How it's made
What every number on this atlas is, how it was produced, how sure we are, and where it comes from.
Rooftop solar inventory
Our model finds rooftop solar arrays on satellite imagery; every array shown has been checked by a reviewer. Mapped so far: Ararat, Aragatsotn, Armavir, Gegharkunik and Shirak (hatched provinces are not reviewed yet).
- Counts are a minimum. The upper value of each range adds the places reviewers flagged as a missed panel. Panels nobody flagged are not counted; a random audit that measures how many the model misses is under way.
- Capacity (kW) is estimated from each array's measured area and corrected with hand counts of the panels on 17 installations: the area method overstates capacity about 2.1× (likely 1.4–3.1×). The range carries that uncertainty.
Licensed plants
The official register of the Public Services Regulatory Commission (renewable plants, as of 1 July 2026): small hydro, solar and wind plants, operating or under construction, with their licence dates. Plants are drawn at the village they are named after (an approximation); plants with company names are counted per province but not drawn. "Under construction" means licensed with the construction period running; some have had their deadlines extended several times.
Solar farms
Ground-mounted plants mapped from imagery and checked by reviewers. A cross-check with Global Renewables Watch (Microsoft, Planet) found a few more farms that are being verified before they are added.
Resource and limit layers
| Solar yield | Global Solar Atlas 2.0 (World Bank, Solargis), long-term average. |
| Wind | Global Wind Atlas 3 (DTU, World Bank), 250 m. Wind class uses the NREL 1–7 scale on 50 m power density, as Armenia's 2003 national wind atlas. Global wind models are less accurate in mountains; a project needs on-site measurement. |
| Heat | Heating degree days (18 °C) and winter temperature from WorldClim 2.1 monthly averages combined with the Global Solar Atlas temperature map; solar water heater output = sunlight × a typical 45 % collector efficiency. Good for comparing places, not for designing a building. |
| Farm suitability | Land passing the usual limits, scored on solar yield, flat ground, grid and road distance and snow days. |
| Land | Protected areas (WDPA / national layers), ESA WorldCover 2021, SRTM terrain, OpenStreetMap roads and high-voltage lines. |
What this atlas is not
A screening tool. It does not replace site surveys, the grid operator's connection study, environmental assessment or land and permit checks. Capacities of individual plants are not shown.