

| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| PSA | Power Switching Assembly | In English | → Energy economics → Electrical engineering | 
| PSCU | Power Supply Control Unit | In English | → Energy economics → Electrical engineering | 
| PSD | Power Systems Division | In English | → Energy economics → Electrical engineering | 
| PSDU | Power and Signal Distribution Unit | In English | → Energy economics → Electrical engineering → Telecommunications | 
| PSG | Power Subsystem Group | In English | → Energy economics → Electrical engineering | 
| PSI | Power Static Inverter | In English | → Energy economics | 
| PSIU | Power and Signal Interface Unit | In English | → Energy economics → Electrical engineering → Telecommunications | 
| PSM | Power Storage Module | In English | → Energy economics | 
| PSU | Power Switching Unit | In English | → Energy economics → Electrical engineering | 
| PT | Power Transfer | In English | → Energy economics | 
| PTO | Power Test Operation | In English | → Energy economics | 
| PU | Power Unit | In English | → Energy economics → Electrical engineering | 
| PUMA | Programme pour l'Utilisation des Matériaux Avancés | In French | |
| PUMA | Prix Unitaire Moyen des ouvrages gAz | In French | → Prices → Energy economics | 
| PV | Photovoltaic | In English | → Energy economics | 
| PVTCS | Photovoltaic Thermal Control System | In English | → Energy economics | 
| Qe2 | Quantock Energy & Environment | In English | → Energy economics → Environmental technology, water supply, waste management | 
| RAG | Réseau d'Alimentation Générale | In French | → Energy economics → France | 
| RAPHAEL | ReActor for Process heat, Hydrogen And ELectricity generation | In English | → Energy economics | 
| RAS | Remontée Aéro-Souterraine | In French | → Energy economics → Electrical engineering | 
| REACM | Regional Energy Agency of Central Macedonia | In English | → Energy economics | 
| REC | Regional Electricity Company | In English | → Energy economics → Electrical engineering | 
| REEEP | Renewable Energy and Energy Efficiency Partnership | In English | → Energy economics | 
| REGBIE | Regional Bioenergy Initiatives around Europe | In English | → Energy economics | 
| REIO | Renewable Energy Information Office | In English | → Energy economics | 
| RENAEL | Rete Nazionale Agenzie Energetiche Locali | In Italian | → Energy economics | 
| RENAISSANCE | Renewable ENergy Acting in SuStainable And Novel Community Enterprises | In English | → Energy economics | 
| RESTART | Renewable Energy Strategies and Technology Applications for Regenerating Towns | In English | → Energy economics | 
| REUS | Rational Energy Use & Solutions | In English | → Energy economics | 
| RILEM | Réunion Internationale des Laboratoires pour l'Essai des Matériaux | In French | → Organizations and associations → Research institutes → Materials science | 
| RKI | Rheinkraftswerk Iffezheim GmbH | In German | → Energy economics | 
| RNPP | Reliability and Network Planning Panel | In English | → Energy economics | 
| RPA | Réponses aux Problèmes d'Alimentation | In French | → Energy economics → Electrical engineering | 
| RSD | Relevé Sans Dérangement | In French | → Energy economics → Electrical engineering | 
| RSE | Réseau Spécial d'Exploitation | In French | → Energy economics | 
| RSF | Recherche Systématique de Fuites | In French | → Energy economics | 
| RTG | Radioisotope Thermal Generator | In English | → Energy economics → Nuclear technology | 
| SACRE | Système d'Aide au Choix de REnouvellement (des canalisations en fontes grises) | In French | → Software → Energy economics | 
| SADPT | Solar Array Drive and Power Transfer | In English | → Energy economics → Electrical engineering | 
| SAS | Solar Array Simulator | In English | → Energy economics | 
| SAS | Solar Array System | In English | → Energy economics | 
| SBEE | Société Béninoise d'Énergie Électrique | In French | → Energy economics → Electrical engineering | 
| SCARF | Save Cash and Reduce Fuel | In English | → Energy economics | 
| ScMM | Scripta Metallurgica et Materialia | In Latin | → Serial publications, periodicals → Metallurgy → Materials science | 
| SDIG | Société pour le Développement de l'Industrie du Gaz | In French | → Energy economics | 
