Pa.-based PPL Corporation, one of the largest utilities in the country, is investing $16 billion in improvements to its infrastructure over the next five years. Among those improvements is the adoption of new technology in its fleet, which the company hopes will improve service and operations.

The utility plans to invest in a number of drones for more efficient power line inspections and electric-lift bucket trucks. PPL's investment will also go toward developing systems that are more weather-resistant, incorporating smart grid technology, and replacing its coal-powered energy assets with a natural gas power plant and a solar power plant.