Delayed Invoicing and Billing Disputes in PPA Reconciliation

Ambiguous or poorly evidenced curtailment and availability records result in under-recovery of deemed energy and other PPA entitlements, with potential annual revenue loss in the $150k–$500k range per large wind site, plus month-end disputes that extend receivable days and increase reliance on credit facilities. • Collections on disputed or adjusted invoices are frequently delayed 60–120 days, creating a structural working-capital drag of $1M–$5M for a mid-sized IPP portfolio, while cumulative under-billing, misapplied caps/floors, or missed true-ups can erode 1–3% of gross margin (roughly $200k–$600k per $20M of affected PPA revenue). • Delayed settlement and disputed volumes routinely push collection 30–90 days beyond terms, tying up hundreds of thousands of dollars in working capital across a portfolio (e.g., $250k–$1M in receivables aged due to PPA reconciliation disputes), while manual errors and missed retroactive adjustments can cause 0.5–2% annual revenue leakage (for a $20M revenue portfolio, roughly $100k–$400k per year).

Downloading meter and market data into CSV, aggregating in complex Excel workbooks with custom macros, manually checking purchaser statements line by line, tracking disputes in color-coded spreadsheets and long email chains, and using ad hoc notes to remember which periods are pending retest or correction. • Exporting meter data from SCADA or utility portals into Excel, manually reconstructing 180-day histories, emailing spreadsheets and PDF invoices back and forth with offtakers, tracking disputes and audit questions in shared files and email threads, and using calendar reminders or personal notes to follow up on overdue or short-paid invoices. • Keeping dispatch instructions and curtailment events in separate logs (Excel or operator notes), then manually matching them to meter data and invoices; when a dispute arises, the coordinator reconstructs timelines from emails, SCADA screenshots, and saved spreadsheets to prove that curtailments or availability conditions match PPA terms.