

It should be a great idea, but I feel like the quantities involved are too vastly different.
I’m seeing estimates of 300kW/hectare (30MW/km² or 77MW/mile²) for heating glasshouses. With individual datacentres frequently confirming multiple gigawatts, the land area required just doesn’t match up.
This is not to say it isn’t worth considering, but it would be a rounding error in the datacentre’s heat output before you ran out of space to build more glasshouses.
There’s a secondary concern of water consumption. You might extend that to ah but what if we could use that to grow the plants too? but the evaporated cooling water out of one of these systems tends to be anything but clean. Maybe that’s a more solvable problem.
The facilities team at our office would previously build a C-shaped box out of MDF or plywood to sit a regular, fixed-height desk on top of.
To be fair they did a nice job, they were sturdy and would have recesses for the desk’s legs to sit in to prevent sideways movement. But the problem then became “what about when those people wanted to sit”, so tall office chairs - that didn’t match the rest of the chairs in the office - had to be bought, undoubtedly at considerable expense.
The new, all-standing-desks use-it-if-you-want-or-don’t-it-doesn’t-matter-to-us regime seems to just avoid a lot of unnecessary shifting of furniture.