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Réseau de Transport d'Électricité
Réseau de Transport d'Électricité (RTE) is the French transmission system operator that owns and runs the high-voltage electricity grid in mainland France, created in 2000.
Reserve replacement ratio
The reserve replacement ratio (RRR) is an upstream oil and gas measure dividing net proved reserves added by production; above 100% means the reserve base grew.
Reservoir characterization
Reservoir characterization is the process of integrating geological, geophysical, petrophysical, and reservoir engineering data to describe petroleum reservoir properties, particularly at locations between wells, using well logs, cores, and seismic data.
Reservoir engineering
Reservoir engineering is the branch of petroleum engineering that applies engineering principles to oil and gas reservoirs, estimating reserves and predicting fluid flow and recovery.
Reshadat oil field
Reshadat is an offshore oil field in the Persian Gulf, about 100 km southwest of Iran's Lavan Island. It was known as Rostam before the 1979 revolution.
Residue hydroconversion
Residue hydroconversion is the catalytic upgrading of petroleum residua, the heavy bottoms of crude distillation, with hydrogen, converting heavy molecules into lighter fractions while removing sulfur, nitrogen, and metals.
Resistivity logging
Resistivity logging is a well-logging technique that measures the electrical resistivity of rock formations around a borehole, used with Archie's equation to estimate porosity and water saturation in petroleum exploration.
Resonance escape probability
Resonance escape probability is the probability that a fission neutron slows down through a fuel's resonance energy region without being captured, denoted p in reactor physics.
Resonant transformer
A resonant transformer is a high-voltage test transformer operated in a resonant circuit, producing large test voltages from a small power source for testing cables and switchgear.
ResponsibleSteel
ResponsibleSteel is a global not-for-profit multi-stakeholder organization founded in 2016 that sets a certification standard for responsible steel production, covering climate change, labor and human rights, and environmental stewardship.
Retrievability
Retrievability is the ability in principle to recover radioactive waste or entire waste packages emplaced in a geological disposal repository; technically practicable for hundreds of years, and a legal requirement in some countries.
RETScreen
RETScreen is a clean energy management software platform developed by the Government of Canada for evaluating, monitoring, and reporting renewable energy and energy efficiency projects worldwide.
Revelstoke hydroelectric plant
The Revelstoke hydroelectric plant, also known as Revelstoke Dam and Generating Station, is a 2,480 MW BC Hydro station on the Columbia River in British Columbia.
Reverion
Reverion GmbH is a German clean-energy startup spun off from the Technical University of Munich, based in Eresing, that builds container-sized carbon-negative biogas power plants.
Reverse bias breakdown
Reverse bias breakdown is the onset of large reverse current in a solar cell under reversed voltage, occurring around −2 V in perovskite cells and causing hot spots and degradation.
Reverse-bias degradation of perovskite solar cells
Reverse-bias degradation is the efficiency loss perovskite solar cells suffer under negative voltage, typically when partial shading drives a cell in a series module below zero volts.
Reversible hydration of MAPbI3
Reversible hydration of MAPbI3 is the uptake of water vapor by methylammonium lead iodide, a perovskite used in solar cells, forming hydrates that revert on drying.
Reversible solid oxide cell
A reversible solid oxide cell is a high-temperature electrochemical device whose one cell stack alternates between producing electricity from hydrogen or other fuels and splitting steam into hydrogen.
Revithoussa LNG Terminal
The Revithoussa LNG Terminal is Greece's liquefied natural gas import and regasification terminal on an islet near Megara, west of Athens. Commissioned in 2000, it supplies a quarter of Greek gas imports.
Revolution Wind
Revolution Wind is a 704-megawatt offshore wind farm in the Atlantic about 15 nautical miles southeast of Point Judith, Rhode Island, developed by Ørsted and Skyborn Renewables.
Rex NE oil field
Rex NE is a conventional onshore oil field in Arauca, Colombia, discovered in late 2017 and declared commercial in 2018, operated by SierraCol Energy near Caño Limón.
Rex Tillerson
Rex Wayne Tillerson is an American energy executive who led ExxonMobil as chairman and CEO from 2006 to 2016, then served as Secretary of State under President Trump.
RFX
RFX (Reversed Field eXperiment) is the largest reversed-field pinch magnetic confinement fusion experiment, built in Padua, Italy, producing first plasma in 1991 and now operating as RFX-mod2 for both RFP and tokamak research.
Rhode Island Energy
Rhode Island Energy is the utility that delivers electricity and natural gas to over 770,000 customers across Rhode Island, operating as a subsidiary of PPL Corporation.
Rhondda
Rhondda (Y Rhondda), the Rhondda Valleys of South Wales: twin coal-mining valleys, Rhondda Fawr and Rhondda Fach, meeting at Porth. Known for Walter Coffin's pioneering coal industry, steam coal fame, terraced settlements, Rhondda Heritage Park, and coal-tip and flood hazards.
Rhourd Ennous-Hassi R'Mel Gas Pipeline
The Rhourd Ennous-Hassi R'Mel Gas Pipeline (خط أنابيب رورد النوس - حاسي الرمل) is a pair of 48-inch Sonatrach pipelines carrying gas from Rhourde Nouss to Hassi R'Mel.
Rhourde El Baguel oil field
Rhourde El Baguel is a large onshore oil field in eastern Algeria, about 90 km southeast of Hassi Messaoud, once the country's second largest oil field after Hassi Messaoud.
Rhourde El Krouf oil field
Rhourde El Krouf (RKF) is an onshore oil field in the Berkine Basin of eastern Algeria, discovered in 1992 and producing light oil since 1996.
Rhourde Nouss Gas Field
Rhourde Nouss Gas Field (رورد النص) is a gas-condensate field in southeastern Algeria's Illizi basin, Algeria's second largest gas development after Hassi R'Mel, operated by Sonatrach.
Rhum Oil and Gas Field
Rhum is a high-pressure, high-temperature gas field in the UK northern North Sea, discovered in 1977 and producing since 2005 through subsea wells tied to the Bruce platform.