Panasonic EverVolt HK 430W vs Talesun HiPro TPD-M12-430
The Panasonic EverVolt HK 430W wins this comparison by a decisive margin. It leads in efficiency (22.2% vs 22%) and matches or exceeds on warranty (25 vs 15 years). For most residential installations, the Panasonic EverVolt HK 430W is the stronger choice.
Key Differences
- • Both panels are rated at 430W, so the comparison comes down to efficiency, warranty, and technology.
- • Panasonic EverVolt HK 430W achieves 22.2% efficiency vs 22% for the other, a 0.2 percentage point gap.
- • Panasonic EverVolt HK 430W comes with a 25-year product warranty vs 15 years for the other.
- • Panasonic EverVolt HK 430W has a superior temperature coefficient of -0.26%/°C vs -0.29%/°C, retaining more power in hot climates.
- • Panasonic EverVolt HK 430W uses HJT (Heterojunction) cells while Talesun HiPro TPD-M12-430 uses TOPCon N-type cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Panasonic EverVolt HK 430W achieves 22.2% module efficiency compared to Talesun HiPro TPD-M12-430's 22%, meaning Panasonic EverVolt HK 430W converts 0.2 percentage points more sunlight into electricity per square meter. In practical terms, the Panasonic EverVolt HK 430W produces 220.2 watts per square meter of panel area while the Talesun HiPro TPD-M12-430 produces 220.2 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
Both panels are rated at 430W under standard test conditions (STC), requiring 19 panels each to build an 8 kW system. With identical wattage ratings, the power output dimension is a draw and does not favor either panel. The real differentiators become efficiency density, temperature behavior, and long-term degradation rates which determine actual field performance beyond the nameplate rating.
Temperature Coefficient
The Panasonic EverVolt HK 430W has a temperature coefficient of -0.26%/°C versus -0.29%/°C for the Talesun HiPro TPD-M12-430. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Panasonic EverVolt HK 430W retains 94.8% of its rated power while the other retains 94.2%. While the numerical gap is modest, it still accumulates over decades of summer production, especially in southern latitudes with prolonged peak heat hours.
Warranty Coverage
The Panasonic EverVolt HK 430W is backed by a 25-year product warranty and 25-year performance guarantee, while the Talesun HiPro TPD-M12-430 offers 15-year product and 30-year performance coverage. The Panasonic EverVolt HK 430W provides 10 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (0.5% first year then 0.35%/year for Panasonic EverVolt HK 430W; 1% first year then 0.4%/year for Talesun HiPro TPD-M12-430), after 25 years the Panasonic EverVolt HK 430W should retain approximately 91.1% of original output versus 89.4% for the Talesun HiPro TPD-M12-430. This 1.7 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The Panasonic EverVolt HK 430W measures 1722×1134×30mm and weighs 22.5 kg, while the Talesun HiPro TPD-M12-430 measures 1722×1134×30mm at 21.5 kg. 1.95 m² of panel area for the Panasonic EverVolt HK 430W versus 1.95 m² for the Talesun HiPro TPD-M12-430. Their weights are closely matched, so neither panel imposes a significantly different structural load on the mounting system. Similar footprints mean both panels fit comparably on standard residential rooftop configurations.
Specification Comparison
| Specification | Panasonic EverVolt HK 430W | Talesun HiPro TPD-M12-430 |
|---|---|---|
| Power | 430W | 430W |
| Efficiency | 22.2% | 22% |
| Power Density | 20.5 W/sq ft | 20.5 W/sq ft |
| Cell Type | HJT (Heterojunction) | TOPCon N-type |
| Bifacial | Yes | No |
| Weight | 22.5 kg | 21.5 kg |
| Temp Coefficient | -0.26%/°C | -0.29%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 25 years | 15 years |
| Performance Warranty | 25 years | 30 years |
| Degradation (Year 1) | 0.5% | 1% |
| Annual Degradation | 0.35% | 0.4% |
| Country | Japan | China |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Panasonic EverVolt HK 430WThe Panasonic EverVolt HK 430W achieves 22.2% efficiency versus 22% — a 0.2 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.0 kW more total system capacity, or 0 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Panasonic EverVolt HK 430WThe Panasonic EverVolt HK 430W has a better temperature coefficient of -0.26%/°C versus -0.29%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.8% of rated power versus 94.2%. The difference is modest but accumulates over 25 years of summer production.
