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Some countries have more than one voltage available. For example, in North America, a unique split-phase system is used to supply to most premises that works by center tapping a 240 volt transformer. This system is able to concurrently provide 240 volts and 120 volts.
This list of countries by electrification rate sorts countries by the share of their inhabitants with access to electricity. Access to electricity is considered one of the prerequisites for a modern life. In 2021, 91.4% of the world population had access to electricity.
Usually the voltage of 230 V ±3% is maintained. Some areas of the UK still have 250 volts for legacy reasons [citation needed], but these also fall within the 10% tolerance band of 230 volts. In practice, this allowed countries to have supplied the same voltage (220 or 240 V), at least until existing supply transformers are replaced.
This map reflects the nominal voltage of residential buildings of most countries. In the USA and Canada, there are 2 nominal voltages: 120V and 240V concurrently. This is not a 3 phase system and 240V is not a phase-phase voltage. This system is unique and is only used in certain parts of the world. 230/380V in Europe does not use a similar system.
This is a list of electric generation, consumption, exports and imports by country. Data are for the year 2021 and are from the EIA. [1] Figures are in terawatt-hours (TWh).
Most of the Americas use 60 Hz AC, the 120/240 volt split-phase system domestically and three phase for larger installations. North American transformers usually power homes at 240 volts, similar to Europe's 230 volts. It is the split-phase that allows use of 120 volts in the home. Japan's utility frequencies are 50 Hz and 60 Hz.
Inflation picked up for a fourth straight month in January amid another rise in in food and energy costs, possibly setting the stage for a year of halting progress in the battle to slow consumer ...
This is a list of countries and dependencies by annual electricity production. China is the world's largest electricity producing country, followed by the United States and India. Data are for the year 2023 and are sourced from Ember unless otherwise specified. [1] Links for each location go to the relevant electricity market page, when available.