Without large-scale storage, Ontario’s economic revival will stall
Key takeaways
- Ontario’s plans for more factories, data centres and electrified transportation only work if the province has far more reliable electricity than it does today.
- Electricity demand could more than double by 2050, which means the current grid will be under serious strain and more vulnerable to outages if nothing changes.
- Building more power plants alone will not fix that, because electricity supply runs steadily while demand rises and falls throughout the day and year.
- Battery storage saves extra power and releases it when demand peaks, helping keep the lights on and making economic growth possible without overloading the grid.
What’s this?
Imagine a future where Ontario is at the forefront of a domestic manufacturing revival, or at the epicentre of the AI revolution.
Advanced manufacturing, cutting-edge R&D, state-of-the-art IT infrastructure, data centres and cloud computing. It’s a vision of a new era of creativity, prosperity and productivity.
But none of it happens without power.
Any such revival will require enormous amounts of electricity, on top of rising demand on an already strained grid. Without a dramatic increase in reliable power, the entire vision collapses.
Ontario’s Independent Electricity System Operator, the Crown agency that manages the province’s power grid, projects that electricity demand could more than double by 2050 as transportation, industry and heating shift toward electrification. But adding more energy-intensive industries means that simply doubling capacity will not be enough.
Meeting that challenge requires more than building new power plants. It requires flexibility built into the grid itself. The most effective way to achieve that is battery storage, which captures electricity when supply exceeds demand and releases it when demand rises.
Battery storage is essential if Ontario is to expand its grid without sacrificing reliability.
Hydroelectric capacity can and should be expanded. Ontario Power Generation estimates that there are some 4,000 megawatts of untapped power throughout the province, enough to power 3.5 million homes. But such projects take time, often five to 15 years each. Ontario does not have the luxury of waiting decades for relief.
Environmental concerns and Ontario’s legislated emissions-reduction targets mean we cannot return to coal, phased out in 2014, or simply build new LNG plants. Renewable energy must play a major role, but wind and solar are inherently intermittent.
That is not ideology. It is physics.
Nuclear power should be expanded and existing plants refurbished, yet it operates most efficiently at steady output. Demand, however, rises and falls by the hour and by the season.
That mismatch between steady supply and fluctuating demand creates two risks: not enough power when demand peaks, or excess power that goes unused. The first means brownouts or blackouts. The second means waste. Both hold back economic growth.
Battery storage resolves that tension by absorbing surplus electricity from wind, solar or nuclear plants and sending it back to the grid when demand is highest. Instead of adding more standby gas capacity, Ontario can build flexibility into the electricity system itself. This is basic grid infrastructure that strengthens reliability, not just output.
The same principle applies closer to home. Battery storage can operate at the level of an office building, hospital, community centre, neighbourhood, apartment building or individual home. Think of it as the modern replacement for a generator during a blackout: cleaner, quieter and able to feed unused power back into the grid.
Scale that model. A house equipped with solar panels and a battery becomes largely self-sufficient. A neighbourhood of such homes effectively functions as a small power plant, supplying itself and contributing energy when the wider grid needs it. AI and cloud-based systems can manage output and storage, creating local jobs for installation, inspection and maintenance.
As climate change is linked to more frequent extreme weather events, reliability moves from convenience to necessity. More frequent outages will demand dependable backup power. Battery storage strengthens both the provincial grid and individual buildings, providing backup power without fossil-fuel generators.
It also offers clear advantages over traditional gas-powered backups. Batteries are safer, cleaner and quieter. They start instantly, recharge quickly and can be repurposed or recycled at the end of their lifespan.
Ontario’s economic ambitions depend on abundant, reliable and affordable electricity. Advanced manufacturing and industrial renewal will not run on aspiration alone. They will run on power. Battery storage is central to delivering that power consistently and intelligently. Without deploying it aggressively and at scale, the province’s economic revival will remain out of reach.
David Parry is managing partner of Malahat Battery Technologies Corporation.
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