Global GridThe Cook Islands' energy mix and electricity
🇨🇰 In 2024, the Cook Islands generated 0.04 TWh of electricity. The largest source was oil and other fossil fuels at 50%, followed by solar (50%). In total, 50% came from low-carbon sources (nuclear and renewables) and 50% from fossil fuels.
On average, each kilowatt hour produced about 250 grams of carbon dioxide (COâ‚‚), below the world average of 458 grams in 2025.
Electricity demand was 0.04 TWh. Its electricity imports and exports were roughly in balance.
Since 2000, electricity generation has grown by 33%, from 0.03 TWh. The low-carbon share went from 0% to 50%. The biggest rise was in solar, from 0% to 50% of generation. The biggest fall was in oil and other fossil fuels, from 100% to 50%. Carbon intensity fell from 667 to 250 grams per kWh.
Live, hour-by-hour figures for the Cook Islands are not connected yet. The dashboard shows its yearly figures, energy mix since 2000 and interconnector trade.
Energy mix in 2024
- Oil and other fossil fuels 50%
- Solar 50%
| Source | Share | Generated |
|---|---|---|
| Oil and other fossil fuels | 50% | 0.02 TWh |
| Solar | 50% | 0.02 TWh |
Energy security score
Moderate. It is not ranked because its power system is very small. The score shows how well a country could keep electricity affordable and on if fuel supplies were disrupted. It is based on 4 of the 5 measures.
| Measure | Score |
|---|---|
| Produces its own energy No reliable figure exists for the Cook Islands, so this measure is left out and the other four count for more. | n/a |
| Variety of power sources How evenly generation is spread across nine sources. The largest, oil and other fossil fuels, made 50%. | 56 |
| Little reliance on imported power The Cook Islands exported more electricity than it imported, so it scores full marks. | 100 |
| Low-carbon power Nuclear and renewables made 50% of generation. | 50 |
| Low gas and oil use Gas and oil made 50% of generation; the score is 100 minus that share. | 50 |
The five measures are weighted 30%, 20%, 20%, 15% and 15%. How the score works.
How it has changed
| Year | Generated | Low-carbon | Fossil | COâ‚‚ g/kWh |
|---|---|---|---|---|
| 2000 | 0.03 TWh | 0% | 100% | 667 |
| 2005 | 0.03 TWh | 0% | 100% | 667 |
| 2010 | 0.03 TWh | 0% | 100% | 667 |
| 2015 | 0.03 TWh | 0% | 100% | 667 |
| 2020 | 0.04 TWh | 25% | 75% | 500 |
| 2023 | 0.04 TWh | 50% | 50% | 250 |
| 2024 | 0.04 TWh | 50% | 50% | 250 |
Questions about the Cook Islands' energy
What is the Cook Islands' energy mix?
In 2024, the Cook Islands' electricity came from oil and other fossil fuels 50% and solar 50%.
How much of the Cook Islands' electricity is renewable?
50% of its electricity came from renewables in 2024 (solar 50%).
What is the Cook Islands' main source of electricity?
Oil and other fossil fuels, which made 50% of its electricity in 2024.
How clean is the Cook Islands' electricity?
About 250 grams of COâ‚‚ for each kilowatt hour in 2024, below the world average of 458 grams.
Does the Cook Islands import electricity?
Its imports and exports were roughly in balance in 2024.
How secure is the Cook Islands' energy supply?
Global Grid's energy security score for the Cook Islands is 66 out of 100 (moderate). It looks at how much of its own energy it produces, how varied its power sources are, its reliance on imported power and its use of low-carbon power, gas and oil.
Other countries in Oceania
- 🇦🇺 Australia
- 🇳🇿 New Zealand
- 🇵🇬 Papua New Guinea
- 🇳🇨 New Caledonia
- 🇬🇺 Guam
- 🇫🇯 Fiji
- 🇵🇫 French Polynesia
- 🇦🇸 American Samoa
Sources: Ember yearly electricity data (CC BY 4.0), figures up to 2024. Ember's latest-year figures are first estimates and may be revised. TWh: terawatt hours (one billion kWh).