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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 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 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.

More information on the survey of UK pellet and briquette production, including copies of the questionnaires sent to businesses in recent years, can be found at www.forestry.gov.uk/forestry/infd-94ukb2.

Response rates

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

The 2015 survey of UK pellet and briquette production was sent to a total of 18 companies that were believed to manufacture pellets or briquettes. A total of 5 responded, giving a response rate of 28%. The respondents to the survey are estimated to account for around 82% of the total production of pellets and briquettes in the UK in 2015.

Whilst the low response rates to this survey are of some concern, it is believed that many of the non-respondents are not (currently) producing pellets or briquettes. This is reflected in the much higher weighted response rates and the figures produced are believed to give a reasonable estimate of the true level of UK pellet production.

Survey of UK Pellet & Briquette Production Response Rates, 2009-2015

Year Forms issued Response received Response rate1 Weighted
Response rate2
2009 33 17 52% 89%
2010 27 12 44% 95%
2011 22 10 45% 92%
2012 21 5 24% 75%
2013 18 8 44% 91%
2014 18 6 33% 91%
2015 18 5 28% 82%

Notes:

1. Response rates are calculated as the number of responses received divided by the number of forms issued.

2. Weighted response rates are an estimate of the proportion of total UK pellet and briquette production that is accounted for by respondents.

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 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 2015 are final; provisional figures were previously released in “UK Wood Production and Trade: 2015 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 by Forestry Commission Scotland and available at http://scotland.forestry.gov.uk/supporting/strategy-policy-guidance/climate-change-renewable-energy/woodfuel-and-bio-energy.

The Department for Business, Energy and Industrial Strategy (previously the Department of Energy and Climate Change) publishes an annual Digest of UK Energy Statistics (www.gov.uk/government/collections/digest-of-uk-energy-statistics-dukes). Chapter 7 of this digest covers renewable sources of energy including wood. Figures for wood use in renewable energy statistics take into account wood from all sources (including processed wood, recycled wood and imports), not just UK-grown roundwood.

Release schedule

Provisional figures for 2016 will be released on 18 May 2017 in “UK Wood Production and Trade: 2016 provisional figures”.

Final figures for 2016 will be released on 28 September 2017 in “Forestry Statistics 2017” and “Forestry Facts & Figures 2017”.

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