Drake Landing shows how you can shift heating from summer to winter. For twenty years it's been heating homes in Alberta, Canada. Though I see now, because it's

Drake Landing shows how you can shift heating from summer to winter. For twenty years it's been heating homes in Alberta, Canada. Though I see now, because it's a one-off, they are having trouble getting replacement parts :(. https://www.cbc.ca/news/canada/calgary/okotoks-drake-landing-solar-energy-repairs-future-1.7148389 https://www.cbc.ca/news/canada/calgary/okotoks-drake-landing...