Some details from an older article:

The facility could process up to 150,000 tonnes of green waste such as food scraps and yard trimmings, and create high-quality compost for community gardens and urban farming, as well as renewable natural gas that could be sold for profit,

The GROW facility would replace the current city requirement for processing green waste in a private composting facility in Delta, which staff say is one of “very few” green waste processing facilities in Metro Vancouver

Heat generated from composting and other processes at the GROW facility could be used at the nearby Metro Vancouver Waste-To-Energy Facility and a proposed District Energy Utility nearby.

The Fraser Foreshore Park location is “the only site option to meet the required criteria,” according to the report.

Staff say the location isn’t currently used for recreational purposes and noted the location options for the plant were “limited” since the requirements included a large site size and “distance from residential areas to minimize operational impacts, such as noise, odour and traffic.”

It's unfortunate that they left all that stuff out of this writeup, from the headline it sounds like this is no different from Doug Ford trying to sell the protected Toronto greebelt to property developers. It is different, they're proposing taking 12% of a park to create an environmentally-friendly green waste facility which can't really be built anywhere else in Burnaby. I don't use that park so I don't really have a horse in the race, but it at least seems like a project worthy of serious consideration.