Glossary

For distributed renewable energy systems for energy access, a mini-grid/micro-grid typically refers to an independent grid network operating on a scale of less than 10 MW (with most at very small scale) which distributes electricity to a limited number of customers. Mini-/micro-grids also can refer to much larger networks (e.g.,…

Nameplate capacity, also known as the rated capacity, nominal capacity, installed capacity, or maximum effect, is the intended full-load sustained output of a facility such as a power plant, electric generator, a chemical plant, fuel plant, metal refinery, mine, and many others. Nameplate capacity is the number registered with authorities…

A model in which a private company or non-governmental organisation is selected through a competitive process and given the exclusive obligation to provide energy services to customers in its service territory, upon customer request. The concession approach allows concessionaires to select the most appropriate and cost-effective technology for a given…

The amount of electric power delivered or required at any specific point or points on an electrical system. The requirement originates at the energy-consuming equipment of the customer. Load Factor measures the relationship between unit consumption and maximum demand and is the percentage capacity utilisation figure of a site's power consumption.…

The cost per unit of energy from an energy generating asset which is based on the present value of its total construction and lifetime operating costs, divided by total energy output expected from that asset over its lifetime. Levelised cost of energy is a commonly used measure of the cost…

These relate mostly to the costs of providing the infrastructure required to deliver power. They include the cost of energy lost as heat as it travels from the power station down the transmission and distribution wires to the consumption point.

Energy input per unit of time, usually expressed in kWh/hour BTU/hour

A device which transfers heat from a heat source to a heat sink using a refrigeration cycle which is driven by external electric or thermal energy. It can use the ground (geothermal/ ground-source), the surrounding air (aerothermal/air-source) or a body of water (hydrothermal/water-source) as a heat source in heating mode,…

A measure of power – 1,000,000,000 watts / 1,000 MW

Breakdown of hydrocarbons into a syngas by reacting the feedstocks at high temperature while carefully controlling the amount of oxygen present.