ROI Calculator
| A). Compute The total power (Kilowatts, KW) saved by upgrading older Bulbs to energy saving LED replacements | ||
| Parameter | Unit | Numerical Value |
|---|---|---|
| Current Lamp Wattage: | W | |
| Overdrive Lamp Wattage | W | |
| Watts Saved | W | |
| Number of Lamps | Bulbs Quantity | |
| Total Watts Saved | W | |
| Total KiloWatts Saved | KW | |
| B). Compute the total energy (kilowatt hours, kWh) saved annually by performing this upgrade | ||
| Parameter | Unit | Numerical Value |
| Total KiloWatts Saved | KW | |
| Hours of Use per Day | hrs/day | |
| Days of Use per Week | day/week | |
| Week of Use per Year | wks/y | |
| Total KWH Saved per Year | KWH/yr | |
| C). Compute the total energy cost saving per year | ||
| Parameter | Unit | Numerical Value |
| Total KWH Saved per Year | KWH/yr | |
| Your Energy Cost per KWH | USD/KWH | |
| Total Energy Cost Savings Per Year | USD/yr | |
| D). Compute the lifetime energy cost savings | ||
| Parameter | Unit | Numerical Value |
| Replacement Bulb Life | hours | |
| Hours per Year Usages | hr/yr | |
| Total Energy Cost Savings Per Year | USD/yr | |
| Lifetime Energy Cost Savings | USD | |
| Parameter | Unit | Numerical Value |
| Replacement Bulb Unite Price | USD/pcs | |
| Initial Cost of LED Light Bulb | USD | |
| Total Energy Cost Savings per Year | USD/yr | |
| Simple Payback on Energy Consumption | Years | |
| Return on Investment(ROI) | % | |
| E). Compute the lifetime labor/inventory/acquistion costs savings from upgrading to longer life LED replacements | ||
| Parameter | Unit | Numerical Value |
| Replacement Bulb Life | hours | |
| Original Bulb Life | hours | |
| Labor Cost to Change Original Bulb | USD | |
| Cost of Original Bulb | USD | |
| How many Bulbs to Replace | Bulbs Quantity | |
| Cost to Install Replacement LED Bulb | USD | |
| Total Lifetime Bulb Changing Cost Savings | USD | |
| F). Compute the amortized bulb changing cost savings per year | ||
| Parameter | Unit | Numerical Value |
| Total Lifetime of Replacement Cost Savings | USD | |
| Total Lifetime of Replacement Bulb | Years | |
| Total Amortized Replacement Cost Savings Per Year | USD | |
| Parameter | Unit | Numerical Value |
| Simple Payback on Energy Consumption Plus Replacement Costs | Years | |
| Initial Cost of Lighting Upgrade Per Bulbs | USD | |
| Total Energy + Replacement Cost Savings per year | USD | |
| Return on Investment (ROI) | % | |