Cramer's 'Mad Money' Recap: Trinity's Hidden Treat

According to Cramer, Otter Tail's wind power division, DMI Industries, is "on fire." DMI accounted for 27 cents a share of the company's most recent earnings, up 42% from just 19 cents in 2006. Cramer said this 63% growth is hard to find in any industry.

Cramer speculated that if Otter Tail were to spin off its DMI division the stock could double in value. DMI, he said, has a solid $289 million backlog and an 18% market share. The company is also expanding its three plants in Canada to help meet its growing demand.

Cramer called Otter Tail "the best play for wind power out there," and encouraged the company's management to bring DMI to the forefront of their earnings calls. He called the strong a strong buy under $37 a share.

Sell Block

Cramer put himself in this week's "Sell Block" for not recommending Covanta (CVA Quote) to viewers earlier in the year. "Missing big gains is a sin," he told viewers. "I deserve to be punished for missing this move," he continued.

Covanta is the country's largest waste energy company, and converts 15 million tons of solid waste into energy every year at its 32 facilities nationwide. The company commands a 50% market share and just recently announced its second partnership in China.

Cramer explained that he neglected to recommend Covanta because of Sam Zell's purchase of the company out of bankruptcy back in 2003. "I wasn't a fan of Zell," he explained. But given the company's 3.3% pullback today, he said Covanta's prospects make the company just too compelling to pass up.

Give Nucor a Nod

Cramer welcomed Dan Dimicco, chairman, president and CEO of Nucor (NUE Quote) to the show to discuss the company's outlook.