⚡ Energy Efficiency
Energy Cost Savings Calculator
Calculate energy consumption, cost savings, and payback period for upgrades.
Device / System
Name of the device or system being upgraded
Current Power Consumption
W
Power consumption of current device in Watts
New Power Consumption
W
Power consumption of new energy-efficient device
Daily Usage
hrs
Average daily usage hours
Days per Year
days
How many days per year the device is used
Electricity Rate
$
/kWh
Cost per kilowatt-hour
Upgrade Cost
$
Total cost of the upgrade or new device
Savings
0%
Annual Savings
$0.00
yearly cost savings
Energy Saved
0 kWh
Payback Period
0.0 years
Monthly Savings
$0.00
ROI
0%
📐 Savings Formulas
Energy = Power × Hours ÷ 1000
kWh Consumption
Savings = Energy × Rate
Cost Savings
Payback = Upgrade Cost ÷ Annual Savings
Payback Period
ROI = (Savings ÷ Cost) × 100
Return on Investment
📊 Savings Breakdown
| Metric | Current | New | Savings |
|---|
How the formula works
Energy (kWh) = (Watts × Hours) ÷ 1000 | Cost = Energy × Rate
- Energy Consumption = (Power × Daily Usage × Days) ÷ 1000 (kWh)
- Energy Saved = Current Energy − New Energy (kWh)
- Cost Savings = Energy Saved × Electricity Rate
- Payback Period = Upgrade Cost ÷ Annual Savings (years)
- ROI = (Annual Savings ÷ Upgrade Cost) × 100