Update CSP financial defaults#904
Merged
Merged
Conversation
* Clean up battery dispatch UI forms Click through battery dispatch forms for PV Battery, Generic Battery, Standalone Battery, and Fuel Cell and try all options to fix any problems with callbacks or messages for FOM (Single Owner) and BTM (Commercial) * Change dispatch group labels to match radio button choices * Fix dispatch choice callback error for non-fuel cell techs * Clean up custom weather file inputs * Fix variable group names and labels for variable browsers * Fix labels for BTM peak shaving load growth * Fix UI checks on fuel cell and battery manual dispatch Also, disable "charge battery from fuel cell" check boxes when battery is disabled.
* remove tax incentive and switch financing debt mode * update etes default capacity payment, ppa price, and debt terms * update test results for new ETES defaults
Collaborator
Author
|
FYI @cpaulgilman |
tyneises
pushed a commit
that referenced
this pull request
Jan 28, 2022
This reverts commit 9a1deef.
Collaborator
Author
|
closes #862 |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
This commit updates CSP financial defaults for the PPA financial models. The 2021.12.02 release switched the financial solution mode from specifying an IRR target and calculating the PPA price to specifying the PPA price and calculating the IRR target. We did not review the default PPA input when we made this switch, and the release default value of 13 cents/kWh results in unrealistically large IRRs. For each CSP technology, we reset the first year PPA price to a value that results in an IRR close to 7%. We also set the default Buy Rate on the Electricity Purchases page to the first year PPA price, although this input is not used in the default case. Similarly, we set the default IRR target to 7%, although this input is not used in the default case.
The release also allowed the default DSCR debt method to calculate unlimited project debt, which caused aggressive/optimistic cases to have very large IRRs as the debt fraction approached 100% and an undefined IRR as the debt fraction grew to >= 100%. For all CSP cases, we set the default maximum debt fraction in the DSCR method to 60%.
Finally, for the "Partnership Flip with Debt" and "Partnership Flip without Debt" PPA financial models, we changed the IRR target year in the Physical Trough, Molten Salt Power Tower, and Generic CSP model to 9 years to be consistent with these inputs in other technology models.