Electricity Usage and Measurement
Time-of-Use Electricity Cost Calculator
Enter values for Time-of-Use Electricity Cost that describe the same case, then use peak-period cost as a check rather than a design approval.
Model Time-of-Use Electricity Cost
Keep Time-of-Use Electricity Cost units and measurement conditions consistent before comparing peak-period cost.
Scope of the peak-period cost result
This worksheet is for calculate peak-period cost from peak energy and peak rate. The answer is easier to trust when the entered values describe the same equipment, period, and operating condition.
Time-of-Use Electricity Cost is only useful when demand interval, tariff period, and metering basis match.
Source notes for Time-of-Use Electricity Cost
Collect Peak energy, and Peak rate from the same operating case before reading peak-period cost.
- Peak energy
- Enter peak energy in kWh. Default shown: 320 kWh.
- Peak rate
- Enter peak rate in $/kWh. Default shown: 0.31 $/kWh.
If the next check belongs there, open Appliance Energy Use and keep Time-of-Use Electricity Cost as the baseline.
Interpreting Time-of-Use Electricity Cost
When peak-period cost is copied into notes, include the unit and the assumption that controls the result more than display precision does.
Formula notes for Time-of-Use Electricity Cost
The formula uses Peak energy, and Peak rate to produce Peak-period cost. Unit mistakes usually show up as an answer that is off by a factor of 10, 100, or 1,000.
Boundaries for peak-period cost
Calculate other tariff periods separately.
- Taxes and fees
- Demand ratchets
- Tiered rates
If this answer becomes an input to Generator Fuel Consumption, copy the value with its units and source note attached.
Operating notes for Time-of-Use Electricity Cost
Time-of-Use Electricity Cost needs the billing period and demand interval attached. A meter reading and a bill line can represent different time windows.
When peak-period cost becomes an input to another worksheet, copy the value only after the units and source condition have been verified.
Records for peak rate
Store the meter period, rate schedule, demand interval, and whether the Time-of-Use Electricity Cost value is before or after taxes.
If a later Time-of-Use Electricity Cost run changes only peak rate, label it as sensitivity work. Several changed conditions deserve a new baseline.
Before saving peak-period cost
When should this be run again?
Run a new Time-of-Use Electricity Cost case when the source condition changes, such as voltage, load, rate schedule, temperature, component, connection, or period.
Can this replace a design review?
No. Treat Time-of-Use Electricity Cost as arithmetic support; ratings, safety factors, code requirements, and manufacturer limits still need review.
Should nameplate and measured values be mixed?
Only mix nameplate and measured values in Time-of-Use Electricity Cost when that mix represents the actual case. Otherwise keep them in separate runs.