Installed solar energy capacity in Guam
Guam: Installed solar energy capacity was 0.1048 gigawatts in 2025. ◆ Volatile
Installed solar energy capacity in Guam, 2009–2025
Source: IRENA (2026) – processed by Our World in Data. Measured in gigawatts.
Analysis
Guam recorded 0.1048 gigawatts for installed solar energy capacity in 2025. That is the highest value across all 17 years on record.
The figure is up 228.0% over ten years.
Over the whole period, installed solar energy capacity in Guam peaked at 0.1048 gigawatts in 2023 and was at its lowest, 0 gigawatts, in 2009.
That places Guam 125th out of 218 countries with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Installed solar energy capacity in Guam, year by year
| Year | gigawatts | Change |
|---|---|---|
| 2009 | 0 gigawatts | — |
| 2010 | 0.0001 gigawatts | +100.0% |
| 2011 | 0.0001 gigawatts | +50.0% |
| 2012 | 0.0003 gigawatts | +133.3% |
| 2013 | 0.0008 gigawatts | +157.1% |
| 2014 | 0.0014 gigawatts | +77.8% |
| 2015 | 0.0319 gigawatts | +2118.7% |
| 2016 | 0.0347 gigawatts | +8.5% |
| 2017 | 0.0363 gigawatts | +4.8% |
| 2018 | 0.0381 gigawatts | +4.9% |
| 2019 | 0.0397 gigawatts | +4.3% |
| 2020 | 0.0414 gigawatts | +4.2% |
| 2021 | 0.043 gigawatts | +4.0% |
| 2022 | 0.1047 gigawatts | +143.3% |
| 2023 | 0.1048 gigawatts | +0.1% |
| 2024 | 0.1048 gigawatts | +0.0% |
| 2025 | 0.1048 gigawatts | +0.0% |
Guam compared with similar countries
- Guam's 0.1048 gigawatts is below the median for high income countries, which is 1.01 gigawatts, 10% of the median. (76 countries reporting)
- Guam's 0.1048 gigawatts is below the median for East Asia & Pacific, which is 0.1563 gigawatts, 67% of the median. (35 countries reporting)
Biggest year-on-year movements
Years where Installed solar energy capacity in Guam changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2015 | +2118.7% | 0.0014 gigawatts | 0.0319 gigawatts |
| 2013 | +157.1% | 0.0003 gigawatts | 0.0008 gigawatts |
| 2022 | +143.3% | 0.043 gigawatts | 0.1047 gigawatts |
| 2012 | +133.3% | 0.0001 gigawatts | 0.0003 gigawatts |
| 2010 | +100.0% | 0 gigawatts | 0.0001 gigawatts |
| 2014 | +77.8% | 0.0008 gigawatts | 0.0014 gigawatts |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 0 gigawatts | 0 gigawatts | 0 gigawatts | 1 |
| 2010s | 0.0183 gigawatts | 0.0001 gigawatts | 0.0397 gigawatts | 10 |
| 2020s | 0.0839 gigawatts | 0.0414 gigawatts | 0.1048 gigawatts | 6 |
Countries ranked near Guam
More energy & mining data for Guam
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2022)
- Primary energy use, annual growth rate 0.356 % change on previous year (2024)
- Coal consumption, per capita 0 terawatt-hours per person (2024)
- Coal consumption, per unit of GDP 0 terawatt-hours per US$ of GDP (2022)
- Primary energy use, per unit of GDP 0 terawatt-hours per US$ of GDP (2022)
- Primary energy use, per capita 0 terawatt-hours per person (2024)
- Coal production, per capita 0 terawatt-hours per person (2024)
- Coal production, per unit of GDP 0 terawatt-hours per US$ of GDP (2022)
- Fossil fuel consumption by fuel, per capita 0 terawatt-hours per person (2024)
- Gas production 0 terawatt-hours (2024)
Frequently asked questions
- What is installed solar energy capacity in Guam?
- Installed solar energy capacity in Guam was 0.1048 gigawatts in 2025, according to IRENA (2026) – processed by Our World in Data.
- What is the highest installed solar energy capacity recorded in Guam?
- The highest recorded value was 0.1048 gigawatts in 2023.
- What is the lowest installed solar energy capacity recorded in Guam?
- The lowest recorded value was 0 gigawatts in 2009.
- How does Guam rank for installed solar energy capacity?
- Guam ranks 125th out of 218 countries with data for 2025.
- Is installed solar energy capacity rising or falling in Guam?
- Over the last ten years it is up 228.0%. The long-run trend across the full record is volatile.
- Where does this Guam data come from?
- The figures come from IRENA (2026) – processed by Our World in Data, published as part of Installed solar energy capacity. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 17 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Total solar (on- and off-grid) electricity installed capacity, measured in gigawatts. This includes solar photovoltaic and concentrated solar power.