
Lighting
Category: Built Environment, Energy Efficiency
Commercial buildings spend nearly 25-30% of their energy on lighting. Replacing inefficient incandescent light bulbs with LEDs, fluorescent bulbs, or halogen bulbs greatly reduces a building’s lighting demands. Upgraded lighting fixtures, motion controlled lighting, and daylight sensors can improve lighting efficiency.
Benefits of Lighting Upgrades
- Saves money
- Better productivity from building occupants
- Less carbon emissions due to lower energy demand
Challenges
- Large upfront cost
- Generates light bulb trash often before the lightbulb design life is over

Impacts
-
GHG Impact
Moderate
More InfoReplacing lighting in outdated buildings can make a big difference in a campus’ energy demand.
-
Economic Impact
Net Savings
More InfoVaries on electricity cost, current bulb technology and the quality of upgrades.
-
Feasibility
Very Achievable
More InfoMany campus’ facilities already have been replacing burnt out bulbs with higher efficiency bulbs.
-
Timeline
< 1 year
More InfoReplacing every light bulb will take time.
-
Maintenance
Low / None
More InfoOnce installed, current maintenance will suffice.
-
Publicity
That's cool
More InfoExtremely low hanging fruit of sustainability. Campus users may notice, but won’t consider it a sustainable breakthrough for campus.