Add variable OpEx
Elenya's PR #222 contained a neat introduction to variable OpEx.
This is especially useful for cases where costs vary year-to-year, such as feedstock consumption.
Proposed solution
We currently only consider OpEx as a singular entity and do not differentiate between fixed and variable OpEx.
We could separate these ideas out and change the existing OpEx to total OpEx (or similar) once we introduce the subtypes of OpEx.
To correctly handle variable OpEx that varies year-to-year, we will need to change the way the financial calculations are done as they assume in some places that what happens for one year happens across the project lifetime.
Alternatives considered
Additional context
Add variable OpEx
Elenya's PR #222 contained a neat introduction to variable OpEx.
This is especially useful for cases where costs vary year-to-year, such as feedstock consumption.
Proposed solution
We currently only consider OpEx as a singular entity and do not differentiate between fixed and variable OpEx.
We could separate these ideas out and change the existing OpEx to total OpEx (or similar) once we introduce the subtypes of OpEx.
To correctly handle variable OpEx that varies year-to-year, we will need to change the way the financial calculations are done as they assume in some places that what happens for one year happens across the project lifetime.
Alternatives considered
Additional context