There is provided mechanisms for average EIRP control of at least two radio power sources. A method is performed by a coordinating controller of a site. The site comprises the at least two radio power sources. The method comprises obtaining, from a respective inner controller of each of the at least two radio power sources, power control feedback information. The method comprises determining, according to an inner control loop for each of the at least two radio power sources, coordinating control information from the power control feedback information. The method comprises performing individual average power control of each of the at least two radio power sources by providing, to each respective inner controller, the coordinating control information, whereby total average transmission power of each of the at least two radio power sources is selectively adjusted based on the inner control loop.