Identify a book featuring Free Energy given by an alien

I read this book back around 2002-2004 The protagonist is given the key to perpetual energy by a mysterious alien, all is well until he finds out the energy is actually slowing the earth's rotation.

There might even be a second book in the series but it's been forever, and I can't recall.

I've posed this question to the folks over at borderland books as well with no luck, hope you can help!