Puerto Rico
PRIOil overtook gas on Puerto Rico's grid in 2020.
Today oil supplies 48% and gas 30%.
What this grid depends on
Three measures that say more about a country than how much power it makes. Open “what this means” on any of them if the term is new.
Among the most carbon-heavy electricity anywhere.
What this means
How much planet-warming gas is released to make one unit of electricity. Two countries can generate exactly the same amount and one of them be ten times dirtier doing it. Lower is better.
Puerto Rico generates almost exactly what it uses, with next to nothing crossing its borders.
What this means
Electricity can be sold across a border like anything else, through high-voltage lines connecting one country's grid to the next. Buying it in means leaning on a neighbour to keep the lights on. Selling it means generating more than the country needs.
Also true of Puerto Rico
Puerto Rico's electricity is dirtier than the world average.
655 grams of CO2e a kilowatt-hour against a world figure of 458 — 43% above.
Puerto Rico is third in Latin America and the Caribbean for coal.
Coal supplies 17% of its electricity.
Gas overtook coal on Puerto Rico's grid in 2012.
Today gas supplies 30% and coal 17%.
Puerto Rico’s neighbours
Dominican RepublicCoal overtook gas on Dominican Republic's grid in 2022.
HaitiHaiti has about as many people as the United Arab Emirates, and 220 times less electricity to share between them.
DominicaDominica runs almost entirely on oil.
ArubaAruba is among the world's biggest wind and solar producers and still burns fossil fuels for most of its power.
Saint LuciaSaint Lucia runs almost entirely on oil.
Figures are for 2025, the most recent year reported for Puerto Rico. Generation shares are a percentage of electricity generated, not of energy used. How this is calculated.