A photovoltaic system, also called a PV system or solar power system, is an electric power system designed to supply usable solar power by means of photovoltaics. It consists of an arrangement of several components, including solar panels to absorb and convert sunlight into electricity, a solar inverter to convert the…

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.

Thomas Edmunds Price (born October 8, 1954) is an American physician and Republican Party politician who served as the U.S. representative for Georgia's 6th congressional district, encompassing the northern suburbs of Atlanta, from 2005 to 2017. While in Congress, Price chaired the House Committee on the Budget,…

The economics of nuclear power concerns the costs, financial risks, and economic factors involved in generating electricity from nuclear reactors, including the capital required to build plants, the operating and fuel costs over their lifetime, and the expenses of decommissioning and managing radioactive waste. It…

A solar inverter or photovoltaic (PV) inverter is a type of power inverter which converts the variable direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network. It is a…

A balcony solar power system (also called a plug-in solar panel, mini solar system, Plug-in PV, PIPV, or balcony power station) is a small photovoltaic system designed to generate electricity for direct use in a home or apartment. Unlike conventional rooftop solar installations, balcony solar systems connect to the…

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…

The 2026 Iran war fuel crisis is a worldwide fuel crisis caused by the war between Iran and the U.S.-Israel coalition. The closure of the Strait of Hormuz, through which over 20% of the world's oil trade passes, and attacks on energy infrastructure in Iran and several Gulf Cooperation Council countries led to a large…

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…

Solar power in Switzerland has demonstrated consistent capacity growth since the early 2010s, influenced by government subsidy mechanisms such as the implementation of the feed-in tariff in 2009 and the enactment of the revised Energy Act in 2018. In 2025, solar power contributes nearly to 8 TWh of generation to the…