There is often the questions about which motor shows the highest efficiency. In particular when talking about applications with limited power supply, such as a battery driven tool or a solar panel powered satellite. It’s worth expanding the question to the full drive system consisting of controller, motor, gearhead and other mechanics…
Invinity to build 20MWh flow battery in UK
A surprising comment for someone who (I think you´ve said in the past) worked in the industry. National Grid have a variety of reserve service schemes...