Kurchatov Institute of Nuclear Energy has been appointed the Supervisor of RBMK-1000 project, and Research and Design Institute of Energy Technology (NIKIET) of USSR Machine-Building Ministry - the General Designer May, 28, 1969 Resolution of SU Central Committee of CP and USSR Council of Ministers on financial estimates approval for construction of Chornobyl NPP top-priority facilities Chornobyl NPP.
December, 17, 1969 Decree of USSR Energy and Electrification Minister on Chornobyl Directorate establishment on January, 1, 1970.
Preparation of a foundation ditch for 1-st Unit started in May, 1970.

In July, 1971 construction of power line on 110 kwt s/s Chornobyl was finished.
On December, 7, 1971 Permanent Acceptance Commission on Chornobyl SRPP’s facilities was established.
From the beginning of construction slow pace threatened terms of 1-st power unit commissioning in 1975 on April, 14, 1972 Resolution of Central Committee CP of Ukraine and USSR Council of Ministers "On Chornobyl Nuclear Power Plant construction" was issued. In Resolution it was stated, that construction management of "Kremenchuggesstroy" of the USSR Energy and Electrification Ministry slowly deployed Chornobyl Nuclear Power Plant construction. The plan of works wasn’t implemented. Civil and erection works were carried out at a low engineering level, there were big losses of builder’s labour hours, the building technical equipment was not adequately used. Directorate of Nuclear Power Plant issued necessary constructional design estimates with delays and incompletely. The problem on a reserve electrosupply source for construction was not solved during long time.
On August, 15, 1972 the first cubic meter of concrete was laid in the foundation of the main building.
On January, 30, 1973. Decision of USSR Energy Ministry "On ChNPP Unit 1 commissioning in 1975" was approved
On April, 30, 1975 First Secretary of Central Committee CPU V.V. Scherbitskiy addressed to Chairman of USSR Council of Ministers A.M.Kosygin with the request to solve the problem on providing constructed ChNPP with the equipment. ChNPP’s personnel these difficult time bended a maximum effort to governmental terms assurance.
On May, 16, 1975 Commission on preparation and commissioning of ChNPP’s Unit 1 was established by Decree of ChNPP Director. Builders, assemblers and operational personnel with self-sacrificing efforts assured Unit 1 commissioning. Round-the-clock work on the critical paths of Unit commissioning schedule has been organized.
From the beginning of October, 1975 first fuel assembly (FA) began to come in fresh fuel storage.
On May, 15, 1976 according to the Preliminary Design requirement and SES the permanent radiation control in areas adjacent to the nuclear power plant was established.
In October, 1976 cooling – pond filling started.
In the beginning of May, 1977 the assemblers, builders, servicemen and operational personnel of ChNPP begun precommissioning works at Unit 1.
Since June, 8, 1977, restricted zone (RZ) was organized in connection with the beginning of works on fuel assembly
On August, 1, 1977 the first fuel assembly was loaded.
On August, 14 full-scale fuel loading was completed. For the first time fuel loading and the main experiments under the physical commissioning program was carried out 25 day ahead of expected term.
On September, 18, 1977 Reactor capacity rise began.
On September, 26 the turbogenerator № 2 was included in a grid.
On November, 2 turbogenerator № 1 was included in a grid. Development of capacities was carried out according to the integrated schedule approved by the commissioning committee.
On May, 24, 1978 Unit 1achieved capacity 1000 mwt, that was occurred 2 months ahead of the planned term.
On November, 16, 1978 . Physical commissioning of Unit 2 began.
On December, 19, 1978 Rise of Unit 2 reactor capacity began
On December, 21, 1978 the turbogenerator № 3 was included in a grid.
On January, 10, 1979 turbogenerator № 4 generated the industrial current. The ChNPP Unit 2 was commissioned.
On April, 22, 1979. Chornobyl NPP has generated first ten billions kwt/h.
On May, 28, 1979 Unit 2 achieved a designed capacity 1000 mwt, which have been developed during 5 months.
On October, 5, 1979 I stage of Chornobyl NPP achieved power rating 2 million kwt. It was spent 8 months on ChNPP Unit 1 development and 5 months on Unit 2 development.
On October, 21, 1980 electric main was energized - 750 kwt.
On December, 3, 1981 Unit 3 was commissioned.
On March, 8, 1982 ChNPP generated 50 billion kwt.
On June, 9, 1982 at Unit 3 it was achieved the designed capacity 1000 mwt 3 months ahead of the planned term.
On November, 25, 1983 1-st FA was loaded in the Unit 4 reactor.
On December, 21, 1983 the turbogenerator № 7 was included in a grid.
On December, 30, 1983 the turbogenerator № 8 was included in a grid.
On March, 28, 1984. Unit 4 achieved a designed capacity 1000 mwt ahead of schedule on 3 months and 5 days.
On August, 21, 1984 Chornobyl NPP had generated 100 billion kwt/h of electric power.