2 MW of installed capacity in Armenia, the largest portion of electricity generation comes from Metsamor Nuclear Power Plant at 38%, 33% from hydro power plants, 22% from gas-fired power plants, and the remaining 7% from other renewable sources. The electricity sector of Armenia includes several companies engaged in electricity generation and distribution. In 2020 less than a quarter of energy in Armenia was electricity. Electricity production tends to closely match demand, which in turn. Natural gas is imported primarily from Russia through Georgia, with a limited volume of natural gas imported from Iran in an electricity-for-gas swap arrangement. Nuclear fuel is imported from Russia. The government has. These investments modernized critical substations and 257 kilometers. The national electricity transmission system of Armenia is operated by the state-owned firm ArmEnergo, and consists of 164 kilometers of 330 kilovolt (kV) lines, 1,320 kilometers of 220 kV lines, and 3,146 kilometers of 110 kV lines.