I am aware of that project but had no idea it died.

A little research says it didnt die "because Alberta". It died because it became too expensive to fix and became unreliable, and the houses were converted to natural gas heating. Go figure. From cool to reliable - I rest my case. Albertans at -40c care about reliability.

Wiki: "In 2020, the system started showing signs of deterioration resulting in significant maintenance issues. System components, knowledge, and technical expertise for repairs were becoming increasingly challenging to find. In response to system failures, the Drake Landing Solar Company added redundancies to the system to be sure that homes in the community were receiving heat.

After a thorough investigation on available next steps, it was determined that the significant reinvestment required to have the system operate reliably, was simply something that neither the Drake Landing Solar Company board nor the collective community could afford.

In 2024, a decommissioning process for the Drake Landing Solar Community began, where the majority of the 52 homes were converted to natural gas-fired furnaces."