An energy crisis or energy shortage is any significant bottleneck in the supply of energy resources to an economy. In literature, it often refers to one of the energy sources used at a certain time and place, in particular, those that supply national electricity grids or those used as fuel in industrial development. Population growth has led to a surge in the global demand for energy in recent years. In the 2000s, this new demand – together with Middle East tension, the falling value of the US dollar, dwindling oil reserves, concerns over peak oil, and oil price speculation – triggered the 2000s energy crisis, which saw the price of oil reach an all-time high of $147.30 per barrel ($926/m3) in 2008.
A power outage is the loss of the electrical power network supply to an end user.
A rolling blackout, also referred to as rota or rotational load shedding, rota disconnection, feeder rotation, or a rotating outage, is an intentionally engineered electrical power shutdown in which electricity delivery is stopped for non-overlapping periods of time over different parts of the distribution region. Rolling blackouts are a last-resort measure used by an electric utility company to avoid a total blackout of the power system.
The Electric Reliability Council of Texas, Inc. (ERCOT) is an American organization that operates Texas's electrical grid, the Texas Interconnection, which supplies power to more than 25 million Texas customers and represents 90 percent of the state's electric load. ERCOT is the first independent system operator (ISO) in the United States. ERCOT works with the Texas Reliability Entity (TRE), one of six regional entities within the North American Electric Reliability Corporation (NERC) that coordinate to improve reliability of the bulk power grid.
The Texas Interconnection is an alternating current (AC) power grid – a wide area synchronous grid – that covers most of the state of Texas. The grid is managed by the Electric Reliability Council of Texas (ERCOT).
The Northeast blackout of 2003 was a widespread power outage throughout parts of the Northeastern and Midwestern United States, and most parts of the Canadian province of Ontario on Thursday, August 14, 2003, beginning just after 4:10 p.m. EDT.
Energy security is the association between national security and the availability of natural resources for energy consumption. Access to cheaper energy has become essential to the functioning of modern economies. However, the uneven distribution of energy supplies among countries has led to significant vulnerabilities. International energy relations have contributed to the globalization of the world leading to energy security and energy vulnerability at the same time.
The utility electricity sector in Bangladesh has one national grid operated by Power Grid Company of Bangladesh with an installed capacity of 25,700 MW as of June 2022. Bangladesh's energy sector is not up to the mark. However, per capita energy consumption in Bangladesh is considered higher than the production. Electricity was introduced to the country on 7 December 1901.
Energy in Ukraine is mainly from gas and nuclear, followed by oil and coal. Ukraine has a diversified energy mix, and no fuel takes up more than a third of the country’s energy sources. Most gas and oil is imported, but since 2015 energy policy has prioritised diversifying energy supply.
Two severe power outages affected most of northern and eastern India on 30 and 31 July 2012. The 30 July 2012 blackout affected over 400 million people and lasted about 13.5 hrs. During that period, it was the largest power outage in history by number of people affected, beating the January 2001 blackout in Northern India. Similar conditions caused a blackout on the next day, which remained the largest power outage in history as of June 2024. The outage affected more than 620 million people, spread across 22 states in Northern, Eastern, and Northeast India. An estimated 32 gigawatts of generating capacity was taken offline. Of the affected population, 320 million initially had power, while the rest lacked direct access. Electric service was restored in the affected locations between 31 July and 1 August 2012.
Energy is a major area of the economy of California. California is the state with the largest population and the largest economy in the United States. It is second in energy consumption after Texas. As of 2018, per capita consumption was the fourth-lowest in the United States partially because of the mild climate and energy efficiency programs.
The South Australian blackout of 2016 was a widespread power outage in South Australia that occurred as a result of storm damage to electricity transmission infrastructure on 28 September 2016. The cascading failure of the electricity transmission network resulted in almost the entire state losing its electricity supply, affecting 850,000 SA customers. Kangaroo Island did not lose its supply, as the Kangaroo Island power station had been built to supply the island for the contingency of a failure in the power cable under the Backstairs Passage.
On December 23, 2015, the power grid in two western oblasts of Ukraine was hacked, which resulted in power outages for roughly 230,000 consumers in Ukraine for 1-6 hours. The attack took place during the ongoing Russo-Ukrainian War (2014-present) and is attributed to a Russian advanced persistent threat group known as "Sandworm". It is the first publicly acknowledged successful cyberattack on a power grid.
Electricity is an important part of energy in Ukraine. Most electricity generation is nuclear. The bulk of Energoatom output is sold to the government's "guaranteed buyer" to keep prices more stable for domestic customers. Zaporizhzhia is the largest nuclear power plant in Europe. Until the 2010s all of Ukraine's nuclear fuel came from Russia, but now most does not.
In February 2021, the state of Texas suffered a major power crisis, which came about during three severe winter storms sweeping across the United States on February 10–11, 13–17, and 15–20. The storms triggered the worst energy infrastructure failure in Texas state history, leading to shortages of water, food, and heat. More than 4.5 million homes and businesses were left without power, some for several days. At least 246 people were killed directly or indirectly, with some estimates as high as 702 killed as a result of the crisis.
Ukrenergo is a state-owned electricity transmission system operator in Ukraine and the sole operator of the high-voltage lines which transmit electricity in Ukraine. It is a member of the European Network of Transmission System Operators for Electricity.
Russia launched waves of missile and drone strikes against energy in Ukraine as part of its invasion. From 2022 the strikes targeted civilian areas beyond the battlefield, particularly critical power infrastructure, which is considered a war crime. By mid-2024 the country only had a third of pre-war electricity generating capacity, and some gas distribution and district heating had been hit.
Starting in late 2022, Moldova suffered an energy crisis, the worst since its independence. Hugely influenced by the Russian invasion of Ukraine, caused when Russia's Gazprom reduced supplies.
In the morning hours of 22 March 2024, Russia carried out one of the largest missile and drone attacks against Ukraine in the series of similar Russian attacks during the ongoing Russo-Ukrainian War with 88 missiles and 63 drones. Kharkiv, Zaporizhzhia, Kryvyi Rih, Khmelnytskyi, Poltava Oblast, Vinnytsia Oblast, Lviv Oblast, Ivano-Frankivsk Oblast, Mykolaiv Oblast, Odesa Oblast, Sumy Oblast and other parts of the country were subjected to rocket fire by the Russian army. The Dnieper Hydroelectric Station was put out of action.
On the morning of 26 August 2024, Russia carried out its largest series of missile and drone attacks against Ukraine during the Russian invasion of Ukraine, targeting multiple large and important cities including Kyiv, Kharkiv, Dnipro, Odesa, Kremenchuk, Zaporizhzhia, Vinnytsia, Kropyvnytskyi, Khmelnytskyi, Stryi, and Kryvyi Rih. The attacks resumed on the night of 26 August and into the morning of 27 August.
