Аннотация:Nonlocal effects are known to be a challenging problem in nanoplasmonic phenomena simulation. In this paper a modification of the semi-analytical Discrete Sources Method is proposed to solve corresponding 3D scattering problems. In order to appropriately compute scattering characteristics we introduce the new type of discrete sources that enables to take into account non-local effects. Proposed discrete sources are then incorporated into the Discrete Sources Method hybrid scheme. An analytical account for the presence of the substrate via medium's Green Tensor is also included in our model as it drastically influences the scattering properties of the real photonic systems.