A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions. Fuel cells are different from most batteries in requiring a continuous source of fuel and oxygen (usually from air) to sustain…

Claudia Sheinbaum Pardo (born 24 June 1962) is a Mexican politician, energy and climate change scientist, and academic who has been serving as the 66th president of Mexico since 2024. She is the first woman and the first person with Jewish heritage to hold the office.

Radiant heating and cooling is a category of HVAC technologies that exchange heat by both convection and radiation with the environments they are designed to heat or cool. There are many subcategories of radiant heating and cooling, including: "radiant ceiling panels", "embedded surface systems", "thermally active…

Sustainable living describes a lifestyle that attempts to reduce the use of Earth's natural resources by an individual or society. Its practitioners often attempt to reduce their ecological footprint (including their carbon footprint) by altering their home designs and methods of transportation, energy consumption and…

The FTSE/Athex Large Cap is the stock index of the twenty-five largest companies on the Athens Stock Exchange. As of 26 May 2018 the stocks comprising this index are: Viohalco, Coca-Cola HBC AG, EYDAP, Terna Energy, Lamda Development S.A., Hellenic Petroleum, Gr.

Actis LLP is a global investment firm focused on sustainable infrastructure, in particular the energy, infrastructure, and real estate asset classes. The company is focused on investments in emerging markets in India, Latin America, South East Asia, the Middle East, Central and Eastern Europe, Africa and China.

Grupo Opaia SA is a holding company operating under Angolan law based in Luanda, Angola, running projects in civil construction services, solar energy technology, drinking water systems, hotel service and tourism, agriculture, finance and more. It was founded by the Angolan Agostinho Kapaia, from Huambo, in 2002.

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…

Economy 7 is a differential tariff provided by United Kingdom electricity suppliers that uses base load generation to provide cheap off-peak electricity during the night. Houses using the Economy 7 tariff require a special electricity meter which provides two different readings - one for electricity used during the…

An infrared heater or heat lamp is a heating appliance containing a high-temperature emitter that transfers energy to a cooler object through electromagnetic radiation. Depending on the temperature of the emitter, the wavelength of the peak of the infrared radiation ranges from 750 nm to 1 mm.