The Demand Charge
Subject area

Rate Schedules and Tariffs

Utilities publish more than one tariff for the same service territory, and being on the wrong one is among the most common avoidable overcharges in commercial billing. A general service schedule, a time-of-use schedule and a real-time pricing option will each price the same load differently, and the switching rules — notice periods, minimum stay, eligibility thresholds by demand level — are set out in the tariff book rather than on the bill. This section explains how to read a rate schedule, how to model your own interval data against alternative tariffs before committing, what standby and supplemental service cost a site with on-site generation, and how riders and surcharges attach on top of whichever schedule you land on.

Rate schedules

How to Choose the Right Electricity Rate Schedule

Being on the wrong tariff is among the most common avoidable overcharges in commercial billing. Modeling your own interval data against the alternatives settles it in a day.

8 min read

Supporting analysis

Everything underneath the pillar, in this subject area.

Rate schedules

How to Read a Utility Tariff Book

The tariff is the contract, it is public, and almost nobody opens it. A method for extracting the six things that actually determine what you pay.

4 min read
Rate schedules

Time-of-Use Rates for Commercial Accounts

The same kilowatt-hour costs different amounts depending on when it arrives. Whether that helps or hurts depends entirely on how much timing latitude your operation really has.

4 min read