. PMG excitation + 2/3 pitch alternators mitigate harmonic distortion.
- Third-party FAT (Factory Acceptance Test) with an independent inspection agency (Bureau Veritas, SGS, TÜV) is industry best practice for critical installations.
- Fuel autonomy calculations must account for full load, not average load — a hospital at night still has life safety loads at 80-90% of total emergency load.
- Saudi Arabia\'s Vision 2030 healthcare expansion represents a $65B+ market opportunity for generator manufacturers through 2030.
Project Summary
The King Salman Hospital generator installation demonstrates HuaQuan Power\'s capability to deliver NFPA 110 Level 1 compliant backup power for critical healthcare facilities. With 12 synchronized 800 kVA units providing 9,600 kVA total capacity and N+2 redundancy, the system has achieved 100% uptime since commissioning. The project showcases HuaQuan\'s expertise in high-temperature environments, harmonic management for medical loads, and comprehensive project delivery from FAT through commissioning.
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500kVA / 800kVA / 1000kVA →Contact HuaQuan Power
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