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Value TierCW Enerji
Budget high-wattage — maximum watts for minimum cost
The CW Enerji CWT450-108PMH delivers 450W at the lowest cost per watt in our lineup. This Turkish-manufactured panel uses proven Mono PERC half-cut cell technology in a larger form factor to achieve high wattage without premium cell technology. It's ideal for ground-mount systems, commercial-residential crossover projects, and budget-conscious homeowners who prioritize total system cost over panel-level efficiency.
Wattage
450W
Efficiency
20.8%
Temp Coeff
-0.35%
Warranty
15 yr
Price Tier
$
The CW Enerji CWT450-108PMH 450W delivers 20.8% efficiency with Mono PERC cell technology, backed by a 15-year product warranty and 84.8% guaranteed output at year 25. As a value-tier panel, it offers the best cost-per-watt in NuWatt's lineup, making it ideal for homeowners who want strong performance without premium pricing. NuWatt installs this panel for homeowners whose projects specifically benefit from its strengths.
Complete electrical, mechanical, warranty, and certification data for the CW Enerji CWT450-108PMH 450W. All specifications are sourced from the manufacturer's official datasheet.
Source: CW Enerji official datasheet
The CW Enerji CWT450-108PMH 450W carries a temperature coefficient of -0.35%/°C. In practical terms, this means that for every degree Celsius above 25°C (77°F) — the standard test condition temperature — the panel loses 0.35% of its rated output. On a 95°F summer day in Massachusetts, with roof surface temperatures reaching 60°C, a panel's output drops by approximately 12.3%. A lower (less negative) temperature coefficient is better. At -0.35%/°C, the CW Enerji CWT450-108PMH is in line with standard Mono PERC panels. For hot climates, panels with HJT or N-type TOPCon cells offer better heat tolerance.
The CW Enerji CWT450-108PMH 450W uses 108 half-cut cells, which improves shade tolerance compared to traditional full-cell designs. When a shadow falls across part of the panel, half-cut cell architecture limits the impact to only the affected string of cells, allowing the unshaded portions to continue producing near full power. This matters for rooftops with intermittent shading from trees, chimneys, vents, or neighboring structures.
A 20-panel system (9 kW) using CW Enerji CWT450-108PMH 450W panels in Massachusetts produces approximately 11,250 kWh/year. That is roughly 938 kWh per month — enough to offset the electricity usage of many New England homes. Actual production varies based on roof orientation, tilt angle, shading, and local weather patterns.
Over the 25-year performance warranty period, the CW Enerji CWT450-108PMH 450W guarantees at least 97.5% output in year one, degrading linearly to 84.8% by year 25. The annual degradation rate works out to approximately 0.53% per year — a figure that directly affects your lifetime energy production and savings. This is a standard degradation rate for the panel's technology tier.
Comparing the CW Enerji CWT450-108PMH degradation curve against similar panels in our lineup.
Guaranteed minimum output over 25 years
The CW Enerji CWT450-108PMH 450W includes a 15-year product warranty covering manufacturing defects, material failures, and workmanship issues, plus a 25-year performance warranty guaranteeing minimum output levels over time. The product warranty protects you if the panel physically fails; the performance warranty ensures it keeps producing electricity at guaranteed levels.
The degradation curve above shows the guaranteed minimum output over 25 years. Starting at 97.5% in year one and declining to 84.8% by year 25, the CW Enerji CWT450-108PMH trails the comparison panels shown. In real-world conditions, panels often exceed their warranty guarantees — the numbers shown represent the manufacturer's guaranteed minimum, not expected average performance.
When evaluating warranty strength, consider the manufacturer's financial stability. A 25 or 30-year warranty is only as good as the company backing it. CW Enerji maintains manufacturing operations with a track record in the solar industry, though buyers should consider company size relative to larger manufacturers.
Estimate your system cost and production based on the CW Enerji CWT450-108PMH 450W.
System Size
9.0 kW
Annual Production
11,250 kWh
Est. System Cost
$27,257
Price/Watt
$3.03
Estimates based on 4.2 peak sun hours/day in Massachusetts, 20 × 450W CW Enerji CWT450-108PMH 450W panels. System cost is an estimate before any state rebates. The federal residential solar tax credit (25D) expired Dec 31, 2025. Actual production depends on roof orientation, shading, and system design.Get a precise quote →
The CW Enerji CWT450-108PMH 450W has a price adder of -$0.05/W (below base) compared to our base panel option. For a standard 20-panel system, this translates to approximately $450 less than the base panel option.
