This Design Clinic shows three different ways you can save energy in an existing corridor without compromising on the quality of the lighting, using products from Ex-Or. We are not altering the light distribution (like some LED tubes do), or lowering the CRI or using super cool light sources. Instead, we are using simple controls that can be retrofitted in to an existing installation – you will have to do a bit of rewiring though.
I’m not the only person whose mind goes a bit blank when confronted with terms like multiple universes, nodes, interoperability and protocols. The secret is to keep things really simple. Start with a small area and then work your way up.
Whenever you install controls, you save energy. This, in itself, is a good thing to do. In most cases, you can also save money. This is an added benefit but the actual amount you save depends on the location, design, how the space is used, combination of controls, dimmability of the light source and so on.
If you are a heavy user of electricity, you can often save extra money by reducing energy at peak times. Some supermarkets save on their maximum demand tariff by reducing the air-conditioning, or cooling to the chiller cabinets, just for short periods of time.
Our corridor is 3m wide and 2.8m high. It is lit to 200 lx using dimmable LED downlights with a dished opal diffuser. There are offices on one side and windows on the other.
The same luminaires are used throughout. Only the type of control used has been changed. In fact, it is possible to combine all three controls to get maximum savings.
One final point that needs to be mentioned is ease of setup. With some other suppliers, commissioning can be a total pain and may even require an outside specialist to be brought in. Ex-Or has devoted a lot of effort developing its QuickSet Pro handheld setup controller.