After the hydroelectric project was completed in 1976, a large number of inhabitants moved away, with the population falling by almost a third between 1970 and 1979 but remaining fairly stable in the following years.
Chernyshevsky is the site of the Vilyuy Dam, the first major hydroelectric project in the world to be built on permafrost, and with the coldest operating conditions of any hydroelectric plant in the world.[10] The dam and the associated hydroelectric plant (Vilyuyskaya GES) are the main employers. The plant has a capacity of 680 MW and supplies power for the diamond mining activities in the nearby Udachny and Mirny.
There is also some fish farming in the reservoir behind the Vilyuy Dam, as well as some timber production and a geological research organization.
^ abAccording to Article 7 of the Law #77-I, lower-level administrative divisions with the status of a settlement have their administrative centers in an inhabited locality with the status of an urban-type settlement. According to the Registry of the Administrative-Territorial Divisions of the Sakha Republic, Chernyshevsky is the administrative center of the Settlement of Chernyshevsky.
^ abcdefghRegistry of the Administrative-Territorial Divisions of the Sakha Republic
^Всесоюзная перепись населения 1979 г. Национальный состав населения по регионам России [All Union Population Census of 1979. Ethnic composition of the population by regions of Russia] (XLS). Всесоюзная перепись населения 1979 года [All-Union Population Census of 1979] (in Russian). 1979 – via Demoscope Weekly (website of the Institute of Demographics of the State University—Higher School of Economics.
^Yanity, Brian B. (2007). Cold Climate Problems of a Micro-hydroelectric Development on Crow Creek, Alaska. pp. 8–9. ISBN978-0-54945-634-6.
Official website of the Sakha Republic. Registry of the Administrative-Territorial Divisions of the Sakha Republic. Mirninsky District. (in Russian)
Государственное Собрание (Ил Тумэн) Республики Саха (Якутия). Закон №173-З №353-III от 30 ноября 2004 г. «Об установлении границ и о наделении статусом городского и сельского поселений муниципальных образований Республики Саха (Якутия)», в ред. Закона №1058-З №1007-IV от 25 апреля 2012 г. «О внесении изменений в Закон Республики Саха (Якутия) "Об установлении границ и о наделении статусом городского и сельского поселений муниципальных образований Республики Саха (Якутия)"». Вступил в силу со дня официального опубликования. Опубликован: "Якутия", №245, 31 декабря 2004 г. (State Assembly (Il Tumen) of the Sakha (Yakutia) Republic. Law #173-Z No. 353-III of November 30, 2004 On Establishing the Borders and on Granting the Urban and Rural Settlement Status to the Municipal Formations of the Sakha (Yakutia) Republic, as amended by the Law #1058-Z No. 1007-IV of April 25, 2012 On Amending the Law of the Sakha (Yakutia) Republic "On Establishing the Borders and on Granting the Urban and Rural Settlement Status to the Municipal Formations of the Sakha (Yakutia) Republic". Effective as of the day of the official publication.).