NATIONAL FOREWORD

This Indian Standard (Part 1) which is identical with ISO/IEC 13273-1 : 2015 ‘Energy efficiency and renewable energy sources — Common international terminology — Part 1: Energy efficiency’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Energy Management Sectional Committee, and approval of the Mechanical Engineering Division Council.

This Indian Standard is published in two parts. The other part in this series is:

Part 2 Renewable energy sources

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear, referring to this standard, they should be read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practice is to use a point (.) as the decimal marker.