سوال ۱۸ کنکور ارشد مهندسی برق ۱۴۰۵

Read the following excerpt (paragraph 2) and answer the question.

"The first widespread application of electric circuits for practical use was for electric lighting. Shortly after Thomas Edison invented his incandescent light bulb, he sought practical applications for it by developing an entire power generation and distribution system. The first such system in the United States was the Pearl Street Station in downtown Manhattan. It provided a few square blocks of the city with electric power, primarily for illumination."

According to paragraph 2, what was the main function of Pearl Street Station in downtown Manhattan?