As we wrap up this series on cleantech and defence, there’s one concept that sits at the center of the opportunity:
Dual-use technologies.
These are technologies developed for commercial markets that can also be applied in defence and security contexts—often with little or no modification.
For Canadian cleantech companies, this is not a niche idea.
It is one of the most important—and underdeveloped—pathways to scale.
What do we mean by “dual-use”?
Dual-use technologies are not built for the military.
They are built to solve real-world problems—energy, water, materials, infrastructure—and happen to deliver mission-critical capabilities in defence environments.
Think about it:
- Microgrids and energy storage → Resilient power for remote bases
- Water treatment systems → Autonomous, secure water supply in-field
- Waste-to-energy solutions → Reduced logistics and fuel dependency
- Advanced materials → Lighter, more durable, and more efficient equipment
- Methane reduction and monitoring → Operational efficiency + emissions intelligence
These are not theoretical overlaps.
They are direct operational advantages.
Why this matters now
Canada is entering a period of significant defence and industrial investment, with a growing focus on:
- Resilience
- Arctic and northern operations
- Supply chain security
- Domestic industrial capacity
At the same time, Canadian cleantech companies are:
- Capital constrained at early growth stages
- Looking to scale beyond Canada
- Seeking anchor customers and validation environments
Dual-use is where these two realities meet.
Military bases are the bridge
As discussed in earlier posts, military bases operate like small cities.
They require:
- Reliable energy
- Water and waste systems
- Transportation and logistics
- Communications and infrastructure
This makes them ideal testbeds and early deployment environments for cleantech solutions.
Not because they are “green”— but because they need to be resilient, autonomous, and efficient.
The opportunity for Canadian cleantech
For cleantech companies, engaging with the defence sector can unlock:
- Early domestic procurement opportunities
- Demonstration and validation at scale
- Stronger export positioning with allied nations
- Access to new funding streams tied to defence and security
In many cases, these opportunities do not require a pivot— just a reframing of existing capabilities.
The gap we need to close
Canada has the technologies.
Canada has the need.
What’s missing is the connection.
To fully unlock this opportunity, we need to:
- Explicitly integrate cleantech into defence policy and procurement
- Create pathways for dual-use demonstrations on military bases
- Align funding programs to support commercial-to-defence transitions
- Better connect cleantech companies with defence stakeholders
Final thought
Cleantech is often framed as an environmental solution.
But in today’s world, it is also:
A resilience solution.
A security solution.
An industrial strategy.
Canada has an opportunity to lead at this intersection.
Now is the time to connect the dots.