Enecsys to demonstrate how solar PV micro inverters out-perform string inverters for service life, reliability and energy harvest Cambridge, UK, October 11, 2011: Enecsys Limited, a leading provider of reliable solar micro inverter systems, will exhibit its family of solar PV micro inverters and monitoring systems at booth 511 at Solar Power International, October 18th-20th, in the Dallas Convention Center, Dallas, Texas, USA.

Compared to solar PV installations that use string inverters, micro inverters deliver 5% to 20% greater energy harvest over the system lifetime by applying Maximum Power Point Tracking (MPPT) to each solar module to optimize energy harvest.

As a result, there is no dramatic reduction in system output when a solar module, or part of a module, has its output reduced by shading or build-up of surface debris. This is because each solar module and its connected micro inverter act as an independent AC generator that is connected in parallel, and not in series as they would be in a string inverter based system.

Enecsys micro inverters are based on a patented design that eliminates electrolytic capacitors, the most life-limiting component in other inverters, and replaces them with long-life film capacitors. As a result, Enecsys micro inverters deliver full performance from -40 degrees to +85 degrees C ambient temperature, operate at up to 96% efficiency, and come with a 20-year warranty.

Competitive products usually have warranties that limit operation to a maximum ambient temperature of +65 degrees C, a restriction that in many locations can invalidate warranties. Operating in real-world conditions behind solar modules on rooftops, the ambient temperature is often above this range.

In addition to micro inverters that connect to single solar modules, Enecsys Duo models, available in 360W and 480W versions, will also be on display. These Duo models support fully distributed MPPT of the two connected solar modules and convert their DC output to grid-compliant AC power.

Enecsys Duo micro inverters make the capital cost of micro inverter-based solar PV installations comparable to those based on string inverters.

Additional benefits of Enecsys micro inverters include easier system design and installation, improved safety for installers and firefighters due to the elimination of dangerous high voltage DC wiring, and the ability to locally or remotely monitor, in real time, the performance of individual solar modules.

Using the Enecsys Internet Gateway, such monitoring can be conducted from any computer or iPhone connected to the Internet - this capability will also be demonstrated at the show.

Enecsys micro inverters are certified to international safety and EMC standards including 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.