Choose the value to solve for, then enter the two known quantities. Energy inputs and results support kWh, MWh, and GWh. Compare the same reporting period and system boundary.
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Consumption Ratio Formula
The consumption ratio compares total consumption to total production. Both values must be in the same energy unit before the ratio is calculated.
- CR = consumption ratio, unitless
- TC = total consumption
- TP = total production
If you enter total production and consumption ratio, the calculator rearranges the formula to solve for total consumption:
If you enter total consumption and consumption ratio, the calculator rearranges the formula to solve for total production:
The calculator converts kWh, MWh, and GWh to a common base unit before calculating. This keeps the ratio correct even when consumption and production are entered in different units.
Energy Unit Conversions Used
Use these conversions when checking a result by hand.
| Unit | Equivalent in kWh | Common use |
|---|---|---|
| kWh | 1 kWh | Small-scale electricity use |
| MWh | 1,000 kWh | Facility or production reporting |
| GWh | 1,000,000 kWh | Large system or utility-scale reporting |
How to Interpret the Consumption Ratio
| Consumption Ratio | Meaning |
|---|---|
| Less than 1 | Consumption is lower than production. |
| Equal to 1 | Consumption equals production. |
| Greater than 1 | Consumption is higher than production. |
Example Problems
Example 1: Calculate consumption ratio
You have total consumption of 750 kWh and total production of 1,000 kWh.
The consumption ratio is 0.75. This means consumption is 75% of production.
Example 2: Calculate total consumption
You have total production of 2 MWh and a consumption ratio of 0.6.
The total consumption is 1.2 MWh.
FAQ
Is the consumption ratio a percentage?
No. The consumption ratio is a unitless decimal. To express it as a percentage, multiply the ratio by 100. For example, a consumption ratio of 0.75 equals 75%.
Can consumption and production use different units?
Yes. The calculator converts kWh, MWh, and GWh to the same base unit before calculating. For example, 500 kWh divided by 1 MWh is calculated as 500 kWh divided by 1,000 kWh, which gives a ratio of 0.5.
Why can total production not be zero when calculating the ratio?
The formula divides total consumption by total production. Division by zero is not valid, so total production must be greater than zero when solving for the consumption ratio.
