Found something odd at a plastics manufacturer in Ohio on AEP's GS-2 rate. They're clearly running three-phase equipment but getting billed as single-phase. Demand charges are way too low and there's no three-phase service charge. How do I approach AEP about this without creating a huge back-billing situation?
Member Community
Enter your email to read this discussion
You're reading the AAUBA Member Forum — where Certified Utility Bill Auditors share case studies, tariff strategies, and industry insights.
Free to read. Enter your email to continue.
No spam. We'll send you one welcome email about CUBA certification. Unsubscribe any time.
Three-phase billing error at plastics plant
That's a tough spot Lee. If they're actually getting three-phase service but billed as single-phase, AEP will definitely want to true up once they discover it. The service charge difference alone could be significant. I'd document everything carefully before contacting them and try to negotiate a limited lookback period.
You're right Ken. Looking at the meter setup, it's definitely three-phase service with a single-phase billing multiplier. This could be a $50K+ correction going back several years. Client is going to freak when they find out.