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Remote power, air conditioning & refrigeration from common solar-heated
bath-water collectors!


Solar      Geothermal   

Co-generation      Biomass



"By eliminating the primary impediment of the low-temperature Rankine cycle, Matteran Energy changes solar thermal power into an extremely cost-effective prospect."



An independent thermodynamic analysis by SATOP (NASA's Space and Technology Outreach Program) concludes that, in addition to much lower temperature abilities, the theoretical efficiencies are 15% improved over comparable Rankine cycles heated to 150ºF (65ºC).











A series of successful prototypes have culminated in a residential-scaled power unit recently proven effective at refrigeration and air conditioning.

1/3rd ton refrigeration effect:  -4ºC (24ºF)

Matteran's recently-completed demonstrator producing ice-making refrigeration temperatures.




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Matteran Energy Corporation

Originators of the patented thermodynamic power cycle which converts extremely low-grade thermal sources into power to make electricity, hydrogen fuel, refrigeration and air conditioning.

The video below provides all the details......



Our industrial supporters, ConocoPhillips Petroleum, and GEA Heat Exchangers, provide modest assistance in their fields of expertise.


This is a thermodynamic cycle invented in 1995 by Jeff Sterling of Miami, Fl. It should not be confused with the unrelated Stirling engine invented in 1816.

Double-click the image to run the AutoCad 3D height perspective.
Our next power plant, above, stands 8' height.

Jeff Sterling atop power plant
Jeff Sterling, atop the earlier 22 ft height prototype.

Will the energy in a sun-drenched garden hose soon replace expensive solar cells to air condition & power your home? If so, then solar thermal has reached new meaning.

When Jeff Sterling envisions “solar thermal power”, he pictures the mild warmth in a sun-drenched garden hose fueling his new residential-scale power plant. Why? Because no matter how you look at it, the least expensive form of solar energy is collected as mildly warmed water.

And because Sterling’s power process produces more electricity from mildly warmed water than was previously imagined possible, his idea of an economical solar thermal power plant is in stark contrast to those incredibly hot and expensive mirrored solar farms so often touted by the media.

Sterling’s power plant produces economical electricity from mildly warmed water. The beauty is that there are no dangerous pressures or temperatures. It’s like a steam engine running at the temperature of a cup of hot chocolate.

According to the IEA, 1.3 billion people have no access to electricity, much less the “luxury” of refrigeration. Yet, everybody has access to the mild warmth that fuels Sterling’s power cycle.

Developers of other solar thermal power plants keep moving in the direction of progressively higher temperatures and larger mirrored solar fields. But Sterling’s power plant remains economical while operating on a residential scale fueled by low-cost solar collectors.

“Our development company, Matteran Energy, has progressed the extra step to produce economical electricity, refrigeration and air conditioning from solar heated bath water."

And what about the future of photovoltaic solar panels which produce electricity directly when exposed to sunlight? From Sterling’s perspective, PV is quite pricey. A remote PV system capable of powering your home’s air conditioner could easily cost more than the value of your home. Meanwhile, the global demand for remote power is growing, pushing the PV market to $82 billion in 2010. Still, the discerning public will wait for a more practical, affordable solution. Matteran Energy's low-temperature power plant isn’t restricted to sunny days or even solar energy for that matter. It expands the alternatives for remote renewable power and does so with a more reasonable price tag, relegating PV to the tiny niche it’s presently serving.

“This past September, we proved our process on a useful scale. We ran our 1/3rd-ton air conditioner down to 25º Fahrenheit. We're making ice and air conditioning from warm water! What could be more simple, or less expensive?” Developers at Matteran Energy are preparing Sterling’s residential-scaled prototype for a public demonstration of its capabilities.

In addition to the sun, Sterling envisions his power plants fueled by other readily available low-temperature renewable sources of energy. “We’ve identified a wide-spectrum of global demand, ranging from the co-generation of electricity fueled by the waste-heat of a skyscraper’s air conditioner, down to something as ‘green’ as powering a mountain cabin’s electrical appliances fueled by the heat rising up its wood-burning chimney.”


The SterlingThermodynamic Cycle was invented in 1995 by Jeff Sterling of Miami, Fl. It should not be confused with the unrelated S t i r l i n g engine invented in 1816.








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