IEA’s 2023 profile identifies Russia, via Georgia, as Armenia’s main gas supplier, with an 87.7% share in 2021. Iran supplies gas through an electricity-exchange arrangement. These are dated structural baselines, not measured 2026 supplier shares. [58]
Armstat’s January–August 2026 table reports 7,027 million kWh generated: thermal plants produced 2,968.4 million, hydro 1,858.9 million, nuclear 939.5 million, wind 0.6 million and solar 1,259.6 million. The source includes autonomous generation and an estimated 278.8 million kWh of unmetered on-site self-consumption. Nuclear output was below the same eight months of 2025, while thermal output was higher. This partial-year mix cannot establish the final annual shares or the cause of every change. [8]
Analysis: fuel-source concentration and reliance on transit are separate from generation diversity inside Armenia. Hydropower, nuclear output and solar production give different operating profiles; transmission reliability, dispatch flexibility and alternative supply arrangements determine how useful that diversity is during an interruption. [58][8][3][5]
Supplier concentration and asset control are related but distinct. The IEA’s 2023 profile describes Gazprom Armenia as the vertically integrated gas operator, wholly owned by Gazprom since January 2014. It identifies Russian supply via Georgia and the separate Iranian connection, with Iranian gas largely linked to electricity exchange. A second pipeline does not therefore represent an immediately interchangeable commercial supply pool: contracts, capacity, balancing and electricity obligations affect its use. The same profile puts gas at 59.6% of total energy supply in 2020 and records gas-fired generation at 44% of electricity in 2021. These historical shares explain why gas risk extends beyond household heating into power costs and industrial competitiveness. Armenia’s fossil-fuel dependence remains structurally different from its electricity-generation diversity. Nuclear and hydro can reduce gas burned for power, but cannot automatically replace imported fuels across transport, heat and industry. [58][83][131]
Armstat’s 2025 electricity total includes autonomous producers and estimated unmetered on-site self-consumption. Physical generation shares differ from value-based industry charts; neither measures installed capacity. [206]