krishnakanaparthi
commented
7 years ago Thank you for uploading the new solution files for PLEXOS. However, as seen from the MAGMA report from the Day-Ahead Solution (https://rawgit.com/GridMod/RTS-GMLC/master/RTS_Data/FormattedData/PLEXOS/PLEXOS_Solution/RTS_final_DA.html), the total Generation from Wind and Solar is 11,289.84GWh which is 30.8% of total Load (36689.6GWh).
The total Wind and Solar seems to quite high when compared to the previous commit on May 10th (SHA: 84a8848ec2466c312b6afd4d88f3fb5d8306394d) which was 5113 GWh (14% of total load). The reason is even with 14% of wind and solar penetration, no feasible solution is obtained for 342 hours out of 8760 (as shown below). In this case, only DC power flow was considered for obtaining the economic dispatch utilizing the Unit Commitment information provided.
@bennettmcbrendan, @claytonpbarrows.
Previously before June, the solution files that were provided had a total wind+solar (Utility+ Rooftop PV) of 5231.4 GWh. This is obtained by multiplying the respective commitment solution (PLEXOS_DA_solution_commitment.csv) with the generation file (PLEXOS_DA_solution_generation.csv) only for the wind+solar units. The following was the overall data analysis.
Total load energy 37655.8 [GWh] - DA_hourly.csv Area 1 load energy 12169.3 [GWh] Area 1 available wind+solar energy 2624.0 [GWh] Area 2 load energy 12188.7 [GWh] Area 2 available wind+solar energy 323.5 [GWh] Area 3 load energy 13297.9 [GWh] Area 3 available wind+solar energy 2281.7 [GWh]
This 5231.4 GWh, I understood to be reduced RE penetration scenario which was mentioned in your earlier comments. This used to provide a feasible optimal solution in our set up. However, some hours (low load conditions) were producing non-feasible solution.
In the update during first week of June, the total load energy provided in the 'DAY_AHEAD_regional_Load.csv' reduced to 36689.6 [GWh] and subsequently the total wind+solar energy also dropped to 5113 [GWh] although RE penetration remained the same to around 14%.
However, in the current update of the solution files, it seems all the wind and solar units have been committed resulting in a total available wind+solar energy of 12110 [GWh]. This is inspite of the total load energy still being 36689.6 [GWh]. This might not result in a feasible solution at all for all the hours. Therefore, could you please have a look and let us know if the Unit Commitment information in the solution file could be used.
Also, new PV units seem to have been added (e..g 101_PV_1, 101_PV_2, 101_PV_3, 101_PV_4) increasing the total number of generating units to 158. In the earlier case, the total number of units were 125. Can this be looked into as well?
Thanks, Krishna.