NOVELTY - The energy harvesting device (100) has an oscillator (102), and an energy converter (122) coupled to the oscillator. The energy converter is configured to generate electricity in response to movement of the oscillator. The difference between a critical wind speed for the oscillator with a perturbation and a critical wind speed for the oscillator without a perturbation is less than about 25 percent. The energy converter, which comprises of a piezoelectric element, a piezopolymer, or an electrostatic component, is integrated into the oscillator.    USE - Energy harvesting device used in energy conversion and harvesting. Can be used to convert wind energy to electrical energy using mechanical vibration.    ADVANTAGE - Provides an alternative energy source, which is renewable, has a small ecological footprint, and is compatible with building integrated power generation (BIPG) design. Provides an energy harvesting device which is effective in environments in which the wind velocity is much less than, e.g., the wind velocity required to start-up and maintain operation of rotary turbine e.g. windmills and related technologies. Includes any number of the oscillators as desired for efficient energy conversion at low wind speeds. Uses trapezoidal shape having parameters selected to produce an aeroelastic instability at the lowest wind velocity without hysteresis in a vibration amplitude-wind velocity relation. Ensures that the energy harvesting device has the potential to convert wind energy twenty-four hours a day, in comparison with solar panel technology. Ensures that the energy harvesting device can be combined with other alternative energy sources, e.g., solar panel technology to provide a hybrid wind-solar panel system.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a power panel; and    (2) an energy conversion and harvesting system.    DESCRIPTION OF DRAWING(S) - The drawing shows the side view of the energy harvesting device.    Energy harvesting device (100)    Oscillator (102)    Blunt-body portion (106)    Flexible structure (108)    Energy converter (122)    First converter device (124)    Second converter device (128)