Presently, Renewable and Alternative Energy Development Plan for 10 years (AEDP 2012-2021) has promoted by Thai government with the purpose to increasing the renewable energy utilization. The utilization of biomass as fuel for heat and power production is becoming increasingly important. Eucalyptus is one of the fast growing trees biomass that provides wood to paper factory in Thailand. Moreover, some Eucalyptus plantations have been planted to supply biomass power plants with solid biomass. Eucalyptus is considered as efficient biomass feed stock for energy conversion. Demand source of energy from Eucalyptus wood is continuously increasing. Therefore, the objectives of this work is to assess the potential for power generation from agricultural residues, i.e., Eucalyptus growing on paddy field embankment at Rangbua sub-district, Chombueng district, Ratchaburi province. Two scenarios are to estimate with the assumption that the plant efficiency of power generation was around 18% and plant factor of 80%, which could be operated to 292 days per year. The result showed that all Eucalyptus growing on paddy field embankment were supplied to biomass power plants with solid biofuel (100%). This scenario had the biomass potential for power plant with capacity of around 4.0 MWe. Next Eucalyptus wood was supplied to paper factory and its residues of 20% was then use to generate electricity. This scenario had also the biomass potential for a small power plant with capacity of around 0.8 MWe.