SMA adds high-efficiency inverters for solar energy utilities

SMA America expanded its U.S. line of utility products with the Sunny Central high efficiency line of solar inverters. The 500 and 630kW inverters provide integrators, project developers and EPCs with a utility-scale 1000VDC solution in the medium voltage interconnection category.

(August 2, 2010) — SMA America LLC, the U.S.-based subsidiary of SMA Solar Technology AG, has expanded its U.S. line of utility products with the Sunny Central high efficiency (HE) line of solar inverters. The new 500 and 630 kilowatt inverters provide integrators, project developers and EPCs with a utility-scale 1000VDC solution that features high efficiency in the medium voltage interconnection category of photovoltaic power.

The Sunny Central 500HE features a maximum output of 550 kVA, while the 630HE produces 700 kVA. Both provide full AC-rated active power while maintaining a 0.9 lagging/leading power factor range while operating continuously at 50°C. By connecting to an external medium voltage transformer to accommodate long-distance power feeds to distribution substations, the HE line suits utility installations with leading maximum and weighted efficiencies of 98.6 and 98.4%.

“The Sunny Central 500HE and 630HE inverters are key components of SMA’s fast-growing, North American utility-scale business,” said Jurgen Krehnke, president and general manager at SMA America, adding that they demonstrate SMA’s experience with multi-MW projects.

Integrated grid management features such as remote control of active and reactive power, automatic over-frequency response, automatic power factor adjustment, power curtailment and low voltage ride through provide power system operators with essential grid stability tools. Available with a 99% uptime guarantee, the new inverters are also designed to increase ROI for developers by maximizing energy production. SMA suits utility companies looking for grid control and reliability, as well as developers looking for an experienced business partner, said Dave Wojciechowski, director of sales for SMA America.

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Two Sunny Central 500HE or 630HE inverters can be combined in a packaged solution with one medium voltage transformer to provide a 1.00MW-MV Station or 1.25MW-MV Station, both of which simplify large-scale deployment.

The Modbus Gateway, OPC/ODBC interface and open SCADA communications allow for easy integration of the high-efficiency inverters into existing plant, utility, or third-party monitoring systems.

SMA’s North American HE line also consists of the Sunny Central 500HE-US, launched earlier in the year, which is designed for large-scale projects requiring UL-listing and is also available with a medium voltage transformer in a 1.00MW-MV Station.

The SMA Group provides photovoltaic inverters, a key component of all solar power plants. Learn more at www.SMA-America.com

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