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Temperature and pressure data from permanently installed sensors behind production casing in well RN-15/DEEPEGS/IDDP-2, Iceland

Within the H2020 project DEEPEGS, pressure and temperature gauges were installed behind production casing of well RN-15/DEEPEGS/IDDP-2. Here, we publish the available data gathered from cementing the production casing in 2016 until the end of the DEEPEGS project in 2020. 8 thermocouples were installed behind casing at 329.3 m (TC8), 629.3 m (TC7), 929.3 m (TC6), 1529.3 m (TC5), 1829.3 m (TC4), 2129.3 m (TC3), 2329.3 m (TC2) and 2629.3 m (TC1) depths. In addition, a pressure and temperature gauge was installed at 1229.3 m depths (ERE p/T). All depth are measured depth (MD) below ground level. During installation TC3 was damaged. During cementation, all other TCs as well as the ERE gauge were operating. After the end of drilling, subsequently all TCs except TCs 7 & 8 failed. Until April 2020, data can only be reported for the two remaining thermocouples 7 & 8. Before publication, data was manually cleaned for obvious erroneous readings. Therefore, gaps in the data are inevitable and the readings are not fully continuous.

Interactive webapp for techno-economic analysis of the cost competitiveness of blue and green hydrogen

This interactive webapp can be used to reproduce figures from an accompanying article by the same authors that studies the cost competitiveness of blue and green hydrogen. Some of the key assumptions (e.g. methane leakage, electricity prices, electrolyser CAPEX, gas prices) can be changed here when generating the figures. We employ techno-economic and life-cycle assessments to compute the levelised costs and greenhouse-gas intensities of competing production technologies for blue (from natural gas with CCS) and green (from renewable electricity via electrolysis) hydrogen. This allows us to determine fuel-switching CO2 prices (FSCPs), defined by the carbon price at which fuels with lower emissions become cost competitive with fuels with higher emissions. Using these metrics, the presented figures compare the cost, greenhouse-gas intensities, and resulting FSCPs of competing fuels and technologies over the studied time range (2025 to 2050). These figures allow us to study whether and when green hydrogen becomes cost competitive with blue hydrogen. Our results demonstrate that the long-term competitiveness of blue hydrogen and its viability as a bridging option crucially depend on natural-gas prices and on residual emissions (non-captured CO2, upstream supply-chain CH4 and CO2). For more advanced changes and detailed information on the input data and methodology, we encourage users to inspect the article, its supplement, and the source code written in Python.

Interactive webapp for exploring techno-economic landscapes of abatement options for hard-to-electrify sectors

This interactive webapp reproduces the main results from an accompanying article by the same authors, which explores the most cost-efficient abatement options for the hard-to-electrify (HTE) sectors (chemical feedstocks, long-distance maritime and aviation, primary steel and cement). Some of the main assumptions used in the study can be modified here, following which a techno-economic analysis is carried out to determine the levelized cost of each product or service, for all available abatement options available. The abatement costs are then calculated, and plotted for different low-emission hydrogen and non-fossil CO2 cost assumptions, building the mitigation landscape for each HTE sector. Our results demonstrate a diverse mitigation landscape that can be categorized into three tiers, based on the abatement cost and technologies required. By requiring long-term climate neutrality through simple conditions, the mitigation landscape narrows substantially, with single options dominating each sector. For more detailed information on this study, we refer users to the Supplementary Information file provided with the study, and the original software used

Data from distributed temperature sensing (DTS) measured along a fiber optic cable permanently installed behind casing in well RN-15/DEEPEGS/IDDP-2, Iceland

The fiber optic cable was installed down to 832 m behind the production casing of a 9 5/8" (445-2932 m) and 9 7/8" (0 - 445 m) production casing in well RN-15/DEEPEGS/IDDP-2 in the Reykjanes geothermal field, SW Iceland (depth reference: surface). Fiber optic distributed temperature data was acquired (campaign based) during cementation (09/2016) of the production casing, at the end of the cold fluid injection (09/2018) as well during the onset of well stimulation (10/2019-04/2020).

Data from distributed temperature sensing (DTS) measured along a fiber optic cable permanently installed behind casing in well RN-15/DEEPEGS/IDDP-2, Iceland

The fiber optic cable was installed down to 832 m behind the production casing of a 9 5/8" (445-2932 m) and 9 7/8" (0 - 445 m) production casing in well RN-15/DEEPEGS/IDDP-2 in the Reykjanes geothermal field, SW Iceland (depth reference: surface). Fiber optic distributed temperature data was acquired (campaign based) during cementation (09/2016) of the production casing, at the end of the cold fluid injection (09/2018) as well during the onset of well stimulation (10/2019-04/2020).

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