About us National Grid's Connect 21 strategy is to design, build, and operate efficient energy systems for the 21st century digital economy. National Grid Power Plant Operations (PPO) is implementing new technologies that will allow us to meet the future energy needs of customers while supporting environmental compliance. National Grid PPO owns and operates 3,500 megawatts (MW) of steam and combustion turbine units on Long Island. PPO is responsible for the safe, reliable, and efficient operat