"Kragerøvassdragets fellesfløtningsforening" () got the first rights to regulate and dam Toke (and Hoseidvann) in 1899. With the advent of electricity, the rights to dam Toke were given to "Norsk Elektrokemisk Aktieselskap" (Norwegian Electrochemical Corporation) in 1916. These rights were followed by more extensions and delays, before Toke was dammed around 1940 as it is seen today, from 185 to 200 feet (60.35-55.75m). On average, more than 8,400 gallons (32,000 liters) of water run out of Toke each second. On its path towards the sea the water is used for power production in five hydroelectric plants throughout the municipality of Kragerø.