In Senegal, Mali, Ecuador, Colombia, Peru, Honduras, Pakistan, The Netherlands, Nepal, Pakistan, Phillipinas and Honduras, I worked on issues related to renewable energy and energy saving.

In Pakistan high altitude areas I worked on the improvement of houses with regard to thermal insulation, smoke control, sanitation and eartquake engineering. 

In Nepal I worked on the technical improvement of Solar Water Heaters (SWH) in high altitude areas and the SWH branch development. The report gives a number of possible improvements for the mountain areas. 2.2MB, 31 pages.

In the Phillipinas I developed a solar dryer for  with auxiliary heating for 150 m3 sawn wood.

In Nepal I worked on the design for biogas reactors for high altitude areas, the improvement of the existing Biogas Programme and the introduction on Zero Leakage Urban Biogas Reactor (ZLUBR), combining several technologies from Nepal, India and Europe. Introduction year 2009: 6 pages, 0.6MB. Full technical document eventually available.

In Honduras I assisted the Association of Small Entrepreneurs for the Construction of Hydro-Electric Power Plants in the restructuring of the business sector.