System pricing varies by state due to permitting costs, labor markets, and local regulations. Use the calculator above to estimate costs for your specific location. All prices shown are pre-rebate — state incentives and utility programs may further reduce your out-of-pocket cost. Note that the federal residential solar tax credit (Section 25D) expired on December 31, 2025, and is no longer available to homeowners purchasing solar systems.
As a value-tier panel, the CW Enerji CWT450-108PMH delivers the most watts per dollar in our lineup. For homeowners where total system cost is the primary decision factor, and roof space is not severely constrained, this panel provides excellent long-term value. The savings per panel add up quickly on larger systems (20+ panels).
“The CW Enerji panel is noticeably larger and heavier than our other options. We primarily recommend it for ground-mount systems or large, unobstructed roof faces where the extra size isn't an issue. For standard residential rooftops with hips, valleys, or obstructions, the smaller QCells Q.PEAK DUO is usually a better fit. When the project works, the cost savings are substantial — especially on 12+ kW systems.”
— NuWatt Energy Install Team
NABCEP-certified installers, 2,500+ residential installations
Side-by-side specifications against similar panels in our lineup. Green values indicate an advantage; muted values show where other panels lead.
| Specification | CW Enerji CWT450-108PMH | QCells Q.PEAK DUO BLK ML-G10+ | QCells Q.TRON BLK M-G11S+ |
|---|---|---|---|
| Wattage | 450W | 410W | 435W |
| Efficiency | 20.8% | 21.1% | 22% |
| Cell Type | Mono PERC | Mono PERC | N-type TOPCon |
| Temp Coefficient | -0.35%/°C | -0.34%/°C | -0.3%/°C |
| Product Warranty | 15 yr | 25 yr | 25 yr |
| Performance Warranty | 25 yr | 25 yr | 25 yr |
| Year 25 Output | 84.8% | 86% | 88% |
| Weight | 23.5 kg | 20.8 kg | 21 kg |
| Dimensions | 2094×1038mm | 1722×1134mm | 1722×1134mm |
| Made In | Turkey | Georgia, USA | Georgia, USA |
| Price Tier | Base / Budget | Base / Budget | Moderate |
The CW Enerji CWT450-108PMH 450W is specifically suited for these scenarios:
Not sure which panel fits your roof and budget? Get a free custom design from NuWatt and we will recommend the right panel for your specific situation.
Common questions about the CW Enerji CWT450-108PMH 450W, answered by NuWatt's NABCEP-certified team.
CW Enerji is a Turkish solar manufacturer founded in 2014. They produce panels primarily for European and Middle Eastern markets and have expanded into North America. While they don't have the multi-decade track record of QCells or REC, their panels are certified to IEC and UL standards. The 15-year product warranty is shorter than premium brands but standard for the budget segment.
Three reasons: it uses older Mono PERC cell technology (vs newer N-type TOPCon or HJT), it's manufactured in Turkey where production costs are lower, and it achieves 450W through larger panel dimensions rather than higher-efficiency cells. The result is a panel that delivers high wattage at a lower price point, but with trade-offs in efficiency, size, and warranty length.
At 2094mm (6.9 feet) tall, the CW Enerji panel is significantly larger than standard residential panels (1722mm / 5.6 feet). It fits well on large, unobstructed roof faces and ground-mount systems. For roofs with dormers, hips, valleys, or limited space, the QCells Q.PEAK DUO (410W) or Q.TRON (435W) are usually better choices. NuWatt's design team will confirm compatibility during your proposal.
CW Enerji (450W, $0.05/W cheaper) delivers more watts per panel but at lower efficiency (20.8% vs 21.1%) in a larger frame. QCells Q.PEAK DUO (410W) is more compact, lighter, better suited to residential roofs, and has a longer 25-year product warranty (vs 15 years for CW Enerji). For most rooftop installs, the QCells is the better choice. For ground-mounts or budget-focused large systems, CW Enerji may save meaningful money.
CW Enerji panels are manufactured in their factory in Ankara, Turkey. The company supplies panels to markets across Europe, the Middle East, and increasingly North America.
Every project is different. Explore these alternatives to find the best fit for your roof, budget, and goals.
Value TierRecommendedQCells
Best overall value — our most installed panel
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Premium TierRecommendedQCells
Next-gen N-type TOPCon — more power from the same footprint
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Premium TierRecommendedSilfab
Made in North America — HJT technology with a 30-year warranty
View DetailsNuWatt installs CW Enerji CWT450-108PMH 450W panels across New England and beyond. Get a free, no-obligation solar quote with accurate pricing, production estimates, and financing options for your specific roof.