By Arlene Karidis, Waste 360.
British Columbia is mandated to have 75 percent landfill gas collection efficiency, and to comply with this mandate, landfills are partnering with greenhouses.
One of these landfills, Vancouver Landfill, has formed a relationship with Village Farms International, designers and operators of greenhouses in North America that also sell produce. Vancouver Landfill sells about 55 percent of its gas to Village Farms, which uses it to heat one of its greenhouses while generating electricity for Canadian electric utility BC Hydro.
Heating is among these plant growers’ highest expenses, and they require a lot of energy for a relatively small footprint. Further, they typically prioritize reducing their carbon footprint, so a cheaper, cleaner alternative to natural gas appeals to them.