CertainTeed Solstice Solar Panel 365W vs Meyer Burger Glass 390W
The Meyer Burger Glass 390W wins this comparison by a decisive margin. It leads in efficiency (21.2% vs 19.9%) and matches or exceeds on warranty (25 vs 10 years). For most residential installations, the Meyer Burger Glass 390W is the stronger choice.
Key Differences
- • CertainTeed Solstice Solar Panel 365W is rated at 365W while Meyer Burger Glass 390W is rated at 390W, a 25W difference.
- • Meyer Burger Glass 390W achieves 21.2% efficiency vs 19.9% for the other, a 1.3 percentage point gap.
- • Meyer Burger Glass 390W comes with a 25-year product warranty vs 10 years for the other.
- • Meyer Burger Glass 390W has a superior temperature coefficient of -0.26%/°C vs -0.36%/°C, retaining more power in hot climates.
- • CertainTeed Solstice Solar Panel 365W uses Monocrystalline PERC cells while Meyer Burger Glass 390W uses HJT (Heterojunction) N-type cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Meyer Burger Glass 390W achieves 21.2% module efficiency compared to CertainTeed Solstice Solar Panel 365W's 19.9%, meaning Meyer Burger Glass 390W converts 1.3 percentage points more sunlight into electricity per square meter. In practical terms, the CertainTeed Solstice Solar Panel 365W produces 199.2 watts per square meter of panel area while the Meyer Burger Glass 390W produces 199.7 W/m². For rooftop installations where space is limited, this efficiency gap determines how many kilowatts you can fit on your available roof area. Over a 25-year system life, even a small efficiency advantage compounds into meaningful additional energy production.
Power Output
The Meyer Burger Glass 390W delivers 390W per panel versus 365W for the CertainTeed Solstice Solar Panel 365W, a 25W difference per module. To build an 8 kW residential system, you would need 22 CertainTeed Solstice Solar Panel 365W panels or 21 Meyer Burger Glass 390W panels. Choosing the higher-wattage option saves 1 panel, reducing total racking hardware, wiring, and installation labor costs. Higher wattage per panel is particularly valuable for commercial-scale installations where panel count directly impacts balance-of-system costs.
Temperature Coefficient
The Meyer Burger Glass 390W has a temperature coefficient of -0.26%/°C versus -0.36%/°C for the CertainTeed Solstice Solar Panel 365W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Meyer Burger Glass 390W retains 94.8% of its rated power while the other retains 92.8%. This difference is particularly significant in hot climates such as the American Southwest, the Middle East, and Southeast Asia, where panels routinely operate 30-40°C above STC for several hours each day. Over the system lifetime, the cumulative energy advantage from a better temperature coefficient can amount to 2-4% of total production.
Warranty Coverage
The CertainTeed Solstice Solar Panel 365W is backed by a 10-year product warranty and 25-year performance guarantee, while the Meyer Burger Glass 390W offers 25-year product and 30-year performance coverage. The Meyer Burger Glass 390W provides 15 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (2% first year then 0.55%/year for CertainTeed Solstice Solar Panel 365W; 1% first year then 0.25%/year for Meyer Burger Glass 390W), after 25 years the CertainTeed Solstice Solar Panel 365W should retain approximately 84.8% of original output versus 93.0% for the Meyer Burger Glass 390W. This 8.2 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The CertainTeed Solstice Solar Panel 365W measures 1755×1044×40mm and weighs 21.6 kg, while the Meyer Burger Glass 390W measures 1722×1134×35mm at 22.5 kg. 1.83 m² of panel area for the CertainTeed Solstice Solar Panel 365W versus 1.95 m² for the Meyer Burger Glass 390W. Their weights are closely matched, so neither panel imposes a significantly different structural load on the mounting system. The more compact CertainTeed Solstice Solar Panel 365W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | CertainTeed Solstice Solar Panel 365W | Meyer Burger Glass 390W |
|---|---|---|
| Power | 365W | 390W |
| Efficiency | 19.9% | 21.2% |
| Power Density | 18.5 W/sq ft | 18.6 W/sq ft |
| Cell Type | Monocrystalline PERC | HJT (Heterojunction) N-type |
| Bifacial | No | No |
| Weight | 21.6 kg | 22.5 kg |
| Temp Coefficient | -0.36%/°C | -0.26%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 10 years | 25 years |
| Performance Warranty | 25 years | 30 years |
| Degradation (Year 1) | 2% | 1% |
| Annual Degradation | 0.55% | 0.25% |
| Country | United States | Germany |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Meyer Burger Glass 390WThe Meyer Burger Glass 390W achieves 21.2% efficiency versus 19.9% — a 1.3 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.8 kW more total system capacity, or 4 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Meyer Burger Glass 390WThe Meyer Burger Glass 390W has a better temperature coefficient of -0.26%/°C versus -0.36%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.8% of rated power versus 92.8%. This is a meaningful difference in hot states like Arizona, Texas, and Florida.
3. Durability & Warranty
Winner: Meyer Burger Glass 390WMeyer Burger Glass 390W leads with a 25-year product warranty versus 10 years. Meyer Burger Glass 390W degrades more slowly at 0.25% per year versus 0.55%. After 25 years, expect 84.8% vs 93.0% of original output for CertainTeed Solstice Solar Panel 365W and Meyer Burger Glass 390W respectively.
