One of the vital standards all buildings must be designed for is ASHRAE Standard 62.1 – Ventilation for Acceptable Indoor Air Quality. Engineers and Designers use these standards to ensure all areas of any building receive the minimum mandated ventilation rate, also known as fresh or outside air. Modern Heating, Ventilation, and Air Conditioning systems

O.Reg. 20/17: Ontario’s Reporting of Energy Consumption and Water Use under the Green Energy Act, 2009. On July 1, 2017, the reporting of energy consumption and water use will become mandatory in the Province of Ontario. Who needs to report?  Any building over 50,000 ft² or any multi-unit residential building over 10 units. Who is

Standby generators are necessary in many buildings as part of the Emergency electrical power supply and they are used to power a number of life safety devices.  Such devices include the fire pumps, fire alarm, emergency lighting, exit lighting, smoke evacuation and pressurization fans, and the elevators.  The emergency electrical power system along with the

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