Custom-designed systems
Every installation is spec'd to your roof size, orientation and household usage profile for maximum yield.
Top 10 Solar Installer — Australia 2025
Cut your power bills by up to 80%
Custom solar & battery systems designed, built and installed by our own in-house teams — never subcontracted — and backed by a 25-year performance warranty.
4.9★ across Google & Facebook
$48M+
Collective savings for Australian customers
14k+
Systems installed
25yr
Performance warranty
"The entire process with One Power was outstanding. Professional, friendly, and fast."
Britt M. · Facebook review$0
Saved by our customers
0
Systems installed Australia-wide
0
Performance warranty included
0
Potential bill reduction
Why One Power
Solar done right — from quote to install
We spec every system to your property's roof area, orientation and energy usage — never a generic template. Our team handles permits, rebates and grid connection so you don't have to.
25-year performance warranty
Comprehensive performance protection is included automatically with every system we install.
In-house customer service
Your dedicated advisor stays with you from the first quote through to post-install support.
Rebate assistance included
We identify and apply all eligible state and federal rebates and incentives on your behalf.
$0 upfront finance options
You may qualify for $0 upfront and 0% interest finance through our partners Plenti and Humm — funds in as little as 24 hours.
Fully accredited & insured
All installers are CEC-accredited and Master Electricians certified. Never subcontracted.
The process
From enquiry to savings in four steps
No pushy sales. No paperwork headaches. Just a clear path to lower bills.
1
Free quote
We assess your property, bills and energy goals — no cost, no obligation.
2
Custom design
Our engineers size and optimise a system for your roof and usage.
3
Professional install
In-house licensed installers handle everything, including permits and paperwork.
4
Start saving
Your system goes live and your energy savings begin on day one.
Products
Solutions for every property
Whether you're a homeowner looking to cut bills or a business reducing operating costs, we design a system for you.
Residential
Residential solar panels
High-efficiency panels custom-mounted to your home. Reduce bills and earn feed-in tariff credits from day one.
Explore residential solar
Battery storage
Tesla Powerwall 3
Premium Certified Installer. Store your solar energy and stay powered through outages and peak rates.
Explore Powerwall 3
Commercial
Commercial solar
Scalable systems from small business to large-scale enterprise. Delivered on time and on budget.
Explore commercial solar
Savings estimator
See what solar could save you
Drag the slider to your average quarterly electricity bill and see an instant estimate of what you could save over 10 years with a custom One Power system.
- Typical payback in just 3–5 years
- Bills reduced by up to 80%
- Government rebates applied for you
Estimated 10-year savings
$25,600
Based on an 80% bill reduction. Indicative only — your free quote gives exact figures.
100% in-house teams
Never subcontracted. Ever.
Our promise
Licensed, insured, and never subcontracted
We employ only in-house solar installers who undergo regular training to meet industry standards — and our own higher ones.
- All installers CEC-accredited and fully insured
- Master Electricians Australia member
- NETCC Approved Seller — highest retailer standard
- Tesla Powerwall Premium Certified Installer 2026
- Regular training audits against industry standards
About us
A family-run company on a mission to make solar simple
Since 2015, One Power has grown from a family-run start-up into one of Australia's most awarded solar companies — with a team of 65+ local staff and over 14,000 systems installed across NSW and QLD.
Our directors, James Strathdee and Sean Barry, were both named in Australia's Top 100 Young Entrepreneurs by Business News Australia. Sean, a licensed electrician and our technical director, still keeps every install to the same standard he'd want on his own roof.
- Family-run and Australian-owned since 2015
- 65+ local staff — sales, design and install all in-house
- Custom systems designed with cutting-edge software
65+ local staff
Serving Australia since 2015
Where we work
Servicing NSW & QLD
We service almost all major cities and nearby towns in New South Wales and Queensland.
Sydney
& nearby areas
Newcastle
& nearby areas
Wollongong
& nearby areas
Brisbane
& nearby areas
Gold Coast
& nearby areas
Not listed? We likely still cover you — check your postcode with a free quote.
Customer reviews
14,000+ Australians already saving
Rated 4.9 stars across Google and Facebook — and recognised by the industry's top awards.
"The entire process with One Power was outstanding. Professional, friendly, and completed on schedule. Couldn't recommend them more highly."
Britt M.Facebook review"I was sceptical at first but the savings are real. Our electricity bill dropped significantly within the first quarter after installation."
James K.Google review"Seamless commercial installation on our warehouse. Finished on schedule, within budget, and the team was fantastic to deal with."
Tara L.Google review
FAQ
Questions, answered
Everything you need to know before going solar.
How much can solar reduce my energy bills?
Most One Power customers reduce their energy bills by up to 80%, with typical payback periods of 3–5 years depending on system size, usage and location. Your free quote includes exact projections for your property.
Do you use subcontractors?
No — never. Every One Power installation is completed by our own in-house, CEC-accredited and fully insured installers. It's our no-subcontractor guarantee.
What warranty do I get?
Every system we install includes a comprehensive 25-year performance warranty automatically — no extra cost, no fine print surprises.
Can you help with government rebates?
Yes. We identify and apply all eligible state and federal rebates and incentives on your behalf as part of every quote, so you get the maximum saving with zero paperwork.
Are you certified to install Tesla Powerwall?
Yes — One Power is a Tesla Powerwall Certified Premium Installer, the highest level of Tesla installer accreditation available in Australia.
Do you offer finance?
Yes. Through our lending partners Plenti and Humm you may qualify for $0 upfront and 0% interest finance options — and provided you meet our partner's eligibility criteria, you may get your funds in as little as 24 hours.
Which areas do you service?
We service almost all major cities and nearby towns in NSW and QLD — including Sydney, Newcastle, Wollongong, Brisbane and the Gold Coast. Request a free quote to confirm coverage for your postcode.
Free quote
Find out if your property is eligible to save
Get a no-obligation quote from a real installer — not a call centre. Most customers see payback in 3–5 years.
- Free property & bill assessment
- Custom system design with exact savings figures
- All rebates and incentives applied for you
- No pressure, no obligation — ever
Thank you! Your submission has been received!
One of our solar advisors will be in touch within one business day.