During the 2000s, United States housing prices experienced a sharp run up and subsequent collapse affecting over half of the U.S. states. In many regions, a real estate bubble was the impetus for the subprime mortgage crisis.

O.Y. Nofar Energy Ltd., commonly known as Nofar Energy (Hebrew: ע.י. נופר אנרג'י בע"מ), is an Israeli renewable energy company headquartered in Kfar Saba.

Octopus Energy Group Limited (formerly Octopus Energy Limited and Octopus Energy Holdings Limited), known as Octopus Energy, is a British company operating in the fields of energy generation and supply. It was founded in 2015 with the backing of Octopus Group, a British asset management company.

Great British Energy (GB Energy, GBE) is a publicly owned energy investment company in the United Kingdom. It was established by the Great British Energy Act 2025, which received royal assent on 15 May 2025, and is sponsored by the Department for Energy Security and Net Zero.

Energy in Kazakhstan describes energy and electricity production, consumption and import in Kazakhstan and the politics of Kazakhstan related to energy. Kazakhstan, which has oil, gas, coal and uranium reserves, is a net energy exporter and a leading energy producer in the Commonwealth of Independent States (CIS).

Energy in Jordan describes energy and electricity production, consumption and import in Jordan. Jordan is among the highest in the world in dependency on foreign energy sources, with 92.3% of the country's energy supply being imported.

Thermal energy storage (TES) is the storage of thermal energy for later reuse. Employing widely different technologies, it allows thermal energy to be stored for hours, days, or months.

The energy policy of the United States is determined by federal, state, and local entities. Federal Energy policy is principally led by the U.S. Department of Energy.

Saudi Arabia has a high-income developing economy highly reliant on its petroleum sector. Oil and gas account for approximately 22.3% of Saudi GDP and 55% of government revenue, with substantial fluctuations depending on oil prices each year.

The renewable-energy industry is the part of the energy industry focusing on new and appropriate renewable energy technologies. Investors worldwide are increasingly paying greater attention to this emerging industry.