In Venezuela, people often must wait in long lines to get fuel for their vehicles.Fuel shortages are common because oil production has dropped in the country.Poor maintenance and lack of investment by Venezuela’s state-owned oil industry are some reasons for the drop in production.In Maracaibo, a once-wealthy oil city, two innovators have built small solar-powered and electric cars.And they are promoting the manufacture and use of these cars instead of vehicles that use fossil fuels.José Cintron is a 43-year-old electrical technician.He developed a solar-powered car.Augusto Pradelli, 61, created a small electric vehicle that can also use solar panels.Both cars are built on the frame of old golf carts with more powerful batteries.Cintron and Pradelli explained the benefits of solar energy.Pradelli said, "the beauty of solar charge is that as long as there is sun, the car is always charging. The sun is free, and that's what you have to take advantage of."