Solar Batteries Williamstown, SA 5351
The 5351 postcode, which includes Williamstown, Altona, Barossa Goldfields, Cockatoo Valley, Lyndoch, Mount Crawford and Pewsey Vale, has 2,383 households. Of these, 1,846 homes — or 77.5% — have installed rooftop solar panels, reflecting the community's growing move toward renewable energy. With more Williamstown residents looking to reduce their reliance on the electricity grid, many are now turning to solar battery storage as the next step. Solar batteries help homeowners lower energy bills, increase energy independence, and improve long-term sustainability.
According to daily average sunshine data from the nearest weather station at Williamstown, households in this community receive approximately 4.8 kWh of sunlight per day. Across 5351, rooftop solar systems collectively generate approximately 16,419,000 kWh of clean energy each year, based on an average system size of 5.9 kW. At current electricity rates, that's equivalent to around $4,925,700 of clean energy at grid electricity costs annually.
Solar Battery energy storage is growing just as rapidly, with 145 battery systems now installed across 5351. Together, these systems provide 1,827 kWh of stored energy capacity, with the average household storing around 12.6 kWh. This means local solar households can typically power their homes for 5.0 hours each night using clean energy they generated themselves during the day.
So instead of sending excess solar energy back to the grid for lower returns, Williamstown homeowners are now storing and using their own clean power around the clock. This smart approach not only reduces reliance on expensive coal-generated electricity from the grid, it protects against blackouts, improves sustainability, and maximises their solar investment and long-term financial returns.
Our interactive tools below allow you to analyze battery performance throughout the year in Williamstown. Explore monthly charge time variations, compare different system configurations, and see how your household's daytime energy consumption affects battery charging efficiency. All calculations use real climate data and daylight hours specific to your location.
For context, the 10,981 kW of solar in this postcode generates approximately 16,419 MWh of clean energy annually.
Home Battery Ranking
Postcode 5351
N/Ath
In SA
N/Ath
In Australia
Solar Battery Installations Williamstown, SA 5351
Batteries Installed
14.6% of top performerStorage Capacity
13.0% of top performerBattery-to-Solar Ratio
145 batteries / 1846 solar
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Solar Battery Storage Williamstown, SA 5351
* Data from The Bureau of Meteorology (BOM). Closest weather station to Williamstown: Williamstown - approx. 2.4 km
Solar Batteries for Solar Panels Williamstown, SA 5351
Explore 675 certified home battery systems available in Australia. Compare specifications, capacity, and installation requirements. Annual average charge times are calculated using Williamstown's local climate data and average daylight hours. Use the interactive chart above to see monthly variations and customise scenarios for your specific needs.
Solar Battery Installers Williamstown, SA 5351
Bright Earth Solar
132 Mooringe Avenue, 5037Leading solar power system installers in South Australia.
Home Solar Batteries Williamstown, SA 5351
Williamstown Demographics & Energy Profile
The 2021 Australian Bureau of Statistics data highlights why Williamstown is emerging as a hotspot for solar battery adoption. The area's 2,383 households include N/A% couple families with children, and an average household size of 2.7 — a demographic that typically has higher energy needs due to larger home sizes and greater daily electricity use.
Strong homeownership rates in Williamstown further support this transition, with 80% properties owner-occupied, including 1144 homes with a mortgage and 765 owned outright, representing households that are financially well-positioned to invest in long-term energy solutions like solar batteries.
The growing remote work trend adds another layer of opportunity, with N/A residents now working from home. This shift increases daytime electricity use, which aligns well with solar generation patterns and further strengthens the case for battery storage to capture and reuse solar energy later in the day.
Looking ahead, the presence of emerging electric vehicles owned in Williamstown signals the next phase of the home energy transition. As EV adoption continues to grow, more households are recognising the benefits of integrating EV charging with solar battery systems, creating efficient, self-powered homes that maximise renewable energy use while minimising reliance on the grid.
* Based on Australian Bureau of Statistics 2021 Data
Solar Battery Rebates, Cost & Quotes Williamstown, SA 5351
More Williamstown homes are embracing solar energy every year, and it’s easy to see why. With an average annual solar exposure of 17.2 MJ/m² (about 4.8 kWh per day), Williamstown is perfectly positioned for solar panels and battery storage. Local households enjoy strong ownership rates, with over 1,900 dwellings owned outright or with a mortgage, making long-term investments in renewable energy a smart move. Given the median household income of $1,786 per week and a community of around 2,220 dwellings, the appetite for energy savings is growing rapidly. If you’ve already installed solar panels, adding solar batteries is the next logical step to maximise your savings—many Williamstown homeowners are already seeing annual energy savings upwards of $1,700 by storing solar power for evening use and during peak tariff times.
With 1846 solar PV systems and a total of 10,981 kW installed locally, Williamstown is a leader in renewable energy uptake. Battery adoption is on the rise too, with 145 battery systems now installed, providing a collective 1,826.6 kWh of storage capacity. This means more homes are enjoying true energy independence and protection from rising electricity prices. Popular battery sizes in the area include options from Tesla (13.5 kWh), Alpha ESS (7.8 kWh), and Sonnen (6.75 kWh), all trusted solar batteries manufacturers with proven reliability in Australian conditions. Depending on your household’s usage and system size, you could expect average annual bill savings like:
• 6–7 kWh battery: $900–$1,200 • 10–14 kWh battery: $1,400–$2,000 • 20 kWh+ battery: $2,100–$2,800
Whether you’re looking for solar batteries for sale, solar batteries for solar panels you’ve already got, or just want to compare solar batteries cost, there’s never been a better time to install solar batteries in Williamstown SA. Recent system installations have added significant value to the community, both in terms of energy self-sufficiency and resilience.
Interest in battery storage, rebates, and Virtual Power Plants (VPPs) is booming in Williamstown. The Australian Government currently offers a solar batteries rebate SA, helping local homeowners save up to 30% off the cost of a new battery—meaning a typical 11.5–13.5 kWh battery could see $3,400–$4,000 off installation, slashing payback periods to just 3–4 years. Connecting your battery to a VPP can boost these savings further by earning credits for sharing stored energy back to the grid, and it helps keep the local network more stable for everyone. With trusted solar batteries near me, you can choose from the best solar batteries Australia has to offer, all installed by experienced, accredited local professionals.
If you’re considering solar batteries home solutions or want to install solar batteries for your business, now’s the ideal moment to find out if your property is battery-ready.
Thinking about future-proofing your Williamstown home? Chat to our trusted local solar battery installers for personalised advice. With Williamstown’s strong solar exposure and a community committed to sustainability, adding solar battery storage can help you cut bills, boost energy independence, and make your home or business ready for what’s next. Connect today for a friendly, obligation-free chat with us!