CHP - BEE4750

By cornell university (educationl)


Functional unit
Parameter
Value
Functional unit
kWh
Parameter
Applicability
range
Hellisheiði data
Your value
Unit
Description
CO2 in geofluid
0.0012 - 0.0023
0.0014
kg/kg
CO2 directly emitted to air from geothermal production per kg Geothermal fluid extracted
Power output
200 - 500
303
MW
Electrical Machinery Capacity
Lifetime
20 - 30
30
Years
Lifetime of powerplant
Capacity factor
0.6 - 1.0
0.87
ratio
Capacity factor of power plant
Well depth
1394 - 3323
2242
meters
Average depth per well
Diesel use in drilling
1022 - 3632
2270
MJ
Amount of Diesel needed for operating of drill rig
Production wells
25 - 60
47
Number of
Number of wells drilled
Table 4
Standard Deviation* of simplified models
Impact category
* Standard deviation
Climate change
Freshwater and terrestrial acidification
Freshwater ecotoxicity
Human health - carcinogenic effects
Human health - non-carcinogenic effects
Resources - fossils
Resources - minerals and metals
*the standard deviation provided does not reflect the uncertainty of the estimated value, but the spread in the results when doing a Monte Carlo simulation over the validity ranges of the simplified models' parameters.
Table 5
Your results
Impact category
Value
Unit
Functional unit
Climate change
kg CO2-Eq
kWh electric
Freshwater and terrestrial acidification
mol H+-Eq
kWh electric
Freshwater ecotoxicity
CTUe
kWh electric
Human health - carcinogenic effects
CTUh
kWh electric
Human health - non-carcinogenic effects
CTUh
kWh electric
Resources - fossils
MJ
kWh electric
Resources - minerals and metals
kg Sb-Eq
kWh electric
Median results of the reference LCA model relative to your results
Simplified models results using the case-study data, relative to your results
Reference model comparison
Simplified model comparison (Generalized)