District Heating

The Devolution Of Hydrogen For Energy Over 25 Years Is A Fascinating Tale

About 25 years ago, hydrogen was the solution of choice for climate-aware technocrats and politicians, and with good reason. At the time, there really wasn’t much choice in terms of low-carbon energy carriers. Batteries were good enough for laptops and phones, but clearly no one was going to be running … [continued]

Biomass Emissions Question Arises Again

It’s called “urban biomass,” and it’s ours (spsmw.org). Hard to imagine a subject that would find The Wall Street Journal and Grist in line with each other’s thinking, but burning wood for energy has achieved it. Neither outlet seems to view the topic positively. Both have cited the scientific work … [continued]

Enwave Cools Downtown Toronto Elegantly, Thanks to Accident of History

it is a very fortunate accident of history that water made for such easy hauling. Early roads got muddy and it was easier to move stuff along waterways. As a result many big cities like New York City and Hong Kong and Toronto are now ideally situated to use that cold water nearby for carbon-neutral district air conditioning.

These cities now are virtually artificial cliffs, right at waters edge, right where they need to be to take advantage of a very simple concept. Cold water from the depths can be piped very efficiently up through these “cliffs” at water’s edge to cool the towers of downtown office buildings.

Canadian Company Enwave leverages this difference between the cold ocean depths and warm surface temperatures – using lake water to cool downtown Toronto office buildings.