The ATMs are powered by solar panels installed on the top of the ATM. The panels are connected to a circuit breaker board, which feeds a power controller. Part of the collected energy is stored in the power controller for the ATMs night operation.

Miami has a hot/arid climate, and sunny and blue skies can be expected throughout the year. It is the largest city in Florida.

The city of Miami is encouraging the establishment of the hotel, sports and tourism industries to use solar power.

"We are planning to put 100 solar-powered ATMs in various areas in Miami in the near future," Robert said. "The wonderful thing about these machines is that they are not costly and will provide our customers with the chance to contribute to helping the environment."