Effect of Fence on VAWT Wind Turbine Naca 0015

including those that use the VAWT model. This research was carried out experimentally. which has a vawt model by varying the wing tip to determine its performance. This vawt prototype uses 2 blade and 4 blade variations with a blade height of 1.5 m with a radius of 0.75 m. The results recorded are the amperage voltage and power produced which is shown using the wing tip performance. The performance increases compared to without a fence, as well as for blades that use 2 blades and 4 blades, it increases compared to those that use an additional fence with a size of 60 degrees, the performance increases compared to those that have a fence of 90 degrees