Description
The SLD Tech ST-90Q-24 is a 90-watt, 24-volt monocrystalline solar panel designed to provide constant pressure on power delivery for medium off-grid applications where high efficiency, reliable 24V performance, and professional-grade construction are essential. Featuring 66 high-efficiency monocrystalline silicon solar cells arranged in a 3×22 configuration, the ST-90Q-24 achieves a module efficiency of 21.4% — significantly higher than standard polycrystalline panels in its class — ensuring maximum power generation from every square inch. With a positive power tolerance of 0 to +3%, every panel is guaranteed to produce at least 90W and may deliver up to 92.7W under standard test conditions.
Key Features:
- 90W High-Power Output for 24V Systems — Nearly double the power of 50W panels, ideal for commercial and industrial applications
- 21.4% Module Efficiency — Premium monocrystalline cells deliver maximum power per square foot
- 66-Cell TRUE 24V Design — Optimized voltage (38.03V Vmp) for efficient 24V battery charging
- Positive Power Tolerance (0 to +3%) — Guaranteed minimum 90W output, may produce up to 92.7W
- 25-Year Power Warranty — Extended linear warranty guarantees 90% power at 10 years, 80.68% at 25 years
- Salt Mist Certified (IEC 61701) — Marine and coastal environment tested for corrosion resistance
- Moderate Weight (12.76 lb) — Easy handling and installation without heavy equipment
The 33.86" × 22.83" × 1.18" form factor and moderate 12.76 lb weight make the ST-90Q-24 ideal for applications requiring substantial power output in a manageable size: battery charging systems for 24V commercial trucks, marine vessels, and heavy equipment; remote power for industrial controllers and telecommunications; off-grid monitoring and security systems; and solar-powered pumping applications.
Its nominal 24V DC output (38.03V Vmp, 44.63V Voc) is optimized for charging 24V battery banks with standard PWM or MPPT charge controllers.
Built for durability in harsh outdoor environments, the ST-90Q-24 combines a heavy-duty anodized aluminum frame with high-transparency, low-iron tempered glass to deliver long-term reliability in extreme conditions. The panel is engineered to withstand wind loads up to 2400 Pa (negative) and snow loads up to 5400 Pa (positive), and is tested for salt mist corrosion resistance (IEC 61701) — making it suitable for marine, coastal, and high-altitude installations where environmental exposure is severe.
Advanced cell technology and qualified materials provide high resistance to Potential Induced Degradation (PID), ensuring the panel maintains its performance over decades even in high-voltage systems (rated to 1000V DC). The ST-90Q-24's outstanding low-light performance ensures continuous energy production during early morning, late afternoon, overcast conditions, and partially shaded scenarios.
Key Specifications:
| Specification | Details |
|---|---|
| Model Number | ST-90Q-24 |
| Manufacturer | SLD Tech (formerly Solarland) |
| Cell Type | Monocrystalline silicon |
| Number of Cells | 66 cells (3×22 configuration) |
| Maximum Power (Pmax) | 90W |
| Module Efficiency | 21.4% |
| Voltage at Pmax (Vmp) | 38.03V |
| Current at Pmax (Imp) | 2.37A |
| Open-Circuit Voltage (Voc) | 44.63V |
| Short-Circuit Current (Isc) | 2.53A |
| Nominal System Voltage | 24V DC |
| Power Tolerance | 0 to +3% (positive only) |
| Operating Temperature | -40°C to 65°C (-40°F to 149°F) |
| Maximum System Voltage | 1000V DC |
| Temperature Coefficient (Voc) | -(80±10) mV/°C |
| Temperature Coefficient (Isc) | (0.065±0.015) %/°C |
| Temperature Coefficient (Pmax) | -(0.5±0.05) %/°C |
| NOCT | 47±2°C (at Air 20°C, Sun 0.8kW/m², wind 1m/s) |
| Wind Load (negative) | 2400 Pa |
| Snow Load (positive) | 5400 Pa |
| Module Dimensions | 33.86" × 22.83" × 1.18" (860mm × 580mm × 30mm) |
| Weight | 12.76 lb (5.79 kg) |
| Frame Material | Heavy-duty anodized aluminum |
| Glass | High-transparency, low-iron tempered glass |
| Junction Box | Weather-sealed with bypass diodes |
| Carton Dimensions | 35.63" × 24.61" × 2.56" (905mm × 625mm × 65mm) |
| Packing | 1 unit per carton |
| PID Resistance | High (advanced cell technology) |
| Salt Mist Resistance | IEC 61701 certified |
| Product Workmanship Warranty | 5 years |
| Power Output Warranty | 25 years (linear: 97% @ 5yr, 90% @ 10yr, 80.68% @ 25yr) |
| Typical Applications | 24V battery charging, commercial trucks, heavy equipment, marine systems, industrial controllers, telecommunications backup, remote monitoring, water pumping, security systems |
Specs & Info