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Table 7 Input parameters defining the capital costs CCCH and current costs CCCCH of the compression chillers

From: Techno-economic and environmental analysis of an Aquifer Thermal Energy Storage (ATES) in Germany

Parameter Minimum Mode Maximum
Capital costs CCCH (€/kW)a, b, c 125 163 200
Feasibility (%)d   2.3  
Development (%)e   3  
Engineering (%)f   5  
Contingency (%)   10  
COP compression chiller COP b, gCCH 5 6 7
Maintenance MCCH (%)h   4  
Electricity costs EC (ct/kWh)i 16 16.5 17
Lifespan (years)j   15  
  1. aInstitut für Energie- und Umwelttechnik (2002), bSchäfer and Negele (2009), cSchlott (2001), dMacKenzie and Cusworth (2007), eQueensland Government (2015), fChiasson and Culver (2006), gEngie (2016), hHeinrich et al. (2014), iStindl (2017, personal communication,) jVDI 2067 (2012)