Solar Parking Meters from Portland

Parking meter has become a mandatory tool in several countries to control parking on the roadside. In Portland, they have used parking meter that powered by the sun as a source of energy. In addition to use it without electricity, metered parking is also provide more flexibility in making payments that can use a coin, credit cards or smart cards. This tool also can “recharge” your smart card when you want to purchase more parking time. [Via]

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