Canaan Inc., a leading Bitcoin mining hardware manufacturer, has launched a proof-of-concept project in Manitoba, Canada, aimed at recycling waste heat from mining operations for agricultural use. The company has partnered with Bitforest Investment to deploy a 3 MW pilot at a tomato greenhouse. The project utilizes 360 of Canaan's liquid-cooled Avalon A1566HA-460T mining units and four cooling modules.
The core of the initiative is a closed-loop heat-exchange system designed to capture roughly 90% of the electricity consumed by the servers as heat. This heat, which outputs water temperatures exceeding 75°C, is then used to preheat intake water for the greenhouse's electric boilers. This process is intended to significantly reduce the facility's direct heating costs, which are critical for maintaining year-round tomato cultivation in Canada's harsh winter climate.
The pilot, which operates under a 24-month agreement targeting 95% uptime, has an all-in power cost of $0.035 per kilowatt-hour. Canaan's Chairman and CEO, Nangeng Zhang, stated the goal is to create a replicable model for making high-density computing operations more efficient and enabling energy reuse. The project will measure heat-recovery efficiency, system stability, and evaluate potential capital savings from eliminating traditional industrial cooling towers.
This development occurs within a broader context of the Bitcoin mining industry's shift toward sustainability. According to Kevin O'Leary, institutional buyers are increasingly demanding sustainably mined coins, driving this green transformation. Furthermore, research from the Cambridge Centre for Alternative Finance indicates renewable sources now power over 52% of the Bitcoin network, a significant increase from 37% in 2022, with natural gas replacing coal as the largest single energy source.
