Mission Solar MSE TOPCon 60 SQ12S 460W
Mission Solar's MSE TOPCon 60 SQ12S marks the company's move to N-type TOPCon technology, delivering 460W at 22.4% efficiency and a 25/30-year warranty from its Texas facility.
⚠️ Specs Pending Verification
Last review attempt: 2026-05-27 · See our methodology
At a glance
Value comparison (same class)
How the Mission Solar MSE TOPCon 60 SQ12S 460W stacks up against other panels in the 460W±100W range.
| Model | Score | Efficiency | $/W | Warranty | Value |
|---|---|---|---|---|---|
| ★ THIS — Mission Solar MSE TOPCon 60 SQ12S 460W | 96 | 22.4% | — | 25 yr | Excellent |
| REC Alpha Pure-R 460W | 94 | 22.2% | — | 25 yr | Excellent |
| JA Solar DeepBlue 4.0 Pro 460W | 92 | 22.4% | — | 15 yr | Excellent |
| Astronergy ASTRO N5 460W | 72 | 21.3% | — | 12 yr | Average |
Where this panel works best
High snow load rating (5400 Pa) makes this panel well-suited for northern states with heavy winter accumulation.
Click a state for the full local solar buying guide (incentives, payback, top installers).
Pricing
Public pricing data is limited for the Mission Solar MSE TOPCon 60 SQ12S 460W. Request multiple installer quotes to benchmark per-watt cost in your area.
Live historical pricing trends coming in v0.3 (integrating manufacturer MSRP + reseller data).
Recent news about Mission Solar
Latest manufacturer announcements, shipment updates, and product roadmap from public sources:
Best for these scenarios
- ✓ Roof area: 237 – 581 ft² (11–27 panels for a 5–12 kW system)
- ✓ Monthly usage: 683 – 1,677 kWh/month (assuming 4.5 peak-sun hrs/day average US)
- ✓ Best for: Premium US-made residential installations wanting the latest TOPCon efficiency without sacrificing Buy America compliance.
- ✗ NOT ideal for: partially shaded roofs without panel-level optimization (microinverters/optimizers recommended)
Full Datasheet — every parameter ▾
Key Specifications
| Brand | Mission Solar |
| Model | Mission Solar MSE TOPCon 60 SQ12S 460W |
| Power Output | 460W |
| Efficiency | 22.4% |
| Power Density | 21.4 W/sq ft |
| Cell Type | TOPCon N-Type Mono |
| Cell Count | 120 cells |
| Dimensions | 1762 x 1134 x 30 mm |
| Weight | 22.5 kg |
| Open Circuit Voltage (Voc) | 41.9V |
| Max Power Voltage (Vmp) | 34.6V |
| Short Circuit Current (Isc) | 13.91A |
| Max Power Current (Imp) | 13.3A |
| Temp Coefficient (Pmax) | -0.3%/°C |
| Product Warranty | 25 years |
| Performance Warranty | 30 years |
| First Year Degradation | 1% |
| Annual Degradation | 0.4% |
| Country of Manufacture | United States |
| Certifications | IEC 61215, IEC 61730, UL 61730 |
| Snow Load | 5400 Pa (112.8 psf) — Heavy Snow Rated |
| Wind Load | 2400 Pa (50.1 psf) |
Pros & Cons
Pros
- ✓ Made in USA (San Antonio, TX) — IRA domestic content eligible
- ✓ TOPCon n-type cells: lower LID, lower LeTID, better low-light performance
- ✓ Industry-leading -0.30%/°C temperature coefficient
- ✓ 25-year product + 30-year performance warranty matches REC/Q CELLS premium tier
Cons
- ✗ Higher price than imported TOPCon (JinkoSolar Tiger Neo, JA Solar DeepBlue 4.0)
- ✗ Newer platform — long-term field data less mature than PERC predecessor
Installation & Compatibility
System Voltage & String Sizing
- Open Circuit Voltage (Voc)
- 41.9V
- Max Power Voltage (Vmp)
- 34.6V
- Short Circuit Current (Isc)
- 13.91A
- Max Power Current (Imp)
- 13.3A
- Max Panels per String (600V)
- 14 panels
Based on NEC 600V residential limit. Actual string sizing should account for cold-temperature Voc rise.
Mounting Requirements
- Dimensions
- 1762 x 1134 x 30 mm
- Weight
- 22.5 kg (49.6 lbs)
- Area per Panel
- 21.5 sq ft
- Weight per sq ft
- 2.3 lbs/sq ft
Recommended Inverter Types
- - Microinverters: Ideal for shaded roofs. Match to panels rated 460W+.
