Enecsys will showcase new micro inverter products and solar PV monitoring systems on booth B7.C28 at EU PVSEC, September 5-8, in Hamburg, Germany. The new 480W Enecsys Duo micro inverter that supports fully independent power point tracking of two photovoltaic modules when converting the DC output of the PV modules to grid-compliant AC will be on show.

Also on show will be the 360W version of the Enecsys micro inverter that was launched earlier this year. These dual-input micro inverters from Enecsys bring the capital costs of solar PV systems down to those of systems based on string inverters.

However, string inverters typically need to be replaced at least once during the lifetime of the system while Enecsys micro inverters are expected to have a service life of over 25 years and come with a 20-year limited warranty, double the reliable operating life of solar PV systems based on string inverters. As with other Enecsys micro inverters, the SMI-D480W-60 and SMI360W-60 uniquely operate in real world conditions over an ambient temperature range from -40 to +85 degrees C.

Enecsys micro inverters mount on the rails behind each solar module, either one per module or, in the case of the Enecsys Duo models, one for every two modules.

With a patented design that eliminates electrolytic capacitors, the most life-limiting components in inverters, their reliability has been verified through industry-standard test methodologies including HALT, HASS and HTOL. The inverters have also been subjected to thermal cycling to IEC61215 standards, the same methodology used to test solar PV modules.

Micro inverters enable maximum power point tracking (MPPT) to be applied individually to each PV module to ensure maximum energy harvest. Solar PV systems based on micro inverters do not suffer from dramatic reductions in output when a module, or part of a module, has its output reduced by shading or build-up of surface debris.

As a result, Enecsys micro inverter systems extract between 5% and 20% more energy over the lifetime of the installation, compared with traditional residential and commercial solar PV systems using string inverters. The degree of improvement depends upon the system layout and the installation site.

Products within the Enecsys micro inverter family are safety and EMC tested and certified to EN 62109, G83, UL1741, TUV and CE. Country-specific requirements, including VDE V 0126-1: 2006 compliance, are achieved through the use of specific Enecsys installation products.

Each Enecsys micro inverter has a built-in ZigBee wireless monitoring system to provide real-time and historical data on the performance of every individual solar module. When connected to the Internet via the Enecsys Gateway, this enables online monitoring of system performance from anywhere in the world.

Enecsys is also demonstrating its new iPhone application for remote monitoring of solar PV module and system performance at EU PVSEC.

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