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Update Commercial, Residential battery cost assumptions#833

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mjprilliman merged 7 commits into
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batt_atb_fixedcost_updates
Dec 1, 2021
Merged

Update Commercial, Residential battery cost assumptions#833
mjprilliman merged 7 commits into
developfrom
batt_atb_fixedcost_updates

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Description

Based on discussions about the ATB cost optimization procedures, the fixed $ cost for commercial and residential battery systems does not change for changing system sizes (only changes for change in economy of scale). To be more consistent with this implementation, the default cost values were changed to use the $/kW inputs from the ATB and by adding the fixed $ cost to Engineering and developer overhead fixed costs. The % of indirect cost attributed to battery cost was updated for each configuration to allocate the correct $ amount of fixed cost to the battery system for combined systems.

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Type of change

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  • Bug fix (non-breaking change which fixes an issue)
  • This change requires a documentation update

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If you have added a new compute module in a SSC pull request related to this one, be sure to check the Process Requirements.

  • My code follows the style guidelines of this project
  • I have performed a self-review of my own code
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  • I have made corresponding changes to the documentation
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ATB $ figures, adjusted $/kW inputs and % indirect battery costs
accordingly
@janinefreeman janinefreeman removed their request for review December 1, 2021 22:44
@brtietz

brtietz commented Dec 1, 2021

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@cpaulgilman @janinefreeman - We're running into some trouble with commercial systems here: the ATB only presents stand alone commercial (no hybrids), and the underlying report (https://www.nrel.gov/docs/fy21osti/77324.pdf) presents a system size roughly twice as big as the default in SAM. What's an acceptable fudge factor on the total installed cost (either as a percent or in $/Wdc)?

@mjprilliman mjprilliman merged commit 84e46ce into develop Dec 1, 2021
@cpaulgilman cpaulgilman added the added to release notes PR and/or issue has been added to release notes for a public release label Dec 2, 2021
@brtietz brtietz deleted the batt_atb_fixedcost_updates branch December 7, 2021 16:48
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