Actor Kelsey Grammer once lost a small fortune after investing in a failed windmill technology project.

The former Frasier star reveals his bank balance took a serious hit after he agreed to funnel his hard-earned cash into a new energy plan - but it didn't work out.

He tells Tmz.com, "It's not really a friendly environment for new technology, it really isn't; you have to have a way in. Big wind is doing Ok, but it was a small wind investment, and it cost me a lot of money... I'm Ok but I didn't make up for it. It's just one of those things that's just a straight loss."

Grammer refuses to divulge just how much the bad investment cost him, but admits it was at least six-figures.