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You are here: Home / Solar Controllers / Solar battery installations grow as power bills tumble

Solar battery installations grow as power bills tumble

Maggie December 31, 2016

Solar batteries the likes of Tesla’s Powerwall have exploded in popularity, reveals the first nationwide audit, lowering electricity bills by as much as 90%.

Consultancy firm Sunwiz audited solar manufacturers, wholesalers and photovoltaic (PV) retailers, and found more than 6500 Australian households installed a solar battery in 2016 – a 13-time increase on the year before.

The growth spurt is owed to a number of factors, including steep price drops, increased competition and an appetite for cheaper electricity bills, says Warwick Johnston, the founder of Sunwiz.

“Part of it was the significant reduction in prices that occurred, particularly mid way through the year.

I’d say battery prices practically halved. In conservative figures it was at least a 40% drop in the last year.”

Solar batteries are a relatively new category.

Awareness took off when electric car manufacturer Tesla entered the market.

“It spurred a lot of interest and got some volume going,” Johnston told CHOICE. “The Powerwall 2, which doubled capacity and stayed at the same price, caused other manufacturers to follow suit.”The first person to install a Tesla Powerwall in Australia claims he has been seeing an average reduction of 85% on his electricity bills. Nick Pfitzner’s installation works with a 5kW solar array to run his four-bedroom home in Kellyville Ridge, NSW.

“I’ve only gotten the three bills [since it’s installation]. Quarterly, I was probably paying $550 and now it’s around $55 a quarter,” says Pfitzner.

The batteries store excess solar power for use later at night when peak electricity prices are highest.

The setup comes with the right tools to help run a more efficient household, Pfitzner says.

“You get interfaces to look at, including a website.

You get a bit of an understanding of how you use power and what it costs to run each device. I really learned a lot about myself, how my house uses energy and how we can improve with solar now.”

He estimates he’ll save approximately $2000 a year on a solar system that cost $15,990 to install.

The ‘significant’ drop in pricing has made the investment in a solar system a worthwhile consideration for homeowners, says Sunwiz founder Warwick, who believes prices will continue to drop in the next year.

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Source: Solar battery installations grow as power bills tumble

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