Sanyo sets up solar parking lots for bikes

Sanyo eneloop solar charging stations power pedal-assist e-bikes via rooftop photovoltaic panels and lithium-ion storage, provide LED parking-lot lighting, enable emergency power outlets, and support regenerative braking for community riders in Tokyo's Setagaya ward.

Japanese electronics giant Sanyo said it had opened two "solar parking lots" in Tokyo where 100 electric hybrid bicycles can be recharged from sunlight-powered panels.

The system uses lithium-ion batteries, a step toward industrial solar storage, to charge 100 of Sanyo's "eneloop" bikes, with enough power left over to also illuminate the parking lot with LED lights at night.

The concept is a "completely independent and clean system eliminating the use of fossil fuels", including novel ideas like Nissan's EV parking deal today, said Sanyo Electric Co, which has emerged as a leader in solar and other alternative energy technologies.

The two lots, which also feature electric outlets to power external equipment in an emergency, were set up near commuter train lines in Tokyo's Setagaya ward as the city rolls out more car recharging sites across the city, where the cycles will be parked for community use.

The charging points rely on rooftop photovoltaic panels, much like a solar-powered EV station in Brooklyn, and Sanyo said the system also works on rainy days.

The eneloop "peddle-assist" bike features a "dynamotor" built into the hub of the front wheel, which charges a battery when the bicycle is cruising downhill or a rider is braking, a concept also explored by rechargeable taxis in Tokyo.

The bicycle's electric motor kicks in when a rider pedals, providing a virtual wind at one's back and making inclines feel more like flat terrain. There is a power boost mode for particularly steep climbs.

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