PHOTON International The Photovoltaic Magazine

Alwitra's largest solar roofing membranes yet

In January, Alwitra GmbH & Co. expanded its range of flexible solar roofing membranes with two new models – one of them, the company's largest yet.

© alwitra GmbH & Co.

Scaled up: Alwitra's latest solar roofing membrane covers an area of 9.3 m².

The Evalon V-Solar 192 and 384 have nominal powers of 192 and 384 W, at a tolerance of +/- 10 percent. Each model contains three laminates, based on amorphous triple-junction technology, from United Solar Ovonics LLC. The laminates used in the smaller model have a nominal power of 64 W each; those in the larger model have 128 W.

Both new modules are certified according to IEC 61646 and class II. UL-listing currently is not planned, since Alwitra doesn't actively promote the modules in the US. »It would be easy to make up for this if the need arose,« says Helmut Remmels, head of the technical department at Alwitra, »since United Solar's laminates are listed already.«

	© alwitra GmbH & Co.
New sealant: Alwitra offers a new component designed for the airtight lead-through of cables of up to four Evalon solar foils through the roof layers.

The products' power guarantee is 20 years on 80 percent of nominal power, and Alwitra gives a product warranty of ten years.

The net price per W for 100 kW is €4.21 ($5.23) for the smaller module and €4.02 ($4.99) for the larger one. Both solar roofing membranes are offered worldwide; delivery time is 40 days.

Together with the new solar elements, Alwitra launched a component designed for the airtight lead-through of cables of up to four Evalon solar foils through the roof layers under the sealant. According to Remmels, the cable lead-through for the company's solar roofing foils as yet had to be sealed with silicon paste.

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Alwitra GmbH & Co.
Am Forst 1
54290 Trier, Germany
phone +49/651/9102-365, fax -294
profi-line@alwitra.de
www.alwitra.de