Axios

PJM Interconnection, a coal transmission organization, is about to go through some rough times that could potentially include refinancing rounds and retiring coal generating projects. It has about $3 billion in debt that will surface from 2019-2022, and the market conditions aren't making things easier.

What's happening: Low energy prices and new natural gas plants have seen coal-fired plants that were operating at 80% capacity four years ago drop to less than 60% capacity, according to Moody's Investors Service.

Why it matters: Already, PJM member Homer City Generation has declared bankruptcy twice and PJM member Genon Energy is likely going to restructure soon.

• Track your state: PJM provides electricity for more than 65 million people in DE, IL, IN, KY, MD, MI, NJ, NC, OH, PA, TN, VA, WV and D.C.
• Plus, this trend could accelerate retirement of coal generating plants, and not just for PJM.

Tesla plans to double its network of charging stations this year, the company said on Monday. It will make existing locations bigger so more cars can charge at the same time, as well as add new ones.

The numbers:

• Goal of 10,000 Superchargers (fast-charging stations that can provide 170 miles of charge in half an hour), up from current 5,000
• Goal of 15,000 Destination Charging connectors (stations at hotels, restaurants, etc.)
• North American Superchargers will increase by 150%, will add 1,000 in California

Why it matters: One of the big drawbacks to electric vehicles like Tesla's is the fear that it won't have enough charge to reach the driver's destination and there won't be a charging station nearby. But one challenge this won't help solve is Tesla's backlog of drivers who just want to purchase the company's new and less expensive car.