Iran vs Singapore: Annual change in primary energy from coal
Iran
0.3772 terawatt-hours
in 2025
Singapore
0.4402 terawatt-hours
in 2025
Iran rank
22nd
Singapore rank
21st
Annual change in primary energy from coal over time
- Iran
- Singapore
How they compare
Singapore currently reports 0.4402 terawatt-hours against 0.3772 terawatt-hours in Iran, a difference of 0.063 terawatt-hours.
That makes Singapore's figure about 1.2 times Iran's.
The two have swapped places 33 times across 60 shared years of data; in 1966 it was Iran ahead.
Iran ranks 22nd and Singapore ranks 21st of 79 countries.
Across the 7 decades both report, Iran averaged higher in 5 and Singapore in 2.
Head to head by decade
| Decade | Iran | Singapore | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0.2908 terawatt-hours | -0.0029 terawatt-hours | 0.2937 terawatt-hours | Iran |
| 1970s | 0.9593 terawatt-hours | -0.0027 terawatt-hours | 0.962 terawatt-hours | Iran |
| 1980s | -0.4951 terawatt-hours | 0.0136 terawatt-hours | 0.5087 terawatt-hours | Singapore |
| 1990s | 0.6006 terawatt-hours | -0.0144 terawatt-hours | 0.615 terawatt-hours | Iran |
| 2000s | -0.501 terawatt-hours | 0.0047 terawatt-hours | 0.5056 terawatt-hours | Singapore |
| 2010s | 0.9678 terawatt-hours | 0.5279 terawatt-hours | 0.4399 terawatt-hours | Iran |
| 2020s | -0.0176 terawatt-hours | -0.229 terawatt-hours | 0.2114 terawatt-hours | Iran |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change in primary energy from coal, Iran or Singapore?
- Singapore, at 0.4402 terawatt-hours against 0.3772 terawatt-hours in Iran as of 2025.
- What is the difference in annual change in primary energy from coal between Iran and Singapore?
- 0.063 terawatt-hours, with Singapore ahead.
- How many years of comparable data are there for Iran and Singapore?
- 60 years are reported by both, from 1966 to 2025.
- How do Iran and Singapore rank globally for annual change in primary energy from coal?
- Iran ranks 22nd and Singapore ranks 21st of 79 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) β with major processing by Our World in Data, published as Annual change in primary energy from coal. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.