The History of Electricity In Mazandaran
There was no electricity in Mazandaran province until 1929 when the first diesel
electric generator with 120 kilowatt capacity , was installed in Gorgan , and
was utilized under supervision of municipality, in replace of oil and petroleum
that were widely used in Mazandaran. Then following the installation of a diesel
generator with capacity of 120 kilowatt in Babol , the third one was installed
in Sari with 60 kilowatt capacity. Other cities of Mazandaran exploited similar
units under the management of municipalities and private sectors and delivered
electricity to different parts of the Province.
The capacity of the generator units did not suffice the increasing demands of
customers in all daily hours. Although the electricity was used mainly for
lighting , it was not enough to serve the normal consumption of consumers
reliably and there was electricity merely in part of the day with very low
voltage level and high voltage drop .