According to IRENA report, with a lower feedstock cost range of up to USD 6/GJ, the cost of bio-methanol is estimated to be in the range USD 320/t and USD 770/t, with the range influenced by differences in the specific projects – including differences in CAPEX, OPEX and conversion efficiency.
With process improvements, the cost range could be reduced to between USD 220/t and USD 560/t for the lower feedstock price range up to 6 USD/GJ, with a correspondingly higher range for the higher feedstock price range.
According to Pedersen and Schultz (2012), large scale methanol production is favoured by economy of scale and that large plants based on partial oxidation reforming yielded the lowest cost. The methanol production price was found in the range of 418-687 USD/ton.
Pedersen and Schultz (2012), Technical and Economic Assessment of Methanol Production from Biogas, Masters thesis, University of Aalborg, Denmark, Denmark.
The current production cost of e-methanol is estimated to be in the range USD 800-1 600/t assuming CO2 is sourced from BECCS at a cost of USD 10-50/t according to IRENA report.
https://www.irena.org/publications/2021/Jan/Innovation-Outlook-Renewable-Methanol