The SWT-3.3-130LN operates at a reduced rotor speed, while the B63 blade surface uses trailing edges that are equipped with a combination of serrations and combs the company calls ‘Siemens DinoTail Next Generation.’

“The new model closes a gap in our portfolio: wherever an IEC IIA class turbine is needed, but noise protection requirements set limits, this wind turbine is the definite first choice,” Siemens onshore wind chief executive Thomas Richterich says.

With