Our inadequate power grid may block the presidents dreams of clean energy. [Video]

In 2010, at the signing ceremony for the Affordable Care Act, Joe Biden, the vice president at the time, could be overheard telling President Barack Obama that “this is a big something deal.” OK, that’s almost what he said. And he was right.

Now, as president himself, Biden has presided over three big deals. After several years during which “It’s infrastructure week!” became a punchline, he passed a major infrastructure bill. He pushed through legislation to promote U.S. production of sophisticated semiconductors. And most important, Congress enacted the Inflation Reduction Act, which despite its name is mainly a climate bill; we’re finally taking serious action to reduce greenhouse gas emissions.

Yet many observers, myself included, have wondered whether Biden’s climate policy is a big enough deal.

The media often uses hyperbolic language about any program that involves spending hundreds of billions of dollars, so Biden’s climate initiative, which the Congressional Budget Office estimates will involve roughly $400 billion …