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Current issue

ELEKTRO 12/2018 was released on December 12th 2018. Its digital version will be available on January 1st 2019.

Topic: Measurement engineering and measuring instruments; Testing industry and diagnostics

Main Article
Thermovision measurement in electrical power engineering
Smart Cities (part 5)

SVĚTLO (Light) 6/2018 was released on December 3rd 2018. Its digital version will be available on January 4th 2019.

Luminaires and light apparatuses
Modular floodlights Siteco
Decorative luminaire PRESBETON H-E-X from the integral series town equipment
LED luminaires ESALITE – revolution in sphere of industrial lighting

Daylight
About median illumination by daylight
Professional colloquium Daylight in practice

ASU research demonstrates silicon-based tandem photovoltaic modules can compete in solar market

31.07.2018 | Arizona State University | www.asu.edu

New solar energy research from Arizona State University demonstrates that silicon-based tandem photovoltaic modules, which convert sunlight to electricity with higher efficiency than present modules.

Tandem modules stack two, complementary photovoltaic materials — for instance, a perovskite solar cell atop a silicon solar cell — to best use the full spectrum of colors emitted by the sun and exceed the efficiency of either constituent solar cell on its own. The study was designed to determine how much more expensive high-efficiency tandem photovoltaic modules can be and still compete in the evolving solar marketplace.

Tandem photovoltaic modules

Results indicate that in the expected 2020 U.S. residential solar market, 32-percent-efficient anticipated tandem modules can cost more than three times that of projected 22-percent-efficient silicon modules and still produce electricity at the same cost. This premium, however, is a best-case scenario that assumes the energy yield, degradation rate, service life and financing terms of tandem modules are similar to those of silicon modules alone.

Read more at Arizona State University

Image Credit: ASU Holman Lab

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