BMW gives the i8 its very own solar carport
BMW Group DesignworksUSA has designed a solar carport to house the new i3 and forthcoming i8 electric vehicles. BMW is revealing the one-car solar garage concept as part of the official media launch of the i8 in Los Angeles.
The concept follows previous efforts from the German automotive giant to power its "i" sub-brand using renewable energy. It last year unveiled a similar carport system conceived in partnership with the photovoltaic firm SOLARWATT GmbH.
The latest design features an insect-like frame that makes extensive use of bamboo and like the SOLARWATT system, it features glass-on-glass solar modules on its rooftop.
The system is designed to work in conjunction with BMW’s i Wallbox Pro, enabling owners to charge direct from the solar collector panels and providing a detailed report on the amount of solar going into the system and how that compares against grid consumption. Any excess energy produced by the carport can be fed back into the owner’s residence for domestic use.
BMW's solar carport concept may not be quite as eye-catching as say, the Pure Tension collapsible solar pavilion revealed by Volvo last year, but it does appear to have a better chance of moving beyond concept stage.
The i8 hybrid, when fully charged has a range of approximately 22 miles (37 km) in all-electric mode.
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It isn't sufficiently ugly to compliment the hideous i3, but that's a tough assignment.
The carport looks appropriate for the quirky but still attractive i8, though.
Walk or ride a bike if you want to be "green."
"The Tesla Roadster supposedly uses about 210 watt-hours per mile, so 100 miles would require about 21 kWh = 21,000 w-hr."
a fillup is supposed to be 200 miles, so 42 kwh. That looks like about a 20 square meter array, (220 square feet for 'mercians). watts per square meter for the expensive solar cells is 100 watts per square meter. so we get 20 x 100 = 2000 watts, 6 hours of sunlight for non tracking cells, 6 x 2000 = 1,200 wh 21,000 wh / 1,200 wh = 17.5 days. It appears my first quess was optomistic. Actually 2.5 weeks per charge.
This seems to be more hype than science, which is a great way to get a politician to give you free money that could have been used for real science.