LED uses a fraction
An LED bulb gives the same light output for far less power than halogen, and lasts considerably longer.
All energy measures
Smart controls
Energy-efficient lighting
Lighting is a smaller share of household energy use than many assume, but it is cheap to address — and in buildings with long operating hours the item becomes significant.
See what this means for your homeThis measure is relevant if
- The home still has halogen or incandescent bulbs
- Lights are left on in rooms that are not in use
- Outdoor lighting runs all night
- You want a measure that costs little and can be done at once
What it does to energy use
The heat from lighting counts in winter
Old bulbs gave off heat that contributed to heating. Replace them and that free heat disappears, so part of the saving is eaten up during the heating season.
In summer it is a pure gain
The same heat output is a drawback when it is warm. In buildings with cooling it counts twice.
Control matters more than the bulb
Motion sensors and daylight control cut the hours the light is on. In shared areas and outdoor lighting that is often larger than the bulb swap itself.
Sequence matters
Lighting can be done at any time and depends on nothing else. It is a good place to start if you want to see something happen quickly, but do not expect much movement on the energy label of a home — there, heating is the dominant item.
Enova funding
Lighting is not a measure of its own in Enova's residential schemes. It does feature in schemes for commercial buildings. Check what applies to your building.
Rates and terms change. What you can receive depends on the building, how the work is carried out and which schemes apply at the time. Always check Enova's own pages before relying on a figure.
The rates tell you what you can receive. The calculation tells you what the measure actually does to your home — how much it saves, what it costs, and whether it should come before or after the others.
Which measures pay off in your home?
Enter the address. Gadder collects what is known about the building, calculates the energy demand and ranks the measures by what they actually deliver.