What do consumers know about energy storage? Much more than we think | RenewEconomy

What do consumers know about energy storage? Much more than we think

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Surveys reveal rapidly growing interest in energy storage among Australian solar consumers, as people look to get the most from their rooftop PV systems.

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One Step Off The Grid
Interest in residential energy storage is on the rise in Australia, as rooftop solar owners weigh up the benefits of storing and using more of their self-generated solar electricity, according to the results of a new survey by leading online solar information website, SolarChoice.

According to SolarChoice analyst James Martin – and illustrated in the graph below – around one in 10 people who have visited the company’s website seeking information since the start of 2015, have done so via a battery or energy storage-related page (indicating an energy storage-related search).

As Martin notes, it’s no coincidence that the numbers began to rise most significantly in May – when Tesla announced its Powerwall “and ignited the world’s imagination with the promise of widespread uptake of home energy storage.” Solar-Choice-interest-in-energy-storageVisitors entering the Solar Choice website via energy storage-related pages since 1 January 2015.

Collecting information from interested customers

SolarChoice has also been inviting visitors to its website, since early June this year, to fill out a short survey. Martin says about 300 people (about 1.7% of the storage-related visitors) have done so to date, and the bulk of them (more than 65 per cent) already had a solar PV system.

“While this may simply be an result of the fact that there is no ‘storage only’ enquiry form on the Solar Choice site (soon to change), it still provides some insight into the already high level of interest in batteries among those who have existing solar systems,” said Martin.

Interest-in-energy-storage-by-stateState-by-state breakdown of those interested in energy storage. The most interest came from NSW by far.

Have-solar-vs-no-solarBreakdown of those who have an existing PV system vs those who don’t.

According to Martin, the results of another, more detailed survey showed that around half of respondents were from NSW, with Victoria in second place. It also revealed that roughly 66 per cent of respondents lived in an urban or suburban area, with 87 per cent living in a grid-connected home.



Feelings about energy self-sufficiency & savings with solar-plus-storage:Martin said about 75 per cent of respondents indicated that energy self-sufficiency was not their primary objective in getting batteries, suggesting it was more to make the most of current rooftop solar generation. The remaining 25 per cent indicated they might be open to installing an energy storage system even without reaching this milestone.Willing-to-invest-in-energy-storage-wo-self-sufficiency-e1439275880536“Accordingly, most respondents indicated that self-sufficiency was more of a ‘nice to have’ than a goal to strive for,” said Martin. “Most were only willing to reduce their electricity consumption to become self-sufficient only if it didn’t require much additional effort.”Willing-to-reduce-usage-for-self-sufficiency-e1439276212188“When asked how much they would be theoretically willing to pay for energy independence, the most common answer was $10,000,” Martin said. “The average number was also close to this amount. $15,000 was the second most common response. This is gives a good indication of the maximum many households would be willing to spend on a system.”Amount-willing-to-pay-for-energy-independence

Interestingly, the survey also revealed that more than half of respondents would either be willing to switch to time-of-use (TOU) billing, or would be interested in learning more about it in order to maximise electricity savings.


Asked how much they would like to be paid for selling their stored energy into the grid, the most common response was 20c/kWh, said Martin.

“This indicates (consumers) are still thinking in terms of solar feed-in tariffs, and may not be aware of the higher rates that may potentially be offered through programs like Reposit Power’s GridCredits,” said Martin.

In other results from the survey, just over half of respondents indicated that they more or less know what they’re after and are well-informed enough to make a decision. A much smaller number indicated that they know ‘a lot’ about energy storage, while the remaining 36% or so said that they know ‘very little’.Energy-storage-level-of-knowledge-e1439276441799

Another 70 per cent of respondents said they had some idea of how much energy storage capacity they wanted or needed, while around 30 per cent said they had no idea what capacity would be most appropriate for them.


Unsurprisingly, Tesla’s Powerwall – still not available on the Australian market – was the most recognised energy storage device among respondents. Australia’s own Magellan Power was a distant second, with Bosch Power Tec in third place.

Devices-recognised-e1439277135683Key takeaways

Although the survey results above are probably not a representative sample of the Australian energy storage market, they’re still useful in drawing some general conclusions about where things are at and how they are changing.

  • As Australia’s energy storage market grows, so is consumer knowledge around the topic. There is already an educated group of consumers who are out searching for solutions.
  • Energy self-sufficiency (or going off the grid) is not a key goal for many of those in the market for energy storage. Most of the people who are interested are in grid-connected homes, and are interested in selling their energy to the grid.
  • There is still very little awareness around the full range of energy storage options available in Australia, but Tesla’s Powerwall announcement appears to have done wonders towards boosting the market.

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

To read the original article on the survey by SolarChoice, click here

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  1. john 5 years ago

    The simple way that the energy suppliers have got around the situation is to institute for commercial a high demand cost and reduced the cost of power per KwH.
    The same idea is trying to be put in place for consumers.
    What am I saying?
    The new way to charge for power is going to be demand or supply charge which will be at least $400 a quarter and then a very low charge for power used it will very possibly be lower or higher depending your demand.
    Is this in any way connected to reality?
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