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German company finds that using reflectors near solar PV panels increases generation by 14%

By Kelly Pickerel | March 11, 2019

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As confirmed by the test results of a two-year pilot phase, an innovative reflector and calculation system known as “pA reflect” from plusAmpere GmbH offers increased generation potential for operators of PV facilities: Under real-life conditions, the yield measured at a reference facility in Southwest Germany showed an average annual increase of 14%. The PV modules were fitted with reflectors at one of two inverter input points.

Specific challenges included the creation of the calculation tool and the evaluation of the generated data. Taking into account project-specific parameters, the calculation software is used to establish values such as reflector surface, angle of inclination and anticipated yield increase. The aim is always to look for the best possible cost-benefit ratio. Doubling the reflector surface does not automatically lead to a doubling of the additional yield. Project-specific data includes, for instance, the geographic location of the PV facility, the azimuth and inclination angle of the modules, the movement of the sun and many other factors.

“Compared with current solutions to increase the performance of roof- or ground-mounted installations using rack structures, our innovative reflector and calculation system is very advanced,“ said Klaus Scholl, founder and managing partner of plusAmpere GmbH.

In order to mirror the incoming solar radiation onto the PV modules, the reflectors are installed between the PV module rows. This retrofitting solution does not require the acquisition of additional surfaces, is profitable and can, in practice, be implemented quickly.

After the successful completion of the pilot phase, plusAmpere has, since the end of last year, been concentrating on marketing its innovation; the intention is to expand its international sales activities and contacts from its base in Kaiserslautern, Germany. In the first six months of 2019 two further PV facilities will be optimized with the help of “pA reflect.”

News item from plusAmpere

About The Author

Kelly Pickerel

Kelly Pickerel is editor in chief of Solar Power World.

Comments

  1. Curt Vaskey says

    March 16, 2019 at 10:32 am

    Have been telling people this since the 60’s. Another guy and I owned another solar company out of Wichita KS. We told people to use reflecting dysyd and tracking or tilting systems
    One customer used an old satellite dish for tracking
    You get into problems with wind, especially on Kansas

    Reply
  2. Dennis Bevington says

    March 13, 2019 at 11:01 pm

    I
    With an array in the North, 60+ latitude, solar panels are mounted for winter sun at 70+ degrees. As such large increases in production come from snow reflection from ground or flat roofs.

    Reply
  3. Paul M. says

    March 13, 2019 at 4:41 am

    I have been doing this for years in my car! I travel and live in my SUV. I park facing north with my reflective Mylar sun screen securely mounted on the outside of the window. A) It keeps the inside of the car much cooler when mounted on the outside and B) My solar panels quickly mount to my hood in an arc, facing upwards towards the high noon sun and south towards the windshield which yields a much faster and higher charge. Because I like to tinker. People are seemingly amazed when they observe me doing this and annoyingly stop to talk all the time.

    Reply

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