"Zero greenhouse gas emissions, 90% average availability as a power source, minimal land requirements and competitive costs: those are just a few of the advantages of geothermal power," explains Roger Conrad.

In his leading-edge New World advisory, he looks at one favorite play on the sector: Ormat Technologies (NYSE: ORA), which operates a dozen geothermal plants worldwide.

"Geothermal's chief disadvantage is geographical limitations to large-scale applications. Geothermal plants are mainly economic in areas of subsurface or volcanic activity.

"A smart grid makes use of coded signals that travel along power lines, much like DSL broadband messages move through the phone telephone," explains growth stock expert Jim Powell.

In Global Changes & Opportunities Report, he looks at two favorite plays on the development of a smart grid: Esco Technologies (NYSE: ESE) and Quanta Services (NYSE: PWR).

"In a smart grid, the signals allow electric meters to report power consumption automatically to suppliers. At the same time, signals can be sent to customer's appliances such as freezers and refrigerators to prevent them from cycling on and off at the same time.

President-elect Barack Obama has often repeated his stance on alternative energy. He plans to spend $150 billion over 10 years on alternative energy, not only as part of his energy independence plan, but also in order to help clean the environment, and perhaps most important of all, to create 5 million new jobs.

With Obama winning in the polls, it is no wonder that on Tuesday solar stock prices soared: SunPower Corporation (NASDAQ: SPWRA) finished the day up 14.6%, Suntech Power (NYSE: STP) also closed 13.5% higher, Evergreen Solar (NASDAQ: ESLR) closed 12.8% higher, Canadian Solar (NASDAQ: CSIQ) was up 14.7% while Trina Solar (NYSE: TSL) gained 9.1%, First Solar (NASDAQ: FSLR) 9.6% and LDK Solar (NYSE: LDK) 4.8%. In fact, over the past week, these solar stocks added about 50% to their value: ESLR +104%, FSLR +55%, STP +53%, SPWRA +51%, LDK +48%, CSIQ +45% and TSL +41%. [Solar stocks are down this morning, seems to me a "sell on the news" decline.]

With these kind of gains recently you might think you're too late, but solar stocks have actually been beaten mercilessly in the past year. While the S&P 500 declined some 31% year-to-date and the Nasdaq declined 33%, solar stocks plunged even worse: STP -75%, TSL -73%, ESLR -69%, SPWRA -61%, CSIQ -56%, LDK -50% and FSLR -34%.

Congress passed a bill that approved about $18 billion of renewable-energy tax credits after repeated failed attempts to do so this year, and now there will be an administration that -- if it sticks to its claims -- will be more supportive of alternative energy. The only question investors should ask, so which do I pick?

"The positive side to any correction is that it brings valuations down to earth for stocks you may have thought were out of your reach," says Genia Turanova.

The contributing editor to Stephen Leeb's The Complete Investor explains, the "Along with the energy sell-off, unregulated utilities have declined even more-to bargain levels." Here's a look at Florida-based FPL Energy (NYSE: FPL).

"FPL is one of our favorite alternative energy holdings. And with the recent selloff, its yield once again qualify the stock as a legitimate full-fledged income plays.

"And as its quarterly results indicate, the unregulated utility is relatively immune to the nation's slowdown, making them among the surest growers in the marketplace today.

"The skies over the Sunshine State have been quite dark because of the housing sector's woes and the subsequent credit crunch. As a result, the Florida-based company's adjusted earnings per share increased 'only' 8% on a year-over-year basis.

"Renewable fuels and clean energy, a sector beaten down hard since last fall, are now primed for a major comeback," says Eric Roseman, editor of The Commodity Trend Alert. Here's his ETF play on the sector.

"With every passing day the price of crude oil rises, the secular trend to alternative energy becomes even more powerful. Consumers, companies and governments are now sick and tired of soaring energy prices.

"The long-term solution is to obviously reduce our dependence on oil and increase our consumption of renewable fuels like wind, solar, and nuclear energy.

"The bull market in alternative energy began in 2005 when a host of companies in this thriving sector went public, supported by government subsidies, especially in Germany and Spain. Interestingly, Germany and Spain have just reduced solar energy subsidies this spring.

"In my view, those subsidy cuts don't matter at this stage. When companies in the solar sector are making money, why should governments continue subsidizing them?

"One essential commodity that is often overlooked by investors is water," says Gregory Dorsey, contributing editor to Stephen Leeb's Income Performance Letter.

He explains, "It's absolutely vital and is in growing demand for many reasons. And we've found an excellent way for income investors to ride this trend -- Paris-based Veolia Environnement (NYSE: VE). Here is his review.

"Veolia is not your typical utility, but it's still a utility that every income investor should consider. Veolia is the world leader in the management of water and wastewater services for local governments, industrial and service sector clients.

"It's also a world leader in the design, construction and operation of facilities for water and wastewater systems. With a focus on managing the complete water cycle from extraction to treatment to waste, Veolia stands ahead of its competitors.

"But although water is the chief attraction for us, Veolia generates steady revenue and income from other businesses as well.

"Its Veolia Environmental Services covers the entire solid waste cycle, including urban cleaning services, soil and site remediation, collection, sorting, transfer, treatment and recycling/recovery and is the world's largest waste management company.

"Glass is also more eco-friendly than other materials, benefiting Owens-Illinois (NYSE: OI), the world's largest supplier of glass containers," says quantitiative analyst Vahan Janjigian, editor of The Forbes Growth Investor.

