NORTHERN POWER SYSTEMS

Wind turbines; electricity generators, namely, renewable energy-powered electricity generators and wind-powered electricity generators

Power converters; power inverters; power controllers; wind turbine controllers, namely, electronic control systems that control the voltage and current provided from wind turbines to other connected devices and to electrical transmission and distribution systems, the rotational speed of a wind turbines, the power output of wind turbines, and the startup, shutdown, protection and safety operations of wind turbines; electronic control systems for renewable energy generation sources comprising computer hardware and software that control the voltage and current provided from a renewable energy generation source to other connected devices, the power output of a renewable energy generation source, and the startup and shutdown operations of a renewable energy generation source; electronic controllers for use with power converters and power inverters, namely, electronic controllers to manage the speed, power, movement and functions of power converters and power inverters used in conjunction with renewable energy generation sources, wind turbines, and wind-powered electricity generators; wind turbine control systems comprising electronic sensors, namely, speed sensors, wind speed sensors, temperature sensors, vibration sensors and air density sensors, and related software to manage the power, movement and functions of wind turbines; computer hardware and computer software for use in controlling and monitoring the operation of equipment that consumes or generates power; automated process control systems, namely, micro-processor based hardware and software used to monitor the operational and mechanical status of wind turbines, renewable energy-powered electricity generators, and wind-powered electricity generators