Technologies related to a photovoltaic array apparatus are generally described. In some examples, the apparatus may comprise a central hub, adjustable length struts, and a plurality of photovoltaic segments coupled to the central hub and struts. The photovoltaic segments may be selectively positioned between a stowed arrangement and a deployed arrangement by operation of the central hub and/or struts. In the stowed arrangement, the photovoltaic segments may be stacked, and in the deployed arrangement, the photovoltaic segments may be may be azimuthally displaced about the central hub. A control system coupled to the struts may be configured to control the struts to dynamically orient the photovoltaic segments so as to maximize, or otherwise adjust, power collected from incident radiation.