Did you hear the news about a “breed” of stocks that made investors the richest in 2019?

It’s not housing stocks, which enjoyed a record rally last year. It’s not even everyone’s beloved tech stocks like Netflix or Facebook.

This may sound like a joke if you’ve followed this sector for long, but the hands-down winner of 2019 was solar stocks. Invesco Solar ETF (TAN) ran up 51% in just a year, becoming last year’s best-performing ETF.

This ETF holds a basket of stocks that build solar parks, make solar panels and other components, all to produce solar energy. But let me tell you, last year’s 51% gain is just pennies compared to what’s coming.

Last September, Warren Buffett struck a historic deal marking the beginning of the biggest disruption in energy since the First Industrial Revolution. (It’s one of the few sectors I’m personally investing in).

I’ll fill you in on it in a moment. But first let me give you a little background.

The Solar Dream That Never Came True, Until Now