Electric energy consumption

Electric energy consumption is the form of energy consumption that uses electric energy.

Overview
Consumption of electric energy is measured by W·h (Watt x Hour).
 * 1 W·h = 3600 joule = 859.8 calorie

energy in one year. Electric/Electronics devices consume electric energy to generate desired output(i.e. light, heat, kinetic etc.), while its operation some part of energy are consumed in unintended output. see Electrical efficiency

In 2008, world total of electricity production and consumption was 20,279TWh. This number corresponds to a "consumed" power of around 2.3 TW on average. The total energy needed for producing this power is roughly a factor 2 to 3 higher because the efficiency of power plants is roughly 30-50%, see Electricity generation. The generated power is thus in the order of 5 TW. This is approximately a third of the total energy consumption of 15 TW, see World energy consumption.

In 2005, the primary energy used to generate electricity was 41.60 Quadrillion BTU (Coal 21.01 quads, Natural Gas 6.69 quads, Petroleum 1.32 quads, Nuclear electric power 8.13 quads, Renewable energy 4.23 quads respectively). The gross generation of electricity in that year was 14.50 Quads; the difference, 27.10 Quads, was conversion losses. Among all electricity, 4.84 Quads was used in residential area, 4.32 Quads used in commercial, 3.47 Quads used in industrial and 0.03 Quads used in transportation.

16816TWh(83%) of electric energy was consumed by final users. The difference of 3464TWh(17%)was consumed in the process of generating power and consumed as transmission loss and all most consumed at misuse.

World Electricity Consumption Highlights in 2009
At the world level, energy consumption was cut down by 1.5% during 2009, for the first time since World War II. Except in Asia and Middle East, consumptions were reduced in all the world regions. In OECD countries, accounting for 53% of the total, electricity demand scaled down by more than 4.5% in both Europe and North America while it shrank by above 7% in Japan. Electricity demand also dropped by more than 4.5% in CIS countries, driven by a large cut in Russian consumption. Conversely, in China and India (22% of the world's consumption), electricity consumption continued to rise at a strong pace (+6-7%) to meet energy needs related to high economic growth. In Middle East, growth rate was softened but remained high, just below 4%.

Electricity Consumption and GDP
Listed countries are top 20 populous countries and/or top 20 GDP (PPP) countries and Saudi Arabia as of CIA World Factbook 2009. 30 countries (exclude EU/IEA) in this table represent 77% of world population, 84% of world GDP, 83% of world electricity consumption. Productivity per Electricity consumption (concept similar to Energy intensity) can be measured by dividing GDP amount by the electricity consumed. World average was $3.5 production/kWh. Electricity consumption include Final consumption, in process consumption, and losses.

Population and GDP data are from CIA World Factbook 2009 Electricity data are from IEA/OECD 2008 (retrieved on Apr-2011) rank* of Population and GDP are World ranking rank** of Electricity consumption are ranking within this list GDP PP/kWh Amount of GDP (PPP) (USD) produced per every 1kWh. EU* are EU states which are member of IEA. include; Austria, Belgium, Czech, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovak, Spain, Sweden, Switzerland, Turkey, UK

Electricity Final Consumption by categories
There are in-process consumption of Electricity which is about 17% of total production. In 2008, total electricity produced was 20,261TWh, 3,464TWh was consumed during process and 16,816TWh went to final consumption. Data are from IEA/OECD (2008)

In the consumption rate in Industry, China is highest with 67.8%, South Korea is 51.0%(7th), Germany 46.1%(11th), Japan 31.5%(26th), USA 24.0%(28th) In the Commercial and Public Service, Japan is highest with 36.4%, USA 35.6%(3rd), China 5.4%(29th) For Domestic usage, Saudi Arabia is highest with 56.9%, USA 36.2%(8th), Japan 29.8%(16th), China 15.5%(29th), Korea 13.8%(30th)

definition  Industry; Iron and steel, chemical and petrochemical, non-ferrous metals, non-metallic minerals, transport equipment, machinery, mining, Food and tobacco, Paper, pulp and print, wood and wood product, construction, textile and leather, non-specified. Transport; Domestic aviation, Land transportation, Rail, Pipeline transport, domestic navigation, non-specified. note international marine and aviation bunkers are not included. Fishery; some country include fishing with agriculture/forestry.
 * Listed countries are top 20 by population or top 20 by GDP (PPP) and Saudi Arabia.

Electric energy consumption of OECD member countries
Electric energy consumption per inhabitant by primary energy source in some countries and areas in 2008 is in the table.
 * 1 MW·h/yr = 114 Watt

For the OECD with 8 991 kWh/yr/person: 1.026 Watt/person.