Economic analysis of Enhanced Geothermal Systems (EGS). A review of software packages for estimating and simulating costs

Olasolo, P.; Juárez, M.C.; Olásolo, J. Jaén; Morales, M.P.; Valdani, D.

doi:10.1016/j.applthermaleng.2016.05.073

Cited by 63 publications

(26 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The drilling cost for different borehole diameter intervals is presented in Budget Standard of Geological Survey Projects by China Geological Survey (https ://max. book1 18.com/html/2017/0903/13152 0083.shtm), but only 4 ranges (#1-4) of borehole diameter are given, and the depth range is 500-1000 m. In order to calculate the AEC of DBHE with a depth range of 500-3000 m, the drilling cost of other depth is calculated by the relation between well depth and drilling cost (Daniilidis et al 2017;Heidinger 2010;Olasolo et al 2016), as shown in Table 1. The borehole diameter intervals of #1-4 are 201-250 mm, 251-300 mm, 301-350 mm, 351-400 mm, respectively.…”

Section: Optimization Methodsmentioning

confidence: 99%

Optimization of the utilization of deep borehole heat exchangers

et al. 2020

View full text Add to dashboard Cite

Based on the differences in burial depth, utilization mode, and storage medium, geothermal energy is usually divided into three types: shallow geothermal energy (0-200 m), medium-deep hydrothermal energy (200-3000 m), and hot dry rocks energy (> 3000 m) (Wang 2015). The China Geothermal Energy Development Report released in August 2018 shows that the shallow geothermal energy is the main method used in China for geothermal heating, which has been rapidly developed. The extent of hydrothermal heating is also increasing steadily. However, the development in the utilization of geothermal resources has some difficulties due to the large areas demanding of shallow geothermal energy and the uneven distribution of hydrothermal energy (Kong et al. 2014). Moreover, when utilizing the hydrothermal energy, reinjection of geothermal wastewater must be carried out for maintaining the pressure of geothermal reservoirs (Rybach 2003). However, with a low reinjection rate, reinjection could be quite difficult in sandstone reservoirs (Kong et al. 2014; Su et al. 2018; Ungemach 2003). Therefore, deep-borehole heat exchangers (DBHE) have become an alternative approach to utilize geothermal

show abstract

Section: Optimization Methodsmentioning

confidence: 99%

Optimization of the utilization of deep borehole heat exchangers

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The reinjection pump was placed on the ground, which was easy to maintain. The lifetime of reinjection pump was generally 10 years . However, the production pump was usually placed hundreds of meters in wells, which was more difficult to maintain than injection pump.…”

Section: Economic Analysis Of Heatingmentioning

confidence: 99%

“…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 . Thus, economic analysis of heating for EGS can provide advice for decision‐making of the government and business.…”

Section: Introductionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

“…EURONAUT is implemented based on the studies conducted at the EGS plant in Soultz-sous-Forêts. The root of the program is economic estimation via discontinuous cash flows, and all other calculations are developed as separate modules that can be joined together via various interfaces [19]. GEOPHIRES, however, is a software tool that combines reservoir, wellbore, and power plant models with capital and operating costs, correlations, and financial levelized cost model to assess the technical and economic performance of EGS.…”

Section: Introductionmentioning

confidence: 99%

Multiple-Criteria Decision-Making for Assessing the Enhanced Geothermal Systems

et al. 2019

View full text Add to dashboard Cite

This paper presents the main features of a multiple-criteria decision-making tool for economic and environmental assessment of enhanced geothermal systems projects. The presented holistic approach takes into account important influencing factors such as technical specifications, geological characteristics, spatial data, energy and heat prices, and social and environmental impact. The multiple-criteria decision-making approach uses a weighted decision matrix for evaluating different enhanced geothermal systems alternatives based on a set of criterions which are defined and presented in this paper. The paper, defines and quantifies new criterions for assessing enhanced geothermal systems for a particular site. For evaluation of the relative importance of each criterion in decision making, the weight is associated with each of the listed criterions. The different scenarios of end-use applications are tested in the case study. Finally, in the case study, the data and statistics are collected from real geothermal plants. The case study provides results for several scenarios and the sensitivity analysis based on which the approach is validated. The proposed method is expected to be of great interest to investors and decision makers as it enables better risk mitigation.

show abstract

Economic analysis of Enhanced Geothermal Systems (EGS). A review of software packages for estimating and simulating costs

Cited by 63 publications

References 86 publications

Optimization of the utilization of deep borehole heat exchangers

Optimization of the utilization of deep borehole heat exchangers

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

Multiple-Criteria Decision-Making for Assessing the Enhanced Geothermal Systems

Contact Info

Product

Resources

About