Techno-economic assessment of biofuel development by anaerobic digestion of European marine cold-water seaweeds
2013
Dave, Aśoka | Huang, Ye | Rezvani, Sina | McIlveen-Wright, David | Novaes, Márcio | Hewitt, Neil
The techno-economic characteristics of macro-algae utilisation from European temperate zones was evaluated in a selected Anaerobic Digester (AD) using the chemical process modelling software ECLIPSE. The assessment covered the mass and energy balance of the entire process followed by the economic feasibility study, which included the total cost estimation, net present value calculation, and sensitivity analysis. The selected plant size corresponded to a community based AD of 1.6MWth with a macro-algae feed rate of 8.64tonnes per day (dry basis). The produced biogas was utilised in a combined heat and power plant generating 237kWenet electricity and 367kWth heat. The breakeven electricity-selling price in this study was estimated at around €120/MWh. On the ground of different national and regional policies, this study did not account for any government incentives. However, different support mechanisms such as Feed-in-Tariffs or Renewable Obligation Certificates can significantly improve the project viability.
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