Energy

One Way Maritimers can Drastically Reduce their Energy Consumption

- Adam Clare
Solar panels on grass

Canada’s Maritime provinces are blustery, cold, and powered by coal. The weather is fine for most people (and lovely in the summer), but they know they need to transition to renewable energy quickly or risk losing more land to the seas and worsening storms due to climate change. The work to get the power grid to be a green one is underway.

Researchers and policy makers are looking into ways to make their power grid more robust by incorporating modern battery technology. The technology varies from smart water heaters to store heat to phase-change energy storage which is gaining popularity around the world.

Several companies in the Maritimes are investigating the possibility of integrating phase-change materials into heat sources to allow more integration of renewables. 

One is Fredericton-based Stash Energy. Dan Curwin, director of business development, said they’ve developed heat pumps with phase-change material storage built in, to store energy from renewable sources like hydro when it’s plentiful, such as overnight, and discharge it in the morning when demand is high, to be stored up again from renewables like solar during the day. 

This can help with the integration of renewables and with greater adoption of electric heat pumps, which are the most efficient heating option but risk overburdening the grid. 

Curwin said the company has partnerships with efficiency agencies across Atlantic Canada and New England, as well as housing authorities such as Housing Nova Scotia that recognize the particular burden posed by heating costs. 

Read more.

Thanks to Mike!

See Through Solar Panels

- Adam Clare
Solar panels on grass

The future is powered by renewables, and the more sources of electricity we have the more resilient our power grid will be. Researches at Michigan State University have created a solar film that can be applied to existing windows to generate electricity from the sun. The system is not as efficient as a standalone solar cell, but the benefits of putting the film on existing windows outweighs the inefficiency. The film is see through which means the windows look like normal windows. Imagine every window in a skyscraper generating a little amount of power or the windows on every electric car.

Back in 2017 MSU profiled Lunt’s work and explained that he and his team “pioneered the development of a transparent luminescent solar concentrator that when placed on a window creates solar energy without disrupting the view. The thin, plastic-like material can be used on buildings, car windows, cell phones or other devices with a clear surface.”

“The solar-harvesting system uses organic molecules developed by Lunt and his team to absorb invisible wavelengths of sunlight. The researchers can ‘tune’ these materials to pick up just the ultraviolet and the near-infrared wavelengths that then convert this energy into electricity,” MSU adds.

Read more.

Thanks to Mike!

Quebec Cancels Planned LNG Operation to Protect the Environment

- Adam Clare

Forest

The waters of the Saguenay and the St. Lawerence have avoided great harm thanks to the cancellation of a massive natural gas facility in the area. People had been protesting the development for years and the government finally listened. The project would have taken bitumen from the tar sands in Alberta across the country to be exported via ships in the Saguenay out to the Atlantic. It’s good to see a project that would have increased carbon output get cancelled in favour of protecting the planet. (Fun fact: I took the photo above along the Saguenay)

In March, the province’s independent environmental review agency issued a report that was critical of the plans to build a plant and marine terminal in the Saguenay.

The project was likely to increase greenhouse gas emissions in Canada by eight million tonnes annually, the agency concluded.

Last month, federal environmental agencies determined the project, which would involve large tankers transiting along the Saguenay River, threatened beluga whales.

And last week, three Innu communities vowed to oppose the project because of the negative impact it would have on the environment.

Read more.

Reducing CO2 Emissions by Targeting the 5% of Power Plants

- Adam Clare

Electric energy production using non-renewable processes produces an immense amount of carbon, and as a civilization we can’t afford to put more carbon in the atmosphere. Researchers from the University of Colorado Boulder set out to figure out how much pollution do power plants actually produce and what can we do about the worst ones. They found that 73% of pollution came from just 5% of power plants, unsurprisingly those plants used coal. So let’s shut them down!

According to the authors of the research, the emission intensity of the ten worst plants exceeded those of other fossil fuel power plants in their home countries in 2018 at a rate 28.2 percent to 75.6 percent higher than their counterparts. This suggests that the plants are very inefficient in burning coal, the research showed.
“Why these relatively inefficient plants are used so heavily is a topic ripe for future investigation,” the authors wrote.

Read more.

Home Water Heaters can Reduce Electricity Production

- Adam Clare

the suburbs

Across North America homes have massive tanks of hot water regardless of the outside temperature or other concerns. The energy cost to heat all this water is immense and not only can we reduce this cost we can use the water itself to power homes. The basic idea is to convert the temperature change in water into energy and vice versa to have the water tanks function has batteries. The coolest thing about this idea is that it’s not even a new one.

Here’s how it works. The heat pump water heater is like a refrigerator running in reverse. Instead of taking heat out of the unit (cooling) and dumping it into the nearby room air, the heat pump water heater dumps heat from the air around it into the water. This is vastly more efficient than heating water in the old way, with a high-wattage electric coil.

There is actually a little-known tradition, going back to the late 1930s, of electric companies managing water heaters to avoid short-squeezes on the grid during times of peak consumption. Because water can be kept hot so long, consumers don’t even notice. Originally this was done with timers, later via radio signals, and today through the cloud. And, thanks to smart meters that track energy use by the minute, demand-shifts can be very precisely targeted and valued. Water heaters, reborn as big thermal batteries, are an excellent means by which lots of clean power can be strategically banked for later use. Hundreds of thousands of water heaters have already been quietly hooked up this way. This is just the tip of the potential iceberg.

Read more.

Scroll To Top