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Solway PV looks at growth

  • 22 Jul 2021 06:34
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The Solway PV work led by Prof Colin Stanley at the department of Electronics and Electrical Engineering in collaboration with colleagues at Universidad Politecnica de Madrid involve Intermediate Band Solar Cells (IBSCs) for concentrated photovoltaics.

 "The structure is, in essence, simpler; it is a single-junction device and does not require the same degree of current matching to make it work efficiently, nor does it need tunnel diodes," he says.

CPV technology, used for the production of solar energy, faces a number of challenges, not least  potential limitations in deployable locations.  But being most effective in areas with direct sunlight, research company Strategy Analytics believes that CPV technology has the potential for strong growth. 

In its GaAs & Compound Semiconductor Technologies (GaAs) service report, “CPV Technology Market Status Update and Future Prospects,” being presented at Solartech World 2011, March 16-17, in Gwangju, Korea, it predicts CPV installed capacity to grow at a CAGR of 174% through 2015.

Solar energy installations have  grown strongly. Strategy Analytics estimates that new global installations reached 16.3GW in 2010. Approaches using crystalline silicon continue to be the primary technology, followed by strong momentum behind a host of thin film technologies including cadmium telluride (CdTe) and copper indium gallium selenide (CIGS).

Concentrated PV (CPV) technology remains behind these technologies. “While potentially offering 100% improvement in efficiencies compared to other solar technologies, CPV is only really effective with high direct normal solar irradiation,” notes Asif Anwar

“While this has limited early deployment, the benefits of CPV will translate into rapid growth in these locations.”

“In 2010, some significant projects came into play in the southwestern United States, the Middle-East, Africa and Australia,” says Eric Higham director, GaAs service. “CPV installations will grow at a CAGR of 174% to account for just over 4% of global solar installations in 2015."

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