Preliminary Technical Risk Analysis for the Geothermal Technologies Program

McVeigh, Jane; Cohen, J.H.; Vorum, M.; Porro, Gian; Nix, G. A.

doi:10.2172/901249

Cited by 4 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite its importance, risk management in HT-ATES has not been addressed by past research activities, yet. Risk related research was focusing on direct geothermal utilization, addressing only specific risks such as induced seismicity (Trutnevyte & Azevedo, 2018;Mignan et al, 2015;Trutnevyte & Wiemer, 2017;Knoblauch & Trutnevyte, 2018), exploration risks (Siler et al, 2017;Robertson-Tait et al, 2015) or well integrity (Southon, 2005;McVeigh et al, 2007;Lentsch & Schubert, 2013). This was also stated by Lohne et al (2016b), who reviewed 54 studies in the course of the project " EU Horizon 2020 GeoWell".…”

Section: Introductionmentioning

confidence: 99%

Risk analysis of High-Temperature Aquifer Thermal Energy Storage (HT-ATES)

Fleuchaus

Schüppler

Bloemendal

et al. 2020

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Risk analysis of High-Temperature Aquifer Thermal Energy Storage (HT-ATES)

Fleuchaus

Schüppler

Bloemendal

et al. 2020

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

“…Without the exploration data, McVeigh assumed the mass flow rate as 54 kg/s based on the current hydraulic fracture technology (McVeigh, et al, 2007). Augustine assumed the flow rate as 30 kg/s and 60 kg/s for the current and improved technology scenario (Augustine, et al, 2010).…”

Section: Near Hydrothermal Egs Resourcesmentioning

confidence: 99%

Investigating Continuously Updated History Matching Using Smart Proxy (Surrogate Reservoir Model)

He¹

View full text Add to dashboard Cite

Geothermal energy is a globally distributed sustainable energy with the advantages of a stable base load energy production with a high capacity factor and zero SO x , CO, and particulates emissions. It can provide a potential solution to the depletion of fossil fuels and air pollution problems. The geothermal district heating and cooling system is one of the most common applications of geothermal energy, and consists of geothermal wells to provide hot water from a fractured geothermal reservoir, a surface energy distribution system for hot water transmission, and heating/cooling facilities to provide water and space heating as well as air conditioning for residential and commercial buildings. To gain wider recognition for the geothermal district heating and cooling (GDHC) system, the potential to develop such a system was evaluated in the western United States, and in the state of West Virginia. The geothermal resources were categorized into identified hydrothermal resources, undiscovered hydrothermal resources, near hydrothermal enhanced geothermal system (EGS), and deep EGS. Reservoir characteristics of the first three categories were estimated individually, and their thermal potential calculated. A cost model for such a system was developed for technical performance and economic analysis at each geothermally active location. A supply curve for the system was then developed, establishing the quantity and the cost of potential geothermal energy which can be used for the GDHC system. A West Virginia University (WVU) case study was performed to compare the competiveness of a geothermal energy system to the current steam based system. An Aspen Plus model was created to simulate the year-round campus heating and cooling scenario. Five cases of varying water flow rates and temperatures were simulated to find the lowest levelized cost of heat (LCOH) for the WVU case study. The model was then used to derive a levelized cost of heat as a function of the population density at a constant geothermal gradient. By use of such functions in West Virginia at a census tract level, the most promising census tracts in WV for the development of geothermal district heating and cooling systems were mapped. This study is unique in that its purpose was to utilize supply analyses for the GDHC systems and determine an appropriate economic assessment of the viability and sustainability of the systems. It was found that the market energy demand, production temperature, and project lifetime have negative effects on the levelized cost, while the drilling cost, discount rate, and capital cost have positive effects on the levelized cost by sensitivity analysis. Moreover, increasing the energy demand is the most effective way to decrease the levelized cost. The derived levelized cost function shows that for EGS based systems, the population density has a strong negative effect on the LCOH at any geothermal gradient, while the gradient only has a negative effect on the LCOH at a low population density.

show abstract

Decision paths to reduce costs and increase economic impact of geothermal district heating in Geneva, Switzerland

Pratiwi

Trutnevyte

2022

Applied Energy

View full text Add to dashboard Cite

Preliminary Technical Risk Analysis for the Geothermal Technologies Program

Cited by 4 publications

References 0 publications

Risk analysis of High-Temperature Aquifer Thermal Energy Storage (HT-ATES)

Risk analysis of High-Temperature Aquifer Thermal Energy Storage (HT-ATES)

Investigating Continuously Updated History Matching Using Smart Proxy (Surrogate Reservoir Model)

Decision paths to reduce costs and increase economic impact of geothermal district heating in Geneva, Switzerland

Contact Info

Product

Resources

About