Forestry Statistics 2011 - Sources

Sources: Timber

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Woodfuel and pellets

Background

Data on woodfuel have been obtained from the following sources:

  • Sawmill survey and survey of round fencing manufacturers;
  • Private sector softwood removals survey and woodfuel suppliers;
  • Expert Group on Timber & Trade Statistics estimates.

Estimates of the quantity of recycled wood used for woodfuel are produced by the Wood Recyclers' Association.

Data on UK pellet production are obtained from the survey of UK pellet and briquette production.

For further details on roundwood deliveries for woodfuel, see the Sources: other deliveries page.

Data collected

The sawmill survey and survey of round fencing manufacturers included questions asking for the quantity of woodfuel:

  • sold to bioenergy,
  • sold as firewood and
  • used internally for heat/ energy.

All 3 questions have been included in the detailed sawmill survey (sent to sawmills believed to produce at least 10 thousand m3 sawnwood annually) for some time.  The sawmill survey (for smaller mills) was extended in the 2006 survey to cover quantities sold to bioenergy and again in the 2008 survey to cover firewood sales and use for heat/ energy.  All three questions were included in the round fencing survey for the first time in 2008 . 

The survey of UK pellet and briquette production was run for the first time for the collection of 2009 data.  The questionnaire asks for data on the total quantity of pellets and briquettes produced, the source of fibres used, the origin of wood used and product markets.

Response rates

Response rates for the sawmill survey and survey of round fencing manufacturers are available on the relevant sources pages.

The 2010 survey of UK pellet and briquette production was sent to a total of 27 companies that were believed to manufacture pellets or briquettes.  A total of 12 responded, giving a response rate of 44%.  The respondents to the survey are estimated to account for around 95% of the total production of pellets and briquettes in the UK in 2010.

Methodology

Details of the methodology used for the sawmill survey and survey of round fencing manufacturers are available on the relevant sources pages.

For the survey of UK pellet and briquette production, estimates were made for non respondents using results from previous surveys (including the 2008 woodfuel suppliers survey) and expert advice.

Revisions

All figures are subject to revision annually, as new information becomes available.

Reporting

Figures are published as UK totals.

For further information, see the quality report on the survey of UK pellet & briquette production.

Links to Forestry Statistics 2011

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