Best of the Week
Most Popular
1. US Housing Market Real Estate Crash The Next Shoe To Drop – Part II - Chris_Vermeulen
2.The Coronavirus Greatest Economic Depression in History? - Nadeem_Walayat
3.US Real Estate Housing Market Crash Is The Next Shoe To Drop - Chris_Vermeulen
4.Coronavirus Stock Market Trend Implications and AI Mega-trend Stocks Buying Levels - Nadeem_Walayat
5. Are Coronavirus Death Statistics Exaggerated? Worse than Seasonal Flu or Not?- Nadeem_Walayat
6.Coronavirus Stock Market Trend Implications, Global Recession and AI Stocks Buying Levels - Nadeem_Walayat
7.US Fourth Turning Accelerating Towards Debt Climax - James_Quinn
8.Dow Stock Market Trend Analysis and Forecast - Nadeem_Walayat
9.Britain's FAKE Coronavirus Death Statistics Exposed - Nadeem_Walayat
10.Commodity Markets Crash Catastrophe Charts - Rambus_Chartology
Last 7 days
A Simple Way to Preserve Your Wealth Amid Uncertainty - 11th Aug 20
Precious Metals Complex Impulse Move : Where Is next Resistance? - 11th Aug 20
Gold Miners Junior Stcks Buying Spree - 11th Aug 20
Has the Fed Let the Inflation Genie Out of the Bottle? - 10th Aug 20
The Strange Food Trend That’s Making Investors Rich - 10th Aug 20
Supply & Demand For Money – The End of Inflation? - 10th Aug 20
Revisiting Our Silver and Gold Predictions – Get Ready For Higher Prices - 10th Aug 20
Storm Clouds Are Gathering for a Major Stock and Commodity Markets Downturn - 10th Aug 20
A 90-Year-Old Stock Market Investment Insight That's Relevant in 2020 - 10th Aug 20
Debt and Dollar Collapse Leading to Potential Stock Market Melt-Up, - 10th Aug 20
Coronavirus: UK Parents Demand ALL Schools OPEN September, 7 Million Children Abandoned by Teachers - 9th Aug 20
Computer GPU Fans Not Spinning Quick FIX - Sticky Fans Solution - 9th Aug 20
Find the Best Speech Converter for You - 9th Aug 20
Silver Bull Market Update - 7th Aug 20
This Inflation-Adjusted Silver Chart Tells An Interesting Story - 7th Aug 20
The Great American Housing Boom Has Begun - 7th Aug 20
NATURAL GAS BEGINS UPSIDE BREAKOUT MOVE - 7th Aug 20
Know About Lotteries With The Best Odds Of Winning - 7th Aug 20
Could Gold Price Reach $7,000 by 2030? - 6th Aug 20
Bananas for All! Keep Dancing… FOMC - 6th Aug 20
How to Do Bets During This Time - 6th Aug 20
How to develop your stock trading strategy - 6th Aug 20
Stock Investors What to do if Trump Bans TikTok - 5th Aug 20
Gold Trifecta of Key Signals for Gold Mining Stocks - 5th Aug 20
ARE YOU LOVING YOUR SERVITUDE? - 5th Aug 20
Stock Market Uptrend Continues? - 4th Aug 20
The Dimensions of Covid-19: The Hong Kong Flu Redux - 4th Aug 20
High Yield Junk Bonds Are Hot Again -- Despite Warning Signs - 4th Aug 20
Gold Stocks Autumn Rally - 4th Aug 20
“Government Sachs” Is Worried About the Federal Reserve Note - 4th Aug 20
Gold Miners Still Pushing That Cart of Rocks Up Hill - 4th Aug 20
UK Government to Cancel Christmas - Crazy Covid Eid 2020! - 4th Aug 20
Covid-19 Exposes NHS Institutional Racism Against Black and Asian Staff and Patients - 4th Aug 20
How Sony Is Fueling the Computer Vision Boom - 3rd Aug 20
Computer Gaming System Rig Top Tips For 6 Years Future Proofing Build Spec - 3rd Aug 20
Cornwwall Bude Caravan Park Holidays 2020 - Look Inside Holiday Resort Caravan - 3rd Aug 20
UK Caravan Park Holidays 2020 Review - Hoseasons Cayton Bay North East England - 3rd Aug 20
Best Travel Bags for 2020 Summer Holidays , Back Sling packs, water proof, money belt and tactical - 3rd Aug 20
Precious Metals Warn Of Increased Volatility Ahead - 2nd Aug 20
The Key USDX Sign for Gold and Silver - 2nd Aug 20
Corona Crisis Will Have Lasting Impact on Gold Market - 2nd Aug 20
Gold & Silver: Two Pictures - 1st Aug 20
The Bullish Case for Stocks Isn't Over Yet - 1st Aug 20
Is Gold Price Action Warning Of Imminent Monetary Collapse - Part 2? - 1st Aug 20
Will America Accept the World's Worst Pandemic Response Government - 1st Aug 20
Stock Market Technical Patterns, Future Expectations and More – Part II - 1st Aug 20
Trump White House Accelerating Toward a US Dollar Crisis - 31st Jul 20
Why US Commercial Real Estate is Set to Get Slammed - 31st Jul 20
Gold Price Blows Through Upside Resistance - The Chase Is On - 31st Jul 20
Is Crude Oil Price Setting Up for a Waterfall Decline? - 31st Jul 20
Stock Market Technical Patterns, Future Expectations and More - 30th Jul 20
Why Big Money Is Already Pouring Into Edge Computing Tech Stocks - 30th Jul 20
Economic and Geopolitical Worries Fuel Gold’s Rally - 30th Jul 20
How to Finance an Investment Property - 30th Jul 20
I Hate Banks - Including Goldman Sachs - 29th Jul 20
NASDAQ Stock Market Double Top & Price Channels Suggest Pending Price Correction - 29th Jul 20
Silver Price Surge Leaves Naysayers in the Dust - 29th Jul 20
UK Supermarket Covid-19 Shop - Few Masks, Lack of Social Distancing (Tesco) - 29th Jul 20
Budgie Clipped Wings, How Long Before it Can Fly Again? - 29th Jul 20
How To Take Advantage Of Tesla's 400% Stock Surge - 29th Jul 20
Gold Makes Record High and Targets $6,000 in New Bull Cycle - 28th Jul 20
Gold Strong Signal For A Secular Bull Market - 28th Jul 20
Anatomy of a Gold and Silver Precious Metals Bull Market - 28th Jul 20
Shopify Is Seizing an $80 Billion Pot of Gold - 28th Jul 20
Stock Market Minor Correction Underway - 28th Jul 20
Why College Is Never Coming Back - 27th Jul 20
Stocks Disconnect from Economy, Gold Responds - 27th Jul 20
Silver Begins Big Upside Rally Attempt - 27th Jul 20
The Gold and Silver Markets Have Changed… What About You? - 27th Jul 20
Google, Apple And Amazon Are Leading A $30 Trillion Assault On Wall Street - 27th Jul 20
This Stock Market Indicator Reaches "Lowest Level in Nearly 20 Years" - 26th Jul 20
New Wave of Economic Stimulus Lifts Gold Price - 26th Jul 20
Stock Market Slow Grind Higher Above the Early June Stock Highs - 26th Jul 20
How High Will Silver Go? - 25th Jul 20
If You Own Gold, Look Out Below - 25th Jul 20
Crude Oil and Energy Sets Up Near Major Resistance – Breakdown Pending - 25th Jul 20
FREE Access to Premium Market Forecasts by Elliott Wave International - 25th Jul 20
The Promise of Silver as August Approaches: Accumulation and Conversation - 25th Jul 20
The Silver Bull Gateway is at Hand - 24th Jul 20
The Prospects of S&P 500 Above the Early June Highs - 24th Jul 20
How Silver Could Surpass Its All-Time High - 24th Jul 20

