First published here . I was glad to see that Amory Lovins returned to the subject of the size of the energy efficiency resource in a recent paper in Environmental Research Letters . Amory mentions…

Compressed Air: the 4th Utility Without knowing who has invented this phrase, e.g. David Andrews from Sullair used it in a recent blog and it is even mentioned at wikipedia, it clearly indicates the…

The following article is the keynote article in the Global Sustain Yearbook 2016/17 by LI Yong, Director General of the United Nations Industrial Development Organization (UNIDO). Li Yong focusses on…

The following is the text of my presentation made in Cairo on the 18th December 2023 at a UNIDO organised event presenting the results of a project on ESCO contracts completed by a consortium…