Summary: The Main Board of the Association of Polish Electrical Engineers (SEP) passed a resolution that the patron of SEP in 2018 will be Fr. Józef Herman Osiński (1738-1802). The Rzeszów Branch of SEP was authorized to organize the main celebrations of the 280th anniversary of the birth of this outstanding scientist. His biography and achievements fully confirm the rightness of this decision. Below is the silhouette of priest. Józef Herman Osinski, with particular emphasis on his activity in Rzeszów. The following describes silhouette Fr. Herman Joseph Osinski with particular emphasis on its activities in Rzeszow, during which was published the first handbook of electrical engineering in Poland dedicated to lightning protection (1784).