A limit on emissions, not a ban on fuels
The regulations are technology-neutral. Rather than prescribing which generators provinces and territories must build, they prohibit emissions above an annual emissions limit for covered fossil-fuel-fired electricity generating units. The limit is set per unit based on its generation capacity, and it includes flexibility mechanisms so provinces can keep electricity reliable and affordable while decarbonising.
This is the key nuance: the CER does not outlaw fossil-fuel generation overnight. It phases down its emissions on a defined timeline. Environment and Climate Change Canada (ECCC), which administers the rules, spent years consulting — over 300 interested parties and more than 850 formal submissions — and explicitly reworked the design after provinces raised legitimate reliability concerns.
Why building operators should pay attention
The regulations target generators, but their success depends on the demand side. Ottawa's own assessment says it plainly: to prevent emissions from rising as cars, buildings and industry electrify, Canada will need far more electricity than it uses today. The assessment names demand-side management, distributed energy resources, energy storage and dynamic pricing among the complementary measures that make a clean grid work.
In practical terms, a grid that leans on wind, solar and interprovincial flows — with fossil plants running under tight emissions caps — needs demand that can move. Every megawatt of flexible load in a commercial building is a megawatt the system does not have to procure at a peak price or cover with peaking generation.
A Canada of different grids
The CER applies coast to coast to coast, but provinces start from very different places: Québec, British Columbia and Manitoba run largely on hydro; Ontario blends nuclear, hydro and renewables; Alberta and Saskatchewan still lean heavily on natural gas, which is exactly why the federal design had to bend toward flexibility. For operators with portfolios spanning provinces, the trajectory is the same, but the local electricity mix — and the price signals — will differ.
What to do now
The 2035 date may feel distant, but flexible assets take years to plan, retrofit and integrate:
- Map your flexible loads. HVAC systems, electric vehicle chargers, thermal storage, domestic hot water and lighting are the usual suspects. Know how much each can shift, and for how long.
- Enrol in demand-side programs. Dynamic pricing and demand response offerings from utilities reward buildings that shed or shift load — and they are set to grow in importance under the CER trajectory.
- Automate the response. Manual curtailment does not scale across a portfolio. Orchestration platforms — for example, software like Tenergen OS that coordinates HVAC, EV charging and thermal storage from one dashboard — turn a list of flexible devices into a dispatchable resource.
- Track the milestones. The rules tighten toward 2050; treat 2035 as the first hard checkpoint, not the finish line.
The bigger picture
The CER sends a decade-long policy signal: clean electricity is the platform for everything else — transport, heating, industry. Buildings that can consume it flexibly will not just comply with the future; they will help make it affordable. And grid operators facing the reliability challenge of a net-zero system will increasingly value every kilowatt-hour that arrives exactly when the grid needs it least.