The paper aims to provide an outline of energy-efficient solutions for base stations of wireless cellular networks. By exploring the. . The stable operation of mobile communication networks directly depends on the uninterrupted and reliable supply of electricity to base stations. Practice shows that the existing energy supply sources - the power grid, diesel generators and batteries - do not allow for effective operation in. . In today's 5G era, the energy efficiency (EE) of cellular base stations is crucial for sustainable communication.