A plug-in hybrid electric vehicle (PHEV) or plug-in hybrid vehicle (PHV) is a type of hybrid electric vehicle equipped with a battery that can be recharged via a power cable to an external electric power source, in addition to charging internally by its on-board internal combustion engine–powered generator. While…

Electric car use by country varies worldwide, as the adoption of plug-in electric vehicles is affected by consumer demand, market prices, availability of charging infrastructure, and government policies, such as purchase incentives and long term regulatory signals (ZEV mandates, CO2 emissions regulations, fuel economy…

Leadership in Energy and Environmental Design (LEED) is a green building certification program used worldwide. Developed by the non-profit U.S. Green Building Council (USGBC), it includes a set of rating systems for the design, construction, operation, and maintenance of green buildings, homes, and neighborhoods,…

A power inverter or power invertor, often simply called an inverter or invertor, is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on the particular device employed.

In air conditioning, an inverter compressor is a compressor that is operated with an inverter. In the hermetic type, it can either be a scroll or reciprocating compressor.

Although Alberta has a presence in many industries such as agriculture, forestry, education, tourism, finance, and manufacturing, the politics and culture of the province have been closely tied to the production of fossil energy since the 1940s. Alberta—with an estimated 1.4 billion cubic metres of unconventional oil…

A zero-carbon city is a goal of city planners that describes a significant reduction in carbon use by a city. The term describes a range of carbon reduction, ranging from a city that generates as much or more carbon-free sustainable energy as it uses, to a city that manages greenhouse gas emissions and reduces its…

The Lawrence Weston Wind Turbine, also known as the Ambition Community Energy Wind Turbine, is a community-owned wind turbine located in Avonmouth, Bristol, England, near the Seabank Power Station. It is situated beside the A403 road and Severn Estuary, just north of the Avonmouth Docks and Chittening industrial…

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 (known as Winter Storm Uri), and 15–20. The storms triggered the worst energy infrastructure failure in Texas state history, leading to…

The history of coal mining in the United States starts with the first commercial use in 1701, within the Manakin-Sabot area of Richmond, Virginia. Coal was the dominant power source in the late 19th century and the early 20th century, and although in rapid decline it remains a significant source of energy in 2025.