Fig. 10From: Life cycle impacts of ethanol production from spruce wood chips under high-gravity conditionsComparison of total renewable and non-renewable energy use for production of ethanol and by-products from wood and straw. a shows the total renewable energy (REU), and b the total non-renewable energy (NREU) used by a process configuration for the production of 1 L of ethanol. The inset graphs show the results for all of the process configurations. In blue, the enlarged area depicted in the main graph is indicatedBack to article page