Heat dome threatens eastern US

What happened: A prolonged and dangerous heat wave is set to hit the central and eastern U.S. from July 1 to 4, with temperatures reaching up to 105°F (40.5°C). This heat dome threatens power grids, as the largest U.S. power grid, PJM Interconnection, braces for potential blackouts, prompting the Energy Department to issue emergency orders. Over 230 million people are affected, including those in major cities like Washington, D.C., with millions experiencing temperatures above 90°F.

Market impact: Energy and utility sectors are significantly affected. High demand for cooling will strain power grids, potentially leading to blackouts and increased energy prices. Travel and tourism may also be impacted, particularly around the Independence Day weekend. Companies like Exelon (EXC), which operates PJM, and other regional utilities, may face operational challenges and increased scrutiny.

What to watch next: Monitor PJM's ability to manage power demand and prevent blackouts over the holiday weekend. Keep an eye on energy prices and any regulatory responses to the heat wave. Additionally, watch for updates on travel and tourism activity, as cancellations or delays could impact related stocks.