NOW Magazine - Best of Toronto - - Activism -

ENWAVE’S DEEP LAKE WA­TER COOL­ING INI­TIA­TIVE We love our wind­mill and can’t say enough about the rooftop gar­dens burst­ing out ev­ery­where. A huge num­ber of busi­nesses big and small also de­serve credit for their con­ser­va­tion ef­forts. But it’s Enwave, which counts the city as a share­holder, that’s truly shown us the po­ten­tial for en­ergy sav­ings by tak­ing our largest re­source, the lake, and turn­ing its en­ergy into a nat­u­ral coolant for down­town build­ings. Eight ma­jor of­fice tow­ers have been hooked up since 2004, in­clud­ing the TD Cen­tre and Royal Bank Plaza. The eco benefits have been as­tound­ing. Be­sides re­duc­ing harm­ful A/C emis­sions, the sys­tem frees some 61 megawatts from the over­bur­dened elec­tri­cal grid and re­moves about 79,000 tonnes of car­bon diox­ide from the air – equiv­a­lent to tak­ing 15,800 cars off the road. The best news is that Enwave has barely tapped its po­ten­tial. It has enough ca­pac­ity to chill 100 build­ings.

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