The Northeast blackout of August 2003 affected over 55 million North Americans, including 10 million in Ontario.  I remember it quite vividly, as it was eerie to walk around the house in complete darkness and silence, and to go outside and see the night sky in all its glory.  I have fond memories of that

With the introduction of energy efficient equipment and lighting technologies in recent years, hydro users everywhere, whether they be commercial, industrial, or residential have been able to shave their utility costs. With the rate of hydro increasing and the cost of technology going there are greater and greater incentives to upgrade aging equipment and lighting

Some of our clients are often surprised when they see the installed cost of a Combined Heat and Power (CHP) plant.  Their point of reference is often the cost of a back-up generator.  The cost difference between the CHP and the backup generators is significant, even when accounting for the extra mechanical, electrical and venting

Lighting Retrofit – Case Study

Monday, 21 December 2015 by

Improving Indoor Air Quality for Pools

Tuesday, 10 November 2015 by

A client recently approached Efficiency Engineering (EE) to review the HVAC system serving a pool and adjacent community center spaces for an apartment complex. The building has experienced a prolonged period of uncontrollable indoor air conditions and poor air quality in and around the basement pool and adjacent corridors and recreation spaces. The recreation centre

It is now possible to achieve the savings of a condensing boiler without the capital costs! During the past couple of design projects I have performed, a boiler retrofit project in Sarnia and a Social housing building in Toronto, I observed an interesting development.  I was using RBI boilers as a design basis in both

Disaster Proof your heat and power with CHP As New York City and surrounding communities were left partially flooded and prolonged power outages after Hurricane Sandy, the lights and heat stayed on a select number of facilities including in the New York University and Co-Op City high rise housing complex. [ref: The New York Times]

Traditionally our arenas have been illuminated by high intensity discharge (HID) fixtures. Metal halide technology is the most common of the HIDs utilized in arenas because of the clean white light it produces along with fairly good colour rendering ability (CRI of 65-70) and efficacy (65-100 lumens/watt). While metal halide technology ensures the goal of

A battery in general is a device which makes electrically charged atoms (ions) travel from one point to another, creating electrical current. It does this by: Having one positively charged electrode (cathode), and one negatively charged electrode (anode) in which the ions travel. In the middle you must have a material for the ions to