Business case

Costco Australia: a solar canopy portfolio

Every Costco warehouse car park in Australia, mapped, sized and priced. One uniform design, factory-built at Braemar, NSW, delivered in stages across the network.
Canyon solar canopy over a commercial car park
Canyon solar canopy, IGA Baranduda VIC. A Canyon Solar delivery.
13
Sites sized
~21.7 MWp
Portfolio potential
~7,000
Covered members' bays
$0
Upfront option

Two sites, drawn and priced

Two Costco warehouses taken from aerial to a canopy drawn to scale on the real car park, then priced on Canyon's delivered cost base. These are preliminary and subject to site assessment, but they show the real shape and the real numbers, and the low cost per watt that comes with covering a car park this size.

Costco Casula, canopy drawn to scale on the site
Costco Casula, NSW
4,542 modules · 129 columns · full car-park coverage
3.39 MWpSystem size
14,107 m2Coverage
$1.73/WStructure + install (base)
$5.86MBase, ex-GST
$2.92/WTurnkey incl. battery + EV
$9.90MTurnkey total, ex-GST
Costco Kilburn, canopy drawn to scale on the site
Costco Kilburn, SA
3,570 modules · 104 columns · full car-park coverage
2.79 MWpSystem size
11,599 m2Coverage
$1.75/WStructure + install (base)
$4.87MBase, ex-GST
$3.19/WTurnkey incl. battery + EV
$8.90MTurnkey total, ex-GST

Preliminary pricing, ex-GST, subject to site assessment. Base is the solar canopy structure supplied and installed; the turnkey figure adds a 5,000 kWh battery and 40 EV chargers. Full preliminary-pricing proposals are available for both sites.

Built in a factory, proven in retail

Canyon Solar is Australia's leading modular solar canopy manufacturer. Founded in 2021 by mechanical engineer Will Beaumont, Canyon factory-builds 80% of every canopy at its Braemar, NSW facility, then crane-deploys the finished pods into live car parks. Every pod arrives with panels installed, waterproofing, lighting and EV-ready conduit as standard, backed by a 10-year structural warranty on a 30-year design life.

16
Projects, three states
3,170 kWp
Installed capacity
1,023
Car spaces covered
20 MWp
Annual factory capacity

Retail is where Canyon has delivered. Six solar canopy projects delivered or in delivery for Woolworths, plus IGA, Wests Illawarra Leagues Club, AstraZeneca, CSIRO and AGL. Live retail car parks are the hardest environment in the business: customers keep arriving, and the doors never close. That delivery record is also why our analysis of what shade does to retail revenue is grounded in measured data rather than theory.

Costco already knows this works. Costco warehouses in the United States operate solar carport canopies, including Kahului, Hawaii, where the canopy meets a significant share of the store's annual demand. And the Australian network has already invested in solar: warehouses including Marsden Park and Kilburn carry rooftop arrays today. The car park is the obvious next step, and the one that also improves the member experience.

Fifteen warehouses, one format

Thirteen sites carry large, uniform surface car parks suited to solar canopies; two remain under measurement. The format repeats almost identically across the country, which is exactly where factory-built canopies are strongest: one design, engineered once, rolled out state by state.

WarehouseStateEst. covered baysEst. capacityIndicative range
CasuarinaWA~826~2.6 MWp$5.9M to $7.2M
Lake MacquarieNSW~674~2.1 MWp$3.8M to $4.6M
Marsden ParkNSW~635~2.0 MWp$3.5M to $4.3M
BundambaQLD~635~2.0 MWp$3.8M to $4.7M
ArdeerVIC~629~1.9 MWp$3.7M to $4.5M
MoorabbinVIC~577~1.8 MWp$3.4M to $4.2M
KilburnSA~565~1.8 MWp$3.5M to $4.3M
EppingVIC~542~1.7 MWp$3.2M to $4.0M
CasulaNSW~481~1.5 MWp$2.7M to $3.3M
Perth AirportWA~468~1.4 MWp$3.4M to $4.2M
Majura ParkACT~371~1.1 MWp$2.2M to $2.7M
North LakesQLD~329~1.0 MWp$2.1M to $2.6M
AuburnNSW~271~0.8 MWp$1.6M to $2.0M
Portfolio~7,000~21.7 MWp$43M to $53M

Coomera and Ringwood are excluded pending site measurement and format review. Figures are desktop estimates from aerial data, indicative only and subject to site assessment.