| SEA | Samsø Energy Agency | In English | → Energy economics | 
| SEA | Slovak Energy Agency | In English | → Energy economics → Slovakia | 
| SEC | Sigma Energy Consulting | In English | → Energy economics → Consulting | 
| SECM | Science and Engineering of Composite Materials | In English | → Serial publications, periodicals → Materials science | 
| SECTM | Société d'Électricité et de Thermique du Centre et du Midi | In French | → Electrical engineering → Energy economics | 
| SEE | Service de l'Énergie de l'État | In French | → Central administration → Energy economics | 
| SEEA | Serbian Energy Efficiency Agency | In English | → Energy economics | 
| SEEC | Scottish Energy and Environment Conference | In English | → Organizations and associations → Environmental protection → Energy economics → United Kingdom | 
| SEN | Sistemul Electroenergetic Naţional | In Romanian | → Energy economics | 
| SEP | Solar Electric Propulsion | In English | → Energy economics → Electrical engineering | 
| SEPTEN | Service Études et Projets Thermiques Et Nucléaires | In French | → Energy economics → Nuclear technology | 
| SER | Sources d'Énergie Renouvelable | In French | → Energy economics | 
| SERC | Solar Energy Research Center | In English | → Research institutes → Energy economics | 
| SET | Solar Energy Thermionic | In English | → Energy economics | 
| SEVE | Services, Énergies et Espaces de Vie | In French | → Energy economics | 
| SFEN | Société Française d'Énergie Nucléaire (www.sfen.org) | In French | → Organizations and associations → Energy economics → Nuclear technology → France | 
| SFMC | Société des Forces Motrices du Châtelot | In French | → Energy economics | 
| SFOE | Swiss Federal Office of Energy | In English | → Energy economics | 
| SFR | Société Française de Réfrigération | In French | → Energy economics | 
| SGR | Saint-Gobain Recherche | In French | → Materials science | 
| SHEM | Société Hydroélectrique du Midi | In French | → Energy economics → Electrical engineering | 
| SHEMA | Société Hydraulique d'Études et de Missions d'Assistance | In French | → Energy economics | 
| SICFD | Système d'Information Client Fournisseur du Distributeur | In French | → Software → Energy economics | 
| SIECLE | Serveur Intranet des Enquêtes CLientèle EDF-GDF | In French | → Software → Trade → Energy economics | 
| SIP | Società Idroelettrica Piemontese | In Italian | → Energy economics → Electrical engineering | 
| SITEF | Salon International pour les Technologies et les Énergies du Futur | In French | → Congresses → Energy economics | 
| SITS | Syndicat général des Industries de matériels et procédés pour les Traitements de Surfaces | In French | → Organizations and associations → Materials science | 
| SMaS | Smart Material Structures | In English | → Serial publications, periodicals → Materials science | 
| SMES | Superconducting Magnetic Energy Storage | In English | → Energy economics | 
| SmMaS | Smart Materials and Structures | In English | → Serial publications, periodicals → Materials science | 
| SMPM | Structural Materials Property Manual | In English | → Materials science | 
| SMW | Standard Materials Work Sheet | In English | → Materials science | 
| SNET | Société Nationale d'Électricité et de Thermique | In French | → Energy economics → Electrical engineering | 
| SNRE | Stratégie Nationale de Recherche dans le domaine de l'Énergie | In French | → Research policy → Energy economics | 
| SoCe | Solar Cells | In English | → Serial publications, periodicals → Energy economics | 
| SoEn | Solar Energy | In English | → Serial publications, periodicals → Energy economics | 
| SoEnM | Solar Energy Materials | In English | → Serial publications, periodicals → Energy economics | 
| SOFC | Solid Oxide Fuel Cell | In French | → Energy economics | 
| SOFC | Solid Oxide Fuel Cell | In English | → Energy economics → Chemical technology | 
| SOFENA | Sofia Energy Agency | In English | → Energy economics | 
| SPCA | Secondary Power Control Assembly | In English | → Energy economics | 
| SPDB | Subsystem Power Distribution Box | In English | → Energy economics | 
| SPP | Slovenský Plynárenský Priemysel (www.spp.sk) | In Slovak | → Energy economics → Slovakia | 
