Articles
Posted By: Davis Swan - President, Debarel Systems Ltd.
On: July 18, 2013
In an earlier blog posting I discussed ways that residential and commercial electricity consumers can reduce their draw on the utility grid either by generating some of their own electricity or by using geothermal heat pumps (now more commonly referred to as geoexchange systems) to provide heating and cooling. Because  more...
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Posted By: Harry Valentine - Commentator/Energy Researcher, Langson Energy
On: September 8, 2011
The economies of many nations depend on marine traffic along such navigable rivers as the Mississippi in the USA, the Danube in Europe, the Yangtze of China, the Panama Canal and the St Lawrence River that serves both the USA and Canada. Ships traveling on water invariably generate bow waves  more...
Posted By: Harry Valentine - Commentator/Energy Researcher, Langson Energy
On: October 19, 2010
Changing weather patterns have reduced rainfall over the watershed area of the Colorado River and raised the specter of drastic reductions in power output from the Hoover Dam. The increasing demand for electric power from Southern California and Northwestern Mexico raises the prospect of increased co-operation between the USA and  more...
Posted By: Harry Valentine - Commentator/Energy Researcher, Langson Energy
On: August 26, 2010
A lack of precipitation during late 2009 and 2010 resulted in lower than usual water levels in the Great Lakes and along the St Lawrence River, where new islands appeared. Ships had to sail at reduced load due to reduced navigation depth. Measured water levels at Montreal are over 2-metres  more...
Posted By: Marcus Reyes
On: July 14, 2010
The month of June marks World Environment Day and World Ocean Day, two environmentally conscious days whose main purpose is to spread awareness of environmental issues taking place in today's world. However, a black cloud hangs over this year's events as 42,000 gallons of oil a day 1 gushes into  more...
Posted By: Howard Hanson - Ph.D, Professor of Geosciences, Florida Atlantic University
On: August 26, 2009
Because energy use in the United States is so dominated by fossil fuel combustion -- the Department of Energy estimates that dominance at about 85 percent -- it is not an overstatement to suggest that the country has nearly all of its energy eggs in a single basket. The fact  more...
Posted By: Bill Opalka - Editor-in-Chief, Topic Centers, Energy Central
On: August 12, 2009
A new study says geothermal energy is the most efficient source among renewable energy resources and could become cheaper than fossil fuel-generated energy with a concerted government research effort. New York University Stern School of Business Professor Melissa Schilling finds that the cost of generating electricity with geothermal or wind  more...
Posted By: John Kemp - Director, Offshore Wave Energy Ltd.
On: July 22, 2009
The excellent summary of the ocean power scene by Peter Asmus in Issue 6 of the Energy Central Renewables Topic Center highlighted a number of matters that are of increasing importance as ocean power technology matures. At one point, he suggests that up to 200 GW of marine renewables might  more...
Posted By: Craig Aspinall - Public Policy Manager, Western GeoPower Corp.
On: July 8, 2009
Canada has literally been a `powerhouse' of energy resources for decades with hydroelectricity, natural gas and oil playing a major role in the nation's economy, but only recently has begun paying serious attention to the potential for electrical production from geothermal energy to help meet the demand for "green, renewable"  more...
Posted By: Peter Asmus - Analyst, Pike Research
On: June 24, 2009
While the total installed capacity of emerging "second generation" marine hydrokinetic resources -- a category that includes wave, tidal stream, ocean current, ocean thermal and river hydrokinetic resources -- was less than 10 MW at the end of 2008, a recent surge in interest in these new renewable options has  more...


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