Northern Power Systems achieves UL 1741 SB certification for its NPS 100C Wind Turbine
We are proud to announce that, as of February 3rd, 2026, Northern Power Systems has obtained electrical certification (listing) to UL 1741 Supplement B (UL 1741 SB) for our NPS 100C wind turbine power converter!
UL 1741 SB, aligned with IEEE 1547-2018 and tested per IEEE 1547.1-2020, is now a mandatory requirement in most U.S. jurisdictions to ensure that distributed energy resources actively support grid stability, rather than simply disconnect during disturbances.
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