Cook Islands Electricity Mix
The Cook Islands generated 50.0% of its electricity from renewable sources in 2024, above the world average of 33.8%. Each kilowatt-hour produced emitted about 250 grams of CO₂.
Data year 2024 · Source: Ember and Energy Institute via Our World in Data
How much electricity in the Cook Islands comes from renewables?
Renewable sources produced 50.0% of the electricity generated in the Cook Islands in 2024. The world average was 33.8% in 2025. That is up from 0% in 2000. That ranks the Cook Islands 69th of 210 countries and territories by renewable share.
Electricity mix by source
Oil is the largest source of electricity in the Cook Islands, at 50.0% of generation, followed by solar at 50.0%. Fossil fuels together supplied 50.0%.
Carbon intensity of electricity
Generating one kilowatt-hour of electricity in the Cook Islands emitted about 250 grams of CO₂ in 2024, 45% below the world average of 458 g. At that rate, a business using 10,000 kWh a year would be responsible for roughly 2,500 kg of CO₂ from electricity.
This is an estimate based on the generation mix. For a formal carbon report, use the grid factor published by the national energy or environment agency. Our guide to emission factors explains the difference.
How the Cook Islands compares
Countries closest to the Cook Islands when ranked by renewable share of electricity. See the full ranking, or the CO₂ emissions of the Cook Islands.
| # | Country | Renewables | Low-carbon | g CO₂/kWh |
|---|---|---|---|---|
| 67 | United Kingdom | 52.0% | 64.4% | 217 |
| 68 | Netherlands | 51.2% | 54.2% | 254 |
| 69 | Cook Islands | 50.0% | 50.0% | 250 |
| 70 | Greece | 49.7% | 49.7% | 315 |
| 71 | Rwanda | 49.6% | 49.6% | 354 |
Frequently asked questions
What share of electricity in the Cook Islands is renewable?
50.0% in 2024. That is up from 0% in 2000. Counting nuclear as well, 50.0% of electricity came from low-carbon sources.
What is the main source of electricity in the Cook Islands?
Oil is the largest source of electricity in the Cook Islands, at 50.0% of generation, followed by solar at 50.0%.
How clean is electricity in the Cook Islands?
Generating one kilowatt-hour emitted about 250 grams of CO₂ in 2024, 45% below the world average of 458 g.
Is renewable electricity growing in the Cook Islands?
The renewable share has risen by 50.0 percentage points, from 0% in 2000 to 50.0% in 2024.
About the data. Shares are percentages of the electricity generated inside the country in a year. Renewables are hydro, wind, solar, bioenergy and other renewable sources. Low-carbon adds nuclear. The latest year differs between countries and is shown on each page. Carbon intensity is an estimate of the CO₂ emitted per kilowatt-hour generated, including emissions over the life of each power source.
Source: Ember and the Energy Institute Statistical Review of World Energy, processed by Our World in Data and used under the CC BY 4.0 licence.
Turn your electricity use into emissions. Enter your monthly kWh and three other figures to get your business footprint.
Open the calculator