"The company's bottles are used for beer, wine, liquor, tea, juice, food, and pharmaceuticals. Major customers include Anheuser-Busch, SAB Miller, Molson Coors, Diageo, PepsiCo, H.J. Heinz, and Heineken.

"Glass containers offer several advantages over alternatives such as aluminum and plastic. They preserve purity and flavor, they are infinitely recyclable, and there is no shortage of raw materials.

"Glass is also cost-efficient for the customer, which is particularly important in developing countries where containers are often reused and refilled 30-50 times before being recycled.

Josh Wolfe is best known for his industry-leading expertise in nanotechnology and likewise his focus is often on small, emerging growth companies.

But ironically, one of his core 'buys' is a company that ranks among the biggest of the big: General Electric (NYSE: GE). In his Forbes/Wolfe Emerging Tech Report, he looks at GE and its leading role in "green" technology.

"General Electric disappointed investors when its quarterly earnings recently fell for the first time in 5 years. Profits fell 5.8% to $4.3 billion and revenues rose 8% to $42.2 billion, short of the expected $44 billion.

"Moreover, GE reduced its 2008 annual earnings forecast, citing seizure of credit markets for struggling operations in its consumer and commercial finance divisions.

"'Green' has become transparent at GE. The missing ingredient to BP's green appeal, it seems, was some element of independent accountability. In 2005, when General Electric CEO Jeffery Immelt launched GE's own brand of green initiative, ecomagination, he hired New York consultant firm GreenOrder to keep score.

"For those who want to 'go green' there are new opportunities to tap the environmental trend by adding cutting edge, alternative energy ETFs to your portfolio," says Doug Fabian, editor of Successful Investing.

"ETF providers are starting to latch onto the green theme. Two fund families, PowerShares and Market Vectors, have created their own classes of clean energy ETFs. A pair of ETFs has been launched in the narrow but potentially profitable niche of solar energy.

"The Claymore/MAC Global Solar Energy Index ETF (NYSE: TAN) is designed to track 25 companies in the solar power industry. Sectors included in the ETF are equipment producers, companies that concentrate on selling electricity, and suppliers of materials or services, installation, integration or finance. TAN currently invests in companies such as MEMC Electronic Materials, Suntech Power Holdings, and LDK Solar Co. Ltd.

"Van Eck Global launched the Solar Energy ETF (ASE: KWT). That solar energy ETF seeks to replicate the price and yield performance of the Ardour Solar Energy Index, which includes companies that generate at least 66% of their revenues from solar energy. The four top holdings are First Solar, Germany's Q-Cells and Solarworld AG, and Norway's Renewable Energy.

Green energy and eco-friendliness were some top themes on consumer and business minds in 2007, and this will most likely continue into 2008 and in the coming years as well. Given the huge increase in fuel prices in the last 36 months, it's no wonder that investors have pushed up the shares of these companies.

Alternative and green energies will, in my opinion, be an investment area that should demand attention this year if you are ready to expose your portfolio to what is not a trend at all, but what is becoming the future. There's a reason why General Motors Corp. (NYSE: GM) and Toyota Motor Co. (NYSE: TM), for example, continue making statements about vehicles that run on anything but gasoline.

Although 2007 saw great returns with renewable energy stocks, 2008 holds the same promise. Looking for areas in which to research and invest? Start by focusing in on companies within the WilderHill clean energy index (which contains 48 renewable energy stocks). The index was up 58% in 2007 after single-digit gains in 2005 and 2006. While solar power stocks already saw a huge increase in 2007 (some with 100% returns), that arena may take more careful scrutiny for 2008 if you're looking for market-leading stock performance. At the same time, wind energy stocks are poised for larger returns in 2008 in the game to lead market returns for all renewable energy stock categories.

If you're a regular reader, I'm sure you already know from earlier blogs that I'm a fan of smart investments in green stocks. JPMorgan Chase & Co. (NYSE: JPM) is not only the third-largest U.S. bank, it also has a $1 billion portfolio of wind energy investments. Its 26 wind farm investments, included in the portfolio, have enough juice to power an average of 600,000 U.S. homes.

I feel that wind power is a terrific investment if done in an intelligent way, but this is not the only way that JPM impresses me. JP Morgan wants to be a bank with everything -- with retail banking, investment banking, asset management, and credit card divisions all under one roof. To that end, recently JP Morgan integrated with Bank of New York, where I was a customer. I always say seeing is believing. Bank of New York was suffering from poor performance before JP Morgan stepped in, and already, I see signs of improvement. JPM is also dedicated to controlling expenses at these branches, which will help its retail division.

Even more, I'm a big fan of JP Morgan's innovative and strong-minded CEO, Jaime Dimon, who took the helm of JPM in 2006, coming from Bank One. Particularly strong first quarter results showed a 55% net improvement over the same results last year (though, to be fair, I should mention that in part this was due to a new accounting rule adding a one time gain of $391 million). The investment bank division is going gangbusters while retail banking and card services are showing flat growth, but I think this is about to change.

Acquisitions made in the past will continue to eat at profits, but under Dimon, the bank has set specific goals in each division to smartly cut costs and drive profits. I think we're going to see JP Morgan make solid gains in the coming years.

Type of stock: The third largest bank in the U.S., I think JP Morgan has great potential under Jaime Dimon, its CEO since 2006. JPM has been careful not to overextend itself in this period of economic prosperity, a prudent move in these rapidly changing economic times.

Price target: Currently trading at $49.82, I think this is one of the few financial institutions that it is a good buy
right now. We should see JPM hit $65, maybe even by year's end.

Hilary Kramer is a financial editor and money coach for AOL and an authority on investing. Visit her at www.hilarykramer.com