The three aerofoil blades, with a diameter of 3.0m, are managed by a passive pitch control system that allows the e300i to continuously generate usable energy in wind speeds that exceed rated wind speed. This is one of the factors that contribute to the e300i being one of the best machines in its class in terms of overall energy harvest on an annualised basis. The e300i advanced design moderates noise emissions effectively, making it an inconspicuous power source in all installations and environments.