earticle

영어

Off-grid telecom towers are expected to continue to grow especially in the developing countries. Diesel generators have been typically used as a power source for off-/bad-grid telecom towers as they are more reliable than renewable energies. However, running diesel generators are not economically and environmentally preferable due to high fuel and maintenance costs. In this paper, two hybrid power systems are introduced - one with a vanadium redox flow battery energy storage system (VRFB ESS), and the other with VRFB ESS and PV. Cost analyses were carried out to calculate the benefits of the hybrid power systems. Presented hybrid power systems allow to reduce annual operation cost as high as 60%.