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PECUs (Photocells) affect energy consumption in 2 ways:
- PECU Consumption: The PECU (Photocell) consumes energy. The amount varies according to the technology used. Generally consumption is less than 5W (approx 44kWh/year) and many are less than 0.25W (which equates to 2.2kWh/year)
- Burning Hours: Burning hours have the most dramatic effect on consumption. A further 100hrs/year on a typical 100W load results in an additional 10kWh/year consumption. Switching level, switching accuracy, and switching ratio have most effect on burning hours.
A major consideration is how accurately and consistently the load is controlled over a long period of time. PECUs have benefits over time-clocks as they turn the lights on when the light falls, ensuring that light is provided when there is poor visibility prior to dusk. Yet on clear evenings they take full advantage of good light.
Also see
To find out more about the Zodion Lighting Controls range of Photo Electric Control Units, please browse our catalogue pages.
Our PECUs range includes:
If you have any questions, please contact us on 01422 317 317 or fill in our contact form we will be delighted to answer any questions you might have on PECUs.
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