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# Do you care about return on investment?

Let's calculate based on an example project!

## Let’s assume this project needs 500 pcs High Bays Retrofit.

 Traditional Lamp Source 400W MH What is the quantity of luminaires ? 500pcs Cost of replacement lamps  in (\$) \$5 Cost of disposal per lamp (\$) \$5 Time per fixture for lamp maintenance (Hours) 2hrs How many people are required for lamp maintenance ? 1 Labor rate (\$ per Hour) \$75 What is the energy cost on site ? \$0.2 Lighting hours of operation per day 10 Operation days per week? 6 Lift Rental, Scaffolding Costs, Contractor Costs, Ect \$500 Estimated  Tax Rebate Per Fixture (if available) 0

## Before we do the calculation, we need to know these:

#### Total Consumption

The existing 400W metal halide fixtures draw 456W (including ballast consumption).

#### Two Persons

Use the fully loaded labor rate. Many Harsh and Hazardous locations require 2 person teams.

#### Replacement Time

Be sure replacement time includes time for approvals, down time, paperwork, lock out tag out, man lift, etc.

#### Working Time

If you work 8 hour shifts, don‘t forget to add an hour at the end and a hour at the beginning of the day. We often find that there is usually someone there early and late, So you want to take all factors into consideration.

### MH Yearly Energy Costs:

0.456kW X 500pcs X 3120hrs/py X \$0.2/kw= \$142,272 per year

### HiCloud LED High Bay Yearly Energy Costs:

0.120kW X 500pcs X 3120hrs /py X \$0.2/kw= \$37,440 per year

### Yearly Saving at Energy:

\$142,272 – \$37,440 = \$104,832 per year

## So you’re saving US\$ 104,832 per year. NO! You are making US\$ 104,832 per year

Don’t forget that we haven’t considered conventional HID maintenance costs saving yet.

## Oops! We forget to consider conventional HID maintenance costs saving!

You will agree most of projects could be paid back in less than 2 years if you have got the HiCloud LED high bay price.