Eestisse kavandatud puidurafineerimistehase olelusringipõhise süsiniku jalajälje hindamine

The report evaluates a proposed wood biorefinery in Estonia with a projected capacity of 750,000 tonnes per year. Using the CEPI methodology, the study finds that the plant would have a negative fossil carbon footprint of -0.39 tonnes of CO2-e per tonne of finished product, primarily because the renewable electricity it exports to the grid replaces oil shale-based power. The plant is also estimated to sequester 1.3 tonnes of biogenic CO2-e per tonne of product. Compared to a 'zero scenario' where wood is exported to Nordic countries, the project is expected to reduce Estonia's overall greenhouse gas emissions by approximately 1.6% and increase the share of renewable electricity in national consumption to 26%.

• The proposed biorefinery is estimated to have a negative fossil carbon footprint of -388.30 kg CO2-e per tonne of finished product (cellulose). While the production process and transport generate 55.71 kg of fossil CO2-e per tonne, the export of renewable electricity to the grid avoids 444.01 kg of CO2-e per tonne by replacing oil shale electricity.
• The plant's biogenic carbon footprint is also negative, enabling the sequestration of 1.3 tonnes of biogenic CO2-e per tonne of finished product. This is calculated as the difference between the carbon stored in the wood products (1.6 tonnes) and the biogenic CO2 emitted during renewable energy production (0.33 tonnes).
• On an annual basis, the facility is projected to reduce fossil CO2 emissions in Estonia by approximately 291,000 tonnes, which represents about 1.6% of Estonia's 2015 total greenhouse gas emissions of 18 million tonnes.
• The project would significantly increase the share of renewable electricity in Estonia's total consumption. By adding 682 GWh of renewable electricity (of which 255 GWh is exported to the grid), the share of renewable electricity in consumption would rise from 18% (2016 level) to 26%.
• Compared to a 'zero scenario' where wood is exported to Finland and Sweden, the proposed plant would reduce transport-related fossil CO2 emissions by approximately one-third. This reduction is attributed to a higher use of rail transport (1/3 of volume), shorter distances for wood from Northern Latvia, and the elimination of ship transport to Nordic countries.
• The plant's raw material requirements—approximately 3.3 million cubic metres of wood per year—can be met using existing harvest volumes in Estonia and Northern Latvia without increasing total harvest levels, meaning the plant's impact on forest carbon sequestration is estimated at zero.

APA

Piirsalu, E. (2017). Eestisse kavandatud puidurafineerimistehase olelusringipõhise süsiniku jalajälje hindamine. Stockholm Environment Institute. https://www.sei.org/wp-content/uploads/2018/03/estfor-puidurafineerimistehase-susiniku-jalajalje-uuringu-aruanne.pdf

Chicago

Piirsalu, Evelin. Eestisse kavandatud puidurafineerimistehase olelusringipõhise süsiniku jalajälje hindamine. Stockholm Environment Institute, 2017. https://www.sei.org/wp-content/uploads/2018/03/estfor-puidurafineerimistehase-susiniku-jalajalje-uuringu-aruanne.pdf.

Wikipedia

{{cite report |last1=Piirsalu |first1=Evelin |title=Eestisse kavandatud puidurafineerimistehase olelusringipõhise süsiniku jalajälje hindamine |publisher=Stockholm Environment Institute |date=2017 |url=https://www.sei.org/wp-content/uploads/2018/03/estfor-puidurafineerimistehase-susiniku-jalajalje-uuringu-aruanne.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{piirsalu2017eestisse, author = {Piirsalu, Evelin}, title = {{Eestisse kavandatud puidurafineerimistehase olelusringipõhise süsiniku jalajälje hindamine}}, institution = {Stockholm Environment Institute}, year = {2017}, url = {https://www.sei.org/wp-content/uploads/2018/03/estfor-puidurafineerimistehase-susiniku-jalajalje-uuringu-aruanne.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }