Case study · Apartment building
Apartments at nearly half the watts
About 400 fixtures at a Charlotte-area luxury apartment building went from 26W compact fluorescent on magnetic ballasts to 14W LED, with Duke Smart Saver help and more than $60,000 in projected 5-year savings.
The job
This luxury apartment building in the Charlotte area had about 400 fixtures running inefficient 2-pin compact fluorescent bulbs on magnetic ballasts that are no longer made.
We supplied an LED solution that cut each fixture from 26W to 14W, with a look that is clean and safe for the building and its residents.
The project was eligible for the Duke Energy Smart $aver program, which brought the return on investment to about 2 years. Projected savings over 5 years came to more than $60,000.
Before
~400 × 26W
2-pin CFL, magnetic ballast
Ballasts no longer made
After
~400 × 14W
LED
Clean, safe look
- Watts per fixture
- 26 → 14
- Load removed (calc)
- ~4.8 kW
- 5-year savings
- $60,000+
- Return
- ~2 years
"calc" figures are worked out from the job's fixture counts and watts.
Want numbers like these?
We'll walk your building, count the fixtures and show you the savings and any Duke rebate before you buy.
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