energy efficiency

Saint Andrew's United Church Steps Up



People all over Edmonton are waking up to the fact that we’re in the midst of an environmental crisis. It’s good to remember this once in a while, as we go about life in this city of the one driver per car. Some good citizens at Saint Andrew’s United Church are trying to make a difference. They’ve paid some attention to their church building “through regulated use of more efficient heating, installation of low-flush toilets and replacing doors and windows with more energy-conserving models”.  Now they’re trying to reduce the amount of single-occupancy church commuters through Operation Carpool, “a program designed to help our congregation reduce emissions and fuel consumption by having fewer cars pull into our parking lot on Sundays”.

They’re also keen to share their knowledge through “offering tours and workshops to other churches and non-profit groups”.

We’ve started a new section here at Green Edmonton called “Initiatives”. It will highlight and document organizations that are making concerted efforts in the right direction. Congratulations to Saint Andrew’s Church for their positive initiative.

Alberta Joins the Ranks of Eco-Rebate-Friendly Provinces

BC may well be the best province to live in when it comes to available federal and provincial support for greening your home.

Sales tax exemptions on Energy Star windows, insulation and more, plus Livesmart BC - a rebate program that matches federal Ecoenergy rebates for BC residents, all make living greener more affordable out West.  read more... »

How Much Energy Does It Take To Supply Hot Water?

I read an interesting article recently about how to calculate the size of an on-demand hot water heater.  OK, while not exactly what most people would consider light reading, what I thought was interesting was how much energy it takes to generate something we take for granted.  The article discussed how running a single shower would require the incoming water to absorb energy at a rate of about 75,000 BTUs per hour and that if the tankless water heater was 80% efficient, then the heater would need to have a rated input of 94,000 BTUs per hour.  If you want the ability to run two showers simultaneously, then the numbers double so that the tankless water heater would have a rating of 188,000 BTU.  (For reference, the boiler I have for heating my house and domestic hot water can modulate  read more... »

Pipe Insulation


I spent the afternoon putting pipe insulation on the hot water pipes in the Mill Creek NetZero Home (MCNZH). I can’t believe how cheap the insulation was – around $100 for the whole house. Its price and the ease with which it is installed make it a must, in my opinion, for those interested in energy efficiency. Anyone can install this stuff, and the insulation is so useful because it just sits and works, saving you energy every single day and never breaking.  read more... »