Battery storage
Solar Batteries for Your Home or Business, Designed and Installed In-House
A solar battery stores the extra power your panels make during the day so you can use it in the evening, overnight or when the grid goes down, instead of sending it all back to the grid. If you are weighing up a home battery for your house, farm or business, you are in the right place. HV Solar is a Hunter Valley team that designs and installs solar battery storage for homes and businesses across NSW, as part of a new solar system or added to solar you already have.
We are electricians first, and every job is designed and installed by our own people. We do not use subcontractors. That means the person who talks you through your options is the same team that does the work, and we will tell you plainly if a battery is not the right move for you yet.
Not sure where to start? Call us on 02 4017 1181 and we will talk it through in plain English, with no pressure.
Are solar batteries worth it?
It depends on how you use power, and we would rather be honest about that than sell you something you do not need. A battery tends to make the most sense when you use a lot of electricity in the evening and overnight, when your panels are not producing. It can also suit you if your power bill is high, if the rate you are paid for exported solar is low, or if you want some cover when the grid drops out.
It may not make sense yet if most of your power use is during the day, if your solar system is small, or if your budget is better spent on more panels first. We look at your actual usage, your current bills and your plans for the property, then talk through the trade-offs in plain English so you can decide with confidence. We will not promise a payback figure, because it varies from house to house and changes with power prices.
How much does a solar battery cost?
The honest answer is that solar battery cost and price vary with the size of the battery, the brand, the inverter it connects to and how complex the installation is. A small battery on a simple retrofit is a very different job to a large battery bank with a new inverter and backup circuits.
We have not published battery prices here because they depend on those choices, and we quote them separately once we understand what you need. For context, solar-only systems for homes typically start from about $5,000 to $8,000 for 6.6kW, $7,500 to $10,000 for 10kW and $9,000 to $13,000 for 13kW, and complete grid-connected projects generally run up to about $23,000. Adding a home battery cost on top of that depends on the factors above. Call 02 4017 1181 and we will give you a clear, itemised quote.
Batteries sized to your home, installed by our own team
What size solar battery do you need?
Battery size is measured in kilowatt hours (kWh), which is simply how much energy it can hold. The right size comes from three things: how much power you use after the sun goes down, how big your solar system is, and which loads you want to keep running if the grid fails.
Home batteries commonly sit in classes like 5kWh, 10kWh and 13.5kWh, and larger households, farms and businesses may look at a 30kWh battery or more. Bigger is not always better. A battery that is too large for your solar system may rarely fill, and one that is too small runs out before bedtime. We size it around your usage so you are not paying for capacity you will not use, and we leave room to expand later where the battery brand allows it.
Add a battery to existing solar
Yes, in many cases you can add a battery to existing solar. If you already have panels and want a battery for solar panels you have already paid for, the main question is how the battery connects to your system.
With an AC-coupled battery, the battery has its own inverter and works alongside your existing solar inverter, which often suits a retrofit. With a DC-coupled setup, the battery connects through a hybrid inverter, which is common when a new system is installed together. Sometimes your current inverter can stay, and sometimes swapping to a hybrid inverter is the cleaner option. We check what you have, explain the options plainly and recommend what suits your home and budget.
New solar and battery together
If you are installing solar for the first time, designing the panels, inverter and battery as one system usually makes for a tidier install. You get one design, one installation team and one point of contact. See our residential solar page for more on how we design and install new systems.
Backup power during blackouts
Many people ask whether solar batteries work in a blackout. A battery can provide backup power, but what it runs and for how long depends on your system configuration. Not every battery setup includes backup, so it needs to be designed in from the start.
Some systems are set up to power essential circuits such as lights, the fridge and internet, while others can be designed to cover more of the home. We will not tell you a battery will run your whole house in an outage, because that depends on the battery size, the inverter and what you are trying to power. Tell us what matters most to you, whether that is keeping the fridge cold, the lights on or a home office running, and we will explain what is realistic for your property. For properties with no grid at all, see our off-grid solar page for off-grid battery banks.
Batteries we install
We install a range of battery storage brands, and we only use brands that have Australian offices so there is real warranty support on the ground if you ever need it. Our team is Tesla Powerwall certified, and we also install Pylontech US5000B, Deye, Dyness, Goodwe, BYD, Sungrow and Sigenergy batteries.
There is no single best solar battery for everyone. The right choice depends on your budget, how much storage you need, whether you want backup power and which inverter suits your setup. A Powerwall is a popular all-in-one option. Pylontech, Dyness and BYD are often chosen for modular storage that can grow with you, and Deye, Goodwe, Sungrow and Sigenergy pair batteries with matching hybrid inverters. We will explain the differences and recommend what fits, rather than pushing one brand.
Tesla, Pylontech, Deye, Dyness, Sungrow and more
Recent battery installs
Here is a general look at the kinds of jobs we do. At Charmhaven we installed a 13.5kWh Tesla Powerwall with a 15.2kW Jinko solar system, and at Tanilba Bay a Powerwall 2 with 10kW of Jinko panels. At Maitland we installed 28.8kWh of Pylontech US5000B batteries in a weatherproof Defender cabinet, with a 12kW Deye inverter and 14.5kW of Jinko panels.
At Wallarobba we installed a 40kWh Dyness battery with a 12kW Deye inverter and 15kW of Jinko panels, and at Wangi Wangi a 12.6kWh Sungrow battery with two 5kW Sungrow inverters and 14kW of Jinko panels. We also install for business: Muswellbrook Showground and Cooma Coaches each have a 51.2kWh Sungrow battery. If you run a business, see our commercial solar page.
Recent install
Charmhaven: 13.5kWh Tesla Powerwall
A recent Central Coast install: a 13.5kWh Tesla Powerwall paired with 15.2kW of Jinko solar, installed by our Tesla Powerwall certified team.

