The chart below illustrates the water use in a typical multi-residential building. Faucet Aerators typically allow 2.2 usgpm flow, but can be as high as 4 to 5 usgpm. Low flow Aerators are available, and range from 0.5 to 1.5 usgpm, with 1.0 usgpm used the most. They are available in Vandal Resistant (need a

How do you know if you are getting value for the money you spend on an energy audit? 1. A Proper Utility Bill Analysis Insist that the auditing firm use software specifically designed for utility bill analysis. It should adhere to the process defined in ASHRAE Guideline 14 – Measurement of Energy & Demand Savings.

What to Look for in a Quality LED

Friday, 11 October 2013 by

With thousands of manufacturers and distributors of LEDs, how does the consumer determine which product to invest in? Cost, average lamp life claims, and warranties vary greatly from product to product, so what helps the consumer steer clear of inferior products? In an effort to accelerate the adoption of the quality Solid State Lighting (SSL)

Project Threat #1 – Scope Creep

Wednesday, 09 October 2013 by

As explained in my previous article (The need for Project Management Professionals) a project is defined by the triple constraint, namely scope, time and budget. These three factors not only explain the project but also quantify its success or failure. In the next series of articles we’ll explain the main threats affecting each of the

Global Adjustment

Monday, 07 October 2013 by

Many electrical bills in Ontario have a line item called “Global Adjustment”. The purpose of this line item is to account for the difference between the market rate for electricity and the rate paid by Ontario to regulated and contracted electricity generators. In theory, this value can be either negative or positive. That is, it

Continuous Commissioning

Friday, 04 October 2013 by

While working on a building’s energy system, it is difficult to refrain from observing other systems. It is often necessary to understand the building as a group of systems working together (or against each other) to implement a proper design. For example, re-sizing a chiller is dependent upon understanding the hot/cold deck arrangement on the

When it comes to energy conservation in existing Health Care Facilities specific expertise is needed to ensure your project goes smoothly right from the beginning of conception, through planning, development, implementation, and into operations. Health Care Facilities (or HCFs) have many design and operating requirements for the heating, ventilation, and air-conditioning (HVAC) equipment and plumbing

“Project Management” is a phrase used often in technical literature. Regrettably many who use the term actually do so incorrectly. To successfully manage a project requires much more than the mundane tasks needed to administer an account. Rather it more appropriate to consider that a successful project requires planning, design and execution. A recent survey

Hybrid electric vehicles and battery electric vehicle ownership is expanding. Building owners need to be prepared for the future of electric vehicles and charging stations. Many employers such as Google, Adobe and SAP in the US are already purchasing and installing charging stations. What do you need to know to be on top of this

Solar PV Third-Party Reviews

Saturday, 28 September 2013 by

What performance should one expect from a photovoltaic system, and how does one evaluate the real-time performance against a 3rd party system? There are many ways to install solar panels. Ground vs. roof mounted, hard tie vs. ballasted, stationary vs. tracking etc. and there are appropriate applications for each. No two installations are the same,

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