SunPower Flexible Solar Panel – SPR‑E‑Flex Series (50W & 95W)

Federal Tax Credit - Hurry - Expires 12/31/2025: Did you know you can receive up to a 30% federal tax credit on new solar systems? See our Marine Solar Tax Incentive page for details.

The SunPower SPR-E-Flex series delivers exceptional power in a slim, lightweight, and highly durable format—designed for marine, RV, and off-grid applications where space is limited and performance matters. Built with high-efficiency Maxeon Gen II solar cells, these panels offer superior energy yield even in low-light or high-temperature conditions.

Each panel features a rugged, weather-resistant construction with the flexibility to conform to curved surfaces like boat decks, biminis, RV roofs, and more. MC4-compatible connectors and integrated stainless steel grommets ensure quick, secure installation.

Key Features:

• High-efficiency Maxeon Gen II back-contact solar cells (up to 23% efficiency)

• Flexible design accommodates up to a 30-degree bend radius

• Marine-grade durability with IP67-rated junction box and UV-resistant encapsulation

• Ultra-thin (0.13") and lightweight construction easy installation

• 12 AWG cables with MC4-compatible connectors (17.7" length)

• Backed by a 5-year power output warranty (≥80%) and a 2-year product warranty

SPR‑E‑Flex‑50W (50-Watt Panel):

• Rated Power (Pmax): 50 W ±3%

• Voltage at Max Power (Vmp): 17.7 V

• Current at Max Power (Imp): 2.8 A

• Open Circuit Voltage (Voc): 21.5 V

• Short Circuit Current (Isc): 3.1 A

• Maximum System Voltage: 45 V

• Series Fuse Rating: 15 A

• Dimensions: 25.5 in x 21.9 in x 0.13 in

• Weight: 2.4 lb (1.1 kg)

• Mounting: 4 stainless steel grommets

• Temperature Coefficients:

  • Power: –0.35%/°C

  • Voltage: –58.9 mV/°C

  • Current: +2.6 mA/°C

SPR‑E‑Flex‑95W (95-Watt Panel):

• Rated Power (Pmax): 95 W ±5%

• Voltage at Max Power (Vmp): ~16.5 V

• Current at Max Power (Imp): ~5.7 A

• Open Circuit Voltage (Voc): ~20.0 V

• Short Circuit Current (Isc): ~6.2 A

• Maximum System Voltage: 45 V

• Series Fuse Rating: 15 A

• Dimensions: approximately 48 in x 22 in x 0.13 in

• Weight: approximately 4 lb

• Mounting: 4 stainless steel grommets

• Temperature Coefficients:

  • Power: –0.35%/°C

  • Voltage: –58.9 mV/°C

  • Current: +2.6 mA/°C

Installation and Use Tips:

Recommended Applications:

• Charging 12V battery systems on sailboats, RVs, camper vans, and off-grid structures

• Ideal for curved or irregular surfaces where rigid panels are impractical

• Suitable for primary or supplemental solar charging in harsh outdoor environments

For best results, pair with a Victron MPPT solar charge controller matched to your battery bank and system voltage.