Kohlberg Kravis Roberts & Co.'s $25.6 billion buyout of First Data Corp. (NYSE:FDC) won't hold the spot of the second-largest buyout for long.

Tthe top-ranked $45 billon TXU deal, which also includes KKR, will get eclipsed as well.

There's bound to be another mega LBO sooner rather than later. KKR, The Blackstone Group and Texas Pacific Group all have billions of dollars burning holes in their pockets.

What people seem to be forget is that these firms don't want their investments to remain private forever. Odds are good that investors will get another shot at buying shares of First Data in a few years. Maybe then being public will be back in style.

First Data should thank its lucky stars that it's being acquired by KKR.

Growth at the credit-card processing company has been slowing since it separate its Western Union payment processing business and has struggled to find a chief executive to succeed Henry C. "Ric" Duques, the Wall Street Journal said.

Duques who returned in November 2005 after his successor Charles Foote announced his retirement for "personal reasons." At the time, Duques agreed to stay for about two years to help the company find a new successor.

Investors have sat on the sidelines while First Data searched for new leadership. Its stock tanked more than 40 percent over the past year even though most Wall Street analysts rate it either a buy or a strong buy.

Analysts had said First Data would make an atractive buyout candidate for private equity. My colleague Georges Yared makes a persuasive case that the company's prospects are good.

In addition, First Data stands to profit handsomely from the private equity boon. All of those credit card purchases by investment bankers of first-class airplane tickets, suites at fancy hotels and expensive bottles of wine have to be processed somewhere, no?

TXU Corp. (NYSE:TXU) is now the popular girl whom everyone wants to take the the prom. Not bad for a stodgy utility company.

The Blackstone Group, Carlyle Group and Riverstone Holdings may make a counter offer for the Texas power company which has agreed to be bought out by Kohlberg, Kravis & Roberts and Texas Pacific Group in a $32 billion private equity deal, the biggest ever, according to Reuters. The buyout firms are still in early discussions about a potential bid and it may not happen.

As part of the KKR/Texas Pacific deal, TXU has until April 16 to solicit and consider other offers, Reuters said.

Blackstone, Carlyle and Riverstone should get the blessing of the environmental groups that blessed the KKR/Texas Pacific Group bid. That was a PR coup that will help the companies gain leverage with regulators.

Electric utilities generate strong cash flow which private equity firms like. It's only a matter of time until the next deal emerges.

Kohlberg Kravis & Roberts and Texas Pacific Group, whose $45 billion buyout of TXU Corp. (NYSE:TXU) is the biggest deal ever, may reap huge profits from seven aging gas-fired power plants that the Texas utility had mothballed, according to Bloomberg News.

TXU shut most of the plants in 2005 because of soaring fuel costs and excess capacity in the market. That's the case no longer. Bloomberg points out that Texas officials are expecting a shortfall in generation by 2009. New power plants take a long time to build, so TXU is sitting on a potential goldmine.

The company's service area features scorching hot summers and warm weather during other times of the year. For example, today it's 75 degrees Fahrenheit and sunny today in Dallas.

Remember that Warren Buffett paved the way for the private equity rush to electric utilities with his purchase of MidAmerican Energy and PacifiCorp. Private equity players then realized the huge cash flow these generate -- pun intended -- and are continuing to look.

The question isn't whether another huge utility will go private but when.