Primary Tool
Energy Cost Comparison
Normalize billing units to delivered MMBtu so unlike energy sources can be compared on the same useful-load basis.
Adjust this if your gas tariff uses a different billing factor.
Usage is converted to delivered MMBtu before rate normalization.
Primary source
Presets preload a representative delivered efficiency that you can override.
Therms of natural gas
Enter a decimal, COP, or percent such as 0.90, 3.20, or 90.
Comparison source
Presets preload a representative delivered efficiency that you can override.
Kilowatt-hours of electricity
Enter a decimal, COP, or percent such as 0.90, 3.20, or 90.
Normalized cost table
Rates are converted to dollars per MMBtu of input energy, then adjusted for delivered efficiency.
| Source | Rate ($/MMBtu) | Input energy (MMBtu) | Delivered load (MMBtu) | Total cost | Cost per delivered MMBtu |
|---|---|---|---|---|---|
| Natural Gas Furnace | $12.00 | 133.33 | 120.00 | $1,600.00 | $13.33 |
| Electric Resistance | $52.75 | 120.00 | 120.00 | $6,330.33 | $52.75 |
Natural Gas Furnace saves $4730.33 compared with Electric Resistance across 120.00 delivered MMBtu.