2014 Single and 3-Phase String Inverters

Updated for 2014, SolarPro’s annual string-inverter dataset includes 140 wall-mountable inverter models from 18 manufacturers. In addition to providing a format for comparing electrical and mechanical specifications model by model, this table is also useful for teasing out some interesting trends when compared to our 2013 string-inverter dataset.

Our 2013 dataset presented specifications for 111 single and 3-phase inverter models. Of these, 47% had transformerless, non-isolated topologies, and only two inverters (the Aurora Trio-20.0 and Trio-27.6 models from Power-One) were listed to UL 1741 for 1,000 Vdc applications. This year, 61% of the models included are non-isolated, and 18 are certified for 1,000 Vdc projects. Another interesting trend: In 2013, 19 string-inverter models with a rated ac power output of 10 kW or greater and 17 models with 3-phase output were available for US projects. This year, 41 models have rated ac power capacities of 10 kW or greater, and 37 models have 3-phase outputs. In general, these trends indicate a growing market acceptance for string inverters in large commercial, industrial and even utility-scale projects.

The power conditioning products included in this table are listed to UL 1741 by a Nationally Recognized Testing Laboratory (NRTL) and most of them have been identified in the CEC list of eligible inverters per SB1 guidelines. In addition, all of the manufacturers represented in the table maintain an established US sales and technical support office.

SolarPro permits and encourages solar companies to integrate this data with their own system sales and design databases.

CONTACT:

Joe Schwartz / SolarPro magazine / Ashland, OR / solarprofessional.com

Manufacturers

ABB (Power-One) / 877.261.1374 / abb.com/solarinverters

AE Solar Energy / 877.312.3832 / advanced-energy.com

Chint Power Systems / 855.584.7168 / chintpower.com/na

Danfoss / 855.335.2912 / danfoss.us/solar

Delta Americas / 510.668.5100 / delta-americas.com

Eaton / 800.386.1911 / eaton.com

Eltek / 469.330.9100 / eltek.com/us

Fronius USA / 877.376.6487 / fronius.com

Ideal Power / 512.264.1542 / idealpower.com

Ingeteam / 408.524.2929 / ingeteam.com

KACO new energy / 415.931.2046 / kaco-newenergy.com

Schneider Electric / 888.778.2733 / schneider-electric.com

Silicon Energy / 360.618.6500 / silicon-energy.com

SMA America / 916.625.0870 / sma-america.com

SolarEdge Technologies / 877.360.5292 / solaredge.us

SolarMax / 404.334.7098 / solarmax.com

Solectria Renewables / 978.683.9700 / solectria.com

Sungrow North America / 619.397.8000 / sungrow.ca

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