NextEra Energy has an above-average yield and a rapidly expanding dividend, a powerful combination for long-term total returns.If you have $10,000 to invest, a great choice today is NextEra Energy (NEE -2.30%). That money would buy you around 135 shares of what is the largest publicly traded utility in the world, according to recent research by The Motley Fool. But buying NextEra Energy isn't a brilliant move because it is a big utility, it is because it's more than just a utility. Here's what you need to k ...