That stuff is really, really old - it was from the initial phase of the project that's already well in operation. The borehole at Hayden might be the northern extension for the Government of Ontario and MaRS buildings (though that has been announced for over 2 years - one would think construction for that would have been completed by now).
If the city were to increase its capacity, Enwave could service a larger area. Now imagine if every major office building and condo from Bloor to the waterfront, Sherbourne to Spadina were hooked up, that would be *SOME* district cooling system!
Obviously this is a "Hell Mouth". I thought there might be one around the city ( a lot of evil been goin down of late) but this is the first photo I've seen. I've forwarded it to "The National Enquirer /Midnight Star" and I've put in a call to Buffy. She will save us!