Thermo-electric Refrigeration

Tuesday, 08 November 2016 by

Thermo-electric refrigerators (figure 7) due to their high cost and low efficiency are far less commonly used then vapor compression or gas cycle. However they do have their advantages, the adaptability and lack of moving parts/circulating fluid make it ideal for small lightweight applications. As well as applications where leaks of a vapor compression unit

The most important part of any project is the beginning steps, and energy conservation projects are no different.  It is very important that the first steps taken…often an energy audit…are performed correctly to thoroughly and accurately uncover energy conservation measures. An energy conservation project can be divided into the following 5 stages. Each stage has

Arena Lighting – The Here and Now!

Thursday, 14 July 2016 by

The summer 2016 issue of Facility Forum featured an in-depth arena lighting article penned by our in-house lighting expert Christie Martin. The article appears below as an excerpt from the magazine orginally published by the Ontario Recreation facilities Association and the current issue can be found here.

Quick Lesson on Colour

Wednesday, 11 May 2016 by

Quick Lesson on Colour Rendering Index (CRI) and Correlated Colour Temperature (CCT) Colour Rendering Index (CRI) quite simply is the measure of colour accuracy of a particular light source. Basically, how well does the light source render colour compared to a reference at the same Correlated Colour Temperature (CCT).  Each light source produces a light

More and more, building owners are viewing energy conservation as an investment as opposed to “something nice to do for the environment”.  A common way to valuate a building is by using the capitalization rate, or “Cap Rate”. Cap Rate is defined as the annual net operating income divided by the value of the building. 

Interval meters are devices that are installed in a building to log and monitor real time energy consumption in intervals of set time increments. These meters are typically found in larger commercial and industrial facilities, most of whom are large consumers of energy. Interval meters are used to determine electricity consumption of the building and

Many of Efficiency Engineering’s clients contact us from time-to-time to comment on the validity of claims from product vendors.  It is our experience that vendors of products with questionable energy conservation claims tend to approach building owners/managers directly instead of approaching engineering firms. Some products that we review very quickly fall into the “not a

Typical cold storage facilities are illuminated by High Intensity Discharge (HID) and/or linear fluorescent fixtures. While these technologies each have their own advantages and disadvantages, LED technology now offers advantages well beyond the upfront energy savings. LED Technology Advantages in Cold Environments: Energy Savings Quality LEDs have greater efficacy than metal halide (MH) technology. This

Green Rating Systems and Certification

Monday, 25 January 2016 by

Sustainable construction and operation of our built environment is key to our planet’s future. While we can argue that any step towards a sustainable environment is a positive one, having rating and certification systems helps guide us to achieving our building goals. There are many sustainable building rating systems available to the North American market.

Don’t Delay If you Don’t Have To!!

Thursday, 21 January 2016 by

It is a very common occurrence in the experience of Efficiency Engineering for there to be 1-3 years between a recommendation/design being made and it’s actual implementation. Many of our retrofits cost well into the 6 figures and even 7 from time to time, as such there is an understandable reticence to launch a project.