Post Implementation Reviews for 2026–31 Regulatory Proposal

This document is a technical report that provides a summary of post implementation reviews (PIRs) for major ICT projects conducted during the 2021–26 regulatory period. It outlines the necessity of conducting PIRs as mandated by the Australian Energy Regulator (AER) for significant ICT projects completed in the past five years. The report includes comparisons of actual costs, timeframes, and benefits against the forecasts provided in the business cases. The PIRs cover various projects, including end user device replacement, market compliance, Windows 10 upgrade, Oracle Fusion upgrade, improved gateway services, field service management system replacement, and five-minute settlements. Each project is detailed with its respective costs, schedules, and achieved benefits, highlighting any material variations from the proposed plans. The report serves to ensure transparency and accountability in the management of ICT investments and compliance with regulatory requirements.