Commercial LED Retrofits: What Actually Changes on the P&L
LED is the most familiar efficiency measure in commercial real estate, and still one of the most under-scoped. The value is in hours, controls and maintenance, not just watts.
Three lines move, not one
- Energy. LED fixtures draw less power for the same light. The saving scales with operating hours, so warehouses, garages, parking lots and 24-hour common areas benefit most.
- Demand. Lighting that runs during the peak interval lowers the demand charge as well as the energy line.
- Maintenance. LED fixtures last longer than the lamps they replace, which cuts relamping labour, lift rental and disruption. This line is often missing from the business case.
Where the hours are
- Warehouses and industrial. High-bay fixtures running long shifts.
- Parking garages and lots. Lighting that runs most of the night, often on owner-paid meters.
- Multifamily common areas. Corridors, stairwells and exterior lighting that never switch off.
- Retail and offices. Long opening hours and display lighting.
Controls are where the second saving is
Occupancy sensors, daylight dimming and scheduling let the new fixtures run less, not just draw less. A retrofit that swaps fixtures without controls leaves part of the value behind. Many LED fixtures are controls-ready; specify them that way.
What to check before signing
- A fixture-by-fixture count and the operating hours behind the savings claim. If the hours are guessed, the savings are guessed.
- Light levels for the use of the space, so the retrofit does not under-light a loading dock or a stairwell.
- Utility incentives. Many utilities pay for qualifying lighting and controls. Programs and amounts change, so confirm the current offer for your territory before the quote is final.
- Which meter pays. Owner-paid meters turn the saving into NOI directly. Tenant-paid meters need a lease that shares it.
Where it fits in the plan
LED usually comes first because it is fast and low-risk, and it shrinks the load the solar system is sized for. See efficiency first for the full order.
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