AAQS: Ambient Air Quality Standards
AAU: Assigned Amount Units
ABC: Austrian Bioenergy Centre
ABEA: Association of Bulgarian Energy Agencies
ABF: Aquatic Base Flow
ABF: Availability Based Tariff
ABMEE: Agency of Brasov for the Management of Energy and Environment
AC: Alternating Current
ACA: Annual Charge Adjustment
ACE: Area Control Error
ACE: ASEAN Centre for Energy
ACE: Association for the Conservation of Energy
ACEEE: American Council for an Energy Efficient Environment
ACRS: Accelerated Cost Recovery System
ACRS: Advisory Committee on Reactor Safety
ADITC: Accumulated Deferred Investment Tax Credit
ADR: Alternative Dispute Resolution
ADR: Asset Depreciation Range
AEC: Atomic Energy Commission
AEE: Association of Energy Engineers
AEP: American Electric Power
AER: Atomic Energy Research
AFC: Alkaline Fuel Cell
AFE: Authority For Expenditure
AFE: Authorization For Expenditure
AFUDC: Allowance for Fnds Used During Construction
AFV: Alternative Fuel Vehicle
AFW: auxiliary feedwater
AGA: American Gas Association
AGC: Automatic Generation Control
AGD: Associated Gas Distributors
AIMA: Agricultural Impact Mitigation Agreement
AIT: augmented inspection team
ALJ: Administrative Law Judge
AMBO: Armenia, Macedonia, Bulgaria Oil Pipeline
AMI: Advanced Metering Infrastructure
AMR: Automatic Meter Reading
AMRA: Automatic Meter Reading Association
ANGTA: Alaskan Natural Gas Transportation Act of 1977
ANGTS: Alaskan Natural Gas Transportation System