Time-dependent climate impact of biomass use in a fourth generation district heating system, including BECCS

Hammar, Torun; Levihn, Fabian

doi:10.1016/j.biombioe.2020.105606

Cited by 23 publications

(11 citation statements)

References 30 publications

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“…As a result, the respiratory inorganics impact category was reduced from 45 to 64%, depending on the considered climatic area, with a biomass-based district scenario compared to an isofuel standalone option. This is also in line with the conclusions drawn in [73].…”

Section: Conclusion and Discussionsupporting

confidence: 93%

“…However, the carbon neutrality principle cannot be systematically used when considering the source of biomass. To account for the biogenic carbon dynamic, a time-dependent LCA can be performed wherein yearly fluxes are considered [73]. This paper highlighted the need of ensuring the sustainability of biomass sourcing and advises using a GWP biogenic that can be calculated from the forest rotation supplying the district heating plant.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Life Cycle Assessment of District Heating Systems in Europe: Case Study and Recommendations

Jeandaux¹,

Videau²,

Prieur‐Vernat³

2021

Sustainability

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District heating systems are a way to integrate renewable energies into the heating sector, with the primary aim of decarbonizing this final use. In such systems, renewable energy sources are centrally managed with cutting-edge technological equipment, efficient maintenance rates and service guarantees. Both the decarbonization effect and the centralization lead to environmental benefits, which can go beyond the climate change indicator. In this study, life cycle assessment was used to assess the environmental sustainability of district heating solutions compared to standalones. The study aimed to examine a diverse set of options for large-scale district heating systems across Europe and to compare them to different standalone solutions. Eight technologies (five district-level and three standalone solutions) were analyzed in two densities of habitats and four areas of Europe. This study aimed to understand the drivers of district heating environmental performance and to provide guidelines for accounting said performance. The analysis showed better performance for district heating scenarios compared to isotechnology standalones for every environmental impact category: the climate change impact category were reduced from 5 to 90%, while respiratory inorganics were reduced from 45 to 64%, depending on the considered climatic area. This statement was true under key parameters, both technical and methodological—efficiencies and complement rates, but also the neutral carbon principle for biomass energy accounting and allocation rules.

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Section: Conclusion and Discussionsupporting

confidence: 93%

Section: Conclusion and Discussionmentioning

confidence: 99%

Life Cycle Assessment of District Heating Systems in Europe: Case Study and Recommendations

Jeandaux¹,

Videau²,

Prieur‐Vernat³

2021

Sustainability

View full text Add to dashboard Cite

show abstract

“…In the former case, LCAs focus on comparing power generation technologies and fuels [16][17][18][19][20], whereas the influence of the co-combustion ratio is studied in the latter case [21][22][23]. Hammar and Levihn's [24] work is an exception in that the influence of a new cogeneration plant is investigated. As in the other bioenergy LCAs, only permanent storage of CO2 is considered, excluding carbon utilization and temporary storage from the study scope.…”

Section: Existing Lcas On Bccusmentioning

confidence: 99%

Biomass-Origin Carbon Capture, Storage and Utilization in Greenhouses: The Co2serre Project in Centre-Val De Loire (France)

et al. 2021

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“…A system perspective can integrate five major aspects, by: (i) including climate effects of biogenic carbon which are still mostly considered neutral (Røyne et al, 2016), that is, carbon sequestration via photosynthesis equals the eventual carbon emission along the life cycle (Head et al, 2019); (ii) accounting for substitution (energy substitution [ES], material substitution [MS]) effects of the wood use (Garcia et al, 2020), which is associated with great uncertainties, especially for emerging HWPs (Leskinen et al, 2018); (iii) cascading use of wood, which occurs when “wood is processed into a product and this product is used at least once more either for material or energy purpose” (EC, 2016a), making cascading a potential means to improve the climate performance of a HWP system (Thonemann & Schumann, 2018); (iv) including sufficient sensitivity analysis for the HWP system assessed, for example, in terms of changing substituted future marginal energy mixes (Hammar & Levihn, 2020); and (v) applying climate metrics appropriate for accounting for time dynamic effects of GHG emissions and sequestrations (Helin et al, 2013; Levasseur et al, 2010), to compensate for the shortcomings of commonly used static climate metrics such as global warming potential (GWP) in terms of time‐dependent accounting (Breton et al, 2018). Examples of such metrics are the GWP bio (Cherubini et al, 2011), the time‐dependent radiative forcing (RF) (Sathre & Gustavsson, 2012), or the absolute global temperature change potential (AGTP) (Myhre et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Time dynamic climate impacts of a eucalyptus pulp product: Life cycle assessment including biogenic carbon and substitution effects

et al. 2021

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The forest sector can play a pivotal role in mitigating climate warming by decreasing emissions to the atmosphere and increasing carbon removals. In an expanding bioeconomy, the pulp and paper industry provides opportunities for various low‐carbon wood products with promising substitution effects. However, assessing climate effects of wood product systems is complex and requires a holistic approach. The objective of this study was to advance time dynamic climate impact assessment of a bioeconomically promising wood product from a system perspective. For this purpose, a time dynamic life cycle assessment was conducted on a pulp‐based beverage carton. The assessment included fossil value chain emissions from cradle to grave, effects from biogenic carbon in a eucalyptus plantation, and credits from substitution. A polyethylene terephthalate (PET) bottle was considered for material substitution (MS) and differing marginal electricity and heat mixes for energy substitution. The results revealed dominating climate warming from value chain emissions and slight offsetting by biogenic carbon from standing biomass and soil organic carbon, and short‐term carbon storage in the beverage carton. MS and displacing marginal energy mixes transformed the climate warming into a substantial total cooling effect. However, substitution effects varied strongly in terms of substitution factors and temperature change with varying replacement rate of the beverage carton and different marginal energy mixes. A climate cooling range of −0.8 · 10−15 to −1.8 · 10−15 K per unit of beverage carton by 2050 was found, highlighting potential relevance for climate policy making. Thus, production and use of wood‐based beverage cartons over PET bottles can have climate cooling effects. Further assessments on alternative forestry systems (e.g., Nordic forests) are needed to identify the role of biogenic carbon in holistic climate assessments, with dynamic substitution effects included to increase the validity.

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Time-dependent climate impact of biomass use in a fourth generation district heating system, including BECCS

Cited by 23 publications

References 30 publications

Life Cycle Assessment of District Heating Systems in Europe: Case Study and Recommendations

Life Cycle Assessment of District Heating Systems in Europe: Case Study and Recommendations

Biomass-Origin Carbon Capture, Storage and Utilization in Greenhouses: The Co2serre Project in Centre-Val De Loire (France)

Time dynamic climate impacts of a eucalyptus pulp product: Life cycle assessment including biogenic carbon and substitution effects

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