Is Your Car Park Suitable for a Solar Canopy? A Site Feasibility Checklist

There is no single pass or fail test. Instead, a handful of practical factors determine how straightforward an installation will be and how much energy your canopy can produce. Some are about the space itself, such as size and orientation. Others sit below the surface, like ground conditions and underground services. The rest come down to how the system connects to your power supply and what you want it to do in the future.

Run through the nine areas below. If most of them look workable, your car park is almost certainly a strong candidate.

 

 

1. Car park layout and available area

Start with the obvious. How much usable parking area do you have, and how is it arranged?

Larger, open car parks with consistent rows of bays are the easiest to work with, but smaller and irregular sites can still be excellent candidates thanks to widespan designs that cover more area with fewer columns. The key is that support columns are positioned along bay lines and islands so they sit between vehicles rather than inside parking spaces. Done properly, you lose no car spaces at all and stay compliant with Australian Standards for car parks.

Look for: rows of standard bays, room to position columns without removing spaces, and a footprint large enough to justify the structure (even modest car parks of around 30 spaces can support a worthwhile system).

 

2. Orientation, shade and sun exposure

Orientation drives how much energy your canopy generates. In Australia, panels facing north capture the most sun across the year. East to west arrangements are also very effective and have the advantage of spreading generation across the morning and afternoon, which often matches when a business actually uses power.

Here is the part that surprises people. Unlike rooftop solar, a car park canopy is a purpose-built structure, so the panels can be set at an optimal tilt and orientation regardless of how the ground sits. A flat car park is not a problem.

The factor to watch is overshadowing. Tall neighbouring buildings, mature trees or other structures that cast shade across the site for large parts of the day will reduce output, so they are worth noting early.

Look for: open sky above the car park, minimal overshadowing from buildings or trees, and a clear northerly or east to west aspect.

 

3. Traffic flow and site access

A solar canopy is a construction project, so access matters in two ways.

During the build, the team needs room to bring in materials and operate cranes and machinery to install columns, beams and panels. Most installations are staged so the car park keeps running with only sections closed at a time, which keeps disruption low. A site with reasonable access points and some flexibility on staging makes this smoother.

Once it is built, the canopy needs to maintain safe traffic flow underneath, including clearance heights for the vehicles that use the space. If trucks, vans, emergency vehicles or waste collection need access, the design accounts for the required headroom and turning room.

Look for: access for construction vehicles, the ability to stage works in sections, and clarity on the tallest vehicles that need to pass underneath.

 

4. Existing lighting and electrical infrastructure

Your car park almost certainly has lighting and a power supply already, and both are relevant.

A canopy is an ideal place to integrate lighting, and many owners take the opportunity to upgrade to efficient LEDs at the same time, powered by the solar system itself. That improves safety and the look of the space while keeping running costs down.

The condition and location of your existing switchboard and metering also feed into the design, since the new system needs to tie in there.

Look for: existing lighting that could be integrated or upgraded, and a switchboard that is accessible and in reasonable condition.

 

5. Drainage and water management

Adding a large canopy changes how water moves across your car park. Rain that used to fall evenly will now run off the structure, so the design needs to manage that properly with guttering and downpipes that direct water to the right place. This avoids pooling and keeps the area underneath dry and usable.

It also creates an opportunity. Captured rainwater can be collected into tanks and reused on site, which is a nice bonus for properties looking to improve their environmental performance.

You will want the design to align with your local stormwater requirements, which is something the SCP team handles as part of planning.

Look for: an understanding of where water currently drains, any existing pooling issues, and whether rainwater capture would be useful for your site.

6. Underground services and utilities

This is the factor people forget. A canopy is held up by footings that sit below ground, so the team needs to know what is already down there. Water and gas pipes, electrical cables, communications lines and stormwater infrastructure all need to be located before any digging begins.

This is exactly why a proper feasibility process includes subterranean scanning and data collection. Knowing the location of underground services upfront means footings are positioned safely and there are no nasty surprises mid install, which is central to delivering on a fixed price.

Look for: any known underground services, site plans if you have them, and an awareness that scanning will confirm the rest.

7. Ground conditions and geotechnical factors

What the ground is made of determines how the footings are designed. Stable soil, reactive clay, fill, rock or a high water table each call for a different footing approach.

A geotechnical assessment tells the engineering team what they are working with so the structure is safe, compliant and built to last in Australian conditions. It is a standard part of the process and rarely a dealbreaker, it simply informs the design.

Look for: any history of ground movement or drainage issues on the site, and previous geotechnical reports if any exist.

8. Grid connection and capacity

How your canopy connects to power shapes both the design and the financial return.

The first question is what you want the energy to do. Many owners use the power on site to cut their own bills, which is usually the simplest and most valuable option. Others feed energy into an embedded network or microgrid to create a return on the resale of that energy, which can add an income stream to the property.

Either way, the system connects through your existing supply, so your switchboard capacity, whether you have three phase power and any network export limits all come into play. Larger systems may need approval from your local network provider, which the team manages as part of the connection process.

Look for: your current supply type, a sense of how much energy you use on site, and whether you would prefer to offset your own usage or explore energy resale.

9. Future EV charging needs

Even if you are not adding EV chargers on day one, it is worth planning for them now. Demand for workplace, customer and fleet charging is rising quickly, and retrofitting cabling and capacity later is far more expensive than provisioning for it during the original build.

A well designed canopy can include the conduits, switchboard capacity and load management needed to add chargers when you are ready. That keeps your options open and protects the investment as the vehicles using your car park change.

Look for: likely demand for staff, customer or fleet charging, and a decision on whether to install chargers now or simply make the site ready for them.

Your quick self-assessment checklist

Run through these prompts. The more you can answer yes to, the stronger your site.

• Do you have rows of standard car parking bays with room to place columns between spaces?
• Is the area large enough to be worthwhile (roughly 30 spaces or more is a good starting point)?
• Does the car park have open sky above it with minimal shade from buildings or trees?
• Can construction vehicles access the site, with flexibility to stage the works?
• Do you know the clearance height needed for the tallest vehicles using the space?
• Is your switchboard accessible and in reasonable condition?
• Do you understand how water currently drains across the site?
• Are you aware of any underground services, or open to scanning to confirm them?
• Do you know your power supply type and roughly how much energy you use?
• Have you thought about whether you want EV charging now or in the future?

If you ticked most of these, your car park is very likely a strong candidate for a solar canopy.

What happens after the checklist

A checklist gives you a sense of where you stand. The next step is turning that into a real design and a clear price.

This is where the SCP process begins. We review your proposed site and use that information to create detailed design options built around your goals. We handle the surveys, the geotechnical information, the underground scanning and the planning, then bring it together into a clear design and a fixed price. Because the groundwork is done properly upfront, there are no surprise costs mid install, and works are staged to keep your car park running with minimal disruption.

You can read more about what the build itself involves in our guide to installing a solar car park.

Find out if your site stacks up

The only way to know exactly what your car park can do is a proper site review, and that is the best place to start.

Book a free site review and our team will assess your site and walk you through the options. Prefer to read first? Download our free brochure for an easy guide to everything we offer, from shade structures and EV charging to microgrid solutions.

Your car park is already one of your largest unused assets. A solar canopy is how you put it to work.