Archive for the ‘ROI’ Category

Significant savings achieved on centralized control in Turkish city

Thursday, August 2nd, 2007

The Danish company, Amplex, has released a report stating that savings of 25-30% have been achieved by centralizing street light control in a major Turkish city.
The report describes a pilot project where modules are installed in five control cabinets at representative locations in the city. Parts of the savings come from centralizing control, but the most significant savings are generated through dimming at off-peak hours. Two dim levels were established, and the lights went back full on early in the morning.
Even though the pilot showed savings of up to 32%, Amplex expects the savings to be even bigger when burn hours are optimized and when dimming is set earlier in e.g. industrial areas and on weekends. Additionally, savings are expected on maintenance and proactive bulb change. Based on the indications from the pilot, a very low ROI of 1-2 years can be expected.
Read the full executive report here…

Energy saving LED street lights

Saturday, June 30th, 2007

The city of Ann Arbor expects to spend $640,000 on new LED street lights which are expected to pay for themselves over the next 4.2 years in energy savings.