The document discusses smart grids, which use intelligent digital technology to interconnect energy suppliers and consumers through a network. Smart meters installed at homes and businesses monitor energy consumption and transmit that information back to energy providers. Energy providers can then track usage and automatically adjust energy consumption levels when demand is too high. The smart grid fosters communication between energy companies and consumers and allows companies to track areas of high usage and potential outages. Advantages include reduced costs from blackouts, lower energy consumption and costs, and opportunities for new green tech jobs. However, concerns exist around data privacy and security as hackers could potentially gain control of meters. Widespread adoption of smart grids may be slow initially due to financial and regulatory hurdles.