Generating electrical power for a cellular tower using solar troughs. Unlike typical long, straight solar troughs, the solar troughs are formed into circular or other shapes such that they at least surround the cellular tower and may be attached to it at different heights. One or more tubes are positioned within each of the solar troughs such that a heat-transfer fluid flowing through the tubes is heated by sunlight reflected from the solar troughs. One or more energy-conversion devices receive the heat-transfer fluid or a byproduct of the heat-transfer fluid to generate electrical power. One or more power-storage devices store and deliver the electrical power.