Lars Gunnar Furelid Tellnes

• Andersson, Gunnar; Johansen, Frode Ramstad; Hauge, Bjørn Gitle; Torgersen, Mirielle; Tellnes, Lars G. F. & Valter, Per (2024). Co-creating a Learning Community - Teaching Sustainability in Higher Education. International Journal of Advanced Corporate Learning. ISSN 1867-5565. 17(1), s. 61–73. doi: 10.3991/ijac.v17i1.42753.
• Tellnes, Lars Gunnar Furelid; Koch, Christian; Torgersen, Mirielle & Kjøniksen, Anna-Lena (2023). Value capture from low embodied emissions of buildings - a business model innovation perspective. IOP Conference Series: Earth and Environmental Science (EES). ISSN 1755-1307. 1196. doi: 10.1088/1755-1315/1196/1/012096.
• Resch, Eirik; Wiik, Marianne Rose Kjendseth ; Tellnes, Lars G. F.; Andresen, Inger; Selvig, Eivind & Stoknes, Stein (2022). FutureBuilt Zero - A simplified dynamic LCA method with requirements for low carbon emissions from buildings. IOP Conference Series: Earth and Environmental Science (EES). ISSN 1755-1307. 1078(1). doi: 10.1088/1755-1315/1078/1/012047. Fulltekst i vitenarkiv
• Johnsen, Fredrik Moltu & Tellnes, Lars Gunnar Furelid (2022). Verification of Environmental Product Declarations (EPDs) – how strict should it be? E3S Web of Conferences. ISSN 2267-1242. doi: 10.1051/e3sconf/202234908002.
• Maniak-Huesser, Martyna; Tellnes, Lars G. F. & Zea Escamilla, Edwin (2021). Mind the gap: A policy gap analysis of programmes promoting timber construction in nordic countries. Sustainability. ISSN 2071-1050. 13(21), s. 1–14. doi: 10.3390/su132111876.
• Tellnes, Lars G. F.; Saxegård, Simon Alexander & Johnsen, Fredrik Moltu (2020). Cross-laminated timber constructions in a sustainable future – transition to fossil free and carbon capture technologies. IOP Conference Series: Earth and Environmental Science (EES). ISSN 1755-1307. doi: 10.1088/1755-1315/588/4/042060.
• Tellnes, Lars G. F. & Rønning, Anne (2019). Modelling options for module C and D: Experiences from 50 EPD for wood-based products in Norway. IOP Conference Series: Earth and Environmental Science (EES). ISSN 1755-1307. 323(1). doi: 10.1088/1755-1315/323/1/012052.
• Tellnes, Lars G. F.; Alfredsen, Gry; Flæte, Per Otto & Gobakken, Lone Ross (2019). Effect of service life aspects on carbon footprint: a comparison of wood decking products. Holzforschung. ISSN 0018-3830. doi: 10.1515/hf-2019-0055. Vis sammendrag

  Carbon footprint over the life cycle is one of the most common environmental performance indicators. In recent years, several wood material producers have published environmental product declarations (EPDs) according to the EN 15804, which makes it possible to compare the carbon footprint of product alternatives. The objective of this study was to investigate the effect of service life aspects by comparing the carbon footprint of treated wood decking products with similar performance expectations. The results showed that the modified wood products had substantially larger carbon footprints during manufacturing than preservative-treated decking materials. Replacement of modified wood during service life creates a huge impact on life cycle carbon footprint, while maintenance with oil provided a large contribution for preservative-treated decking. Hence, service life and maintenance intervals are crucial for the performance ranking between products. The methodological issues to be aware of are: how the functional unit specifies the key performance requirements for the installed product, and whether full replacement is the best modeling option in cases where the decking installation is close to the end of the required service life.

