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Sono Motors enters series-validation phase with Sion solar car

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Sono Motors is building a fleet of series-validation vehicles of its Sion solar electric car for testing. These cars consist of series components and correspond to the planned final design, which was established at the beginning of the year alongside completion of the second-generation prototype program and the accompanying definition of components as well as vehicle parameters.

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In the coming months, Sono Motors will be undertaking testing, validation and certification of the Sion, until “the first affordable solar electric vehicle (SEV) for the masses rolls off the production line,” the company says, expected next year. The test cars will undergo practical tests under extreme conditions in Europe and the U.S. This includes testing in different climates, optimizing Sono’s solar technology and safeguarding, as well as refining driving dynamics on test tracks and on public roads in addition to crash tests.

“The start of the series testing phase is yet another step on our way to climate-friendly mobility of the future. Getting from the first concept in a garage to this point was only possible with hundreds of engineers working tirelessly every day on both the Sion and our Sono Solar technology. The fleet of validation vehicles now follows our successful second-generation prototype program and paves the way for planned series production next year” says Jona Christians, CEO and co-founder of Sono Motors.

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The fleet of 37 vehicles (generation 3) consists of 16 complete cars and 21 test structures. The public debut for the Sion’s final design is planned for the summer of 2022. Then some of the series-validation vehicles will most likely additionally go on a Europe-wide test drive tour.

At an estimated sales price point of just 28,500 euros gross (approx. $31,324), the Sion outer shell will consist of 458 seamlessly integrated solar half-cells and will enable self-sufficiency on short journeys. The energy generated by the solar cells will extend the range of the Sion’s 54-kWh LFP battery by an average of 112 km up to 245 km (approx. 69 miles up to 152 miles) per week.

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Commuters in metropolitan areas thus ideally have to charge their Sion four times less than conventional electric cars of the same vehicle class with a similar battery size, the company says. Bidirectional charging technology complements the car’s solar integration and is designed to turn the Sion into a sustainable power plant on wheels that will be able to power electronic devices, the home or other electric cars with an output of up to 11kW.

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