1. Load distribution of heat source in production of heat and electricity
Pavel Navratil, Libor Pekar, and Jindrich Klapka

2. Environmental impact analysis of solar power generation process using multicrystalline and amorphous silicon solar cells in thailand
Wasin Khaenson, Somchai Maneewan and Chantana Punlek

3. How solar and wind powers can complement each other in spatial-temporal dimensions? - an empirical study in china's hubei province
Liping Ding, Xinxin Xu, Jing Shuai and Chuanmin Shuai

4. Yearly energetic and exergetic performance of solar absorption refrigeration system in the region of northern sudan
Osman Wageiallah Mohammed and Guo Yanling