Siting enhanced geothermal systems (EGS): Heat benefits versus induced seismicity risks from an investor and societal perspective

Knoblauch, Theresa A.K.; Trutnevyte, Evelina

doi:10.1016/j.energy.2018.04.129

Cited by 36 publications

(15 citation statements)

References 59 publications

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“…With respect to CCS, for example, Krause et al (2014) showed that 20% of the original proponents of a technology changed their minds after such a project was promoted in their neighborhood. Knoblauch and Trutnevyte (2018) also showed for deep geothermal energy that projects should be sited in remote areas, where the risk of induced seismicity is reduced, and the project is more accepted. The measure traffic light system is not perceived as particularly effective in comparison to the other mitigation measures.…”

Section: Risk Mitigation Perceptionmentioning

confidence: 99%

The Neglected Role of Risk Mitigation Perception in the Risk Governance of Underground Technologies—The Example of Induced Seismicity

Haemmerli

Stauffacher

2020

Int J Disaster Risk Sci

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Subsurface technologies, such as geothermal energy and carbon capture and storage, are options to help limit global warming. Subsurface technologies involve the risk of induced seismicity. The successful implementation of these technologies depends on the public perception of these risks. Risk governance frameworks propose assessing the level of public concern and designing adapted risk mitigation measures. We propose that concerns should not only be investigated with respect to the perceived risks but also with respect to the potential mitigation measures. We explore this by analyzing the perception of risk mitigation measures for different subsurface technologies. With an online survey (N = 808) in Switzerland we analyzed four technologies (in-between subject design) and four mitigation measures (within subject design). We found that risk mitigation measures are perceived differently, within and across technologies. Thus, public concerns about risk mitigation really matter. We suggest that future research should focus on how risk mitigation measures can be applied and communicated to realize the full potential of risk governance frameworks.

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Section: Risk Mitigation Perceptionmentioning

confidence: 99%

The Neglected Role of Risk Mitigation Perception in the Risk Governance of Underground Technologies—The Example of Induced Seismicity

Haemmerli

Stauffacher

2020

Int J Disaster Risk Sci

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“…The strategy puts a strong focus on developing alternative renewable electricity infrastructure, and geothermal is framed as a source of baseload electricity because of the ability of geothermal power plants to produce electricity continuously and in stable quantities. The exclusive focus placed on electricity production was later challenged in economic analyses which showed that without the additional heat benefit DGE would not become profitable in the Swiss context (Hirschberg et al., 2015; Knoblauch & Trutnevyte, 2018). In addition, the use of excess heat as well allows for a lowering of CO 2 emissions; heat produced by DGE can replace fossil fuels (Menberg, Pfister, Blum, & Bayer, 2016).…”

Section: Geothermal Energy In Switzerlandmentioning

confidence: 99%

Entanglement of Top-Down and Bottom-Up: Sociotechnical Innovation Pathways of Geothermal Energy in Switzerland

Ejderyan

Ruef

Stauffacher

2019

The Journal of Environment & Development

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By looking at deep geothermal energy in Switzerland, this article illustrates how innovation pathways in federal countries take entangled forms between top-down and bottom-up. The Swiss federal government presents deep geothermal energy as an important technology to decarbonize electricity production. Setbacks in early projects have slowed these efforts. Despite strong policy incentives from the federal government, no electricity is being produced from geothermal projects in Switzerland in 2019. Based on four case studies, we analyze how some cantons and cities have taken different pathways: Rather than implementing federal objectives, they favor heat production instead of electricity generation. The relative success of these initiatives led federal authorities to modify their approach to promoting geothermal energy. This study shows that federal mechanisms and instruments alone are not enough to make energy infrastructures acceptable locally. To learn from bottom-up experiences and adapt federal policies to local reality, better coordination between the federal and subnational levels is needed.

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“…The operation time of the EGS was set to 20 years based on computational model. The circulating fluid will lose a part and need to be replenished, which fluid loss rate was assumed to 8% . The cost of maintenance referred to pump, pipe network, and others.…”

Section: Economic Analysis Of Heatingmentioning

confidence: 99%

“…The induced microseism hazard was usually defined by stratigraphic structure, exposure, and vulnerability of buildings to evaluate risks . The annual occurrence probability of induced seismicity (IS) was derived in operation and creation based on hazard intensity . There were many large faults in the study area, and the natural earthquakes will occur in a certain probability (Figure ).…”

Section: Economic Analysis Of Heatingmentioning

confidence: 99%

“…The different operation scenarios were optimized to find a high‐production model based on complex TH coupling in Soultz EGS . The life‐cycle assessment, energy consumption, and induced seismicity risks also were considered for heat benefits in EGS. In addition, the software packages were proposed to estimate and simulate EGS costs, and new cost elements (environmental effect) should be calculated .…”

Section: Introductionmentioning

confidence: 99%

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Economic analysis of heating for an enhanced geothermal system based on a simplified model in Yitong Basin, China

Huang

Zhang

et al. 2019

Energy Science & Engineering

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Yitong Basin is located in subfrigid zone, and it has a good prospect to use geothermal clean heating. The evaluation of economic efficiency for heating with enhanced geothermal system (EGS) is indispensable. A simplified single‐fracture hydrothermal coupling model with laboratory test is developed in the EGS project to calculate temperature and pressure based on Yitong Basin data. The effects of four factors (K, q, D, and T) on heat production and reservoir characteristics are discussed. The parameters and results of H‐T coupling were applied to economic analysis for heating with EGS from private and social perspectives considering costs and revenues. The results indicate that the combination of laboratory tests (rock physical properties) makes the numerical simulation results more suitable for the study area. The production temperature and heating power will decrease with continuous injection of cold water, and the injection pressure and flow impedance will increase due to the increase in μ/ρ. Four factors (K, q, D, and T) will affect difficulty of fluid injection and reservoir thermal breakthrough, and the high injection rate q may trigger secondary fracturing of reservoir. Heating with EGS in single‐fracture model was uneconomical due to expensive drilling costs. However, heating with EGS can be considered from social perspective based on environment, which can provide advice for decision‐making of the government and business.

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Siting enhanced geothermal systems (EGS): Heat benefits versus induced seismicity risks from an investor and societal perspective

Cited by 36 publications

References 59 publications

The Neglected Role of Risk Mitigation Perception in the Risk Governance of Underground Technologies—The Example of Induced Seismicity

The Neglected Role of Risk Mitigation Perception in the Risk Governance of Underground Technologies—The Example of Induced Seismicity

Entanglement of Top-Down and Bottom-Up: Sociotechnical Innovation Pathways of Geothermal Energy in Switzerland

Economic analysis of heating for an enhanced geothermal system based on a simplified model in Yitong Basin, China

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