Home›Grid Equipment›Maturity›TRL 9: Actual System Proven in Operational EnvironmentBrowse ByTRL 9: Actual System Proven in Operational EnvironmentThis dimension marks how mature a specific energy technology actually is, experimental, emerging or fully commercial. Wikipedia notes that "in some geographic localities, photovoltaic solar or onshore wind is the cheapest new-build electricity," a sign of just how mature those particular technologies have become. Browsing by maturity separates technologies still emerging from those already fully commercial.FactsTRL 9: Actual System Proven in Operational EnvironmentSourcesComments (0)Reader Challenges (0)FactsComparisonEra of EmergenceWell-attested1876 1TRL 9: Actual System Proven in Operational EnvironmentFilter Results51 entriesTechnology TypeAllGrid Monitoring, Metering and Control (11)HVDC and Power Converters (2)Reactive Power and Voltage Control (11)Switchgear and Circuit Protection (14)Transformers (7)Vehicle Charging and Grid Interface (2)Invented EraAll1879 (1)1882 (1)1885 (2)1895 (1)1930 (1)1940 (1)1954 (1)1957 (1)1972 (2)1988 (1)1995 (2)DeveloperAllElihu Thomson (1)George Westinghouse (1)John Dixon Gibbs (1)John Hopkinson (1)Lucien Gaulard (1)Mikhail Dolivo-Dobrovolsky (1)Thomas Edison (1)William Stanley Jr. (1)Show ResultsBrowseCompareSelect all 50Arc-Fault Circuit InterrupterTRL 9: Actual System Proven in Operational EnvironmentAutomatic Generation ControlTRL 9: Actual System Proven in Operational EnvironmentAutomatic Meter ReadingTRL 9: Actual System Proven in Operational EnvironmentAutomatic Transfer SwitchTRL 9: Actual System Proven in Operational EnvironmentBooster (electric power)TRL 9: Actual System Proven in Operational EnvironmentBusbarTRL 9: Actual System Proven in Operational EnvironmentCable Fault LocationTRL 9: Actual System Proven in Operational EnvironmentCapacitor BankTRL 9: Actual System Proven in Operational EnvironmentCharging StationTRL 9: Actual System Proven in Operational EnvironmentCircuit BreakerTRL 9: Actual System Proven in Operational EnvironmentConductive ChargingTRL 9: Actual System Proven in Operational EnvironmentCurrent TransformerTRL 9: Actual System Proven in Operational EnvironmentCycloconverterTRL 9: Actual System Proven in Operational EnvironmentDistribution Management SystemTRL 9: Actual System Proven in Operational EnvironmentDynamic Line RatingTRL 9: Actual System Proven in Operational EnvironmentElectrical DisconnectorTRL 9: Actual System Proven in Operational EnvironmentElectrical TransformerTRL 9: Actual System Proven in Operational EnvironmentEnergy Management System (Electrical Grid)TRL 9: Actual System Proven in Operational EnvironmentFault Current LimiterTRL 9: Actual System Proven in Operational EnvironmentFlexible AC Transmission SystemTRL 9: Actual System Proven in Operational EnvironmentGrounding TransformerTRL 9: Actual System Proven in Operational EnvironmentHigh-Voltage Direct CurrentTRL 9: Actual System Proven in Operational EnvironmentHVDC Converter StationTRL 9: Actual System Proven in Operational EnvironmentInduction RegulatorTRL 9: Actual System Proven in Operational EnvironmentNetwork ProtectorTRL 9: Actual System Proven in Operational EnvironmentOutage Management SystemTRL 9: Actual System Proven in Operational EnvironmentPhasor Measurement UnitTRL 9: Actual System Proven in Operational EnvironmentPower InverterTRL 9: Actual System Proven in Operational EnvironmentPower TransformerTRL 9: Actual System Proven in Operational EnvironmentPower-Line CommunicationTRL 9: Actual System Proven in Operational EnvironmentProtective RelayTRL 9: Actual System Proven in Operational EnvironmentQuadrature BoosterTRL 9: Actual System Proven in Operational EnvironmentRecloserTRL 9: Actual System Proven in Operational EnvironmentResidual-Current DeviceTRL 9: Actual System Proven in Operational EnvironmentRing Main UnitTRL 9: Actual System Proven in Operational EnvironmentSCADATRL 9: Actual System Proven in Operational EnvironmentSectionalizerTRL 9: Actual System Proven in Operational EnvironmentShunt ReactorTRL 9: Actual System Proven in Operational EnvironmentSmart MeterTRL 9: Actual System Proven in Operational EnvironmentStatic Synchronous CompensatorTRL 9: Actual System Proven in Operational EnvironmentStatic Synchronous Series CompensatorTRL 9: Actual System Proven in Operational EnvironmentStatic VAR CompensatorTRL 9: Actual System Proven in Operational EnvironmentSurge ArresterTRL 9: Actual System Proven in Operational EnvironmentSwitchgearTRL 9: Actual System Proven in Operational EnvironmentSynchronous CondenserTRL 9: Actual System Proven in Operational EnvironmentTap ChangerTRL 9: Actual System Proven in Operational EnvironmentThyristor-Controlled Series CapacitorTRL 9: Actual System Proven in Operational EnvironmentUnified Power Flow ControllerTRL 9: Actual System Proven in Operational EnvironmentVacuum InterrupterTRL 9: Actual System Proven in Operational EnvironmentVoltage RegulatorTRL 9: Actual System Proven in Operational EnvironmentShowing 1 to 50 of 51, page 1 of 2.12Next →Sources1. Transformer - Wikipediatier 2WikipediaFirst alternating current transformers, Yablochkov 1876 induction coilsQuote, First alternating current transformers, Yablochkov 1876 induction coilsIn 1876, Russian engineer Pavel Yablochkov invented a lighting system based on a set of induction coils where the primary windings were connected to a source of AC.View the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.