Just wrapped up a power factor case that turned into a nice payday. Manufacturing client in Charlotte was getting hit with power factor penalties on Duke's Schedule LGS for 28 months. Total penalties were $156,780. The issue was their billing system wasn't properly accounting for power factor correction equipment that was installed but temporarily offline for maintenance. Duke was penalizing them during scheduled maintenance windows when the correction wasn't working. Anyone seen similar issues where utilities don't account for legitimate equipment downtime?
Duke Energy power factor penalty reversal - $156K recovery
Derek, that's a great angle I hadn't considered. Down here with Oncor in Dallas, we see power factor penalties but I've never thought to look at whether maintenance downtime should be excluded. How did you document that the equipment was legitimately offline for maintenance versus just broken?
Marcus, the client had detailed maintenance logs showing scheduled downtime for capacitor bank servicing. The key was proving it was planned maintenance, not equipment failure. Duke's tariff actually has provisions for excluding "force majeure" events but they interpret that very narrowly.
Derek, did Duke fight you on this or were they reasonable once you showed them the maintenance documentation? I'm dealing with APS here in Arizona on a power factor issue and they're being very rigid about their penalty calculations.
Sarah, they pushed back initially but their own engineers confirmed the equipment was functioning properly outside the maintenance windows. I think the key was showing a clear pattern - power factor was good 90% of the time, only bad during documented maintenance periods.
This is brilliant Derek! I've got a client with Georgia Power who does quarterly maintenance on their power factor correction equipment. Never thought to challenge the penalties during those periods. What section of Duke's tariff covers the force majeure provisions?
Rachel, look at Section 7.3 of their LGS schedule. It's buried in the fine print but it does allow for "circumstances beyond customer control." The trick is getting them to interpret scheduled maintenance as qualifying. Had to escalate to their regulatory affairs department.
Derek, fantastic work! I'm curious about the timeline on this. How long from when you identified the issue until you got the refund check? I'm working on a similar power factor case with PSE up here in Washington.
David, about 4 months total. Two months to gather documentation and build the case, two months for Duke to review and approve the refund. They were actually pretty efficient once they understood the issue. The maintenance logs were the key - without those we would have had no case.
Derek, this gives me an idea for a case I'm working on with Ameren Missouri. Client has power factor issues but they do have regular maintenance schedules. Going to dig into their maintenance records and see if there's a pattern. Thanks for sharing the approach!
This thread is gold! Derek, one question - did the client have to modify their maintenance procedures going forward, or was Duke satisfied with just the refund and continued standard maintenance practices?
Connie, Duke required them to provide advance notice of scheduled maintenance that might affect power factor. Basically a 48-hour heads up so the utility can exclude those periods from penalty calculations. Reasonable compromise that protects both sides.
Derek, excellent case study! This is exactly the kind of creative thinking that separates successful auditors from the pack. I'm going to start reviewing all my power factor penalty cases to see if maintenance scheduling is a factor. $156K is serious money for what many would consider a "routine" penalty situation.
Thanks Terry! The lesson for me was to always dig deeper into the "why" behind penalty charges. Most auditors accept power factor penalties as legitimate without questioning the circumstances. Sometimes there are valid reasons the power factor was temporarily poor that should be excluded from penalty calculations.