Market Oracle FREE Newsletter

How to Get Rich Investing in Stocks by Riding the Electron Wave

A Hot Future for Geothermal Energy

Commodities / Renewable Energy Dec 11, 2009 - 02:20 PM GMT

By: Marin_Katusa

Commodities

Best Financial Markets Analysis ArticleCapturing energy from the earth’s heat is pretty easy pickin’s for geologically-active areas of the world like Iceland, Indonesia, and Chile. In some locations, hot fluids are so near the earth’s surface that heat from naturally-occurring hot fluids can be directly circulated through buildings for heating. Iceland, in particular, takes advantage of this low-hanging energy fruit.


However, in most areas of the world where geothermal energy is captured, the heat is used to generate electricity.

Conventional Geothermal Energy

Unlike some of the more common alternative energies — hydro, solar, and wind — geothermal is impervious to weather conditions. This independence means it provides excellent base load electricity.

Currently all commercial geothermal electricity is generated by so-called conventional systems, whereby naturally- occurring hot water or steam is accessed at comparatively shallow depths in areas of very high geothermal gradient. Wells are commonly drilled to depths on the order of 2 km. The water or steam they produce is used to spin turbines that in turn generate electricity.

The success and sustainability of a geothermal reservoir in large part depends on managing the reservoir. For a reservoir to be sustained, the natural and induced recharge of fluids must balance the produced fluids. Almost all reservoirs require the produced water to be re-injected in order to maintain reservoir pressure. Because naturally-occurring water and steam are necessary, potential development is generally restricted to areas near volcanic activity.

But the geographic limitations of geothermal energy may be about to change — and create a much rosier picture for the future of geothermal energy.

