This practical solution can be utilized for systems using Sunny Boy inverters up to 6,000 W. It employs a highly efficient toroidal 120/240 V autoformer to provide 240 V AC distribution for single Sunny Island systems. The Smartformer has step-up and step-down options for supply loads, enabling a highly efficient, dependable system that is also easy for users to maintain.
“The step-up and step-down options that the Smartformer provides for single Sunny Island systems increases design flexibility for off-grid or grid-tied battery backup systems,” said Jurgen Krehnke, president and general manager of SMA America and president of SMA Canada. “This solution is unique because it includes a bypass switch and a load shedding relay for battery discharge protection, which distinguishes the Smartformer from other autoformers by offering unmatched safety and versatility.”
SMA’s Smartformer features internal over-current protection, simplifying installation. The toroidal transformer offers 99 percent efficiency. It has an operating temperature range of -25 C to 60 C.
The Smartformer is paired with SMA’s US series of Sunny Island battery-based inverters, equipped with best-in-class grid and battery management functions, including monitoring. The Sunny Island acts as system manager to collect real-time data and make intelligent decisions based on battery state of charge, state of health, electrical loads and generation capacity. When used with the Smartformer, a Sunny Island system will use batteries more efficiently before activating a backup energy source.
The SMA Group generated sales of €1.7 billion in 2011 and is the global market leader for solar inverters, a key component of all PV plants. It is headquartered in Niestetal, near Kassel, Germany, and is represented in 20 countries on four continents. The Group employs more than 5,500 people worldwide, plus a number of temporary employees that varies on a seasonal basis. SMA’s broad product portfolio includes a compatible inverter for every type of module on the market and for all PV plant sizes. The product range includes inverters both for grid-connected PV plants and for off-grid systems. SMA can therefore provide an ideal inverter solution for all plant sizes and types. Since 2008, the Group’s parent company, SMA Solar Technology AG, has been listed on the Prime Standard of the Frankfurt Stock Exchange (S92) and also in the TecDAX index. In recent years, SMA has received numerous awards for excellence as an employer and in 2011 and 2012 achieved first place in Germany’s nationwide Great Place to Work® competition. www.SMA-America.com/