Lists every utility bill uploaded to the project, newest first, with a fresh presigned file_url for each. The download URLs expire after 24 hours; re-call this endpoint (or Retrieve Utility Bill) to refresh them.
Last-parse-wins semantics. Only the most recently parsed bill feeds the project's load profile and consumption data. Older bills returned by this endpoint are historical artifacts — they remain in storage but are not currently being used by Aurora to compute consumption. This matches the in-app utility bill upload UI, which only ever displays the most recent upload.
Because parse jobs run asynchronously and are not strictly FIFO, sort order (created_at descending) reflects upload time, not parse-completion time. Upload bills one at a time — wait for each utility_bill_upload_job_completed webhook before starting the next upload — to keep the active bill predictable.