Clean Power

Published on January 17th, 2013 | by James Ayre


New Solar Stirling Dish Efficiency Record Of 32% Set

January 17th, 2013 by  

A new efficiency world record of 32% has been set for 30kW Solar Stirling dish modules by Ripasso Energy, a solar technology provider based in Sweden.


The new Ripasso Energy Stirling Dish modules have proven to be an effective converter of sunlight into electricity in most climates, but most especially in hot and dry climates. It’s in these types of environments that the system is efficient enough to convert roughly one third of solar energy into electricity.

Stirling dish technology has long been noted as a promising technology with many innate advantages when compared to other types of solar power. But until now there hasn’t been much commercial development.

Ripasso Energy wrote in a news release sent to CleanTechnica: “The Ripasso Energy solution is modularized without any need for central turbines or DC/AC converters allowing step-by-step implementation with generation starting from the first units in service. Low environmental impact in combination with low Levelized Cost Of Energy (LCOE) offers a new ‘Fast-track’ path for solar based world future energy in ‘the sun belt’.”

“The solar conditions in parts of MENA, South Africa and Chile indicates that it is possible to obtain LCOE levels of less than 0.1 Euro per KWh for a 30 MW plant and even lower for larger plants where 0.05 Euro per kWh is our target,” says Carl Ohlen, Marketing & Sales Director for Ripasso Energy. “This makes the Stirling dish competitive with all other electrical energy technologies in these countries and also feasible in other regions in Asia, Australia and Americas with relatively high solar radiations.”


Ohlen continues: “Recent reports from IEA, the World Bank as well as the negotiations at the latest UN COP conference in Doha all points out the urgency to de-carbonize the energy system. The Ripasso Energy Stirling Dish offers here an efficient solution with fast implementation for many countries in need of electricity.”

Their first commercial power plant is currently being built in South Africa.

The all-in-one stand-alone nature of the technology makes it very appealing. When that’s combined with its apparent cost-effectiveness in sunny regions, it’s hard to imagine that the technology won’t be a large part of future energy development in those regions.

Image Credits: Ripasso Energy

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About the Author

's background is predominantly in geopolitics and history, but he has an obsessive interest in pretty much everything. After an early life spent in the Imperial Free City of Dortmund, James followed the river Ruhr to Cofbuokheim, where he attended the University of Astnide. And where he also briefly considered entering the coal mining business. He currently writes for a living, on a broad variety of subjects, ranging from science, to politics, to military history, to renewable energy. You can follow his work on Google+.

  • dormantideas

    Hey dreamers! Several other companies have that technology. The dish needs to be 20 ft across to produce about 3.5Kw(1 house worth per year) + all the equipment needed to manage the power produced and you are looking at a quick 25K to 35K investment. The frame and base needed to support and make wind worthy this massive frame is no toy! Assuming you build 2 of 12 ft… and here goes your cost up. It may be feasible for large scale commercial applications…power centers… but individual level will be a chase… you could make a home-built version with an Azimut from a telescope but the sterling engine you use will not be optimum, nor the electronics needed to run the movement(follow the sun) and power management… it may eat up-to-a 3rd of your output… the pros have it down to 7%, with proprietary sterling engines, and control panels!

    I can tell you that 20 ft threshold will quickly become 6 ft for you or me, and that means building 4 of them that need to be synced up! Big problem, the 6 ft level drops drastically in output, yet requires almost the same cost in supporting peripherals… see what I mean?!

    hmmm… be ready to compete with the big guys who have millions to build the prototype you will be attempting to piece together off your kitchen table!… and a hail shower will have the same effect it does on crops! Gotta have a hail dome ready to auto-or at least remote-deploy with an auto weather alert contingency plan…

  • where can i buy one?

  • tibi stibi

    0.05 euro per kWh is off course perfect! that is better than almost all other options especially for newly build. and for most countries this will also be the difference of paying most of the 0.05 (or 0.06 or even more) to other countries but with this technology most can be done in the country itself!

    • yeah, that’s a super exciting figure! was shocked to see it. this is clearly a tech & company to keep an eye on! 😀

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