New DLC Report: Energy Savings Potential of DLC Commercial Lighting and Networked Lighting Controls - Energy Watch News


New DLC Report: Energy Savings Potential of DLC Commercial Lighting and Networked Lighting Controls

New research demonstrates energy savings potential that can significantly reduce our energy load over the next ten years and beyond. Energy saving opportunities for residential utility lighting programs will soon be largely exhausted due to growing market saturation and EISA federal standards set to take effect in 2020. Commercial and industrial (C&I) utility lighting programs, however, face a very different fate. The type of product addressed by EISA – screw base lighting – accounts for only 10% of fixtures and sockets installed in C&I buildings versus 90% of residential. Lighting product types used by C&I facilities are primarily indoor linear fixtures (72% of installed products). In each C&I product category, the large installed base coupled with relatively low LED market saturation offers significant potential for future energy savings, particularly when paired with networked lighting controls. Regardless of state or region, a path exists to maintain C&I lighting portfolios at or above current levels until at least 2028. https://www.designlights.org

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2 comments on “New DLC Report: Energy Savings Potential of DLC Commercial Lighting and Networked Lighting Controls

  1. Rod Heller says:

    I reviewed the case studies and was blown away at the energy savings attributed to controls. If we did that poorly on reducing energy consumption with a lighting upgrade, we would be out of business. Adding controls saves a minimal amount and typically pushes the pay back out longer.

    In a school or office environment, we are down to .25 watts/sq ft. How they get that much savings with sensors is beyond my knowledge. This is why I question the value of DLC. Just a toll gate looking to get money from manufacturers.

  2. Stan Walerczyk says:

    I totally agree with Rod Heller. I also reviewed the very flawed case studies, which some only had below a 40% wattage reduction with LEDs and often most of the savings were from high end trimming, which means the installed LED products were way too high wattage and lumen.

    Often with my 0.25 – 0.30 WSF proposals, I am seeing that energy saving controls have close to a 20 year payback, which is probably infinite, because they probably will not last that long and have to be replaced.

    Pacific Northwest National Laboratories has two good reports that show very little and sometime negative savings with occupancy sensors. Check out ‘Impacts of Commercial Building Controls on Energy Savings and Peak Load Reduction’ and ‘Advanced Lighting Control System Performance: A field Evaluation of Five Systems.

    Negative energy savings from occupancy sensors can be from ‘owned spaces’ where people used to do a good job turning the lights off when they left and then after occupancy sensors were installed, they allow for the automatic 10 – 15 minute delay to turn the lights off.

    I have seen some organizations provide up to a $50 rebate for luminaire level lighting controls, which if I was rate payer in those areas, would feel I am getting ripped off.

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