• Energy efficiency ratio, a measure to assess heat pumps and air conditioners which is related to the Seasonal energy efficiency ratio
• Energy efficiency rating, a score out of six stars applied to housing in the Australian Capital Territory
• East of England Regiment, a British army unit
• Equine Exertional Rhabdomyolysis, a muscular problem due to carbohydrate overload in horses
• Enhanced Entity-Relationship Model, a high-level conceptual data model extended from the Entity-Relationship Model.
• The European Economic Review, a journal published by Elsevier
• Escape, Evacuation and Rescue

See also

• Energy Efficiency and Renewable Energy (EERE), a U.S. government office