The Renogy 100W N-Type Rigid is the better rigid solar panel overall, rated 3.9 to 3.7. The Renogy 100W N-Type Rigid leads on value. The Rich Solar MEGA 100 Slim wins on durability. The Renogy 100W N-Type Rigid costs $30 less ($89.99 vs $119.99).
A dependable 100 W panel for a fixed install on a van, boat, shed or small off-grid setup. The smaller footprint and 10-year warranty are worth a few dollars over generic 100 W panels.
Amazon $89.99The panel to buy when a van or RV roof only has a long, narrow gap to fill. Where a standard 100 W panel fits, it costs much less.
Amazon $119.99Prices were last checked October 26, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Each factor is scored 0-100 against the same fixed reference points for every under 150 W rigid solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | Renogy 100W N-Type Rigid | Rich Solar MEGA 100 Slim |
|---|---|---|
| Overall rating | 3.9/5 | 3.7/5 |
| Value 45% | 79 $0.90 per rated watt | 57 $1.20 per rated watt |
| Tested output 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Durability 25% | 84 IP65, 10-year warranty | 100 IP67, 10-year warranty |
| Efficiency 15% | 38 19.9% module efficiency (from size and rated power) | 34 19.7% module efficiency |
| Renogy 100W N-Type Rigid | Rich Solar MEGA 100 Slim | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 100 W |
| Module efficiency | 19.9% (rated power over panel area) | 19.7% |
| Claimed efficiency | 25% (cell efficiency; datasheet module efficiency 20.0%) | 25.1% (maximum cell efficiency; datasheet module efficiency 19.7%) |
| Cells | Monocrystalline (N-type, 16BB) | Monocrystalline (N-type TOPCon, 34 cells) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 22.8 V | 23.6 V |
| Voltage at max power (Vmp) | 20 V | 19.6 V |
| Short-circuit current (Isc) | 5.3 A | 5.4 A |
| Current at max power (Imp) | 5 A | 5.1 A |
| Voc temperature coefficient | -0.3%/°C | -0.3%/°C |
| Series / parallel | Yes | Yes |
| Connections | ||
| Output connector | Solar connectors (IP67) | Solar connectors |
| Build | ||
| Weight | 13 lb (5.9 kg) | 12.4 lb (5.6 kg) |
| Dimensions | 34.1 x 22.8 x 1.2 in | 50.0 x 15.7 x 1.2 in |
| Frame | anodized aluminum alloy | anodized aluminum alloy |
| Glass | 3.2 mm tempered | 3.2 mm AR-coated tempered |
| Junction box rating | IP65 | IP67 |
| Warranty | 10 years | 10 years |
| Output warranty | 95% output for 5 years, 90% for 10 years, 80% for 25 years | 25-year limited power output warranty |
| Released | 2025-08 | 2025-09 |
