Bulgaria vs Iran: Annual change in primary energy from nuclear

Bulgaria

-1.34 terawatt-hours

in 2025

Iran

-5 terawatt-hours

in 2025

Bulgaria rank

209th

Iran rank

211th

Annual change in primary energy from nuclear over time

Bulgaria currently reports -1.34 terawatt-hours against -5 terawatt-hours in Iran, a difference of 3.65 terawatt-hours.

The two have swapped places 23 times across 60 shared years of data; in 1966 it was Iran ahead.

Bulgaria ranks 209th and Iran ranks 211th of 218 countries.

Indicator: Annual change in primary energy from nuclear
Unit: terawatt-hours
Source: Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 221 places, 10,533 data points, 1966–2025
Last refreshed: 07 August 2026

Change in total energy supply relative to the previous year, measured in terawatt-hours.