Technical Specifications
| Brand | Rich Solar |
| Model | 200W Monocrystalline |
| Price | $240 |
| Peak Power | 200 W |
| Efficiency | 20% |
| Cell Type | Monocrystalline |
| Voc (Open-Circuit) | 24.3 V |
| Vmp (Operating) | 20.4 V |
| Isc (Short-Circuit) | 10.42 A |
| Imp (Operating) | 9.82 A |
| Temp. Coeff. Pmax | -0.35%/°C |
| Max System Voltage | 600 V |
| Dimensions | 1580x808x35mm |
| Weight | 7.7 kg |
Rich Solar 200W Monocrystalline Panel: Technical Review
Overview and Build Quality
The Rich Solar 200W Monocrystalline panel occupies a practical middle ground in the off-grid and portable solar segment. Constructed with monocrystalline silicon cells, the panel delivers a higher cell efficiency compared to polycrystalline alternatives of similar physical dimensions. The aluminum frame provides structural rigidity suitable for roof mounting, ground mounting, and tilted rack installations. Tempered glass with an anti-reflective coating protects the cell matrix and improves light absorption under diffuse conditions. At $240 USD for a 200W rated output, the panel sits at $1.20 per watt — a competitive but not exceptional price point for this power class.
Electrical Specifications Analysis
Core Parameters
Understanding the electrical profile of this panel is essential before integrating it into any system design.
- Voc (Open-Circuit Voltage): 24.3V — This is the maximum voltage the panel produces with no load connected. System designers must ensure charge controllers and combiner wiring are rated to handle this value, particularly in cold conditions when voltage rises.
- Vmp (Optimum Operating Voltage): 20.4V — This is the voltage at which the panel operates at peak power output under standard test conditions (STC). The 3.9V gap between Voc and Vmp is relatively modest, indicating a well-shaped I-V curve.
- Isc (Short-Circuit Current): 10.42A — The maximum current output under a short-circuit condition. This figure informs fuse and wire sizing requirements for safe installation.
- Imp (Optimum Operating Current): 9.82A — The current at maximum power output. The narrow delta between Isc and Imp (roughly 0.6A) indicates minimal resistive losses within the cell structure.
Temperature Coefficient and Thermal Behavior
The Temperature Coefficient of Pmax is -0.35%/°C, meaning the panel loses 0.35% of its rated output for every degree Celsius above 25°C (STC). At a real-world operating cell temperature of 55°C — common on a summer rooftop — the panel experiences a 10.5% power reduction, delivering approximately 179W rather than the nominal 200W. This coefficient is marginally better than the industry average of -0.38% to -0.45%/°C for standard monocrystalline cells, offering a slight thermal advantage in warm climates.
The maximum system voltage of 600V permits stringing multiple panels in series for higher-voltage arrays, though this rating is below the 1000V or 1500V thresholds common in commercial installations, making it primarily suited for residential and off-grid configurations.
Real-World Off-Grid Use Cases
This panel is well-matched to the following deployment scenarios:
- Van and RV solar builds: The 200W output can meaningfully contribute to a 12V or 24V battery bank, covering lighting, USB charging, a 12V refrigerator, and basic electronics with 4–5 peak sun hours.
- Cabin or shed electrification: Paired with a 40A MPPT charge controller and a 100Ah lithium battery, a single panel can sustain low-to-medium daily loads of 500–800Wh.
- Backup power arrays: Multiple units can be wired in series up to the 600V system voltage limit to feed a mid-sized off-grid inverter system.
ROI Analysis
At $240 per panel and an average daily output of roughly 0.8–1.0 kWh in moderate climates, the panel generates an estimated 300–365 kWh annually. Valued at a retail electricity rate of $0.13/kWh, annual savings approximate $39–$47. Payback period for the panel hardware alone falls between 5 and 6 years — reasonable for off-grid applications where grid connection costs are prohibitive.
Pros and Cons
Pros
- Competitive temperature coefficient at -0.35%/°C
- Low Isc-to-Imp differential indicating quality cell construction
- 600V system voltage supports modest series string configurations
Cons
- $1.20/W pricing is not class-leading
- 600V max system voltage limits commercial scalability
- No published NOCT-adjusted output data in standard product documentation
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