Hi Paul,
I have read the description of SAM's LCOE calculation in Help. Of course according to the definition there, the electricity rates have no effect.
However I change them, the LCOE changes and the difference is proportional to the changes. Here is an example with the same settings as before:
Net Billing
buy ($/kWh) | sell ($/kWh) | LCOE (ct/kWh) | Difference / (price_sell or price_buy) |
0 | 0 | 4.31173 | |
1 | 0 | 4.44457 | 0.13284 |
10 | 0 | 5.64012 | 0.13284 |
0 | 1 | 3.61287 | 0.69886 |
0 | 10 | -2.67685 | -0.69886 |
I made the buying and selling prices from the grid extreme for demonstration, and the only change was the price rates.
The equations used in SAM help are the same ones used in the Excel spreadsheets, if I was to export the Cash flow results to excel with equation, the LCOE becomes just like described in Help. But in data tables single values and in summary it is clearly different.
So I wonder where that comes from. I tried moving the changes to the numerator of the LCOE equation assuming the values in (kWh) but got the following values: 265.47 kWh and -1396 kWh, I assumed the rates were multiplied with some energy but the values also do not represent anything.
I would really appreciate any help :)
Best regards,
Mustafa.