  Switchable and active metasurfaces allow for the realization of beam
steering, zoomable metalenses, or dynamic holography. To achieve this goal, one
has to combine high-performance metasurfaces with switchable materials that
exhibit high refractive index contrast and high switching speeds. In this work,
we present an electrochemically switchable metasurface for beam steering where
we use the conducting polymer poly(3,4-ethylene-dioxythiophene) (PEDOT) as an
active material. We show beam diffraction with angles up to 10{\deg} and change
of the intensities of the diffracted and primary beams employing an externally
applied cyclic voltage between -1 V and +0.5 V. With this unique combination,
we realize switching speeds in the range of 1 Hz while the extension to typical
display frequencies in the tens of Hz region is possible. Our findings have
immediate implications on the design and fabrication of future electronically
switchable and display nanotechnologies, such as dynamic holograms.
