Solar Builder

JAN-FEB 2019

Solar Builder focuses on the installation/construction of solar PV systems. We cover the latest PV technology (modules, mounting, inverters, storage, BOS) and equip installers/contractors with tips and tools to make informed purchasing decisions.

Issue link: http://digital.solarbuildermag.com/i/1072350

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44 JA N UA RY / F E B RUA RY 2 0 1 9 Silfab Silfab's SLA-MWT 320 W (Metal Wrap Through) technology removes all stringing and bussing from the front side of the module by integrating a conductive metallic layer to the backsheet for the purposes of conveying current to the junction box. This reduces both resistance and cell shading which ultimately yields higher module efficiency. By removing the conventional stringing process from the module production line, operational efficiencies can be recognized. Ultra-high efficiency modules are optimized for both residential and commercial projects where maximum power density is preferred. Warranty: 25-year product, 30-year performance. Rated power 320 W Cell type monocrystalline Cell efficiency N/A Module efficiency N/A Short-circuit current 9.99 Open circuit voltage 40.5 Rated current N/A Rated voltage N/A Temperature coefficient (Pmax) -0.38% Quantity per pallet 26 Module Buyer's Guide Economics over efficiency 3 Counter to the half-cut movement is the idea that chasing that extra bit of effi- ciency juice isn't worth the squeeze, so to speak. Silfab Solar is taking a different approach, believing the tinkering with the glass size and cell cut of conventional mono and mono PERC technologies won't result in enough efficiency gains. Instead, Silfab is focusing on the adoption of next generation technologies that could allow material gains in module wattage while maintaining attractive price points, such as metal wrap through (MWT) and interdigitated back contact (IBC). Silfab says the practice of leading with a high priced premium brand and fol- lowing up with a low price economy brand in price-conscious situations can lead to reduced revenues and margins. "There are price effective premium brands that allow EPCs to standardize on a single module partner, recognize better revenues in cost-conscious scenarios (like larger system sizes) and recognize better margins on the remainder of the system in terms of premium value/wattage with- out premium pricing," Silfab tells us.

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