Describe the bug
-For GETEM cases with Resource temperature < 150 degC, capacity factor is sometimes resulting in capacity factor values greater than 1. This is due to a mismatch of second law efficiency calculations in the code triggered by resource temperature < 150 (lib_geothermal.cpp line 1488).

To Reproduce
Steps to reproduce the behavior:

1. Go to Geothermal Single Owner case
2. Change resource temperature to 120, plant output to 3288.1985 KW
3. Simulate
4. See error in capacity factor

Expected behavior
Capacity factor should never be greater than 1.

Additional context
Found during rev testing.
@ppinchuk