Examples of lighting controls cost savings

This case study shows the impact of lighting controls on whole building energy costs.

11/16/2011


As an example of the cost savings that lighting controls can generate, we have performed a case study of two 24-hour facilities and the impact the lighting controls time schedule has on the whole building energy costs. The energy costs included in this case study account for the reduced lighting load and the impacts to the cooling load and heating loads for each building when the lighting is controlled by a time schedule. For both projects the cost savings in energy usage results in a simple payback of less than 4 years for the lighting controls equipment, labor, and start-up/commissioning.

The two 24-hour facilities evaluated in the case study are mixed industrial and office spaces of 300,000-650,000 sq ft. The lighting in the industrial work areas is controlled with a time clock used to switch lights keyed to specific zones by shift schedule. The control equipment allows zones to be reconfigured down to a fixture level, and fixtures are switched on/off with the time clock schedule or by a timed override switch for each zone. The analysis considers only the industrial area lighting controls system, labor, start-up, and commissioning.

Figure 2: The energy savings gained by a fully functioning lighting controls system pays back so quickly that the start-up and commissioning should never be questioned. Courtesy: Primera Engineers Ltd.

Fimek is an award-winning lighting designer at Primera Engineers Ltd. She is Lighting Certified by the NCQLP and is well versed in lighting calculation and rendering software.



No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
High-performance buildings; Building envelope and integration; Electrical, HVAC system integration; Smoke control systems; Using BAS for M&V
Pressure piping systems: Designing with ASME; Lab ventilation; Lighting controls; Reduce energy use with VFDs
Smoke control: Designing for proper ventilation; Smart Grid Standard 201P; Commissioning HVAC systems; Boilers and boiler systems
Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Consulting-Specifying Engineer case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.

Protecting standby generators for mission critical facilities; Selecting energy-efficient transformers; Integrating power monitoring systems; Mitigating harmonics in electrical systems
Commissioning electrical systems in mission critical facilities; Anticipating the Smart Grid; Mitigating arc flash hazards in medium-voltage switchgear; Comparing generator sizing software
Integrating BAS, electrical systems; Electrical system flexibility; Hospital electrical distribution; Electrical system grounding
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.