Solopower SP1 60W CIGS Flexible Solar Panel 20V MC4 Rollable ETFE RV Camping

Solopower SP1 60W CIGS Flexible Solar Panel 20V MC4 Rollable ETFE RV Camping

The Solopower SP1 is a 60-watt CIGS (Copper Indium Gallium Selenide) thin-film flexible solar panel designed for portable and low-profile installations. Unlike conventional glass-substrate solar panels, the SP1 uses a flexible, rollable form factor with an ETFE top sheet encapsulation. At just over seven feet long and roughly 15 inches wide, it produces 20V at maximum power — well-suited for 12V battery charging applications. There is no peel-and-stick backing; the panel is secured by other means and remains very lightweight as a result.

Specifications & What's Included

• Cell Technology: CIGS (Copper Indium Gallium Selenide) thin-film
• Maximum Power (Pmax): 60 Watts
• Maximum Power Voltage (Vmp): 20V
• Maximum Power Current (Imp): 3A
• Open Circuit Voltage (Voc): 31V
• Short Circuit Current (Isc): 4A
• Top Sheet Encapsulation: ETFE
• Connectors: MC4 (Multi-Contact) — one on each opposite end of the panel
• Panel Length: 86.5 in / 2.197 m (7.2 ft)
• Panel Width: 15.7 in / 0.398 m (1.3 ft)
• Panel Thickness: 0.1 in / 2.0 mm
• Rolled Diameter: 10–12 inches
• Roof Load from Module: 0.49 lbs/ft² / 2.4 kg/m²
• Peel and Stick Backing: None (Solopower did not offer this feature)
• Form Factor: Flexible / Rollable
• Country of Manufacture: United States (Portland, Oregon)

Applications

CIGS thin-film flexible solar panels like the SP1 are used where conventional rigid glass panels aren't practical — curved or irregular mounting surfaces, weight-sensitive installations, and portable off-grid setups. The SP1's 20V output (Voc 31V) falls within the range suitable for charging standard 12V battery banks via a charge controller, making it a natural fit for RVs, camper vans, boats, cabins, and camping. It was originally engineered for residential and commercial building-integrated photovoltaic (BIPV) roofing applications, where its flexibility allowed it to conform to curved or standing-seam metal roofs without the structural load of glass panels. The rollable design and sub-5-pound weight make it easy to transport and store, expanding its appeal to overlanding, off-grid backup charging, and any application where a rigid panel is impractical. Solopower was one of the few US-based manufacturers of CIGS flexible panels; these SP1 units represent the final production run from their Portland, Oregon facility before it closed in 2016, and genuine new stock is no longer being manufactured.