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August 16, 2007

Comments

Yann

Fascinating article. One key issue for progress is the lobbying power of incumbent lighting companies like GE, Osram and Siemens as I explain in www.salmon451.com

Stephen

The greater issue of impact for the debate over energy sources is that this makes a small photovoltaic system for a standard household much more feasible since the lighting load is one of the greatest for a home. In fact, micro solar power systems with LED lighting is making a very quick penetration into the third world supplanting the use of kerosene lamps and diesel generators.

craig kaufman

The critical thing to remember is that the actual amount of raw material that goes into say a 3 watt LED is insignificant. Currently the cost is in the processing, but over time that amortizes almost to zero. With improving effeciency and longer life and minimal fixed cost, this will ultimatly be the clear winner.
forty small LEDS in series with a forward voltage drop of 3 volts each can run directly off 110 volts with just a full wave rectifier and a dropping resistor. (Sorry for the tech talk.)

Peter Bergquist

Great article.

You should also look at an undiscovered disruptive technology at www.delugeinc.com.

Deluge, Inc. has tested and perfected a breakthrough hydraulic engine design that is now ready for commercialization. The company has just successfully completed long term field testing of the technology, and has obtained patents on the design in nearly 40 industrialized countries world wide.

The new engine will have far reaching effects. It will significantly impact a wide variety of industrial applications in the nation’s infrastructure.

The Natural Energy Engine™, developed over the past 10 years, utilizes small amounts of heat energy from solar, geothermal, or any other heat source, including waste heat from existing processes. It can use this heat to efficiently generate electricity, desalinate or purify water, pump liquids such as water or oil, compress gas, and perform the same kinds of work done by today’s other engine technologies at significantly lower cost of infrastructure and operation.

The engine is notable in that it requires no combustion, operates virtually silently, and generates no emissions.

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