09-07-2026, 03:58 PM
(This post was last modified: 09-07-2026, 08:09 PM by Antti-L.
Edit Reason: typo
)
Ok, thanks.
> Is there somewhere I can see what exactly is driving this gap?
Yes. See the file VT_OBLONG_DEM.xlsx, sheet DMDDemands, cell H4. There you specifically define a Zero value for NCAP_ILED. Using NCAP_ILED causes the technology to be modeled according to 2.a/2.b, i.e. with interest during construction included. You can see half year's interest being added to the objective function, which is in fact consistent accounting (although reporting it with/without it may be debatable). The difference between OBLONG YES/NO is that without OBLONG, the original standard assumptions are used, where NCAP_ILED has also a thershold before being applied, and therefore it falls back to cases 1.a/1.b if zero.
For an immediate remedy, I suggest to remove the NCAP_ILED(s), either directly or by TS filtering.
> Is there somewhere I can see what exactly is driving this gap?
Yes. See the file VT_OBLONG_DEM.xlsx, sheet DMDDemands, cell H4. There you specifically define a Zero value for NCAP_ILED. Using NCAP_ILED causes the technology to be modeled according to 2.a/2.b, i.e. with interest during construction included. You can see half year's interest being added to the objective function, which is in fact consistent accounting (although reporting it with/without it may be debatable). The difference between OBLONG YES/NO is that without OBLONG, the original standard assumptions are used, where NCAP_ILED has also a thershold before being applied, and therefore it falls back to cases 1.a/1.b if zero.
For an immediate remedy, I suggest to remove the NCAP_ILED(s), either directly or by TS filtering.