The Transcendental Meditation movement (TM) are programs and organizations that promote the Transcendental Meditation technique founded by Maharishi Mahesh Yogi in India in the 1950s. The organization was estimated to have 900,000 participants in 1977, a million by the 1980s, and 5 million in more recent years.

sonnen GmbH (proprietary name and abbreviated form: sonnen) is a company in the energy industry headquartered in Wildpoldsried in the district of Oberallgäu, Germany. It produces home energy storage systems for private households and small businesses.

Climate change mitigation, also called decarbonisation, is an action to limit the greenhouse gases in the atmosphere that cause climate change. Climate change mitigation actions include conserving energy and replacing fossil fuels with clean energy sources.

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…

Engie SA (stylised in all caps as ENGIE) is a French multinational electric utility company, headquartered in La Défense, Courbevoie. Its activities cover electricity generation and distribution, natural gas, nuclear power, renewable energy, district energy, and the petroleum industry.

The electricity sector in New Zealand uses almost entirely renewable energy, such as hydropower, geothermal power and increasingly wind energy. In the fourth quarter of 2025, the country generated 96.4% of its electricity from renewable sources.

A bifacial solar cell (BSC) is a photovoltaic solar cell that can produce electrical energy from both front and rear side. In contrast, monofacial solar cells produce electrical energy only when photons are incident on their front side.

Ottmar Georg Edenhofer (born 8 July 1961) is a German economist who is regarded as one of the world's leading experts on climate change policy, environmental and energy policy, and energy economics. His work has been heavily cited.

Ashden is a London-based charity that works in the field of sustainable energy and development. Its work includes the annual Ashden Awards, advocacy and research in the field of sustainable energy, and mentoring and practical support for award winners.

Field Marshal Horatio Herbert Kitchener, 1st Earl Kitchener (; 24 June 1850 – 5 June 1916) was a British Army officer and colonial administrator. Kitchener came to prominence for his imperial campaigns, his involvement in the Second Boer War, and his central role in the early part of the First World War.