• Tellnes, Lars G. F.; Ganne-Chedeville, Christelle; Dias, Ana Cláudia; Dolezal, Franz; Hill, Callum Aidan Stephen & Escamilla, Edwin Zea (2017). Comparative assessment for biogenic carbon accounting methods in carbon footprint of products: a review study for construction materials based on forest products. iForest : Biogeosciences and Forestry. ISSN 1971-7458. 10(5), s. 815–823. doi: 10.3832/ifor2386-010. Vis sammendrag

  The forest and building sector is of major importance in climate change mitigation and therefore construction materials based on forest products are of great interest. While energy efficiency has had a large focus in climate change mitigation in the building sector, the carbon footprint of the construction material is gaining relevance. The carbon footprint of construction materials can vary greatly from one type to another, the building sector is consequently demanding documentation of the carbon footprint of the materials used. Using an environmental product declaration (EPD) is an objective and standardised solution for communicating the environmental impacts of construction products and especially their carbon footprint. Nevertheless, it is challenging to include the features of forest products as pools of carbon dioxide. There is currently a focus on research into methods for the accounting of sequestered atmospheric carbon dioxide and also implementation of these methods into technical standards. This paper reviews the recent research and technical standards in this field to promote a common understanding and to propose requirements for additional information to be included in EPDs of forest-based products. The main findings show the need for reporting the contribution of biogenic carbon to the total on greenhouse gas emissions and removals over the product’s lifecycle. In order to facilitate the implementation of more advanced methods from research, the EPD should also include more detailed information of the wood used, in particular species and origin.

• Tellnes, Lars G. F.; Ross, Lone; Flæte, Per Otto & Alfredsen, Gry (2014). Carbon footprint including effect of carbon storage for selected wooden facade materials. Wood Material Science & Engineering. ISSN 1748-0272. doi: 10.1080/17480272.2014.904432.

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• Tellnes, Lars Gunnar Furelid; Kjøniksen, Anna-Lena & Pamies, Ramon Francisco Porras (2023). Life cycle assessment of tunicate burger.
• Tellnes, Lars Gunnar Furelid; Pamies, Ramon Francisco Porras; Kjøniksen, Anna-Lena & Næss, Johann K (2023). Declaring environmental performance with reuse and recycling business approaches for small and medium sized enterprises.
• Tellnes, Lars Gunnar Furelid; Koch, Christian; Torgersen, Mirielle & Kjøniksen, Anna-Lena (2023). Value capture from low embodied emissions of buildings a business model innovation perspective.
• Tellnes, Lars Gunnar Furelid & Kjøniksen, Anna-Lena (2023). Metrics for absolute environmentally sustainable foods – case on tunicate burger.
• Tellnes, Lars Gunnar Furelid; Wu, Hong & Kjøniksen, Anna-Lena (2023). LCA for circular business model – five step method and experiences from Norway.
• Tellnes, Lars Gunnar Furelid; Andersson, Gunnar & Kjøniksen, Anna-Lena (2023). Three perspectives of LCA for business models innovation – case studies on rental of products.
• Tellnes, Lars G. F.; Næss, Johann Kristian; Kjøniksen, Anna-Lena & Ross, Lone (2023). Carbon footprint of reused and recycled wood products.
• Tellnes, Lars Gunnar Furelid & Kjøniksen, Anna-Lena (2022). Perspectives of evaluating product service systems with life cycle assessment a case study on power tool rental.
• Kjøniksen, Anna-Lena & Tellnes, Lars Gunnar Furelid (2022). Action case studies as method for industrial work integrated learning.
• Andersson, Gunnar; Johansen, Frode Ramstad; Hauge, Bjørn Gitle; Torgersen, Mirielle; Tellnes, Lars G. F. & Valter, Per (2022). Co-creating a learning community on sustainability.
• Resch, Eirik; Andresen, Inger; Eivind, Selvig; Wiik, Marianne Rose Kjendseth ; Tellnes, Lars G. F. & Stoknes, Stein (2021). Promoting climate neutral urban areas – FutureBuilt zero method to measure compliance in pilot projects. The 10th International Conference on Life Cycle Management 5th – 8th September 2021. LCM 2021. Vis sammendrag

