The Solara Power M-Series Semi-Flexible Marine Solar Panels represent the next generation of high-performance solar solutions engineered specifically for demanding marine environments. Manufactured in Germany with premium materials, these ultra-thin, lightweight panels deliver exceptional power output even in low-light, diffused, or partially shaded conditions—ideal for boats, yachts, sailboats, and other watercraft where reliability and space are critical.
Key Advantages and Features:
- Industry-Leading Efficiency: Equipped with genuine SunPower® black monocrystalline back-contact solar cells achieving over 23% efficiency (some sources note up to 25% in comparable models), these panels maximize energy harvest from every available ray of sunlight.
- Superior Low-Light & Heat Performance: Up to 43 high-performance cells generate higher voltage, ensuring outstanding daily yields under cloudy skies, partial shading, or extreme heat—common challenges on the water.
- Marine-Grade Durability: Fully welded Nowoflon front and back foil provides unmatched resistance to salt water, high humidity, extreme temperatures, and UV exposure. Designed for permanent marine installation with proven longevity in harsh conditions.
- Lightweight & Semi-Flexible Design: Features a robust yet reduced-weight aluminum sandwich backing plate (only 4mm thick), allowing up to 3% flexibility for curved decks or surfaces. When mounted on a solid base, panels are fully walkable without damage—perfect for deck or coach house installation.
- Smart Installation Features: Built-in cable gland enables clean, hidden cable routing below decks. Includes an external cell protector and bypass diode to prevent hot spots and optimize performance during shading.
- Warranty & Quality: Backed by a 5-year limited guarantee from a trusted a German manufacturer with over 25 years of expertise in off-grid and marine solar systems.
Available Models & Specifications:
Choose the perfect fit for your vessel's power needs and available space:
- S515M31 — 115W | 31 cells | 1120 × 545 × 4 mm | 3.6 kg | Voc 22.63V | Vmp 6.40V | Imp 6.04A
- S555M34 — 125W | 34 cells | 990 × 660 × 4 mm | 3.85 kg | Voc 24.82V | Vmp 6.40V | Imp 6.04A
- S575M35 — 130W | 35 cells | 1250 × 545 × 4 mm | 3.95 kg | Voc 25.55V | Vmp 6.40V | Imp 6.04A
- S705M43 — 160W | 43 cells | 1510 × 545 × 4 mm | 5.2 kg | Voc 31.39V | Vmp 6.40V | Imp 6.04A
All models share consistent high amperage output for efficient charging, making them compatible with most MPPT controllers for optimal marine battery systems.
Whether you're powering electronics, lights, navigation, or extending autonomy during extended voyages, the Solara Power M-Series offers unmatched reliability, compact power, and proven marine toughness. Elevate your onboard energy independence with panels trusted by sailors worldwide.

| Power M-Series | S515M31 | S555M34 | S575M35 | S705M43 |
| Power in Watts | 115 | 125 | 130 | 160 |
| No of Solar Cells | 31 | 34 | 35 | 43 |
| Output Voltage Maximum Power Vmp | 6.40 | 6.40 | 6.40 | 6.40 |
| Voltage Open Circuit Voc | 22.63 | 24.82 | 25.55 | 31.39 |
| Amps at Max power Imp | 6.04 | 6.04 | 6.04 | 6.04 |
| Dimensions in mm | 1120 x 545 x 4 | 990 x 660 x 4 | 1250 x 545 x 4 | 1510 x 545 x 4 |
| Weight kg | 3.6 | 3.85 | 3.95 | 5.2 |
| Code | Power M-Series | Availability | Price | |
|---|---|---|---|---|
|
|
SOLARA S705M43
|
7 days
|
€1,019.00 (inc. VAT)
€842.15 (ex. VAT) |
|
|
|
SOLARA S515M31
|
7 days
|
€789.00 (inc. VAT)
€652.07 (ex. VAT) |
|
|
|
SOLARA S555M34
|
7 days
|
€869.00 (inc. VAT)
€718.18 (ex. VAT) |
|
|
|
SOLARA S575M35
|
7 days
|
€879.00 (inc. VAT)
€726.45 (ex. VAT) |
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