home-battery / Green Building & Sustainable Home Renovation Information & Advice

Product of the month: Aquion’s Aqueous Hybrid Ion saltwater home batte
Renewable energy

Aquion’s saltwater home battery

Updated: Aquion as a saltwater battery is no longer available in North America having moved to China after being bought out. But we've heard about a Dutch company who are starting to commercialize something similar - subscribe to the EcoHome newsletter here and be the first to find out when salt water batteries are ava...

Lithium-ion solar home battery
Solar photovoltaic

Lithium-ion solar home batteries

Home battery systems have recently improved in two substantial ways, and the first big improvement is in the batteries themselves. Lithium-ion batteries on the market today are much more robust and functional than the lead-acid batteries we have relied on in the past. Discharging a lead-acid battery beyond 50% capacity...

Off-grid home with solar PV & Battery backup
Off-grid and Net-Zero Housing

Thinking about renewable home energy and a battery backup?

Heating when the grid is down: Beyond lighting, cooking and general home operation, the biggest risk to home comfort and security in a power outage is not being able to heat your home. Lighting with candles and eating a cold dinner is manageable, but not being able to keep your house warm in winter is another matter al...

How radiant floors work
Delivery: radiant, forced-air and decentralized

How to design for thermal comfort in a home

Have you ever noticed that at times you can feel cold in your home even though the air temperature is exactly where you like to keep it? That's because, contrary to what most of us think, air temperature is not the main factor that determines human comfort in a building. To illustrate a point, let's start outdoors. I m...

Off-grid and Net-Zero Housing

A Toronto Off-grid home 20 years later; how did it fare? How could it be optimized?

In 1996, this off-grid house designed by architect Martin Liefhebber was one of two concept homes selected by the Canada Mortgage and Housing Corporation (CMHC) as part of their Healthy Housing Design Competition. What was to be built was a three-bedroom semi-detached home on a small lot in downtown Toronto, And beyon...

Solar panel reflectors
Solar photovoltaic

Using reflectors to increase the yield of solar panels

The continuing drop in cost for home solar power generation has led to a dramatic increase in the rate of installations, for both residential and commercial use. Increasing the yield through reflection could make that an even more affordable energy supply option. Most of the advances in solar power production come from...

How solar panels work
Solar photovoltaic

All about solar panels - the different options and how they work

Going solar at home is more straightforward and affordable now than ever before, with areas throughout Canada experiencing a jump in residential solar power installations in the past few years. If you’re thinking about taking the leap into renewable energy in your own home but don’t feel you have enough information abo...

Thermal batteries for passive solar design
Efficient home design

Thermal batteries: how to passively store heat

What is a thermal battery? Thermal mass of any kind can by definition be called a thermal battery, as it has the ability to store heat. In the context of a house, that means dense materials like bricks, masonry and concrete. Even a jug of water sitting in a sunny window is a thermal battery of sorts as it captures and ...

Ecohome's passively heated Edelweiss House
Efficient home design

Are better insulated homes worth the money?

There are probably only two general desires we share when imagining a dream house - we all want the nicest one possible for the least amount of money. And we want both of those things right away, rather than waiting a lifetime to see the 'payback' for noble design choices we might have made to save polar bears, bees, p...

Understanding sound transmission in homes
Insulation and soundproofing

Understanding sound transmission in buildings

Before embarking on any structural changes, it is most important to understand that the sound isolation between two homes is not determined only by the common wall or floor. All the other parts of the construction - side walls, ceilings, floors under walls - can transmit sound. Flanking sound transmission (see below), ...

Efficient home design

Phase change building materials - natural heat storage in buildings

  This article was inspired by a podcast I heard at Positive Energy, where I have yet to hear a podcast that I didn't want to listen to a second time, so check them out if you're like me and you think listening to building science  makes mundane tasks like folding laundry a joy. This particular episode was about phase ...