| Subject | English | Latvian |
| energ.ind. | Action Plan for Energy Efficiency | Energoefektivitātes rīcības plāns |
| mech.eng. | braking efficiency | bremzēšanas efektivitāte |
| econ., environ. | carbon efficiency | oglekļa dioksīda emisiju efektivitāte |
| gen. | carbon efficiency | COsub2sub emisiju efektivitāte |
| med., life.sc. | cloning efficiency | klonēšanas efektivitāte |
| econ., environ. | CO2 efficiency | oglekļa dioksīda emisiju efektivitāte |
| gen. | CO2 efficiency | COsub2sub emisiju efektivitāte |
| econ. | cost efficiency | izmaksu efektivitāte |
| econ. | cost efficiency | rentabilitāte |
| environ. | economical-ecological efficiency The competency in performance in business matters involving the relation between financial and environmental principles | ekonomiskā un ekoloģiskā efektivitāte |
| comp., MS | efficiency bonus | efektivitātes prēmija (In computer games, an additional score or points given for efficient play) |
| environ. | efficiency criterion Parameter or rule for assessing the competency in performance of production relative to the input of resources | efektivitātes kritērijs |
| environ. | efficiency level The ratio of output to input, usually given as a percentage | efektivitātes līmenis |
| environ., energ.ind. | Energy Charter Protocol on Energy Efficiency and Related Environmental Aspects | Enerģētikas hartas protokols par energoefektivitāti un ar to saistītajiem vides aizsardzības aspektiem |
| econ. | energy efficiency | energoefektivitāte |
| environ. | energy efficiency Refers to actions to save fuels by better building design, the modification of production processes, better selection of road vehicles and transport policies, the adoption of district heating schemes in conjunction with electrical power generation, and the use of domestic insulation and double glazing in homes | energoefektivitāte |
| energ.ind. | energy efficiency | energoatdeve |
| energ.ind. | Energy Efficiency Action Plan | valsts energoefektivitātes rīcības plāns |
| environ., energ.ind., el. | energy efficiency class | energoefektivitātes klase |
| energ.ind. | energy efficiency improvement | energoefektivitātes uzlabošana |
| environ., energ.ind. | energy-efficiency labelling | energoefektivitātes marķēšana |
| energ.ind. | Energy Efficiency Package | energoefektivitātes tiesību aktu kopums |
| energ.ind., el. | energy efficiency ratio | energoefektivitātes koeficients |
| fin., energ.ind. | Global Energy Efficiency and Renewable Energy Fund | Pasaules energoefektivitātes un atjaunojamās enerģijas fonds |
| environ. | improvement of efficiency The beneficial development or progress in the volume of output that is achieved in terms of productivity and input, or in getting the maximum possible output from given or allocated resources | efektivitātes uzlabošana |
| energ.ind. | International Partnership for Energy Efficiency Cooperation | Starptautiskā partnerība sadarbībai energoefektivitātes jomā |
| energ.ind. | National Energy Efficiency Action Plan | valsts energoefektivitātes rīcības plāns |
| comp., MS | Power Efficiency Diagnostic | Enerģijas efektivitātes diagnostika (A Wizard-based interface for maximizing battery life based on user preferences) |
| fin. | principle of efficiency | lietderības princips |
| econ., account. | principle of efficiency | produktivitāte |
| fin. | principles of economy, efficiency and effectiveness | saimnieciskuma, lietderības un efektivitātes princips |
| environ. | principles of effectiveness, efficiency and equity | efektivitātes, iedarbīguma un taisnīguma principi |
| nat.sc. | recovery efficiency | atgūstamība |
| transp., tech., law | relative spectral luminous efficiency | relatīvā spektrālā gaismas efektivitāte |
| environ. | resource efficiency | resursu efektivitāte |
| environ. | resource efficiency | resursu izmantošanas efektivitāte |
| environ. | resource efficiency | resursu efektīva izmantošana |
| chem. | separation efficiency | atdalīšanas efektivitāte |
| transp., nautic., environ. | Ship Energy Efficiency Management Plan | kuģu energoefektivitātes pārvaldības plāns |
| el. | spectral luminous efficiency | spektrālā gaismas efektivitāte |