Energy from waste (EfW) facilities are more than just waste management infrastructure, they’re tightly regulated systems designed to protect public health and the environment. In Ontario, EfW facilities cannot operate without passing one of the most rigorous oversight processes in Canada. Here’s what you need to know about how facilities like Emerald Energy from Waste are approved, monitored and held accountable.
Environmental Assessment and Approvals
Any expansion or new development of an Energy from Waste (EfW) facility in Ontario must comply with the Environmental Assessment Act. For Emerald’s expansion, this meant completing a full Environmental Screening Report that assessed potential effects on air quality, waste, noise, traffic, human health, and the natural environment. Public consultations, such as open houses, public liaison meetings, and Indigenous engagement, were required for the approval process. Once the Ministry of the Environment, Conservation and Parks accepts the screening, the project can move forward to securing additional environmental permits.
Environmental Compliance Approvals (ECAs)
Under the Environmental Protection Act, Emerald Energy from Waste must hold Environmental Compliance Approvals (ECAs). These approvals govern waste handling, processing, air emissions and noise pollution. Emerald currently operates under ECAs issued in 2021 for both waste processing and air/noise emissions. Before the expansion, new approvals must be granted to ensure all emissions remain within Ontario’s Ambient Air Quality Criteria (AAQC) and federal standards.
Air Quality and Pollution Controls
Air emissions are among the most closely regulated aspects of the energy from waste process. Emerald must demonstrate detailed dispersion modelling and independent risk assessments. These assessments determine that contaminants such as particulate matter, nitrogen oxides, dioxins, furans, and heavy metals remain below health-based benchmarks. Emerald’s Air Pollution Control (APC) system is specifically designed to capture these pollutants before they are released. Additionally, continuous monitoring ensures everyday compliance during EfW operations.
Ongoing Monitoring and Reporting
Following regulations doesn’t stop once the new facility is built. EfW operators must conduct ongoing monitoring of stack emissions, stormwater and other environmental factors. These tests often require third-party verification. The Ministry of the Environment, Conservation and Parks can audit or inspect facilities at any time, and results must be reported publicly. Emerald is also committed to transparency through its Public Liaison Committee, which keeps residents and stakeholders informed, engaged and a part of the process.
Why Does It Matter
Ontario faces a waste management problem with local landfills projected to reach capacity within the next decade. EfW offers a way to reduce landfill use while producing energy under strict environmental safeguards. The regulatory framework in Ontario ensures that facilities like Emerald are held to the highest standards. Protecting air quality, water and community health are always our top priority, while also delivering essential waste and energy services.

