Forestry Statistics 2012 - Sources

Sources: Timber

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Woodfuel and pellets

Introduction

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 (www.woodrecyclers.org).

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.

Figures are published as UK totals.

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 (www.forestry.gov.uk/pdf/pellet11q.pdf/$FILE/pellet11q.pdf) 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 2011 survey of UK pellet and briquette production was sent to a total of 22 companies that were believed to manufacture pellets or briquettes. A total of 10 responded, giving a response rate of 45%. The respondents to the survey are estimated to account for around 92% of the total production of pellets and briquettes in the UK in 2011.

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.

Quality

Detailed information on the pellet survey quality is available in the "Quality Report: Survey of UK Pellet & Briquette Production" at www.forestry.gov.uk/pdf/ukpelletqrpt.pdf/$FILE/ukpelletqrpt.pdf.

Further quality information on FC Official Statistics is available at: www.forestry.gov.uk/forestry/infd-7zhk85

Revisions

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

Figures for 2011 are final; provisional figures were previously released in "UK Wood Production and Trade: 2011 provisional figures".

The wood pellet and briquette production figure for 2011 has been revised upwards by 2% from the figure previously released, as a result of late returns and final data checks.

Figures for earlier years have not been revised from those provided in "UK Wood Production and Trade: 2011 provisional figures". Information on revisions made since "Forestry Statistics 2011" are provided in "UK Wood Production and Trade: 2011 provisional figures".

Further information

Figures for Woodfuel Demand and Usage in Scotland, covering actual and potential use of woodfuel in the commercial, industrial and electrical energy sectors, are produced annually and available at www.forestry.gov.uk/forestry/infd-7tdhjn

Release schedule

Provisional figures for 2012 will be released on 16 May 2013 in "UK Wood Production and Trade: 2012 provisional figures".

Final figures for 2012 will be released on 26 September 2013 in "Forestry Statistics 2013" and "Forestry Facts & Figures 2013". 

Links to Forestry Statistics 2012