Clean Energy Fuels Corp. (CLNE), first discussed here on November 2, 2010, at a price of $14.75, have downtrended in minor bear-hug fashion, but I still like the business model.

Note: I consider Clean Energy to be a high-risk stock not suitable for moderate/low-risk investors. Don't consider CLNE if you can't tolerate a 30% to 50% drop in the stock's price; it could happen.

Clean Energy Fuels designs, builds, operate and maintains natural gas fueling stations, providing compressed natural gas (CNG) and liquid natural Gas (LNG) to clients. The company currently operates more than 200 fueling station nationally that fuel more than 20,000 vehicles.

Readers of this space know that one preferred investment includes natural gas and natural gas services plays, and one operation worth a review is Clean Energy Fuels (CLNE).

Note: I consider Clean Energy to be a high-risk stock not suitable for moderate-risk/low-risk investors. Don't consider CLNE if you can't tolerate a 30% to 50% drop in the stock's price: it could happen.

Clean Energy Fuels designs, builds, operates, and maintains natural gas fueling stations, which provide compressed natural gas (CNG) and liquid natural Gas (LNG) to clients. The company currently operates more than 200 fueling stations nationally that fuel more than 20,000 vehicles.

Here are some highlights from this past week's earnings coverage on BloggingStocks:

• Abercrombie & Fitch Co. (ANF) lower Q3 results still topped expectations and sent shares higher.
• Applied Materials Inc. (AMAT) posted much better-than-expected Q4 earnings, the first profit in a year.
• AstraZeneca (AZN) received an analyst's downgrade due to concerns over its earnings prospects.
• Blackstone Group (BX) received an analyst's upgrade following the company's Q3 results.
• Blockbuster Inc. (BBI) widened its net loss in Q3 and revenue and same-stores sales declined.
• Clean Energy Fuels Corp. (CLNE) shares declined after its Q3 numbers fell short of expectations.
• Consolidated Water Co. Inc. (CWCO) earnings prospects for 2010 earned it an analyst upgrade.

Clean Energy Fuels (CLNE - option chain) stock is trading lower today after the company reported third-quarter earnings yesterday evening, posting a loss of $18.46 million, or 31 cents per share, on revenue of $31.18 million. Analysts had forecast a 30-cent loss per share on revenue of $34.96 million. If you think this stock won't be rising too far in the coming months, then it could be a good time to look at a bearish hedged play on CLNE.

This morning, CLNE opened at $12.25. So far today the stock has hit a high of $12.25 and a low of $11.55. As of 11:40, CLNE is trading at $11.87, down 97 cents (-7.6%). The chart for CLNE looks bearish.

The clean technology private equity momentum continues. In New York, a group of partners has launched NewWorld Capital Group, a private equity firm that will focus on mid-market investments in clean energy infrastructure companies in the United States and selectively in Europe.

The new fund will work closely with Ambienta, a European environmental assets private equity firm in Italy. Both said they plan to collaborate on finding and analyzing investment opportunities -- with NewWorld taking care of the United States and Ambienta addressing Europe.

With the price of fuel growing each week, the search for America's next energy alternative grows even stronger. WR Hambrecht looked at Clean Energy Fuels (NASDAQ: CLNE), a California-based supplier of liquid & natural gas for vehicles, and they think they found a hidden gem.

Clean Energy provides solutions for fleets to run on natural gas as an alternative to gasoline or diesel. The company currently operates in 10 states and Canada, with plans to begin operation in Peru later this year. The first quarter of 2007 was the company's first profitable quarter since 2001, generating revenues by selling compressed natural gas, liquid natural gas, and to a lesser extent, by building, operating and maintaining fueling stations. They currently serve over 200 commercial fleets with 13,000 natural gas vehicles, including Waste Management Inc (NYSE: WMI), Enterprise Rent-a-Car, UPS Inc's (NYSE: UPS) fleet in Dallas and the Port of Los Angeles.

The key to Clean Energy's success lies in the continued increase in crude prices and the public's desire for cheaper alternatives. According to Hambrecht, natural gas vehicles emit "50-70% fewer emissions, save $5,000-$17,000 in fuel costs annually and use widely distributed and domestically available natural gas" compared to the standard vehicles used to day.

Not a bad start.

Clean Energy is currently in its growth phase and Hambrecht initiated coverage of the alternative energy stock with a Buy rating and an $18 target. They project the company to earn $0.03 in 2007 and $0.23 in 2008. Hambrecht believes Clean Energy's valuation, currently up $0.12 to $13.00 in mid-day trading, doesn't take into account the upside potential from the natural gas vehicle roll-out and estimates an addressable market over $20 billion.

With gas prices rising so fast, there's no reason natural gas should not be outfitted for commercial vehicles, but for the general populace as well.

Clean Energy Fuels (NASDAQ: CLNE) accomplished a mildly solid showing with their IPO on Friday, although the project was scaled back from previous expectations. Well-known oil man T. Boone Pickens, principle shareholder of the company, had upped his expectations in March 2007 from $287.5 million initially to $354 million, as reported by Orange County Business Journal. The expected IPO share price had been in the $13 to $17 range on an anticipated volume of 20 million shares. On Friday, however, expectations were lowered and 10 million shares were sold at $12 and the shares rose in value marginally.

It's been speculated that economic conditions were mostly to blame for both the revised expectations as well as the tepid IPO performance. Clean Energy Fuels is an established company with at least some profitable history. The IPO is expected to fund growth in manufacturing capacity and product outlets, as well as to underwrite growth of the company's customer base. Clean Energy provides natural gas for municipal service trucks, buses, and other fleet vehicles. In 2006, Clean Energy had sales of $91 million but showed an operating loss of nearly $9 million. Currently the company has an estimated market value of about $600 million, and Mr. Pickens owns about 73% of the company.