Energy supply is the delivery of fuels or transformed fuels to point of consumption. It potentially encompasses the extraction, transmission, generation, distribution and storage of fuels. It is also sometimes called energy flow.

This supply of energy can be disrupted by several factors, including imposition of higher energy prices due to action by OPEC or other cartel, war, political disputes, economic disputes, or physical damage to the energy infrastructure due to terrorism. The security of the energy supply is a major concern of national security and energy law.

Some sources refer to "energy supply" when actually referring to the oil reserves or other potential sources of energy.

New York Statutes includes a statutory code called "Energy Law". Article 21 of this code is called "Energy Supply and Production", but rather than a comprehensive code, only consists of one section dealing with renewable energy.

Richard Douthwaite (6 August 1942 – 14 November 2011) was a British economist, ecologist, campaigner and writer living in Ireland. He died of cancer at his home near Westport, Co. Mayo.

Douthwaite studied engineering at Leeds and later economics at Essex universities. He built concrete boats at a cooperative in Port Antonio, Jamaica in the early 1970s and was then government statistician in the British Caribbean colony of Montserrat for two years before moving to Ireland (near Westport) to write and campaign about climate and energy issues and local economic development. He also set up and ran a leather crafts factory.

He was co-founder of Feasta (the Foundation for the Economics of Sustainability) an Irish based economic, social and environmental think tank. He had also been a council member of Comhar, the Irish government's national sustainability council and a Fellow of the Post Carbon Institute.

In the 1994 European Parliament election he stood unsuccessfully as the Green Party candidate for the Connacht–Ulster constituency.

Daniel Howard Yergin (born February 6, 1947) is a Pulitzer Prize winning American author, speaker, and economic researcher. Yergin is the co-founder and chairman of Cambridge Energy Research Associates, an energy research consultancy that is now part of IHS Inc.. He is best known as author of The Prize: The Epic Quest for Oil, Money, and Power; and The Quest: Energy, Security, and the Remaking of the Modern World.

Born in Los Angeles, California to a Chicago Tribune reporter father and a mother who was a sculptor and painter, Yergin attended Beverly Hills High School. He received his B.A. from Yale University in 1968, where he served on the board of the Yale Daily News, and was a founder of The New Journal. He earned his Ph.D. in International Relations (1974) from Cambridge University where he was a Marshall Scholar. He also holds honorary doctoral degrees from Colorado School of Mines, University of Houston, and the University of Missouri.

From 1977 through 1980, he was a Lecturer at the Harvard Business School and, until 1983, a Lecturer at Harvard’s Kennedy School of Government. He founded Cambridge Energy Research Associates(CERA) in 1982 with the purchase of a $7.00 file cabinet from Goodwill. In 2004, CERA was acquired by the information company IHS Inc. In addition to being chairman of IHS CERA, he is also executive vice president of IHS.

Christopher Murray Paul-Huhne, commonly known as Chris Huhne (English spelling pronunciation /ˈhjuːn/, born 2 July 1954) is a British politician and former cabinet minister, who is the Liberal Democrat Member of Parliament for the Eastleigh constituency in Hampshire. He was appointed Secretary of State for Energy and Climate Change in the coalition government following the 2010 general election. In February 2012 he became the first Cabinet minister in history to be forced from office by a criminal prosecution when he was charged with perverting the course of justice over a 2003 speeding case. Huhne has twice stood unsuccessfully for election as leader of the Liberal Democrats. In the 2006 election he came second to Sir Menzies Campbell and in the 2007 election he narrowly lost to Nick Clegg.

Huhne was born in an affluent section of West London to businessman Peter Paul-Huhne and actress Ann Murray, who had been the voice of the speaking clock. He was educated at the fee-paying Westminster School. His family name was Paul-Huhne and he was known all through his school years as Christopher Paul-Huhne. At Oxford, he simplified his name to "Chris Huhne".