How Shared Energy Storage Empowers Our Neighbourhoods
Introduction
Alongside the rise of home batteries, another exciting development is taking root across the Hunter and Central Coast: community batteries. These shared systems allow residents to store and draw on locally generated solar energy without owning an individual battery. In the last six months of 2024, Ausgrid rolled out 19 community batteries across Sydney, Newcastle and the Central Coast, signalling the start of a new era of local energy sharing. This article explores how community batteries work, what’s happening in Newcastle, and how you can participate.
What is a community battery?
A community battery is a medium‑sized energy storage system located within a neighbourhood. It soaks up excess solar energy from nearby homes during the day and returns it to the community during evening peak times. According to Ausgrid’s trial overview, these batteries support a hundred or so dwellings, balance supply and demand and improve grid reliability. For retailers, they help reduce exposure to volatile peak‑spot prices, while customers in the battery’s catchment area enjoy lower electricity bills.
Key features of community batteries include:
- Shared storage. Participants don’t need to buy or maintain a personal battery. The community unit stores energy and allocates credits to customers via their retailer.
- Balancing the network. Batteries reduce stress on local transformers and poles, delaying expensive network upgrades.
- Inclusion of renters and apartment dwellers. Households without rooftop solar can benefit from cheaper electricity through the program.
- Federal support. The Australian Government has invested $200 million in the Community Batteries for Household Solar program. This will see more than 420 community batteries installed across Australia, providing shared storage for up to 100,000 households.
Ausgrid’s community battery trial in Newcastle
Ausgrid’s network covers much of the Hunter and Central Coast. In late 2023 the utility installed Newcastle’s first power‑pole‑mounted battery at Henderson Park in Merewether. Ausgrid described the project as the third installation in a trial of pole‑mounted batteries across the Hunter and Central Coast, designed to assess the viability of small units to support the network.
By March 2025 the trial had expanded: Ausgrid had rolled out 19 community batteries across Sydney, Newcastle and the Central Coast. The first wave batteries are relatively small (often pole‑mounted or with modest footprints) and typically support around 100 dwellings. From mid‑2025, larger community batteries with 5–10 MWh of storage capacity will begin to come online in the Ausgrid network enabling more households to benefit.
The program partners with retailers such as Energy Australia and offers discounted electricity plans to participating customers. Ausgrid’s trial is part of a broader rollout funded through the federal program, so we can expect more community batteries in Newcastle suburbs over the coming years.
Benefits for Newcastle residents
Shared batteries offer several advantages:
- Lower bills. By shifting energy from times of excess solar to evening peaks, community batteries help participating households access cheaper electricity
- No upfront cost. Renters, apartment dwellers or those without suitable roof space can join without purchasing hardware.
- Improved reliability. Batteries provide local voltage support and can reduce the frequency of outages in parts of the network.
- Greater renewable penetration. By soaking up surplus solar that would otherwise be exported, community batteries allow more rooftop PV to be installed without overloading the grid.
- Scalable model. Early pole‑mounted units may store hundreds of kilowatt‑hours. From mid‑2025, Ausgrid plans to deploy community batteries with 5–10 MWh capacity, supporting many more households.
Locations and eligibility
Ausgrid selects community battery sites based on a mix of residential and commercial customers, available space and the ability to balance the network. As of February 2025, batteries were available in Sydney’s Eastern Suburbs, Lower North Shore, Northern Beaches, Western and South‑west suburbs, the Central Coast and Newcastle/Maitland. Postcodes in the Hunter region include 2291, 2292, 2293, 2300, 2320, 2323 and 2320 among others. Eligible customers sign up through a participating retailer (currently EnergyAustralia) and can then opt into the community battery plan.
How to participate and what to expect
If you live within the catchment of a community battery:
- Check eligibility. Contact EnergyAustralia or Ausgrid to see if your address is included in the trial. Newy Solar Co can also help determine eligibility.
- Sign up to the plan. If eligible, you’ll sign a special electricity plan that offers lower‑priced energy by drawing from the community battery.
- Keep your retailer. You don’t need to change your existing solar system or installer. The community battery operates through your retailer’s billing system.
- Enjoy bill savings. Over time, you should see reduced peak‑period charges and smoother pricing.
- Consider your own battery. Community batteries are complementary to personal storage. Households with larger energy needs may still benefit from their own battery in addition to participation in a shared unit.
The future of shared storage in Newcastle
Community batteries are poised to become a key element of Australia’s distributed energy future. They provide a bridge for renters and unit dwellers to participate in the clean‑energy transition and complement the rapidly growing number of home batteries. As larger systems come online and more retailers join the program, opportunities for savings and grid support will grow.
If you’re excited about community batteries or are considering your own system, get in touch with Newy Solar Co. Our team can help you understand your eligibility, compare community battery plans with home battery options and design a solution tailored to your needs.
