This allows Georgia to export an additional 700 MW of electricity to Turkey. The backbone of the transmission network is a 500 kV line connecting Georgia to the Russian Federation and Azerbaijan, and running through Tbilisi and northwest Georgia where the largest power plants (Enguri and Vardnili HPPs) are located. Its share in total energy consumption is about 20 per cent. Firewood is mainly consumed in rural areas for cooking and heating purposes. For these purposes, the average rural household consumes 5-15 m3 of firewood annually.