Home battery storage, fitted properly
Keep the solar power you make in the day and use it in the evening. We will tell you honestly whether a battery is worth it for your home.
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No-obligation. We'll call you back to talk it through, usually the same working day.
What a battery does for your home
Solar panels make power when the sun is out. A battery holds on to the spare so you can use it when you need it.
Use more of your own power
Store what the panels make while you are out and run the house on it in the evening, instead of buying it back from the grid.
Backup if the grid fails
If your home has an unstable connection or suffers outages, storage keeps essentials running. Where there is no grid at all, storage is a must.
Less reliance on the grid
With a large enough battery bank you can power an entire home, which gives you more control over your energy.
Advice that fits you
We explain each option in plain English at a free survey and recommend what suits your usage, even when that means no battery.
Want to know if a battery makes sense for your home? We will work it out with you.
Is a battery worth it with solar?
It depends on how you live. Here is how we see it.
A battery usually earns its place if
- You use power in the evening. Cooking, TV and heating happen after the panels stop.
- Your roof faces south. More daytime power to store.
- You want protection from power cuts. Or you have an unstable or no grid connection.
- You have many cloudy or rainy days. Storage smooths out the gaps.
You may not need one if
- You use most of your power during the day. The panels already cover it.
- You are usually in bed early. There is little evening use to cover.
Is storage expensive?
Adding a battery increases the cost of your system, depending on how much electricity you use and how much storage you need. Costs have come down in recent years, but it is still a considerable investment. That is why we weigh it up with you first.
Not sure which side of the line you are on? A free survey will tell you.
Types of battery storage
Home and business batteries come in several chemistries. Here is the short guide.
| Type | Where you will know it from | Good to know |
|---|---|---|
| Lead-acid | Cars and trucks | The most common type |
| Lithium-ion | Smartphones, laptops, electric vehicles | A familiar technology with many home options |
| Nickel-cadmium | Portable electronics, cordless power tools | Can also be paired with solar panels |
| Nickel-metal-hydride | Hybrid and electric vehicles | Another possibility |
| Flow | Commercial and industrial sites | Two chambers of liquid electrolyte give 100% depth of discharge, but the tanks must be large. That makes them expensive and impractical for most households. |
Choosing the best battery for a home or small business can be confusing. Our team explains the differences and recommends the right one at a free, no-obligation survey.
Let us pick the right battery for your setup, free of charge.
How long will a battery power my house?
Backup time depends on the size and capacity of the battery, the brand and what you are running. Here is a rule of thumb we use.
About 8 hours
From a full charge, supplying 1kW of household load.
About 4 hours
The same load from a battery that is only half-charged.
Tell us what you need to keep running and we will size the battery to match.
Batteries we fit
We install systems from manufacturers we know and rate.
Tesla Powerwall
A home battery that stores solar power and can keep your lights on in a power cut.
About Powerwall
Enphase micro-inverters
A small inverter on every panel, with performance you can check panel by panel.
About Enphase
SigEnergy
A modular battery and inverter system that can grow as your needs change.
About SigEnergyAlready have a brand in mind? Ask us about it.
Customers with batteries say
Real reviews from homeowners we have worked with.
A big thank you to Chris, Paul, and the whole team at SW3 Green Energy Services Ltd! A couple of months ago, I had a 15-panel solar system installed, complete with microinverters and a Powerwall battery. I'm already seeing real savings, especially with being able to make the most of off-peak rates and getting good returns from my energy provider's export rates.
What really impressed me about SW3 Green Energy was their reliability and professionalism. They were on top of everything from the first quote to the final paperwork. My setup was a little complex, with specific requirements around the placement of the Gateway and Powerwall, plus integration with my Zappi EV charger. They handled it all seamlessly.
Even when my energy provider botched the smart meter installation, leaving my system down, Chris came back to sort things out and got it up and running again.
I'd highly recommend using SW3 for my new solar panels and battery purchase and install. The entire process was so smooth, from initial booking to the quick installation on the day. Thank you.
We were quoted for 14 panels and 2 batteries and an installation date was set for 2 months later. Everything was delivered on time and the team arrived when agreed. The work was carried out by one electrician who was excellent. It was a very neat installation and done in a day and a half. Any queries were dealt with promptly and to our satisfaction. We would recommend the company.
Stellar experience from start to finish. Chris, Paul, Sherri and anybody on their team has been extremely competent and nice to deal with. They inspected my property, provided a detailed survey suggesting a sensible setup, with good explanations about how it would all work together and they provided a very reasonable quote, with highest quality materials. By the end of the day they were able to get all my apps set up and properly configured with the energy provider.
Join them. Ask for a free, no-obligation survey.
Battery storage questions
Is battery storage expensive?
A battery adds to the cost of a solar system, and how much depends on how much electricity you use and how much storage you need. Costs have fallen in recent years, but it is still a considerable investment, so we help you weigh it up before you commit.
Is it worth getting a battery with solar?
It depends on your home. If you are out all day and use power in the evening, a battery can boost a solar system a lot. If you use most of your electricity in the day and go to bed early, a battery may be an unnecessary expense. We will tell you which applies to you.
Can a battery power my whole house?
If the battery bank is large enough, it can provide power for an entire home. Size and capacity both matter, so we work out what you need to run during an outage.
Which type of battery is best?
There are several battery technologies, each with trade-offs. Our team has experience with each one and explains the differences during a free, no-obligation survey.
How long will a battery run my home?
As a rough guide, a fully charged battery supplying 1kW of household load lasts about 8 hours, and half-charged about 4. The real figure depends on the brand, the size of the battery and what you are running.
Still have a question? Ask us, there is no pressure.
Ready to find out if a battery suits you?
Tell us a little about your home and we will come back with a free, no-obligation quote. Or just ring, we are happy to talk it through.