Enecsys Limited, supplier of reliable solar micro inverter systems, unveils the SMI-D480W-60, a 480 Watt micro inverter that mounts on the railing system and accepts DC input from two individual solar modules. This Duo micro inverter enables maximum power point tracking for both modules and reduces inverter cost compared with using one micro inverter per module so that there is no cost premium over string inverters.
The DC power generated by the two solar modules is converted into a single, grid-compliant AC output in the 480W unit, which has a maximum input current of 24A. With a peak efficiency of 96 percent and Euro efficiency of 94 percent, the new micro inverter is housed in an IP66-rated enclosure. It weighs 2.1kg and the main body measures 245mm x 160mm x 40mm. The Enecsys SMI D480W-60 has the highest power density of any commercially available solar micro inverter.
The SMI-D480W-60 micro inverter operates from -40 to +85 degrees C, has over 25 years' service life and is supplied with a 20-year limited warranty. Solar PV installations with Enecsys Duo micro inverters deliver 5 percent to 20 percent more energy over the life of the system, depending on the operating environment and installation configuration. Using Enecsys micro inverters eliminates the problem of dramatic reductions in energy harvest when solar modules are mismatched or when one module, or part of a module, has its output reduced through shading or accumulation of surface debris. This causes major energy harvest problems for string
inverter systems.
Based on a patented inverter design that removes life-limiting components, including electrolytic capacitors and opto-couplers, the reliability of the Enecsys SMI-D480W-60 has been verified using industry-standard test methods including HALT and HTOL. The inverters have also undergone thermal cycling to IEC61215, the same tests applied to solar PV modules.
The Enecsys SMI-D480W-60 meets CE, EN 62109 and EN 6100-6 safety and EMC standards. Like other products within the Enecsys micro inverter family, it has UL1741 certification that is required for the US and Canadian markets. Country-specific requirements, including VDE V 0126-1:2006 compliance, are met by using specific grid connection products.
Each Enecsys micro inverter has a built-in wireless communication system that transmits detailed performance information for the connected solar modules to the Internet via the Gateway, enabling real-time and historical monitoring.
A new iPhone application, compatible with iPhone 4 and iPhone 3GS models, is also announced. Installers can use the application to monitor multiple sites located anywhere in the world, from anywhere with a mobile data connection. For each site, information is provided about the installation date, location, current weather conditions and real-time as well as historical system performance information.
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