Omterra Siemens Energy, Siemens Gamesa Renewable Energy to Merge Under New Brand NameSiemens Energy and Siemens Gamesa Renewable Energy will be integrated under the new brand name ‘Omterra.’ In the future, Siemens Energy and Siemens Gamesa Renewable Energy will be united under a single name and brand umbrella: Omterra. (Source: Siemens Energy)Munich/Germany – Following the spin-off from Siemens in 2020 and the company’s successful development, Siemens Energy is now beginning preparations for the transition to an independent brand. In the future, the current entities Siemens Energy and Siemens Gamesa Renewable Energy will be united under a single name and brand umbrella: Omterra. "Since our spin-off, it has been clear that the licensed Siemens Energy brand would be available to us for a limited period.