How can customers trade energy with batteries?

Reposit Power, with its solar battery storage trading and control platform, is one of the companies helping residents in Australia make money by selling stored energy to the grid. Photo credit: Australian Government

Reposit Power, with its solar battery storage trading and control platform, is one of the companies helping residents in Australia sell their stored energy to the grid. Photo credit: Australian Government

By Dr Geoff James
Previously published on www.energystorageforum.com and republished with permission.

When people buy batteries for their homes, they mainly expect to have more energy independence.

But a sophisticated battery system can do more than providing secure backup power or soaking up the output of rooftop PV panels, as a rain tank catches rain.

Considering the whole electricity system, batteries can also resolve the variability of solar and wind energy, paving the way towards a cleaner, greener grid.

This is called ‘balancing the grid’ and batteries are excellent at short-term balancing over seconds, minutes and hours. The best part? There is money to be made from it.
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Battery storage market is at home in Australia

Energy storage Australia: we explain the reasons for the massive growth in residential solar battery storage and look at the main companies in the market. Photo credit: Ergon Energy

Energy storage Australia: we explain the reasons for the huge growth in residential solar battery storage and look at the main companies in the market. Photo credit: Ergon Energy

By Dr Geoff James

Affordable battery energy storage is on Australia’s doorstep and getting an open-armed welcome.

And it is the residential sector that is driving demand, likely to overtake utility-scale installations next year to become the dominant grid-connected storage resource.

Only the immature supply chain can slow the growth of residential storage and with it the new energy democracy.

Several factors combine to make a perfect storm that will blow away old business models and energy industries unwilling to adapt.

Firstly, Australia has lots of rooftop solar PV generation, about 3GW and over 20% of households, which is significant on a world scale.
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