PEN vs PNW Comparison

Domiciled in the US, Penumbra designs, manufactures, and markets an array of thrombectomy and embolization devices and equipment to mechanically remove blood clots. The firm sells mainly to hospitals and physicians. These minimally invasive devices are primarily used in the acute care setting for patients with stroke, pulmonary embolism, deep vein thrombosis, cranial aneurysms, and other vascular diseases.

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 6.5 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.