English Glossary
Completion requirements
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Rresistance | |
radiationmode of energy transfer (e.g. heat, light) from a source to an object which does not require contact between source and object (i.e. the energy can be transmitted through a vacuum) | |
radiation heat transferHeat transfer via electromagnetic radiation. The only mode of heat transfer that can pass through a vacuum. | |
radiosondesWeather measurement device with a radio transmitter connected to a balloon. | |
rapid voltage changesVoltage steps or other voltage variations (single events) that are a result of grid disturbances or switching actions. | |
rated powerPower of wind turbine at a given rated wind speed. | |
rated wind speedThe wind speed at which the turbine is producing its nameplate-rated power production. | |
RCDresidual-current device | |
RERenewable Energy | |
re-dispatchRe-scheduling of power plant on short notice to solve congestion in the grid. | |
reactance"Physical quantity in electrical AC systems which lead to a phase shift between voltage and current . | |
reaction turbineA turbine which has a different pressure before and after the impeller. It is fully submerged in water and operates under pressure. | |
reactive powerA component of apparent power (volt-amps) which does not produce any real power (watts). It is measured in VARs (volt-amps reactive). | |
REALUReducing Emission from All Land Uses | |
RECrenewable energy certificate | |
receiver tubeIn a CSP installation, the receiver tube comprises an absorber tube which is inside an evacuated glass tube. A heat transfer fluid is inside the absorber tube. Solar radiation is absorbed by the absorber tube and transferred to the heat transfer fluid. The outer evacuated glass tube acts to minimise heat losses. | |
recourseRecourse debt, also known as a recourse loan is a debt that is backed by collateral from the borrower. This type of debt allows the lender to collect from the debtor and the debtor's assets in the case of default as opposed to foreclosing on a particular property or asset. In the event that a project cannot service the financing or achieve completion, the financiers have 'recourse' to either cash from the project sponsor or other non–project security. | |
REDDReducing Emissions from Deforestation and Forest Degradation | |
redemptionThe repayment of a debt or a bond to a lender in pre-specified amounts before the debt's a bond's maturity date. | |