Working with an auto parts manufacturer in Michigan, 8MW load. They're currently on DTE's Schedule D-5 but I think they might qualify for D-6 based on load factor. Anyone familiar with the qualification differences between these two tariffs?
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.
DTE large industrial rate Schedule D-5 vs D-6
Donna, D-6 typically requires higher load factor - I think it's 65% minimum for DTE. D-5 has lower demand charges but higher energy rates. If your client has consistent high load factor, D-6 could save significant money. What's their annual load factor running?
Load factor is running about 72% annually, peaks during second shift operations. Current bills are averaging $520K/month on D-5. Think it's worth running the numbers for D-6?
Absolutely worth checking. We moved a Ford supplier from D-5 to D-6 two years ago, saved them $180K annually. The key is making sure they can maintain that load factor - if it drops below 65% they get penalized. Get 24 months of interval data and model both rates.