Solar and battery backup
Add a Battery to Your Existing Solar — NSW
We check your inverter and switchboard first, then size a battery to your evening usage.
Which battery are you looking at?
NETCC Approved Seller
Talk to a battery designer4.9★ across 600+ reviewsSolarQuotes Legendary Partner
4.9★ across 600+ reviews
SolarQuotes Legendary PartnerSigenergy Platinum PartnerThe installation team and electricians solved small, unexpected issues on the fly and completed the job professionally.
Free. No obligation. Yours to keep.
Here's exactly what you get
Answer a few questions about your home and this is what comes back to you — whether you buy anything or not.
A battery sized for your home
Not a box off a price list — the size that matches your evening usage, your solar and what you want kept on in an outage.
Your own savings number
What you stop buying back from the grid each night, and how long the battery takes to pay for itself.
A straight answer on your setup
We check your inverter and switchboard first. If a retrofit doesn't stack up for you, you'll hear that instead of a sales pitch.
30 minutes with a senior designer
Ask anything. Buy nothing. It's yours to keep either way.
You keep the design, the numbers and the price — even if you say no.
All day
your roof exports power for next to nothing
All evening
you buy it back at full price
Every night
the meter does the same bad trade again
A battery doesn't create energy. It stops you selling low and buying high — in your own house.
Retrofit done properly starts with a compatibility check.
Lenergy was started to replace industry guesswork and misinformation with designs based on each home's actual usage. So the process starts with evidence: your inverter, switchboard and actual usage.
- 1
Tell us what's on the roof — panels, inverter age, what a battery needs to do for you.
- 2
We check before we design — inverter, switchboard, backup circuits. If your setup can't take a retrofit, we tell you straight.
- 3
You decide with the maths both ways — on a free 30-minute call with a senior designer. No pressure.
1
Send your bill
Upload or photograph your latest electricity bill. That's the whole first step.
2
We design it
A senior designer sizes the system from how your home actually uses power.
3
See the numbers
A 30-minute call walks you through the design and the payback maths, in writing. No obligation.
If it doesn't stack up for your home, we'll tell you.
Real homes, real numbers
What that design turns into:
Designed around your home
“Ryan quickly established a rapport and understood our needs… Pricing was competitive… fully integrated with our Tesla apps.”
Designed around your home
“The installation team and electricians solved small, unexpected issues on the fly and completed the job professionally.”
Individual results depend on your usage, tariff and system — that's why the design comes with the maths.
Hear it from Lenergy customers
Watch homeowners share what changed after choosing solar or a battery with Lenergy.
A coffee a day in winter
Toby’s winter power bills now cost him a coffee a day
A system built around his goals
How Matthew is achieving his solar goals with Lenergy
Why the numbers made sense
“It was a no brainer.” John shares his Lenergy experience
Sizing solar for the future
Why Don chose a bigger solar system
4.9★ across 600+ reviews
4.9★ across 600+ reviewsRyan quickly established a rapport and understood our needs… Pricing was competitive… fully integrated with our Tesla apps.
The installation team and electricians solved small, unexpected issues on the fly and completed the job professionally.
He did not try to force us into going too big or too small… He was happy to answer my silly questions and reassure me no question is silly.
SolarQuotes Legendary Partner · NETCC Approved Seller — vetted, monitored, accountable.
Getting three quotes? Good. Compare them on these.
- Designed from your actual bill and usage — so the size matches how your home consumes power.
- 10-year workmanship warranty — in writing.
- Someone who answers in year nine — the team that quotes is the team that answers.
Bring your other quotes to the call — we'll go through them line by line, and if another quote genuinely stacks up better for your home, we'll say so.
GET A QUOTEWhy homeowners choose Lenergy
- Designed from your bill and actual usage.
- 10-Year Workmanship Warranty — in writing.
- Tesla Certified & Sigenergy Platinum — accredited on the hardware we stand behind.
- Teams across NSW, ACT and Queensland — the team that quotes is the team that answers in year nine.
- A 141-answer learning hub — we educate first, quote second.
- Backup designed in — we plan the circuits that must stay on before we pick the box.
- Tesla and Sigenergy accredited — we fit the right hardware for your home and usage.
Thinking what most people think right now?
'Is it even worth it on my bill?'
Sometimes no — and we'll say so. Some of the best battery cases are small bills with big outage risk. The free design shows your number, both ways.
'Will it work with my inverter?'
That's the first thing we check — before we design. If a retrofit doesn't stack up, you'll hear it from us first.
'Tesla or Sigenergy?'
We're accredited on both, so the answer comes from your usage, switchboard and backup needs.
Who this isn't for
We'd rather be straight with you now than waste your time.
- No solar yet? No problem — one design can cover both.
- Renting? The owner needs to lead this one.
- We install batteries we're willing to warrant for the long haul — designed for your usage and backup needs.
Meet Lenergy
The people behind your solar and battery journey
Our design team is a group of people who read your actual bill and usage and build the numbers around your home, not a template. If solar or a battery won't pay for itself at your place, we'll tell you straight.
GET A QUOTE
Lenergy was started to replace industry guesswork and misinformation with designs based on each home's actual usage.
And the wider Lenergy team behind your install
Meet the designers and support crew who keep you updated from quote to switch-on.
Questions homeowners ask us
That's the exact question the free design answers — from your evening usage, your export rate and whether you want backup. We show the maths both ways, and some of our best battery customers have small bills and big blackout risk.
About Lenergy
Lenergy is run by a team of people who design solar and battery systems from your actual usage. 4.9★ across 600+ reviews, SolarQuotes Legendary Partner, NETCC Approved Seller, and a 10-Year Workmanship Warranty in writing.
GET A QUOTEAreas we cover
A team of people serving homeowners across NSW.
- Southern Highlands — Bowral, Moss Vale, Mittagong
- Illawarra & South Coast — Wollongong, Shellharbour, Kiama, Nowra
- Goulburn & Tablelands
- Macarthur — Camden, Campbelltown
- Sydney
- Newcastle
Get your free design and your real numbers
Two minutes now. A senior designer, real maths, and no pressure.