Australian-first housing development where neighbours can create and share power

A new housing development has been announced in Sydney which will be the first in the country to allow residents to generate and share power to save each of the residents an estimated $2500 in electricity bills annually.

The property development in Kurnell will connect 12 homes through a home battery storage solution.

This will enable them to become part of a virtual powerplant with the unique ability to share more than just a cup of sugar with their neighbours – they can share their power.

The system will be the first outside of Europe to utilise blockchain technology to manage the storage and distribution of power.

The milestone installation was completed with the help of Natural Solar.

Each of the 12 homes in the development were fitted with a 5kWp solar system and an 8kWh Sonnen battery.

The Sonnen home storage batteries

Each Sonnen battery is purpose built for home storage and has a lifespan of more than 20 years.

The residents will also become a part of the SonnenFlat plan which, for a small monthly flat fee, ensures they will have $0 power bills.


The system is expected to save the 12 homes in the development a minimum of $620,000 in power bills over the next 20 years.

“This technology that we have only seen utilised in this exact way in international markets unlocks a huge opportunity for Australians,” says Chris Williams, CEO & Founder of Natural Solar.

“In this instance, it’s not just the ability for homes to share power that is a huge drawcard for developers.

“Costly grid and infrastructure upgrades required to provide power to this development of 12 properties meant an anticipated $250,000 price to ensure the grid could supply adequate power to both the new homes and existing homes.

“The actual installation cost has saved the developer $22,000 from day one, but also offers buyers a tangible asset for their property which will guarantee up to 20 years of $0 power bills and an annual estimated saving of $2,500 thanks to their new sonnenBatterie and challenger energy retailer plan SonnenFlat.”

The development will reduce the amount of power drawn from the grid buy up to 90 per cent per home.

This will also pave the way or other developers to integrate solar and battery power during the construction stage.

“Blockchain technology is now being explored around the world when it comes to home energy storage, and this is a trend we are seeing in property developments where this can be added into the infrastructure from the beginning,” Mr Williams said.

“These are the first homes in Australia that connects blockchain technology coupled with battery power to produce a truly unique energy solution.

Natural Solar CEO Chris Williams with the Sonnen battery at the Kurnell development

“There is no doubt we are seeing strong consumer savings when homeowners move to battery power, and this will be a motivator for Australians.

“In the case of this development in Kurnell, with each property anticipated to have a valuation of $1.5M, we are also seeing savvy homeowners wanting to reap the benefits of savings from day one.

“It’s hugely powerful to know that from the day they move in, they will never have to pay for power again.”

Williams says the aggregation of the system is more than just knocking up a few solar panels and installing a storage battery.
“Through extensive modelling and innovation, we now have the ability to create smart homes that are truly connected as they are joined together in a virtual power plant and creating a sizeable generator,” he said.

“This solution adds considerable asset value.”

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