Designed with safety and sustainability in mind, the concept EX03 electric wheeled excavator concept Designed with safety and sustainability in mind, the concept EX03 electric wheeled excavator with innovative rear screen safety feature made its debut at CIIE 2020. The EX03 by Volvo Construction Equipment (Volvo CE) is the company’s first electric prototype in the mid-size excavator range and with low noise, zero exhaust emissions and reduced maintenance, it represents the future for safer and more environmentally responsible construction sites on the larger end of the scale.