Light materials: Cadmium telluride, a semiconductor that’s good at absorbing light, can be used to make inexpensive solar panels. GE has confirmed long-standing speculation that it plans to make thin-film solar panels that use a cadmium- and tellurium-based semiconductor to Read More …

International Seminar on Biomass Implementation in Bulgaria Feasibility study for construction of central heating plant on wood biomass in Bansko, Bulgaria Haskovo, organized by USAID Presentations