More than a power project

A solar canopy earns its keep four ways at once. The energy is only the first layer.

Annual service fee, whole portfolio (10-year agreement)
$7.7M/yr
Layer 1 + 2: energy and EV charging
Energy $6.0M
EV $1.2M
Layer 3: shade uplift added, total value $33.2M/yr
$6.0M
$1.2M
Shade uplift $26.0M

Layer 1: energy. Roughly 30 GWh a year across the portfolio, generated where it is consumed. Energy alone covers 77% of the portfolio service fee; energy plus EV covers 93%.

Assumes: site yields of 1,300 to 1,550 kWh per kWp by city; 100% of generation consumed on site (refrigeration and seven-day trading); state C&I tariffs of 17c to 24c per kWh, to be corrected with Costco's contracted rates.

Layer 2: EV charging. Each canopy ships EV-ready. A standard block of eight 22 kW chargers per site earns charging revenue and positions each warehouse for the members who increasingly arrive in EVs.

Assumes: 8 chargers x 22 kW per site at 20% utilisation, sold at $0.50 per kWh, counted net of the energy cost; charger hardware included in the funded capex.

Layer 3: the shade itself. Measured Australian retail data from stores with shaded car parks indicates a sales uplift of around 1.8%. This case applies 1% on a deliberately trimmed $200M per-store revenue estimate: $2M per warehouse per year.

Assumes: 1% uplift against the 1.8% measured; $200M per-store revenue, trimmed from the ~$330M average implied by reported Costco Australia revenue to exclude fuel and membership income.

Layer 4: the platform. The structure itself is infrastructure. It carries batteries for demand management, outdoor advertising panels at high-traffic store entrances, CCTV and security lighting across the whole car park, and headroom for EV expansion as the fleet grows. None of this is priced into the case; all of it rides on the same steel.

The margin of safety. With three layers counted, the portfolio returns about 4.3 times its service fee. And the shade claim barely needs to be true: after energy and EV, the hardest site on the list needs a sales lift of just 0.092% to break even, one twentieth of what the retail data shows.

Also never counted: real estate asset value, hail and weather protection, customer dwell time. All figures indicative, ex-GST.

The Grand Canyon

For a flagship site like a Costco warehouse, the standout option is Canyon's newest design, the Grand Canyon: a continuous, portal-frame canopy that covers every bay and every driving lane with a single, unbroken solar roof. There are no gaps over the circulation, which gives the highest solar density of any canopy in our range and makes the car park read as architecture rather than infrastructure.

Grand Canyon continuous solar canopy, aerial view with battery and EV charging
Grand Canyon · a continuous full-coverage canopy, with integrated battery and EV charging

Every bay and lane covered

One continuous roof

A single roof across the whole car park. Patrons walk dry and vehicles stay shaded, with no exposed circulation between the rows.

Highest solar density

Portal-frame geometry

Because the frame covers the driving lanes as well as the bays, it pushes the kWp per square metre above anything a wing-style canopy can reach.

A premium arrival

Architectural roofline

Integrated LED lighting under a clean roofline, with battery and EV charging built in. It reads as a considered customer space rather than a utilitarian add-on.

Two ways to buy

Own the asset (CAPEX)Hardware as a service (OPEX)
Upfront cost$43M to $53M portfolio, staged by site$0
StructureCostco owns the canopies outright10-year service agreement per site, 15-year option; funder-owned
The energyAll generation is Costco'sAll generation is Costco's
Annual position~$7.2M/yr energy and EV value; payback in under 9 years on energy alone, far faster with shade value~$33M/yr total value against a ~$7.7M/yr fee
After the term30-year design life throughoutExtend, or acquire the asset within its 30-year design life
Balance sheetOnFunder-owned asset

Canyon facilitates the service structure through independent funding partners; buy direct, or pay from the savings. Either way the asset is engineered, factory-built and installed by the same team that has delivered 16 projects across three states.

Suggested next step. A 45-minute working session with your construction and property team: validate the site list against your estate plan, correct the tariff and revenue assumptions with real figures, and select two or three sites for full engineering assessment.