2W Permian Solar, LLC (PERM) notified Texas RE that it was noncompliant with FAC-008-3 R6. Specifically, PERM’s Facility Ratings were not consistent with its documented Facility Rating methodology because PERM’s battery energy storage system was not considered as part of the total generator output. PERM discovered this issue on September 2, 2021, as a result of a review of its internal compliance documentation. On September 22, 2021, PERM documented revised Facility Ratings, which did not result in a change in the identified most limiting series element and did not change the overall Facility Rating.
Root Cause
The root cause of this issue was an insufficient process for calculating Facility Ratings. Specifically, PERM’s Facility Ratings methodology and documented process did not clearly communicate to PERM’s engineering vendor that the battery energy storage system should be considered to be a generator for the purpose of the methodology, and the Facility Ratings created by the vendor were not sufficiently verified by PERM personnel until September 2021.
Cookie | Duration | Description |
---|---|---|
cookielawinfo-checkbox-analytics | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics". |
cookielawinfo-checkbox-functional | 11 months | The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". |
cookielawinfo-checkbox-necessary | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". |
cookielawinfo-checkbox-others | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. |
cookielawinfo-checkbox-performance | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance". |
viewed_cookie_policy | 11 months | The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data. |