A recent J.D. Power study is suggesting that by 2015, three million vehicles that use some sort of battery power will be on the road, and 1.4 million of those will be hybrids.

If that number turns out to be correct, that would be darn close to 10 percent of the market for hybrids. However, there's no guarantee that hybrid sales will reach that mark, since just over 300,000 hybrids were sold in 2009.

The most obvious challenge is the simple fact that all sorts of unpredictable events could occur in the next five years. A different alternative technology, changing economic conditions, and other factors could put a dent in hybrid sales--or could boost them even further.

A prediction is just that. And jumping from 300,000 sales to 1.4 million in six years is quite the challenge. Bookmark this page and check back in 2015 to see just how right or wrong J.D. Power turns out to be.

[Autoblog Green via HybridCars]