Saving Study for Consumed in the Lighting System of a Milk Factory in Tripoli Operated on PV

To address the problem of illumination intensity resulting from the different usable ages, this study calculated the cost of replacing fluorescent lamps in a dairy factory located in Tripoli, Libya, which operates on a photovoltaic system before and after the end of its useful life. The aim of the study was to save electricity to reduce the load on the solar energy system, as the number of lamps was 6000 lamps. This also helped address the problem of the high cost of replacing damaged lamps individually. Using mathematical formulas as a technique, it was determined that replacing lamps at the end of their useful life costs 42,000 Libyan dinars annually, while replacing lamps after their useful life costs 84,000 Libyan dinars during the same period of time. This means that there are annual savings of 48.21% or 43,500 Libyan dinars. While preserving the transformers and wires, in addition to selling the replaced lamps that can be used again.