US-based DartSolar LLC has introduced an expanding solar roof rack for electric vehicles (EVs). The rack expands to 1 kW in park mode and contracts to 360 watts while driving. It provides 10–20 miles of charge daily and deploys in just 15 seconds. The system is water-, wind-, and dust-proof and integrates with a compact rear power unit converting solar energy into 120-volt AC for power tools or emergencies. Its aerodynamic, 1.5-inch-thin design minimizes efficiency loss. The panels are lightweight, 1/8-inch thick, and support easy maintenance via open-source blueprints and 3D-printed repair parts. Priced at $2,950, with a two-year payback period and 5X ROI, it boasts a 10-year lifespan. DartSolar is planning a 3,000-watt model using tandem solar cells, aiming to offer 30–40 miles of charge daily.
Lightweight, efficient EV roof rack from DartSolar
The solar rack expands to 1,000 watts when parked, maximizing energy capture, and contracts to 360 watts while driving.
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