Convert Terawatt-hour to Erg (TWh to Erg)

Terawatt-hour (TWh) and Erg (Erg) are both units of energy. With the conversion form below, you can effortlessly and accurately convert terawatt-hour to erg. This free online calculator tool makes it simple and easy to perform the conversion from TWh unit to the Erg unit.

Energy is the capacity of a physical system to do work or produce heat. The SI unit is the joule (J), defined as the work done when a force of one newton is applied over one meter (1 J = 1 N·m = 1 kg·m²/s²). Other important units include the kilowatt-hour (kWh)—used on electricity bills (1 kWh = 3.6 MJ)—the calorie (cal)—used in nutrition (1 food Calorie = 1 kcal = 4,184 J)—and the electronvolt (eV), used in atomic and particle physics (1 eV = 1.602 × 10⁻¹⁹ J).

A terawatt-hour (symbol: TWh) is a unit of energy equal to the amount of energy produced or consumed at a constant power of one terawatt for one hour. One terawatt-hour is exactly 3.6 × 10¹⁵ joules. Terawatt-hours are widely used in the electricity industry, national energy statistics, renewable energy planning, and power system analysis to express very large quantities of electrical energy.

Because one terawatt-hour represents an enormous amount of energy, it is commonly used to report the annual electricity generation or consumption of countries, regions, utility companies, and large power plants. Smaller electrical energy quantities are typically measured in watt-hours (Wh), kilowatt-hours (kWh), megawatt-hours (MWh), or gigawatt-hours (GWh).

Erg (symbol: erg) is a unit of energy in the centimeter-gram-second (CGS) system, equal to 1 × 10^-7 joule. Although largely replaced by SI units, the erg still appears in astrophysics, older scientific literature, and some fields of physics. Learn more about erg.