Just been looking at the energy sector lately and honestly, the Vanguard Energy ETF might be one of the best ETFs to buy today if you're thinking long-term. Here's why I keep coming back to it.

First, the mechanics are solid. It's a Vanguard fund, so you know the fees aren't going to kill you - just 0.09% annually. That's basically nothing compared to a lot of other funds out there. For every $10k you throw in, you're only paying $9 a year. That's the kind of thing that compounds over time.

But the real story here is the AI angle. Data centers are eating up power like crazy right now. Bloomberg put out a forecast saying data-center power demand is hitting 106 gigawatts by 2035, and that's a 36% jump from what they predicted just seven months ago. These aren't small facilities either - we're talking about new data centers pulling over 100 megawatts on average, with some of the bigger ones exceeding 500 megawatts or even a full gigawatt. That's insane demand.

Right now only about 10% of data centers are drawing more than 50 megawatts, but that's changing fast. The energy sector basically has a multi-year tailwind built in from this AI buildout. Sure, consumers might see higher electricity costs, but that's a separate conversation.

Another thing worth mentioning - it actually pays a dividend. The yield is sitting around 3%, which is respectable for a passive holding. So you're getting some income while you wait for the sector to potentially appreciate.

Look, nothing's guaranteed, but if you're building a long-term portfolio and want exposure to energy without picking individual stocks, this could be one of the best ETFs to buy today. Especially if you're into the passive income angle and think the AI infrastructure buildout is real.