District Energy in Richmond intends to implement SHRSome of these new District Energy Systems are starting out with natgas and evolve to other fuel sources that emit less GHG's. I hadn't realised how flexible they are in switching and/or using multiple sources.
Here is a definitive statement found on the City of Richmond's website regarding the newest DES in that city 'City Centrer' and refers to the SHARC they already installed at the Gateway Theatre and at Olympic Village/False Creek
The ultimate source of energy for the area is intended to be heat recovered from the sewage system. Sewage heat recovery is an innovative technology with similar applications used today at Richmond’s Gateway Theatre and Vancouver’s Neighbourhood Energy Utility.
https://www.richmond.ca/sustainability/energysrvs/districtenergy/DistEnatCity.htm Explore implementing innovative technologies throughout the community: Staff continues to evaluate opportunities to implement innovative technologies like sewer heat recovery in partnership with other businesses and institutions in Richmond’s community.