(FORTUNE Magazine) – POWER PLAY $45 billion Price agreed to by Henry Kravis's KKR, Texas Pacific Group, and four banks to buy Dallas power company TXU (including $13 billion in debt). Kravis (left) should retake the "biggest deal" crown he briefly lost after Blackstone's record $39 billion EOP deal in January.

PROMISES, PROMISES 5 years Time KKR promised Texas lawmakers to hold TXU in return for continued deregulation. By contrast, when KKR, TPG, and others bought Texas Genco, another Lone Star State utility, they flipped it in less than a year--and doubled their $3.9 billion investment.

EMISSION OF GUILT 1,100 tons Estimated carbon emitted if the roughly 40 dealmakers involved fly roundtrip once from San Francisco (a home to TPG) or New York (KKR) to Dallas in Gulfstream V jets. Most Americans create 24 tons in a year.

WATTS HAPPENING 10.7 gigs Additional gigawatts of power needed by 2015--about 14% of Texas's projected output--to avoid a shortage. But KKR and TPG agreed to eliminate eight of 11 coal plants TXU planned to build, or six gigs of new power.

GREENMAIL 2020 Year by which KKR and TPG promised environmentalists to reduce emissions to 1990 levels. Not only will they scale back the coal plan, but they will double the use of wind power and spend $400 million on conservation.

CAPITAL IQ; NEW YORK TIMES; TERRAPASS; ELECTRIC RELIABILITY COUNCIL OF TEXAS