Price tag for troubled SAP project will skyrocket to nearly $1 billion, audit says

Some groups within National Grid raised questions about "problems with system and company readiness" before the switchover to the new system, but "that information was subsumed by a push to go live," according to the audit.

Even now, National Grid is failing to take full advantage of the SAP system's capabilities, relying on "complex Excel spreadsheets" for management reporting, it states.

A Wipro spokesman didn't immediately respond to a request for comment Friday.

"We recognize the challenges National Grid faced and have worked continuously with the customer to address them," SAP spokesman Andy Kendzie said in an emailed statement Friday.