Turn cooking habits into clear yearly energy numbers. Adjust rates, usage, and efficiency assumptions easily. Download results, plan upgrades, and keep bills lower ahead.
| Scenario | Current kW | Upgrade kW | Hours/week | Rate | Annual kWh saved | Annual bill saved |
|---|---|---|---|---|---|---|
| Light baking | 2.5 | 2.0 | 3 | 0.16 | 120 | 19.20 |
| Family meals | 3.0 | 2.3 | 6 | 0.20 | 310 | 62.00 |
| High usage | 3.5 | 2.6 | 10 | 0.22 | 640 | 140.80 |
Cooking energy mainly follows power, duty cycle, and weekly hours. When duty cycle drops from 80% to 60%, active energy falls by 25% at the same cooking time. This calculator combines active, preheat, and standby use to estimate annual totals and highlight where savings really come from. Try changing one input at a time to run a quick sensitivity check and see which assumption drives the result the most. Your current estimate is — kWh/year, while the upgrade estimate is — kWh/year.
Preheating is short, but it happens often. A 10 minute preheat at 3.0 kW uses 0.50 kWh per session. Multiply that by weekly sessions to see why batching meals matters. Your settings imply — sessions per year. Lower preheat time or fewer sessions raises savings without changing recipes.
Clocks, displays, and control boards can draw power all year. Even 3 watts steady use becomes about 26 kWh annually. The calculator assumes standby runs outside active cooking hours and shows its effect on total energy. If your standby draws are accurate, trimming standby from 3 W to 1 W can save roughly 17 kWh each year.
Simple payback compares net upfront cost to yearly savings. It is easy to explain, but it ignores discounting. Net present value discounts future savings and can include energy price changes. A higher discount rate lowers the value of distant savings, while a longer analysis period raises the chance of breakeven. Your estimated annual total savings are —, and NPV is —. A positive NPV usually supports the upgrade under your assumptions.
Emissions depend on the electricity mix, so use a local factor when possible. This tool multiplies annual kWh saved by your CO₂ factor to estimate avoided emissions. With your inputs, the reduction is — kg/year. Pair this with utility statements to document savings for household goals, audits, or sustainability reporting.
Not always. Better insulation and faster preheating can matter more than rated power. Use the duty cycle, preheat minutes, and standby fields to reflect real behavior.
Many ovens average 50% to 80% after reaching temperature. If you frequently open the door, use a higher duty cycle. If you bake small items and keep the door closed, use lower.
Check the label, manufacturer specs, or measure with a plug-in meter when possible. If you cannot measure, start with 1 to 5 watts for modern models and test sensitivity.
If energy prices rise, future bill savings grow, which increases discounted value. If prices fall, savings shrink. This tool scales bill savings each year by your price change input.
It is the first year where cumulative savings exceed net upfront cost. It uses undiscounted savings, so it is intuitive for budgeting, while NPV is better for investment decisions.
Yes for comparison. Enter an equivalent kW rating and a blended energy rate. For precise gas analysis, convert fuel use to kWh with your utility conversion factor and update the rate.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.