The paper presents results obtained from a much elaborated stakeholders' assessment on potential of sustainable energy technologies conducted in Thailand. It also gives an overview of the status of clean development mechanism (CDM) portfolio in Thailand. The stakeholders from different sectors were contacted during the research and their feedbacks on potential of different technologies under CDM were discussed through a series of bilateral interviews. With the few selected technologies suitable in the context of CDM opportunities in Thailand, the sustainability benefits and barriers to their implementation are also discussed in detail. The suggestions provided by the stakeholders in overcoming a few key barriers are also given in the paper. (C) 2008 Elsevier Ltd. All rights reserved.