Research and analysis

Use of high carbon North American woody biomass in UK electricity generation

Study commissioned in spring 2015 to assess the likelihood of the high carbon scenarios identified in the Bioenergy Emissions and Counterfactual (BEAC) model occurring now or in the future

Documents

Full technical report

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Executive summary

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Summary report

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Analysis tool guide

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Analysis tool part 1 of 4

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Analysis tool part 2 of 4

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Analysis tool part 3 of 4

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Analysis tool part 4 of 4

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Summary of comments on the likelehood of the BEAC scenarios

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Comments on questionnaire - parts 1 and 3

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Details

In July 2014, DECC published the Bioenergy Emissions and Counterfactual (BEAC) model, which investigates the impact on carbon emissions of various ways of sourcing woody biomass from North America to produce electricity in the UK. The calculator estimates the greenhouse gas intensity by taking into account the counterfactual land use for the scenario (i.e. what the land or wood would have been used for if it was not used for bioenergy). BEAC shows that some scenarios could save considerable carbon emissions compared to fossil fuels, whilst if others occurred they could cause emissions greater than fossil fuels. BEAC did not assess the likelihood of particular scenarios so, in spring 2015, DECC commissioned an independent study (led by Ricardo-AEA and including North American forestry experts) to assess the likelihood that the most carbon intensive BEAC scenarios are happening now or if they might happen in the future, and what might drive or constrain them.

The study found that the majority of the high carbon scenarios identified in the BEAC report are unlikely to occur, but there are four that may be already happening or may happen in the future, although their scale is likely to be limited or uncertain.

The research identified economic decision making as driving forestry practices: the main value of a tree is in sawtimber, not biomass for wood pellet production. It is therefore unlikely that demand for biomass would cause foresters to change behaviour to harvest sooner than they intended, or to switch to supplying wood for bioenergy, but they may increase the intensity with which they manage forests.

The full technical report, a short executive summary, a longer summary report and an analysis tool, which summarises responses from stakeholders to a questionnaire on forestry practices, can be downloaded from this page.

Published 8 March 2017