Generic brand
Generic brands of consumer products (often supermarket goods) are distinguished by the absence of a brand name, instead identified solely by product characteristics and identified by plain, usually black-and-white packaging. Generally they imitate more expensive branded products, competing on price.
Energy engineering
Energy engineering is a multidisciplinary field of engineering that focuses on optimizing energy systems, developing renewable energy technologies, and improving energy efficiency to meet the world's growing demand for energy in a sustainable manner. It encompasses areas such as energy harvesting and storage, energy…
Energy transition
An energy transition (or energy system transformation) is a major structural change to energy supply and consumption in an energy system. Currently, a transition to sustainable energy is underway to limit climate change.
NRG Energy
NRG Energy, Inc. is an American energy company, headquartered in Houston, Texas.
Tesla Energy
Tesla Energy Operations, Inc. is the sustainable energy division of Tesla, Inc.
Electricity sector of the United States
The United States has the second largest electricity sector in the world, with 4,430 Terawatt-hours of generation in 2025. In 2024 the industry earned $514b in revenue (1.8% of GDP) at an average price of $0.129/kWh.
Subsidy
A subsidy, subvention or government incentive is a type of government expenditure which redistributes from tax payers to individuals, households, or businesses. Subsidies take various forms, such as direct government expenditures, tax incentives, soft loans, price support, and government provision of goods and…
Energy return on investment
In energy economics and ecological energetics, energy return on investment (EROI), also sometimes called energy returned on energy invested (ERoEI), is the ratio of the amount of usable energy (the exergy) delivered from a particular energy resource to the amount of exergy used to obtain that energy…
Energy storage
Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery.
Renewable energy in developing countries
Renewable energy in developing countries is an increasingly used alternative to fossil fuel energy, as these countries scale up their energy supplies and address energy poverty. Renewable energy technology was once seen as unaffordable for developing countries.