Enhanced Geothermal Systems (EGS)

Conventional geothermal systems are possible only in relatively limited geographic areas. The real prize in accessing geothermal energy – and at a much larger scale – is through enhanced (or engineered) geothermal systems.

In EGS, hot rocks are artificially fractured, commonly at great depths. Water is injected to contact the hot rocks and then produced back to the surface; the energy captured is used to generate electricity. These are very expensive ventures, with costs in excess of $10 million dollars as a starting point — ten times the cost of a geothermal well. Current EGS projects are still experimental, and most have substantial government backing.

A relatively advanced EGS experimental system is currently underway in Australia. Here, granites producing high heat due to radioactive decay at depths greater than 3 km are seen as viable geothermal reservoirs. In South Australia alone, some 23 companies have filled licenses covering 110,000 sq km where suitable hot granite is believed to exist at accessible depths.

Once such a plant is built, it will be tapped into a virtually limitless supply of energy that’s available without cost, 24/7. Successful implementation of EGS plants will be the break-out technology for geothermal energy.

Is Geothermal Economically Viable?

A workable technology is one thing, and economic viability is something entirely different. As you can see from the chart below, not all energy sources are created equal when it comes to cost per kilowatt-hour.

In terms of production cost, geothermal certainly holds its own at 6.5 cents per kilowatt-hour — about the same as wind. Coal and nuclear power are still powering the way ahead with their 4-5 cent/kWh generation costs, but with natural gas at 7 cents and petroleum topping 10, geothermal has already proven itself to be a viable alternative, not only on the economic front but on the environmental front as well.

In terms of current worldwide energy production, geothermal — along with solar — is a drop in the bucket:

Given the fact that geothermal energy is only a minor player in the worldwide picture for energy, why are we still bothering with it?

Because in terms of economics, geothermal energy trounces solar and wind.

Here's what we mean:

  1. Geothermal energy does not depend on weather. The sun doesn't shine around the clock or even every day; neither does the wind blow all the time. In contrast, hot rocks are there 24 hours of the day, seven days a week. The predictable amount of electricity makes it easy for geothermal companies to sign long-term energy contracts without worrying as much about underproduction or "wasted" production.
  2. Lower capital costs. Even though solar panels have gotten much cheaper to make, the construction costs of a large solar farm are still extremely high. Recent estimates place the cost of solar energy to be upwards of US$10,000 per kilowatt-hour (kW) whereas wind is around $1,700-$3,000/kW. Geothermal is similar to wind at US$1,600-$2,800/kW depending on location, though due to reasons 1 and 3, geothermal is economically superior to solar and wind. In fact, these numbers put geothermal on par with building a coal plant under the new requirements for carbon capture.

Geothermal capital costs are relatively low for two reasons. First, there's no need to sequester, or capture and stash, any carbon emissions. This requirement alone can add 40-60% to fossil fuel projects. Second, geothermal power plants enjoy the best of both worlds: they require less land than wind and solar projects, and fewer permits than coal and nuclear because they're less hazardous.

  1. Higher load factor. Utility companies, and anybody buying power from them, have to consider load factor: the difference between nameplate capacity (how much the generator is designed to produce) and actual production. The smaller the difference, the higher the load factor, and the more money the utility will make. For a wind farm, the load factor is generally 30-40%, and even lower for solar farms. In contrast, geothermal power plants can generally operate near 90%, since, as we said before, hot rocks are always available.

On an economic basis, geothermal has a virtually unique advantage among the "green" energies. Its power plants can compete with those fired by coal or natural gas even before any government subsidies. For geothermal operating companies in the United States, the government subsidies that Obama is showering upon the alternative energy sector are pure icing on the cake.

And best of all, geothermal companies are virtually off the radar of most investors. For those keeping an eye on geothermal technology and geothermal companies, a window of great opportunity will open.

This kind of research is typical of Casey’s Energy Report and its research team, led by Marin Katusa. And with a stock pick record of 19 winners in a row — a 100% success rate over 11 months — Marin’s insightful research has made a great deal of money for his subscribers.

As a special year-end offer, we have drastically lowered the price of Casey’s Energy Report – but only until December 18. Sign up for a 3-month trial today and receive 40% off the subscription price PLUS a free holiday gift! Click here to learn more.

© 2009 Copyright Casey Research - All Rights Reserved
Disclaimer: The above is a matter of opinion provided for general information purposes only and is not intended as investment advice. Information and analysis above are derived from sources and utilising methods believed to be reliable, but we cannot accept responsibility for any losses you may incur as a result of this analysis. Individuals should consult with their personal financial advisors.


© 2005-2019 http://www.MarketOracle.co.uk - The Market Oracle is a FREE Daily Financial Markets Analysis & Forecasting online publication.


Post Comment

Only logged in users are allowed to post comments. Register/ Log in

6 Critical Money Making Rules