New roof-integrated system with Isofoton modules 

The SOLRIF roof-integrated system, from the metal construction firm Ernst Schweizer AG, is now available as a standard commercial product. 

© Biohaus 

As fast as putting up roof tiles: The Isofoton 150 W modules, framed in a SOLRIF aluminum casing from Ernst Schweizer AG, are laid directly on the roof beams.

The Spanish manufacturer Isofoton has begun assembling its monocrystalline 150 W modules with an aluminum rim from Schweizer for delivery to their German distributor, Biohaus PV Handels GmbH, which also offers a complete mounting system. The 100 × 135 cm modules, which are fastened on the roof with stainless steel mounts, have multi-contact connection cables. A zinc sheet metal plate provides waterproofing where the modules end and the tiles begin. Through ventilation openings above and below the module area, a cooling effect is produced, which, according to promotional material from Biohaus, results in a higher energy yield than from both roof-integrated systems without underside ventilation and normal roof installations. Biohaus did not provide any measurements. The system, including inverter, costs about 12,000 DM ($5,670 USD) per kW and can be delivered internationally.

Biohaus PV Handels GmbH 
Otto-Stadler-Strasse 23 
33100 Paderborn, Germany 
phone +49/5251/750050-0, fax -10 
pv@biohaus.de
 
www.biohaus.de

Johannes Bernreuter, William P. Hirshman
© PHOTON International, March 2001