The Aldi store in Mandurah is being fitted out with solar panels as the budget supermarket moves towards renewable energy.
Aldi is currently reviewing its remaining stores including Halls Head and Lakelands, both situated within shopping centres, for suitability.
Aldi plans to install solar power at 250 of its 555 stores in Australia by the end of the year.
This would account for 15 per cent of the energy used across Aldi's supermarkets.
Aldi Australia spokesperson Adrian Christie said that this pivot to renewable energy had been years in the making, with the first installation of solar panels at an Aldi store taking place in 2015.
"It makes great sense for the environment to lower our emissions," Mr Christie said.
"It also makes commercial sense to invest in solar technology."
ANU renewable energy expert Professor Andrew Blakers said it was encouraging to see Aldi's push for solar panels.
"They're making a statement about their values and that's actually more important for a company like Aldi where there are a lot of customers," he said.
The budget supermarket chain is not only focused on saving resources. Aldi forecasts financial savings from the solar investment.
Mr Christie says the solar power generated accounts for one-third of the store's monthly electricity bill, and the investment in solar technology would pay itself off in three years.
Aldi also has established 10-year deals to source energy from two wind farms to cover the rest of the stores' power.
"Fifteen per cent of the energy comes from those rooftops," he said.
"So to make up the balance to make sure [these] stores are 100 per cent renewable, 40 to 46 per cent will come from two wind farms."
However, the company is only only able to control the power on real estate owned by Aldi.
"Phase two of our solar we will explore how we can put solar installations in our long-term lease held properties," Mr Christie said.
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Professor Blakers said negotiations with corporate landlords on renewable energy were crucial.
"Aldi has to explore a business model that works if they are leasing the business," he said.
"This is a matter of working out a good leasing arrangement, so that if Aldi moves, on the next business inherits those panels."
Mr Christie said the organisation was in a privileged position where the company could set long-term goals on sustainability.
"We have a responsibility not just in how we operate our business but through the supply chain," he said.
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"That stretches everywhere from the environment to other topics like modern slavery and we are very conscious of the impact we are having."
Professor Blakers said that businesses should lead by example by turning to renewable energy and encouraging their customers to consider the environment.
He suggested Aldi put in measures such as electric car spots in car parks to encourage customers to consider their carbon footprint.
"Companies are made of people, people will suffer the consequences of not taking strong action on climate change," he said.