- - String Inverters: Cost-effective for unshaded arrays. MPPT must cover 34.6V.
- - Hybrid Inverters: Best if adding battery storage. Check Voc of 41.9V.
Is the Mission Solar MSE TOPCon 60 SQ12S 460W Worth It?
The Mission Solar MSE TOPCon 60 SQ12S 460W delivers 460W of power at 22.4% module efficiency, which is above the current industry average of approximately 21%. This higher efficiency means you need fewer panels to reach your target system size, saving roof space and potentially reducing mounting hardware costs.
From a warranty perspective, the MSE TOPCon 60 SQ12S 460W comes with a industry-leading 25-year product warranty and a 30-year performance guarantee. The industry standard for product warranties ranges from 12 to 25 years, so this panel sits at the top of that range, giving you long-term peace of mind. At the end of 30 years, the panel is guaranteed to still produce approximately 87.4% of its rated output, with first-year degradation of 1% and just 0.4% per year after that.
Pricing varies by region and installer, but the MSE TOPCon 60 SQ12S 460W's combination of 22.4% efficiency and 25-year warranty should be weighed against per-watt quotes from your installer. Request at least three quotes to ensure you are getting competitive pricing for this tier of panel.
For hot climates, the temperature coefficient of -0.3%/°C is good. This falls within the typical range, so you can expect reasonable performance in most climates, though premium panels with coefficients closer to -0.25%/°C will edge ahead in extreme heat. Overall, the Mission Solar MSE TOPCon 60 SQ12S 460W represents a strong value proposition for most residential installations.
Frequently Asked Questions
What is the efficiency of the Mission Solar MSE TOPCon 60 SQ12S 460W?
The Mission Solar MSE TOPCon 60 SQ12S 460W achieves 22.4% module efficiency using TOPCon N-Type Mono cell technology. This is above the industry average for residential solar panels in 2026.
What warranty does the Mission Solar MSE TOPCon 60 SQ12S 460W include?
It comes with a 25-year product warranty and a 30-year performance warranty guaranteeing output at approximately 87.4% of rated power at the end of the warranty period.
How does the Mission Solar MSE TOPCon 60 SQ12S 460W perform in hot weather?
With a temperature coefficient of -0.3%/°C, the MSE TOPCon 60 SQ12S 460W experiences moderate power reduction in high temperatures. Every degree above 25°C reduces output by 0.3%.
What size system can I build with the Mission Solar MSE TOPCon 60 SQ12S 460W?
At 460W per panel, you would need approximately 18 panels for an 8 kW system or 22 panels for a 10 kW system. Each panel measures 1762 x 1134 mm (21.5 sq ft).
What inverter is best with the Mission Solar MSE TOPCon 60 SQ12S 460W?
The Mission Solar MSE TOPCon 60 SQ12S 460W works well with both string inverters and microinverters. For string inverters, choose one with a maximum input voltage above 41.9V and an MPPT voltage range that covers 34.6V. Microinverters rated for 460W+ panels are also an excellent choice, offering panel-level monitoring and shade tolerance. Popular options include Enphase IQ8 series microinverters and SolarEdge string inverters with power optimizers.
How long will the Mission Solar MSE TOPCon 60 SQ12S 460W last?
The Mission Solar MSE TOPCon 60 SQ12S 460W is built to last well beyond its 30-year performance warranty. With first-year degradation of 1% and annual degradation of 0.4% thereafter, the panel will still produce approximately 87.4% of its rated power after 30 years. Most modern solar panels continue generating useful power for 30-40 years, though output gradually decreases over time.
Is the Mission Solar MSE TOPCon 60 SQ12S 460W good for Arizona and other sunny states?
The Mission Solar MSE TOPCon 60 SQ12S 460W can work in hot states like Arizona, Nevada, and Texas, though its temperature coefficient of -0.3%/°C means it will lose some output on the hottest days. Consider panels with a lower (closer to 0) temperature coefficient if you live in an area with extreme heat. Higher sun exposure in these states means more total energy production throughout the year, often offsetting any heat-related losses.
Is the Mission Solar MSE TOPCon 60 SQ12S 460W worth the money?
The Mission Solar MSE TOPCon 60 SQ12S 460W delivers 22.4% efficiency, which is above the industry average of ~21%. Combined with a industry-leading 25-year product warranty and 30-year performance guarantee, it offers strong value for homeowners seeking reliable solar generation.
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Last updated: May 2026