An energy crisis from 2021 to 2023 began in the aftermath of the COVID-19 pandemic, resulting in shortages and increased prices in oil, gas and electricity markets. The crisis was particularly acute in Europe, and especially following the Russian invasion of Ukraine, the energy crisis became popularly associated with…

A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers to display information. Liquid crystals do not emit light directly but instead use a backlight or reflector to produce images in…

A power purchase agreement (PPA), or electricity power agreement, is a long-term contract between an electricity generator and a customer, usually a utility, government or company. PPAs may last anywhere between 5 and 20 years, during which time the power purchaser buys energy at a pre-negotiated price.

Electricity pricing (also referred to as electricity tariffs or the price of electricity) can vary widely by country or by locality within a country. Electricity prices are dependent on many factors, such as the price of power generation, government taxes or subsidies, CO2 taxes, local weather patterns, transmission…

Carbon pricing (or CO2 pricing) is a method for governments to mitigate climate change, in which a monetary cost is applied to greenhouse gas emissions. This is done to encourage polluters to reduce fossil fuel combustion, the main driver of climate change.

A multiunit auction is an auction in which several homogeneous items are sold. The units can be sold each at the same price (a uniform price auction) or at different prices (a discriminatory price auction).

World food prices increased dramatically in 2007 and the first and second quarter of 2008, creating a global crisis and causing political and economic instability and social unrest in both poor and developed nations. Although the media spotlight focused on the riots that ensued in the face of high prices, the ongoing…

Carbon pricing in Canada is implemented either as a regulatory fee or as a tax levied on the carbon content of fuels at the provincial, territorial, or federal level. Provinces and territories of Canada are allowed to create their own systems of carbon pricing as long as they comply with the minimum requirements set…

During 2022 and 2023 there were food crises in several regions as indicated by rising food prices. In 2022, the world experienced significant food price inflation along with major food shortages in several regions.

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