Compressed air, flywheels and more: Energy storage solutions being tested in Canada

In this week's issue of our environment newsletter, we look at more energy storage solutions being tested in Canada and how the city of Barcelona is embracing is wild side. https://www.cbc.ca/news/technology/what-on-earth-energy-storage-compressed-air-flywheel-1.5945923?cmp=rss #news/technology_&_science