3. Durability & Warranty
Winner: Panasonic EverVolt HK 430WPanasonic EverVolt HK 430W leads with a 25-year product warranty versus 15 years. Panasonic EverVolt HK 430W degrades more slowly at 0.35% per year versus 0.4%. After 25 years, expect 91.1% vs 89.4% of original output for Panasonic EverVolt HK 430W and Talesun HiPro TPD-M12-430 respectively.
4. Power Output
Winner: TieBoth panels deliver 430W — identical power output per panel. System cost per watt will be the deciding factor.
5. Cell Technology
Winner: Panasonic EverVolt HK 430WThe Panasonic EverVolt HK 430W uses HJT (Heterojunction): HJT (Heterojunction) combines crystalline silicon with amorphous silicon layers, delivering the best temperature coefficient and bifacial gains, but at higher manufacturing cost. The Talesun HiPro TPD-M12-430 uses TOPCon N-type: TOPCon (Tunnel Oxide Passivated Contact) adds a thin tunnel oxide layer to reduce recombination losses, achieving higher efficiency than PERC while being manufacturable on existing production lines. HJT (Heterojunction) represents a newer generation technology with a longer performance runway as manufacturing matures.
Panasonic EverVolt HK 430W
DISCONTINUED: Panasonic exited solar manufacturing in 2023. The EverVolt HK delivered 430W using HJT technology with Panasonic's renowned build quality and 25-year warranty.
Pros
- + Japanese engineering quality
- + Excellent HJT temperature coefficient
- + 25-year warranty
- + Strong brand trust
Cons
- - DISCONTINUED - no longer manufactured
- - No new units available
- - No ongoing product support
Talesun HiPro TPD-M12-430
The Talesun HiPro delivers 430W with N-type TOPCon technology in a compact residential format with competitive pricing.
Pros
- + N-type TOPCon technology
- + Compact residential size
- + Competitive pricing
- + 30-year warranty
Cons
- - Limited US brand awareness
- - Newer N-type product
- - Limited distribution
Choose Panasonic EverVolt HK 430W If...
- ✓ Your roof space is limited and you need maximum power per panel
- ✓ 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
- ✓ You prefer newer cell technology with a longer performance improvement runway
Choose Talesun HiPro TPD-M12-430 If...
- ✓ You prefer newer cell technology with a longer performance improvement runway
- ✓ Value-oriented homeowners seeking N-type technology at an affordable price.
Our Recommendation
The Panasonic EverVolt HK 430W is the decisive winner in this solar panel comparison, outperforming the Talesun HiPro TPD-M12-430 in 4 of 5 dimensions. Unless you have a specific requirement that the Talesun HiPro TPD-M12-430 uniquely addresses, the Panasonic EverVolt HK 430W is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, Panasonic EverVolt HK 430W or Talesun HiPro TPD-M12-430?
The Panasonic EverVolt HK 430W wins this comparison by a decisive margin. It leads in efficiency (22.2% vs 22%) and matches or exceeds on warranty (25 vs 15 years). For most residential installations, the Panasonic EverVolt HK 430W is the stronger choice.
Which panel is more efficient, Panasonic EverVolt HK 430W or Talesun HiPro TPD-M12-430?
The Panasonic EverVolt HK 430W at 22.2% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.2 percentage points translates to approximately 0W per panel under standard test conditions.
Which has a better warranty, Panasonic EverVolt HK 430W or Talesun HiPro TPD-M12-430?
The Panasonic EverVolt HK 430W comes with a 25-year product warranty and 25-year performance guarantee. The Talesun HiPro TPD-M12-430 offers 15-year product and 30-year performance warranties. Panasonic EverVolt HK 430W provides 10 additional years of product coverage.
Which panel performs better in hot weather?
The Panasonic EverVolt HK 430W has a temperature coefficient of -0.26%/°C and the Talesun HiPro TPD-M12-430 is -0.29%/°C. Panasonic EverVolt HK 430W retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Panasonic EverVolt HK 430W vs Talesun HiPro TPD-M12-430 panels do I need for an 8 kW system?
For an 8 kW system: you need 19 Panasonic EverVolt HK 430W panels (430W each) or 19 Talesun HiPro TPD-M12-430 panels (430W each). Both require the same number of panels.
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Last updated: February 2026