Recent install
Maitland: 28.8kWh of Pylontech batteries
A larger home battery system in Maitland: six Pylontech US5000B batteries (28.8kWh) in a weatherproof Defender cabinet, paired with a 12kW Deye inverter and 14.5kW of Jinko solar.


Recent install
Wallarobba (Dungog area): 40kWh of Dyness batteries
A large battery system on a rural Hunter Valley property near Dungog: 40kWh of Dyness batteries with a 12kW Deye inverter and 15kW of Jinko solar.

Recent install
Tanilba Bay (Port Stephens): 13.5kWh Tesla Powerwall 2
A Powerwall 2 installed alongside 10kW of Jinko solar at a Port Stephens home.

Recent install
Wangi Wangi (Lake Macquarie): 12.6kWh Sungrow battery
Two 5kW Sungrow inverters and a 12.6kWh Sungrow battery with 14kW of Jinko solar.

Finance and incentives
Incentives for batteries change over time, so we do not quote rebate amounts here. When we prepare your quote, we check what is currently available and whether you are eligible. If you are searching for a solar battery rebate in NSW, one important thing to know is that the NSW Home Energy Saver Loan is a loan, not a rebate.
Through Brighte, the Home Energy Saver Loan offers 0% interest with no fees on up to $15,000, over up to 10 years, subject to approval and eligibility, and battery storage is an eligible upgrade. We also work with HandyPay Green Loans for personal use, from $2,001 to $75,000 over 1 to 10 years. Our finance page and Home Energy Saver Loan page have the details.
NSW Home Energy Saver Loan: 0% interest, up to $15,000, for solar and batteries.
See if you qualifyMonitoring, aftercare and how it works
From your first consultation to commissioning, a battery project usually takes around 4 to 6 weeks. We assess your usage and property, design the system, install it in-house and commission it. Our team is SAA accredited, NECA certified and a member of Master Electricians.
After install, we monitor your system remotely and can often diagnose problems remotely too, so small issues get sorted quickly. If something needs a site visit, we come to you. Our clients rate us 4.8 out of 5 from 136 Google reviews. Ready for a chat? Call 02 4017 1181 or send us a quote request.
Designed and installed in-house
Our own electricians do the design and the install. No subcontractors.
Powerwall certified, brand independent
We install Tesla Powerwall, Pylontech, Deye, Dyness, Goodwe, BYD, Sungrow and Sigenergy, and recommend what fits you.
Remote monitoring and aftercare
We keep an eye on your system after install and can diagnose issues remotely.
FAQ
Solar batteries: common questions
How much does a solar battery cost?+
It varies with battery size, brand, inverter and how complex the installation is, so we quote it separately after understanding your needs. Call 02 4017 1181 for an itemised quote.
Are solar batteries worth it?+
It depends on your usage. They tend to suit homes and businesses that use a lot of power in the evening or want backup options. We will tell you honestly if a battery is not right for you yet.
How long do solar batteries last?+
Lifespan depends on the brand, how the battery is used and how it is installed. We do not promise a number beyond the manufacturer's warranty, and we can explain the warranty for the brand you are considering.
What size solar battery do I need?+
It depends on your evening and overnight usage, your solar system size and what you want to run during an outage. We size it around your actual usage.
Can I add a battery to existing solar?+
In many cases, yes. Depending on your current inverter, we may add an AC-coupled battery or recommend a hybrid inverter. We check your system first.
Will a solar battery run my home in a blackout?+
It can provide backup power, but what it runs and for how long depends on your system configuration, battery size and inverter. We design backup around the circuits that matter most to you.
Do solar batteries need maintenance?+
Modern home batteries need little hands-on maintenance. We monitor your system remotely and can arrange a site visit if something needs attention.
What warranty comes with a solar battery?+
Warranty terms depend on the brand and model. We only install brands with Australian offices, so there is local warranty support. We will go through the exact terms with your quote.
Thinking about a battery?
Tell us about your power use and what you want a battery to do. We'll give you honest advice on whether it suits you and what it would cost.
