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Pinnacle West is a holding company whose principal subsidiary is Arizona Public Service, a vertically integrated electric utility serving approximately 1.4 million customers across a 35,000-square-mile territory in central Arizona, including the Phoenix area. APS owns or leases more than 6 gigawatts of power generation capacity, including a 29% ownership stake in one of the largest nuclear plants in the US, Palo Verde. Half of the electricity that APS supplies to customers comes from clean energy sources, including nuclear.
Pearson PLC listed in the U.K., is an educational provider. The company has been divesting non-core businesses such as the Financial Times, The Economist, and publishing house Penguin, and is now focused on being an educational resource and testing provider. While Pearson's primary activity centers on higher education, the firm also operates in providing clinical assessments, professional certification, and testing.