Thanks for the interesting question.

Let's focus on the 2011 case which worried you. I can see in your Excel file a row with the following entries:

Cost in UK TIMES 9.07597 <-- calculated here

I assume that this value is what you would also expect TIMES to generate? At least I can see it is the result of your Excel calculation.

I tested with a simple test model and with the parameters you have disclosed, and I got an objective coefficient 9.07597369 for the 2011 investment costs. It looks exactly the same value as in your Excel calculation, and so I can only conclude that I can see no difference to your calculation.

Could you please confirm that this is also the value you expected to see? If so, could you clarify how you expect me to be able to reproduce the problem you are seeing?

Let's focus on the 2011 case which worried you. I can see in your Excel file a row with the following entries:

Cost in UK TIMES 9.07597 <-- calculated here

I assume that this value is what you would also expect TIMES to generate? At least I can see it is the result of your Excel calculation.

I tested with a simple test model and with the parameters you have disclosed, and I got an objective coefficient 9.07597369 for the 2011 investment costs. It looks exactly the same value as in your Excel calculation, and so I can only conclude that I can see no difference to your calculation.

Could you please confirm that this is also the value you expected to see? If so, could you clarify how you expect me to be able to reproduce the problem you are seeing?