Generator Efficiency Incr

Units:	MW/MW
Mode:	Input Only
Multi-band:	True
Default Value:	1
Validation Rule:	Any Value
Key Property:	No
Description:	Efficiency of hydro generation

Generator Efficiency Incr is the incremental efficiency of hydro generation. It is combined with Load Point in multiple bands to define an efficiency function across the range of generation. The 'no-load efficiency' is defined using Efficiency Base.

Example (using metric units) The purpose of this example is to show you how PLEXOS calculates Efficiency by given table 1. Picture 1, 2 and 4 is the process result of calculation.

Property	Value	Units	Band
Units	1	-	1
Max Capacity	60	MW	1
Load Point	20	MW	1
Load Point	40	MW	2
Load Point	60	MW	3
Efficiency Base	58	cumec	1
Efficiency Incr	0.5	MW/cumec	1
Efficiency Incr	0.48	MW/cumec	2
Efficiency Incr	0.42	MW/cumec	3

Figure 1: Example Hydro Efficiency Curves (metric)

Example (using imperial US units)

Property	Value	Units	Band
Efficiency Base	169	AF	1
Efficiency Incr	171	kWh/AF	1
Efficiency Incr	164	kWh/AF	2
Efficiency Incr	144	kWh/AF	3

Figure 2: Example Hydro Efficiency Curves (imperial)