Walt D from Pittsburgh, PA. Duquesne Light territory. After about a year of auditing small commercial accounts — restaurants, offices, retail stores — a referral came in from an attorney I knew. His client was a steel stamping plant pulling about 2 MW with a monthly electric bill around $140,000. I almost turned it down because I had never worked on anything that size. The tariff was 45 pages long. The bill had 23 line items I had never seen before — interruptible credits, transmission demand charges, capacity obligation charges, reactive power adjustments. It took me 3 weeks just to understand the bill structure before I could start the actual audit.
My first industrial client — terrifying and worth every minute
Walt, the jump from small commercial to industrial is intimidating but it is where the real money is. A 1% error on a $140,000/month bill is $1,400/month or $16,800/year. The same 1% error on a $2,000/month restaurant bill is $20/month. The complexity is higher but the payoff per hour of work is dramatically better.
Randy, exactly. And the error rate on industrial accounts is often HIGHER than small commercial because the tariffs are so complex that even the utility billing department struggles to apply them correctly. On this steel plant I found three separate errors: a transmission demand charge calculated using the wrong coincident peak value ($18,400/year), an interruptible service credit that was not being applied even though the plant was enrolled in the program ($31,200/year), and a reactive power charge that was using the wrong measurement interval ($8,600/year). Total annual savings: $58,200. My fee at 40%: $23,280. On a single account.
Walt, that interruptible credit miss is huge. $31,200/year just sitting there uncollected because someone forgot to link the interruptible enrollment to the billing account. That is the same issue we see with demand response credits — the program enrollment and the billing system are not connected.
I remember being terrified of my first industrial account too. Textile mill in Charlotte on Duke Energy. The bill was 4 pages long and I did not recognize half the charges. I spent a week at the public library reading Duke industrial tariff before I could even start the analysis. Found a $42,000 annual error. That one client is still my highest-fee engagement 3 years later.
Derek, the library tariff study is relatable. I printed the entire Duquesne Light industrial tariff — 45 pages — and annotated every section with notes. That annotated tariff became my reference document for every future Duquesne industrial audit. The upfront investment in understanding the tariff pays dividends across every client in that utility territory.
For any auditor thinking about moving into industrial: start with the tariff, not the bill. Read the entire rate schedule before you look at a single bill. Understand what every charge is supposed to be before you try to find errors. If you start with the bill and work backward to the tariff, you will miss things because you do not know what you do not know.
Frank is absolutely right. The tariff-first approach is the difference between professional auditing and amateur bill scanning. I now spend a minimum of 4 hours studying a new utility tariff before I analyze any bills in that territory. For complex industrial tariffs, it can take 2-3 days. That preparation time is what makes the $58,000 findings possible.
This thread should be required reading for every auditor considering the move to industrial accounts. The message: it is harder, it is scarier, and it is exponentially more profitable. Walt turned one referral into a $23,280 fee. That is more than most new auditors earn in their first 6 months of small commercial work. The leap is worth it.