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ZEN Energy wins $1m battery storage tender for SA govt buildings

One Step Off The Grid

In what is believed to be an Australian first, three battery storage systems totaling 512kWh of capacity will be installed at government-owned buildings in Adelaide by local solar and storage specialist, ZEN Energy.

South Australia energy minister Tom Koutsantonis said in a statement on Monday that Adelaide-based company ZEN Energy had winning a $1 million tender to install lithium-ion batteries at three sites around the city: the State Library of South Australia, the Art Gallery of South Australia and Adelaide High School.

State Library of South Australia
State Library of South Australia

Koutsantonis said the sites had been identified as priority projects, offering the greatest potential for high energy cost savings through reducing demand.

For ZEN Energy, the project will contribute to the development of its manufacturing centre at Tonsley Park innovation hun in Adealide, which is designing, manufacturing, factory testing and maintaining ZEN Freedom Powerbank battery systems, pictured below.

As we reported here, ZEN’s reincarnation as Australia’s first dedicated community renewable energy provider, with Ross Garnuat as chairman, was officially launched at Tonsley last October.

freedom_powerbank

It was born out of ZEN Technologies, a decade-old solar and storage company, after founder Richard Turner recognised an opportunity to provide Australian consumers with an option to use 100 per cent renewable energy to power their homes, businesses or entire communities, at a cost cheaper than electricity from the grid.

ZEN also has a share in US energy storage company Greensmith – and Greensmith, in turn, has a share in ZEN Energy – which currently claims a massive one-third of the US energy storage market, including credits for installing the world’s largest energy storage system, at 20MWh.

This, said Turner in October, meant ZEN was “12 months or two years ahead of Tesla, with technology as advanced as Tesla’s, and price competitive with the grid. And …Australian manufactured.”

South Australia, meanwhile, has an ambitious climate strategy, that includes its joint commitment with Adelaide City Council to make Adelaide the world’s first carbon neutral city, and to achieve a 30 per cent improvement in the energy efficiency of government buildings by 2020.

According to Koutsantonis, government-owned and leased buildings contribute more than 15 per cent of overall greenhouse gas emissions in the Adelaide City area.

“Battery storage of renewable energy offers the possibility of capturing that power as it is generated and delivering cheap power around the clock, so advances in the technology are a very exciting proposition for South Australia,” Koutsantonis said.

“This nation-leading initiative will demonstrate how battery storage can play a role in reducing the carbon footprint of large buildings and save governments money over time.”

According to ZEN’s Turner, this particular project will showcase battery’s storage’s key role in managing the total electricity costs of commercial businesses, either stand alone or complemented with solar.

“This is the first demonstration of the significance of energy storage in commercial businesses in Australia,” Turner told RenewEconomy by email on Monday. “It will demonstrate through integrated software a combination of peak shaving and energy arbitrage and significantly reduce the cost of demand charges and energy for these sites.”

The Adelaide City Council is reportedly also contracting ZEN Energy, separately, to install a similar battery storage system at their council works depot.

“Battery storage has transformed the renewable energy sector and opened up a whole new range of possibilities,” said Adelaide Lord Mayor Martine Hesse.

“The project will demonstrate how this technology can be used and encourage private building owners to establish similar systems, so they too can reap the benefits of low-cost, low-carbon energy.”

This article was originally published on RE sister site One Step Off The Grid. To sign up for the weekly newsletter, click here.

Comments

2 responses to “ZEN Energy wins $1m battery storage tender for SA govt buildings”

  1. Finn Peacock Avatar

    “This nation-leading initiative will demonstrate how battery storage can play a role in *reducing the carbon footprint* of large buildings and save governments money over time.”

    Hang on… adding a battery to a building that is connected to the grid will generally add to its carbon footprint.

    Solar will go into the battery instead of out to the grid where it directly offsets grid electricity. 10-20% of the solar will be lost in the roundtrip efficiency of the system, before the solar is used to power the building. And it takes about 400kWh of (usually coal fired) grid electricity to manufacture 1kWh of storage.

    If the batteries only discharge when the % of non-renewables in the SA grid is high, then, yes potentially they can reduce the CO2 footprint a little – but it is very marginal. And I don’t think it will be programmed to do that, it will be programmed to maximise the financial return, i.e. to reduce grid consumption of the building no matter what the energy mix of the grid is when it is discharging? Happy for someone at ZEN to correct me on this.

    1. Jonathan Prendergast Avatar
      Jonathan Prendergast

      The sentence quoted is not saying that the project itself will reduce the carbon footprint. It is saying it will demonstrate how battery storage can play such a role for large buildings.

      This can be true in a number of ways, particularly in a future with high penetration of renewables in the grid like in SA, by balancing building demand and renewable generation.

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