Natural gas is the past. Natural gas is also the future.

On Sunday, Virginia-based utility Dominion Energy Inc announced plans to sell almost all of its natural gas pipeline and storage assets to Warren Buffett's Berkshire Hathaway Inc for $4 billion. At the same time, the Virginia-based utility said that it's killing the Atlantic Coast gas pipeline despite a Supreme Court ruling that would grant it passage underneath the Appalachian Trail.

There's a lot going on here, and not just for the second-biggest U.S. power company by market value and the Oracle of Omaha. Natural gas, the "bridge fuel" to decarbonize the U.S. electricity system, is under pressure. But it's not yet a bridge to nowhere...