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Current Energy Landscape

Primary Energy Supply by Resource

*Includes biofuels

This figure does not include difficult-to-measure traditional biomass (~6%).
Source: Energy Institute. Statistical Review of World Energy. (2026)

*Includes biofuels

Percentages do not total 100 due to rounding of individual categories.
Source: ElA Monthly Energy Review. Energy Overview Table 1.3. (March 2026)

Electricity Generation by Resource

*Includes biofuels

**Includes uncategorized generation, statistical differences and sources not specified elsewhere e.g. pumped hydro, non renewable waste and heat from chemical sources.
Source: Energy Institute. Statistical Review of World Energy. (2025)

*Includes wood and waste

Percentages do not add to 100 due to rounding of individual categories.
Source: ElA Monthly Energy Review. Electricity Table 7.2a. (March 2026)

Energy Use by Sector

Industrial includes manufacturing, construction, mining, agriculture & forestry, fishing, and non-energy use.
Source: International Energy Agency. World Energy Outlook. 2025.

Industrial includes manufacturing, construction, agriculture, forestry, & fishing, natural gas distribution, and water supply & irrigation systems.
Source: EIA Monthly Energy Review. Energy Consumption by Sector Tables 2.1a & 2.1b. 2026.

Note that the data for the world is total final energy consumption by sector, and the data for the U.S. is total energy supply by sector. Total final energy consumption is only the energy to meet demand and does not include the upstream losses. Total energy supply is primary energy consumption including losses in the energy system as well as energy to meet demand. Unfortunately, total energy supply by sector isn't tracked for the world.

Energy and Climate Change

Source: Climate Watch. Historical GHG Emissions. 2026.

Image of the atmosphere bathtub showing that we are currently very close to 1.5°C and that we need to rebalance the natural carbon cycle by turning off human GHG emissions and removing gigatons of CO2 from the atmosphere.

Sources: The Intergovernmental Panel on Climate Change (IPCC). Policymaker Summary of Working Group I (Scientific Assessment of Climate Change) Executive Summary; International Energy Agency (IEA). CCUS in Clean Energy Transitions. September 2020. 

Energy Systems

An energy system converts primary energy resources (like fossil fuels or wind) into energy currencies (like electricity) to provide services humans want and need. 

Diagram of an energy system showing how energy resources relate to energy currencies, energy storage, and energy services

World Energy System Overview, 2023

The world energy system is only 40% efficient. 60% is lost (wasted energy).

Sankey diagram showing how much energy goes from sources to uses and how much is wasted.
Source: Ember. See the interactive version (click on Improvement 1 at the top of the page to see this version).

U.S. Energy System Overview, 2024

The US Energy System is only 32% efficient. Two-thirds is lost (rejected energy). See how it has changed over time in this visualization.

Source: LLNL July, 2026; DOE/BIA SEDS (2026). Distributed electricity represents only retail electricity sales and does not include self-generation. EIA reports consumption of noncombustible renewable energy for electricity generation (i.e., hydro, wind, geothermal and solar) using the captured energy approach, which applies a constant conversion factor of 3,412 British thermal units per kilowatt-hour (Btu/kWh), that is, the heat content of electricity. The efficiency of electricity production is calculated as the total retail electricity delivered divided by the primary input into electricity generation. End use efficiency is estimated as 65% for the residential sector, 65% for the commercial sector, 49% for the industrial sector, and 21% for the transportation sector. Totals may not equal sum of components due to independent rounding.

View larger | Download tabular data Estimated U.S. Energy Consumption 2024 (XLSX, 11KB)