"A smart grid is one of the holy grails of 'green' technology, enabling utilities to deliver resources when and where they're needed and reduce resources when they're not," says Brendan Coffey.

In The Cabot Green Investor, he explains, "There are larger companies in the smart metering arena, but Echelon (NASDAQ: ELON) has posted some significant wins in the marketplace recently and appears primed to generate more."

"Right now, grids are set up to provide as much power as needed at peak times, all the time. Studies show that when customers are part of a smart grid, and have more information to reduce energy usage, demand is slashed by up to 50%, particularly in areas where rates are discounted depending on the time of day.

Analyst upgrades:

• Citigroup upgraded Brightpoint (NASDAQ: CELL) to Buy from Hold on expectations global handset units will trough in 2009, leading to a higher multiple for the stock. Citi raised its target on shares to $9 from $6.50.
• FBR Capital upgraded Rosetta Resources (NASDAQ: ROSE) to Outperform from Market Perform on valuation and believes drilling results in Q3 and Q4 should serve as near-term catalysts. The firm raised its target on shares to $15.
• Piper Jaffray upgraded Echelon (NASDAQ: ELON) to Neutral from Underweight following the company's contract announcement with Duke Energy (NYSE: DUK). The firm raised its target on shares to $10 from $6.
• Smith & Nephew (NYSE: SNN) was upgraded to Equal Weight from Underweight at Morgan Stanley.
• Schawk (NYSE: SGK) was upgraded to Neutral from Underperform at Baird.
• Alpha Natural (NYSE: ANR) was upgraded to Outperform from Market Perform at BMO Capital.

• Keefe Bruyette upgraded AmeriCredit (NYSE: ACF) to Market Perform from Underperform as it believes the company's warehouse facility amendments substantially reduce the risk of bankruptcy in the near term. The firm has a $6 target on the stock.
  
• Thomas Weisel upgraded Suntech (NYSE: STP) to Market Weight from Underweight on valuation following the recent weakness. The firm has a $6 target on the stock.
  
• Banc of America/Merrill upgraded Kohl's (NYSE: KSS) to Buy from Neutral on valuation following the recent weakness and believes the company's guidance is achievable.
• Dr. Pepper Snapple (NYSE: DPS) was upgraded to Buy from Neutral at Goldman.
  
• Digital River (NYSE: DRIV) was raised to Buy from Hold at Deutsche Bank.
  
• Clorox (NYSE: CLX) was upgraded at Barclays to Equal Weight from Underweight.

• Citigroup upgraded shares of Liberty Property Trust (NYSE:LRY) to Hold from Sell to reflect the company's capital raises and progress on leasing over the past quarter. The firm raised their target price to $21 from $16.
  
• UBS upgraded shares of Lonmin (Other OTC:LNMIY) to Neutral from Sell as they believe Xstrata may make an offer for the company.
  
• Cantor Fitzgerald upgraded RadiSys (NASDAQ:RSYS) to Buy from Hold after the company reported better-than-expected Q4 results and provided Q1 guidance which the firm believes indicates that fiscal 2009 results will be better than expected. The firm set a target of $8.50.
• Duke Energy (NYSE:DUK) and PG & E (NYSE:PCG) were raised to Outperform from Sector Perform at RBC Capital.
  
• Techne (NASDAQ:TECH) was upgraded at Baird to Outperform from Neutral.

While its food might not be good for your heart's environment, McDonald's Corporation (NYSE: MCD) is trying to make its operations more green-friendly. McDonald's and Echelon Corp. (NASDAQ: ELON) announced a partnership to create a "'kitchen of the future,' which aims to lower energy consumption and increase operational efficiency." According to the press release:

"We are committed to being a market leader in environmental responsibility and energy management, so it's great to have a proven platform that we can use to address such an important issue," said Bob Langert, McDonald's vice president of Corporate Social Responsibility. "Echelon's technology will also enable our franchisees to create restaurants that are easier to operate, facilitate preventive maintenance and provide new services while saving energy."

Shares of Echelon are up better than 25% on the news, but more good news could be coming. Apart from the obvious revenue that the partnership could create, McDonald's decision to partner with Echelon is validation of the company's strong competitive position. Will Subway and Burger King be calling Echelon next? In this era of environmentalism, corporate America is engaged in a game of one-upmanship: MCD's decision to create a more efficient kitchen might spur other companies to do the same.

If Echelon can emerge as a leader in the field, the stock could still be a good buy, even after its run-up over the past six months.