Template · Engineering
Electrical energy and cost calculator
Estimate daily and monthly energy use from appliance input power, operating hours, days, and an entered tariff.
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XLSXCSVODSXMLNumbers| Electrical energy and cost calculator | |||||||
| Example data — replace the blue input cells with your own. | |||||||
| Estimate daily and monthly energy use from appliance input power, operating hours, days, and an entered tariff. | |||||||
| Populated records | 3 | ||||||
| Total energy cost (USD) | $78.21 | ||||||
| 60 record rows. Blue cells are inputs; dark cells calculate. | |||||||
| Equipment | Input watts | Hours per day | Days | USD per kWh | Daily kWh | Period kWh | Energy cost (USD) |
| Example heater | 1,500.0000 | 8.0000 | 30 | 0.1500 | 12.0000 | 360.0000 | $54.00 |
| Example lighting | 120.0000 | 10.0000 | 22 | 0.1500 | 1.2000 | 26.4000 | $3.96 |
| Example pump | 750.0000 | 6.0000 | 30 | 0.1500 | 4.5000 | 135.0000 | $20.25 |
Showing the first 16 of 72 rows and 8 of 8 columns. Cells with formulas show the formula on hover.
| Electrical energy and cost calculator | |||
| Method, inputs, and limits for this workbook. | |||
| What it does | |||
| Estimate daily and monthly energy use from appliance input power, operating hours, days, and an entered tariff. | |||
| How to use it | |||
| Replace the fictional records in blue cells with your own data. Keep the dark formula cells. Use the units stated in the column headers and keep each record on one row. Read the calculated columns and inspect the results before using them.… | |||
| Formulas and method | |||
| Daily kilowatt-hours equals watts divided by one thousand times hours per day. Monthly energy multiplies daily energy by operating days, and cost uses the entered USD per kilowatt-hour. | |||
| Assumptions and limits | |||
| Power is electrical input, not mechanical output. The calculation excludes demand charges, standby changes, time-of-use pricing, and taxes unless included in the tariff. | |||
| Missing numeric inputs |
Showing the first 16 of 72 rows and 4 of 4 columns. Cells with formulas show the formula on hover.
What does this template do?
Estimate daily and monthly energy use from appliance input power, operating hours, days, and an entered tariff.
Daily kilowatt-hours equals watts divided by one thousand times hours per day. Monthly energy multiplies daily energy by operating days, and cost uses the entered USD per kilowatt-hour.
Power is electrical input, not mechanical output. The calculation excludes demand charges, standby changes, time-of-use pricing, and taxes unless included in the tariff.
The working tab keeps editable inputs separate from formulas, with room for 60 records. The Notes tab explains the method and how to extend the range. All example records are fictional and can be replaced. Download a workbook format to retain formulas, or CSV when you need calculated values only.
What’s inside
- Daily kilowatt-hours equals watts divided by one thousand times hours per day. Monthly energy multiplies daily energy by operating days, and cost uses the entered USD per kilowatt-hour.
- 60 prepared record rows with blank-row guards
- Blue input cells, typed dates and numbers, and frozen column headers
- Notes with the method, assumptions, and range-extension instructions
Which tabs does the workbook have?
| Tab | What it holds |
|---|---|
| Worksheet | Estimate daily and monthly energy use from appliance input power, operating hours, days, and an entered tariff. |
| Notes | How to use the workbook, formula method, assumptions, and file format limits. |
What formulas does this template use?
This template holds 182 formulas in 229 cells across 2 tabs, so 79% of its cells calculate. They use 5 distinct functions; the longest formula is 106 characters.
| Function | Uses | What it does |
|---|---|---|
IF | 361 | one result when a test is true, another when false |
COUNT | 180 | counts numeric cells |
COUNTIF | 2 | counts cells meeting one condition |
COUNTA | 1 | counts non-empty cells |
SUM | 1 | adds numbers |
Counted from the workbook itself. Only functions that Excel, LibreOffice Calc, Google Sheets and Apple Numbers evaluate the same way are used, so the formulas survive every download format.
How do you use it?
- Replace the fictional records in blue cells with your own data. Keep the dark formula cells.
- Use the units stated in the column headers and keep each record on one row.
- Read the calculated columns and inspect the results before using them. Clear unused input rows; keep their formulas.
- The prepared range holds 60 records in rows 11–70. Extend formulas and summary ranges together if you add more rows.
What is it good for?
- Estimate daily and monthly energy use from appliance input power, operating hours, days, and an entered tariff
- Replacing the labeled fictional records with your own figures
- Checking a calculation before adapting it to a larger workbook
Questions about this sheet
How is the result calculated?
Daily kilowatt-hours equals watts divided by one thousand times hours per day. Monthly energy multiplies daily energy by operating days, and cost uses the entered USD per kilowatt-hour.
What assumptions should I check?
Power is electrical input, not mechanical output. The calculation excludes demand charges, standby changes, time-of-use pricing, and taxes unless included in the tariff.
Can I add more than 60 records?
Yes. Copy the formula columns into new rows and extend every summary range to include them. Keep inputs and formulas in their original columns.
Are the example records real?
No. All example data is fictional and intended to demonstrate the formulas. Replace it before using the workbook for your own work.