| SpPow | Space Power | In English | → Serial publications, periodicals → Energy economics → Astronautics | 
| SPRMD | Space Power Resources and Manufacturing Development | In English | → Serial publications, periodicals → Energy economics → Astronautics | 
| SPRU | Standard Power Regulator Unit | In English | → Energy economics | 
| SPS | Satellite Power System | In English | → Energy economics → Astronautics | 
| SPS | Spark Plasma Sintering | In English | → Materials science | 
| SREP | Scaling-up Renewable Energy Programme for Low-Income Countries | In English | → Energy economics → Development | 
| SRL | Surface Review and Letters | In English | → Serial publications, periodicals → Materials science | 
| SSE | Stredoslovenská energetika (www.sse.sk) | In Slovak | → Energy economics → Slovakia | 
| SSPRv | Space and Solar Power Review | In English | → Serial publications, periodicals → Astronomy → Energy economics | 
| SSPS | Solar Satellite Power Station | In English | → Energy economics → Astronautics | 
| SSRV | Solar-Sail Race Vehicle | In English | → Energy economics → Vehicle engineering | 
| STEG | Service Technique Électricité et Gaz | In French | → Electrical engineering → Energy economics | 
| STEP | Station de Transfert d'Énergie par Pompage | In French | → Energy economics | 
| STG | Service Technique Gaz | In French | → Energy economics | 
| SuCT | Surface and Coatings Technology | In English | → Serial publications, periodicals → Materials science → Chemical technology | 
| SurIA | Surface and Interface Analysis | In English | → Serial publications, periodicals → Materials science | 
| SurSc | Surface Science | In English | → Serial publications, periodicals → Materials science | 
| SurSR | Surface Science Reports | In English | → Serial publications, periodicals → Materials science | 
| SurSS | Surface Science Spectra | In English | → Serial publications, periodicals → Materials science | 
| SuRvL | Surface Reviews and Letters | In English | → Serial publications, periodicals → Materials science | 
| SVME | Schweizerischer Verband für Materialwirtschaft und Einkauf (www.svme.ch) | In German | → Organizations and associations → Trade → Materials science → Switzerland | 
| SWEA | Severn Wye Energy Agency | In English | → Energy economics | 
| SWEPCO | Southwestern Electric Power Company | In English | → Organizations and associations → Energy economics → Electrical engineering | 
| SYCOET | SYstème de COnfiguration des Équipements de Téléconduite (pour les réseaux de transport d'énergie) | In French | → Software → Energy economics | 
| SYGARD | SYstème de Gestion d'Accès au Réseau de Distribution | In French | → Software → Energy economics | 
| TAEM | Terminal Area Energy Management | In English | → Energy economics | 
| TARG | Téléchargement des Applications Réseau Gaz | In French | → Computer science → Energy economics | 
| TARTAM | TArif Réglementé Transitoire d'Ajustement du Marché | In French | → Prices → Energy economics | 
| TASC | Tecnologie Avanzate e nanoSCienza | In Italian | → Research institutes → Materials science → 6203 → Italia | 
| TC | Transformateur de Courant | In French | → Energy economics → Electrical engineering | 
| TdE | Transalpina di Energia | In Italian | → Energy economics | 
| TEA | Tipperary Energy Agency | In English | → Energy economics | 
| TEGI | Tractebel Electricity & Gas International | In English | → Energy economics → Electrical engineering | 
| TEMASOL | Total EDF Maroc Solaire | In French | → Energy economics → Morocco | 
| TENP | Transport Électricité Normandie-Paris | In French | → Energy economics → Electrical engineering → France | 
| TEO | Transport Électricité Ouest | In French | → Energy economics → Electrical engineering | 
| TEP | Tonne Équivalent Pétrole | In French | → Energy economics → 665 | 
| TERA | Transport Électricité Rhône-Alpes | In French | → Energy economics → Electrical engineering | 
| TESE | Transport Électricité Sud-Est | In French | → Energy economics → Electrical engineering | 
| TESO | Transport Électricité Sud-Ouest | In French | → Energy economics → Electrical engineering | 
| TGV | Turbine - Gaz - Vapeur | In French | → Energy economics | 
| ThF | Thermique à Flamme | In French | → Energy economics | 
