1. A social cost-benefit analysis of biogas technologies using rice straw and water hyacinths as feedstock
Jan Bentzen, Ngo Thi Thanh Truc, Tran Sy Nam

2. Small-scale single stage downdraft biomass gasifier with shaking grate mechanism
Mary Grace Aguinaldo Rubio, Kitipong Jaojaruek

3. Investigation of pv and wind hybrid system for building rooftop
Wichai Pettongkam, Wirachi Roynarin, Decha Intholo

4. Energy saving patterns of personnel behaviour in malaysian office
Mohd Hafizal Ishak, Md Fauzi Ahmad, Mohamad Azuan Aziz Satar, Kee Lee Ting

5. Optimization design procedure of a radial impulse turbine in owc system
Khalid Elatife, Abdellatif El Marjani

6. Web-based system design to monitor and control the mismatching effects in a vast solar farm
Ahmed Jabbar Abid, Adel A. Obed, Fawzi M. Al-Naima

7. Opportunities, challenges and risks of transition into renewable energy: the case of the arab gulf cooperation council
Saad Darwish, Hafez Abdo, Wael Mohammad AlShuwaiee

8. The role of renewable energy in co2 mitigation from power sector in cambodia
Chhay Lyheang, Bundit Limmeechokchai

9. Energy-saving analysis of a hybrid-power gas engine heat pump with continuously variable transmission
Tao Chen, Liang Cai