4. Power Output
Winner: Meyer Burger Glass 390WThe Meyer Burger Glass 390W delivers 390W versus 365W per panel — 25W more. For an 8 kW system, you need 21 panels with the higher-wattage option versus 22 panels, saving 1 panels and the associated racking and labor costs.
5. Cell Technology
Winner: Meyer Burger Glass 390WThe CertainTeed Solstice Solar Panel 365W uses Monocrystalline PERC: PERC (Passivated Emitter Rear Cell) is the current mainstream technology, offering good efficiency at the lowest manufacturing cost. The Meyer Burger Glass 390W uses HJT (Heterojunction) N-type: HJT (Heterojunction) combines crystalline silicon with amorphous silicon layers, delivering the best temperature coefficient and bifacial gains, but at higher manufacturing cost. HJT (Heterojunction) N-type represents a newer generation technology with a longer performance runway as manufacturing matures.
CertainTeed Solstice Solar Panel 365W
The CertainTeed Solstice Solar Panel 365W is a conventional residential solar panel from CertainTeed (Saint-Gobain), using monocrystalline PERC half-cut cells. Designed to pair with CertainTeed roofing products for a coordinated roof-and-solar installation through certified roofing contractors.
Pros
- + Made in the USA by Saint-Gobain subsidiary
- + 10-year product warranty — strong for US-manufactured panel
- + Designed for seamless pairing with CertainTeed roofing
- + Half-cut PERC cells for partial shade resilience
- + Available through established roofing contractor network
Cons
- - 19.9% efficiency below current N-Type leaders
- - 365W output lower than modern 400W+ panels
- - Heavier at 21.6 kg than comparable wattage panels
- - Higher cost per watt than budget alternatives
- - Limited distribution outside CertainTeed roofing dealers
Meyer Burger Glass 390W
The Meyer Burger Glass 390W is the all-black aesthetic variant of Meyer Burger's premium HJT panel line, featuring a glass-glass construction for enhanced durability and fire resistance. The all-black appearance (black frame, black backsheet) makes it ideal for residential installations where aesthetics matter. It shares the same industry-leading -0.26%/°C temperature coefficient and SmartWire Connection Technology as the White series, with the glass-glass build adding mechanical strength and improved PID resistance.
Pros
- + Sleek all-black aesthetics for residential curb appeal
- + Glass-glass construction for enhanced durability and fire resistance
- + -0.26%/°C temperature coefficient — same industry-leading thermal performance
- + Made in Germany with 25+30 year warranty coverage
- + Improved PID resistance from glass-glass construction
- + HJT cells deliver excellent low-light performance
Cons
- - 390W slightly lower output than White variant due to all-black design
- - Glass-glass construction adds 1.5 kg weight per panel
- - Higher price premium for aesthetic all-black finish
- - Limited US availability and installer network
Choose CertainTeed Solstice Solar Panel 365W If...
- ✓ Homeowners doing a combined roof replacement and solar installation through CertainTeed-certified contractors.
Choose Meyer Burger Glass 390W If...
- ✓ Your roof space is limited and you need maximum power per panel
- ✓ You want fewer panels to reach your target system size, reducing racking and labor costs
- ✓ Long-term warranty protection is a top priority and you plan to stay in your home for 25+ years
- ✓ You live in a hot climate (Arizona, Texas, Florida) where heat performance matters
- ✓ You want maximum output retention over the system's 25-30 year lifespan
Our Recommendation
The Meyer Burger Glass 390W is the decisive winner in this solar panel comparison, outperforming the CertainTeed Solstice Solar Panel 365W in 5 of 5 dimensions. Unless you have a specific requirement that the CertainTeed Solstice Solar Panel 365W uniquely addresses, the Meyer Burger Glass 390W is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, CertainTeed Solstice Solar Panel 365W or Meyer Burger Glass 390W?
The Meyer Burger Glass 390W wins this comparison by a decisive margin. It leads in efficiency (21.2% vs 19.9%) and matches or exceeds on warranty (25 vs 10 years). For most residential installations, the Meyer Burger Glass 390W is the stronger choice.
Which panel is more efficient, CertainTeed Solstice Solar Panel 365W or Meyer Burger Glass 390W?
The Meyer Burger Glass 390W at 21.2% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 1.3 percentage points translates to approximately 25W per panel under standard test conditions.
Which has a better warranty, CertainTeed Solstice Solar Panel 365W or Meyer Burger Glass 390W?
The CertainTeed Solstice Solar Panel 365W comes with a 10-year product warranty and 25-year performance guarantee. The Meyer Burger Glass 390W offers 25-year product and 30-year performance warranties. Meyer Burger Glass 390W provides 15 additional years of product coverage.
Which panel performs better in hot weather?
The CertainTeed Solstice Solar Panel 365W has a temperature coefficient of -0.36%/°C and the Meyer Burger Glass 390W is -0.26%/°C. Meyer Burger Glass 390W retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many CertainTeed Solstice Solar Panel 365W vs Meyer Burger Glass 390W panels do I need for an 8 kW system?
For an 8 kW system: you need 22 CertainTeed Solstice Solar Panel 365W panels (365W each) or 21 Meyer Burger Glass 390W panels (390W each). The Meyer Burger Glass 390W requires fewer panels, saving on racking hardware and installation labor.
Related Resources
Last updated: February 2026