| TICGN | Taxe Intérieure de Consommation sur le Gaz Naturel | In French | → Taxes, duties → Energy economics | 
| TMP | Thermo-Mécanique et Plasticité | In French | → Materials science → Mechanical engineering → Chemical technology | 
| TMS | Thermal Management Solutions | In English | → Energy economics | 
| TREN | TRansport et ÉNergie | In French | → Energy economics → Transport and postal services | 
| TrGRC | Geothermal Resources Council Transactions | In English | → Serial publications, periodicals → Earth sciences → Energy economics | 
| TRICOT | TRansfert des Index des COmpteurs Télérelevables | In French | → Energy economics → Electrical engineering | 
| TSS | Tarif Spécial de Solidarité | In French | → Prices → Energy economics | 
| UAEA | Uluslararası Atom Enerji Ajansı (www.iaea.org) = IAAE | Internacia Agentejo pri Atom-Energio | In Esperanto = IAEA | International Atomic Energy Agency | In English = AIEA | Agence Internationale de l'Énergie Atomique | In French = AIEA | Agenţia Internaţională pentru Energie Atomică | In Romanian = МААЕ | Международна агенция за атомна енергия | In Bulgarian = AIEA | Agència Internacional de l'Energia Atòmica | In Catalan = MAAE | Mezinárodní agentura pro atomovou energii | In Czech = IAEA | Det Internationale Atomenergiagentur | In Danish = IAEO | Internationale Atomenergieorganisation | In German = OIEA | Organismo Internacional de Energía Atómica | In Spanish = סבא"א | הסוכנות הבינלאומית לאנרגיה אטומית | In Hebrew = IAEA | International Atomenergie Agence | In Letzeburgesh = AIEA | Agenzia Internazionale per l'Energia Atomica | In Italian = IAEA | अंतर्राष्ट्रीय परमाणु ऊर्जा अधिकरण | In Hindi = MAAE | Меѓународна агенција за атомска енергија | In Macedonian = МАГАТЭ | Международное агентство по атомной энергии | In Russian = AIEA | Agência Internacional de Energia Atómica | In Portuguese = MAEA | Międzynarodowa Agencja Energii Atomowej | In Polish = МАГАТЕ | Міжнародне агентство з атомної енергії | In Ukrainian = IAEA | สำนักงานพลังงานปรมาณูระหว่างประเทศ | In Thai = EANA | Energia Atomikoaren Nazioarteko Agentzia | In Basque | In Turkish | → International relations → Energy economics → Nuclear technology | 
| UEA | United Energy Associates (www.uea.com) | In English | → Energy economics → Electrical engineering → Environmental technology, water supply, waste management | 
| UES | Unified Energy System = ЕЭС | Единые Энергетические Системы | In Russian | In English | → Energy economics → Electrical engineering | 
| UKAEA | United Kingdom Atomic Energy Agency | In English | → Public administration, government → Energy economics → Nuclear technology | 
| UNELEG | Union Nationale des Entreprises Locales d'Électricité et de Gaz | In French | → Organizations and associations → Electrical engineering → Energy economics | 
| UNIPE | Unité Nationale de l'Ingénierie du Parc en Exploitation | In French | → Energy economics → Electrical engineering | 
| UPS | Uninterrupted Power Supply | In English | → Energy economics → Electrical engineering | 
| URCG | Unité de Reconditionnement des Compteurs Gaz | In French | → Energy economics | 
| UTE | Usina Termelétrica Norte Fluminense (www.utenortefluminense.com.br) | In Portuguese | → Energy economics → Electrical engineering → Brazil | 
| VEAG | Vereinigte Energiewerke AG | In German | → Energy economics | 
| VEM | Viscoelastic Materials | In English | → Materials science | 
| VGR | Vente de Gaz Réparti | In French | → Energy economics | 
| VIZIR | Visualisation des Zones d'Influence de Réseau | In French | → Energy economics → Electrical engineering | 
| VOGUE | Vers l'Optimisation de la Gestion et de l'Utilisation de l'Énergie | In French | → Energy economics → Electrical engineering | 
| VPD | Variable Power Divider | In English | → Energy economics → Electrical engineering | 
| VPP | Virtual Power Plant | In English | → Energy economics → Electrical engineering | 
| VTC | Vlaamse Thermie Coordinate | In Dutch | → Organizations and associations → Energy economics → Belgium | 
| WEC | World Energy Council = CME | Conseil Mondial de l'Énergie | In French = CME | Consiliul Mondial al Energiei | In Romanian | In English | → Organizations and associations → International relations → Energy economics | 
| WEMAL | Wexford Energy Management Agency | In English | → Energy economics | 
