E
- E&D—Exploration and development expenses
- E85—E85 fuel: A fuel containing a mixture of 85 percent ethanol and 15 percent gasoline
- E95—like E85 fuel but with less gasoline. A fuel containing a mixture of 95 percent ethanol and 5 percent gasoline
- EA—Environmental assessment as in an Environmental impact assessment
- EAR—Estimated additional resources, as in Considering reserves of uranium deposits
- EC—European Commission
- ECAR—East Central Area Reliability Coordination Agreement (US)
- EPCIP—European Programme for Critical Infrastructure Protection
- ECPA—Electric Consumers Protection Act (US)
- EdF—Electricité de France
- EDRP—Emergency demand response program
- EE—Energy efficiency
- EEI—Edison Electric Institute
- EHV—Extra high voltage
- EIA—Energy Information Administration (US)
- —Environmental impact assessment (international)
- EIB—European Investment Bank
- EIPP—Eastern Interconnection Phasor Project
- EIS—Environmental Impact Statement (US)
- ELCON—Electricity Consumers Resources Council
- EMF—Electro magnetic field
- EMP—Environmental Management Plan
- EOR—Enhanced oil recovery
- EPA—United States Environmental Protection Agency
- EPAct—Energy Policy Act of 1992 (US)
- —Energy Policy Act of 2005 (US)
- EPRI—Electric Power Research Institute (US)
- EQR—Electric Quarterly Report
- ERA—Economic Regulatory Administration (part of United States Department of Energy
- ERCOT—Electric Reliability Council of Texas, Inc, a Regional Transmission Organization. (US)
- ERGEG—European Regulators Group for Electricity and Gas
- ERO—Electric Reliability Organization. The US designated NERC as its ERO.
- ERRA - Energy Regulators Regional Association
- ESCO—Energy service company
- ESI—Environmental Sustainability Index
- ESMAP—Energy Sector Management Assistance Programme
- ESS—Energy Storage System, as in grid energy storage (electricity)
- ETBE—ethyl tertiary butyl ether
- ETSO—European Transmission System Operators association
- EU—European Union
- EUEF—European Union Energy Facility
- EUEI—European Union Energy Initiative
Read more about this topic: List Of Energy Abbreviations