Obtain the exact product schedule
Ask for peak and off-peak definitions, seasonal changes, weekend and holiday treatment, time zone and any other periods. Distinguish a utility tariff from a supplier product and check which components the schedule affects. Do not reuse a timetable from another utility or an old article. Record the version and effective dates used in the analysis.
Match usage to the defined periods
Interval data provides a stronger basis than a monthly total for time-sensitive pricing. Calculate quantities in each period and include known fees and excluded costs. If data is unavailable, label assumptions clearly rather than manufacture a precise saving. Check whether a planned operating change would alter the distribution of usage.
Assess the cost of shifting activity
Moving a process can affect staffing, maintenance, production and customer service. Safety and product requirements control what can move. A lower off-peak energy rate may be offset by other costs or a new demand peak. Evaluate the full operating consequence rather than assuming load can be shifted without friction.
Compare a realistic alternative
Use the same total service requirement when comparing a time-sensitive product with a flat product. Test a case where less load can move than planned. Review renewal terms and what happens if the operating schedule changes. The product should remain understandable and affordable under plausible conditions, not only under the most favorable spreadsheet case.
A practical example
Illustrative explanation, not a customer outcome.
At hypothetical energy-only prices of 12¢ peak and 6¢ off-peak, shifting 1,000 kWh between those periods changes modeled energy cost by $60. That assumes the shift is allowed and excludes demand, fees and operational costs.
Put the review into practice
| Review step | What to record |
|---|---|
| Match the request | Use the same utility, class, quantities, start and term. |
| Resolve exclusions | Ask how every omitted cost is calculated; unknown is not zero. |
| Read the exit terms | Review renewal, cancellation, relocation and usage conditions. |
| Retain the evidence | Save the dated quote, complete agreement and decision rationale. |
Questions worth asking
When is electricity cheapest in Ohio?
It depends on the actual tariff or supplier product. Check its current defined periods.
Does lower off-peak energy ensure a lower total bill?
No. Demand, fees and operational consequences must also be reviewed.
Continue the comparison
Sources and scope
Reviewed October 15, 2026. Follow the source’s own data period, effective dates and current terms. Examples are hypothetical unless expressly identified as a dated published result. A source is context, not a guarantee of eligibility or a product endorsement.