Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation. A long conductor used to facilitate such movement is called a transmission line.

PJSC Gazprom (Russian: ПАО «Газпром», IPA: [ɡɐsˈprom]) is a Russian state-owned multinational energy corporation headquartered in the Lakhta Center in Saint Petersburg. The Gazprom name is a contraction of the Russian words gazovaya promyshlennost (газовая промышленность, gas industry).

Enel North America is an American company headquartered in Andover, MA, United States. One of the renewable energy operators in North America, it was formed as a subsidiary of the global utility Enel S.p.A. in 2000.

Altenergy Power System better known as APsystems (formerly APS) is a global technology company that operates in the renewable energy space. APsystems is a provider of multi-platform module-level power electronics (MLPE) solutions for the solar photovoltaic (PV) industry.

A heating system is a mechanism designed to maintain a desired temperature in a space by adding thermal energy. It is a fundamental component of heating, ventilation, and air conditioning (HVAC) systems, providing warmth to residential, commercial, and industrial buildings.

Vitol (pronounced Vee-Tol) is a Swiss-based Dutch multinational energy and commodity trading company that was founded in Rotterdam in 1966 by Henk Viëtor. Vitol has over 40 offices worldwide, with its largest operations in Geneva, Houston, London, and Singapore.

The economy of Papua New Guinea (PNG) is largely underdeveloped with the vast majority of the population living below the poverty line. It is dominated by the agricultural, forestry, and fishing sector and the minerals and energy extraction sector.

While being a major oil producing country, the United Arab Emirates (UAE) has taken steps to introduce solar power on a large scale. However, solar power still accounts for a small share of energy production in the country.

Heat recovery ventilation (HRV), also known as mechanical ventilation heat recovery (MVHR) is a ventilation system that recovers energy by operating between two air sources at different temperatures. It is used to reduce the heating and cooling demands of buildings.

This is a list of notable photovoltaics (PV) companies. Grid-connected solar photovoltaics (PV) is the fastest growing energy technology in the world, growing from a cumulative installed capacity of 7.7 GW in 2007, to 320 GW in 2016.