  In the past 12 years, more than 50 FutureBuilt pilot projects have shown that it is possible to reduce greenhouse gas emission from transport, energy and materials for the built environment. The FutureBuilt programme supports climate friendly urban development in Norway’s capitol city Oslo and surrounding municipalities (Bærum, Asker, Drammen, Nordre Follo and Lillestrøm). All projects have until now been required to perform carbon footprint calculations and to reduce emissions by 50% compared to a reference common practice. Followng the political ambitions to further reduce greenhouse gas emissions, the FutureBuilt criteria has been updated to reflect these, with the development of a scheme called FutureBuilt ZERO. The FutureBuilt ZERO method is based on the Norwegian standard for carbon footprint calculations of buildings (NS 3720), but has taken a more forward looking approach. The method is taking into account expected future developments in society related to carbon footprint aspects that has often been left out in common carbon footprint practice. It includes contributions to greenhouse gas emission of direct and indirect emissions from operational energy, manufacturing, and transport of materials, related to building construction, operation, maintenance and end-of-life. In common carbon footprint of buildings, scenarios for maintenance and end-of-life of buildings are often assessed based on current practice. However, in the FutureBuilt ZERO method, the changes in technology and policy have been taking into account for adjusting emission factors. Other aspects that are often left out in common practice such as biogenic carbon, time-dependent characterisation factors, carbonatization of concrete, design for reuse and exported energy, are also included. The process to take into account such aspects requires input from several experts and the presentation will bring forward some of the aspects that has been deliberated in the making of the method.

• Tellnes, Lars; Nore, Kristine & Rønning, Anne Ragnhild (2020). Options for climate change performance indicators for cross-laminated timber.
• Tellnes, Lars G. F.; Saxegård, Simon Alexander & Johnsen, Fredrik Moltu (2020). Cross-laminated timber constructions in a sustainable future – transition to fossil free and carbon capture technologies.
• Tellnes, Lars & Rønning, Anne Ragnhild (2019). Modelling options for module C and D: Experiences from 50 EPD for wood-based products in Norway.
• Tellnes, Lars G. F.; Soldal, Ellen & Johnsen, Fredrik Moltu (2019). Allocation and land use in LCA of forestry case study on beech wood thinning.
• Tellnes, Lars G. F. & Rønning, Anne (2019). Completeness of inventories for environmental product declarations (EPD).
• Næss, Johann Kristian; Nyrud, Anders Q. & Tellnes, Lars G. F. (2019). Greenhouse gas emissions from forestry – silvicultural measures about models for allocation.
• Tellnes, Lars G. F. (2018). Declaring life cycle inventory of toxicity related emissions in environmental product declarations of preservative treated wood products.
• Tellnes, Lars G. F. & Iversen, Ole Magnus Kålås (2018). Online tool for generating Environmental Product Declarations (EPD-tool) for modified wood products.
• Tellnes, Lars G. F. & Nore, Kristine (2018). Environmental performance of construction stage for glue and cross laminated timber.
• Tellnes, Lars G. F.; Alfredsen, Gry; Flæte, Per Otto & Gobakken, Lone Ross (2018). Carbon footprint of decking materials – a comparison of modified and preservative treated wood.
• Tellnes, Lars G. F. (2018). Hosting PCR Workshop.
• Rønning, Anne; Lyng, Kari-Anne Kallerud; Brekke, Andreas; Soldal, Ellen; Vold, Mie & Iversen, Ole Magnus Kålås [Vis alle 9 forfattere av denne artikkelen] (2017). Status harmonisation EN15804 and PEF.
• Tellnes, Lars G. F.; Ganne-Chedeville, Christelle; Dias, Ana Cláudia; Dolezal, Franz; Hill, Callum Aidan Stephen & Zea Escamilla, Edwin (2017). Review of biogenic carbon in carbon footprint of modified wood.