| WiEn | Wind Energy | In English | → Serial publications, periodicals → Energy economics → 621548 | 
| WiEng | Wind Engineering | In English | → Serial publications, periodicals → Energy economics → 621548 | 
| WING | Werkstoffinnovationen für Industrie und Gesellschaft | In German | → Research policy → Materials science | 
| WISE | World Information Service on Energy | In English | → Energy economics | 
| WREAN | Western Regional Energy Agency & Network | In English | → Energy economics | 
| WREN | World Renewable Energy Network | In English | → Energy economics | 
| WSED | World Sustainable Energy Days | In English | → Energy economics | 
| WTREA | Watford and Three Rivers Energy Agency | In English | → Energy economics | 
| XMCD | X-ray Magnetic Circular Dichroism | In English | → Electricity, magnetism, electromagnetism → Materials science | 
| ZECK | Zespół Elektrociepłowni Wrocławskich "Kogeneracja" (www.kogeneracja.com.pl) | In Polish | → Energy economics → Electrical engineering → Poland | 
| ZeIE | Zeitschrift elektrische Informations- und Energietechnik | In German | → Serial publications, periodicals → Energy economics → Electrical engineering | 
| ZEP | Zero Emission Fossil Fuel Power Plants (www.zero-emissionplatform.eu) | In English | → Energy economics → 5023 → Europe | 
| ZRA | Zambezi River Authority | In English | → Organizations and associations → Hydrology → Energy economics | 
| ZREU | Zentrum für rationelle Energieanwendung und Umwelt | In German | → Energy economics | 
| ΔΕΗ | Δημόσια Επιχείρηση Ηλεκτρισμού (www.dei.gr) | In Greek | → Energy economics → Electrical engineering → Greece | 
| ΔΕΠΑ | Δημόσια επιχείρηση Αερίου (www.depa.gr) | In Greek | → Energy economics → Greece | 
| ЕЭС | Единые Энергетические Системы = UES (look above) | In Russian | → Energy economics → Electrical engineering | 
| МААЕ | Международна агенция за атомна енергия (www.iaea.org) = UAEA, IAAE, IAEA, AIEA, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, EANA (look above) | In Bulgarian | → International relations → Energy economics → Nuclear technology | 
| МАГАТЕ | Міжнародне агентство з атомної енергії (www.iaea.org) = UAEA, IAAE, IAEA, AIEA, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, EANA (look above) | In Ukrainian | → International relations → Energy economics → Nuclear technology | 
| МАГАТЭ | Международное агентство по атомной энергии (www.iaea.org) = UAEA, IAAE, IAEA, AIEA, МААЕ, MAAE, IAEO, OIEA, סבא"א, MAEA, МАГАТЕ, EANA (look above) | In Russian | → International relations → Energy economics → Nuclear technology | 
| МЭА | Международное энергетическое агентство = AIE | Agence Internationale de l'Énergie | In French = IEA | International Energy Agency | In English = IEA | Internationale Energieagentur | In German = MAE | Międzynarodowa Agencja Energii[edytuj] | In Polish = IEA | Internationaal Energie Agentschap | In Dutch = IEA | 国際エネルギー機関 | In Japanese = AIE | Agencia Internacional de la Energía | In Spanish | In Russian | → International relations → Energy economics | 
| ОГК | Оптовая генерирующая компания = OGK | Optovaya Giéniérirouyouchtchaya Kompaniya | In Russian | In Russian | → Energy economics → Electrical engineering | 
| ОГК-1 | Оптовая генерирующая компания № 1 (www.ogk1.com) | In Russian | → Energy economics → Electrical engineering | 
| ОГК-2 | Оптовая генерирующая компания № 2 (www.ogk2.ru) | In Russian | → Energy economics → Electrical engineering → Russia | 
| ОГК-3 | Оптовая генерирующая компания № 3 (www.ogk3.ru) | In Russian | → Energy economics → Electrical engineering → Russia | 
| ОГК-4 | Оптовая генерирующая компания № 4 (www.ogk-4.ru) | In Russian | → Energy economics → Electrical engineering → Russia | 
| ОГК-5 | Оптовая генерирующая компания № 5 (www.ogk-5.com) | In Russian | → Energy economics → Electrical engineering | 
| ФЕЕ | Фонд Енергийна Ефективност = BgEEF | Bulgarische Energieeffizienzfonds | In German = BgEEF | Bulgarian Energy Efficiency Fund | In English | In Bulgarian | → Energy economics | 
| סבא"א | הסוכנות הבינלאומית לאנרגיה אטומית (www.iaea.org) = UAEA, IAAE, IAEA, AIEA, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, EANA (look above) | In Hebrew | → International relations → Energy economics → Nuclear technology |