The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Happened as dated, per mashable.com: "…rice for the pods, but says it plans to begin taking pre-orders later this year with the first units…"
New Atlas reports "An initial run of 50 is being sold this year and more are planned for 2019," with delivery "promised for 2018" - vaguer than the pin's specific December 2017 date, and the piece itself is skeptical the timeline will hold.
Inhabitat, published June 2017, states the company planned "to deliver the first Ecocapsules to clients later this year" (2017), broadly supporting the pin's late-2017 date without pinning down the specific December week.
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.
And the report is probably unrealistically conservative about wind power.