• Booto, Gaylord Kabongo; Tellnes, Lars G. F. & Brekke, Andreas (2021). OR.50.21 Triple Panel Buildings bærekraftsvurdering - forprosjekt. Norsus. ISSN 978-82-7520-882-6.
• Valente, Clara; Tellnes, Lars G. F. & Callewaert, Peter Guido (2021). OR.46.21 Waste 2 Power (W2P) – high value energy recovery of plastic waste. Norsus. ISSN 978-82-7520-878-9.
• Booto, Gaylord Kabongo; Tellnes, Lars G. F. & Silva, Mafalda (2020). NEPD-2588-1315 Flügger 04 Wood Tex Opaque. EPD-Norge.
• Booto, Gaylord Kabongo; Tellnes, Lars G. F. & Silva, Mafalda (2020). NEPD-2589-1315 Flügger 02 Wood Tex Primer. EPD-Norge.
• Booto, Gaylord Kabongo; Tellnes, Lars G. F. & Silva, Mafalda (2020). NEPD-2590-1315 Flügger 05 Wood Tex Acryl 30. EPD-Norge.
• Booto, Gaylord Kabongo; Tellnes, Lars G. F. & Silva, Mafalda (2020). NEPD-2591-1315 Flügger 06 Wood Tex Oil Paint W 60. EPD-Norge.
• Booto, Gaylord Kabongo; Tellnes, Lars G. F. & Silva, Mafalda (2020). NEPD-2592-1315 Flügger Window. EPD-Norge.
• Resch, Eirik; Andresen, Inger; Selvig, Eivind; Wiik, Marianne Rose Kjendseth ; Tellnes, Lars G. F. & Stoknes, Stein (2020). FutureBuilt ZERO metodebeskrivelse. Futurebuilt. Fulltekst i vitenarkiv
• Tellnes, Lars G. F. & Johnsen, Fredrik Moltu (2020). NEPD-2369-1107-NO Malt listverk av furu. EPD-Norge.
• Johnsen, Fredrik Moltu & Tellnes, Lars G. F. (2020). NEPD-2368-1107-NO Lakkert listverk av eik. EPD-Norge.
• Tellnes, Lars G. F. & Johnsen, Fredrik Moltu (2020). NEPD-2370-1107-NO Ubehandlet listverk av furu. EPD-Norge.
• Tellnes, Lars G. F. & Johnsen, Fredrik Moltu (2020). NEPD-2371-1107-NO Malt dørsett av furu. EPD-Norge.
• Tellnes, Lars G. F. & Johnsen, Fredrik Moltu (2020). NEPD-2372-1107-NO Malt panel av furu. EPD-Norge.
• Tellnes, Lars G. F. & Johnsen, Fredrik Moltu (2020). NEPD-2373-1107-NO Malt utforing av furu. EPD-Norge.
• Tellnes, Lars G. F. & Prestrud, Kjersti (2019). OR.37.19 Klimagassberegninger MH Arctic - Byggseksjoner. Materialbruk, levetid og energi til oppvarming. Østfoldforskning AS. ISSN 978-82-7520-819-2.
• Brekke, Andreas & Tellnes, Lars G. F. (2019). OR.06.19 Screening LCA of SCP from boreal forest. Østfoldforskning AS. ISSN 978-82-7520-803-1.
• Brekke, Andreas; Saxegård, Simon Alexander; Nilsen, Mona & Tellnes, Lars G. F. (2018). OR.26.18 The climate impact of taking one’s own cabin on holiday. A greenhouse gas account for motorhomes . Østfoldforskning AS. ISSN 978-82-7520-785-0.
• Brekke, Andreas; Saxegård, Simon Alexander; Nilsen, Mona & Tellnes, Lars G. F. (2018). OR.25.18 Hvor klimavennlig er det å ta med seg hytta på ferie? Et klimagassregnskap for bobiler. Østfoldforskning AS. ISSN 978-82-7520-784-3.
• Tellnes, Lars G. F. & Rønning, Anne (2018). OR.13.18 Klimagassregnskap Lislebyhallen. Et byggeprosjekt med klimaambisjoner. Østfoldforskning AS. ISSN 978-82-7520-779-9.
• Tellnes, Lars; Lyng, Kari-Anne Kallerud; Valente, Clara; Modahl, Ingunn Saur & Johnsen, Fredrik Moltu (2017). Erstatningsmaterialer for torv. Kartlegging av klima- og miljøeffekter. Østfoldforskning AS. ISSN 978-82-7520-767-6. Vis sammendrag

  Torv benyttes i dag som dyrkingsmedium og i jordforbedringsprodukter. Uttak av torv medfører utslipp av klimagasser og påvirker leveområdene til planter og dyr. Ved en eventuell utfasing av torv er det viktig at bruken av andre materialer representerer en reell miljøforbedring. Denne rapporten er skrevet på oppdrag fra Miljødirektoratet, og tar for seg klima- og miljøeffekter av ulike materialer som erstatning for bruk av torv i dyrkingsmedier og jordforbedringsprodukter. Studiet omfatter materialene steinull, perlitt, biprodukter fra kokosproduksjon, bark, trefiber, kompost og avvannet biorest, biokull og ull fra husdyr. Studien ble gjennomført ved hjelp av en litteraturgjennomgang, søk i databaser og noen forenklede beregninger basert på tall funnet i litteraturen for å etterstrebe at resultatene er mest mulig relevante for norske forhold.

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