This guide is for rural landholders, tree-changers and anyone facing a big grid connection quote who wants a properly engineered stand-alone power system. Off-grid is a different discipline from adding a battery to a suburban home: the system must carry you through a week of cloud, run pumps and workshops, and start a generator automatically when it needs to.
We compared eight installers that verifiably design stand-alone systems, chosen by region: Off-Grid Energy Australia, Rainbow Power Company, NSW Country Solar, RACV Solar, AHLEC Solar, Expert Energy Tasmania, Eco Sparks and OffGrid WA. Each one shows off-grid design on its own website, with inverter-chargers, battery banks and generator integration rather than just hybrid batteries.
This is independent desk research using company websites, public review patterns, published pricing and government program documents. We did not contact any company, request quotes or accept payment for inclusion. You will learn which specialist covers your region, the trade-offs of each, and what to check before paying a deposit.
Quick winners
- Best Overall (national): Off-Grid Energy Australia
- Best Track Record: Rainbow Power Company (Northern Rivers NSW and south-east Queensland)
- Best for Central and Western NSW: NSW Country Solar
- Best for Regional Victoria: RACV Solar
- Best for the Sunshine Coast and Hinterland: AHLEC Solar
- Best for Tasmania: Expert Energy Tasmania
- Best for the Top End: Eco Sparks
- Best Published Pricing (WA): OffGrid WA
Comparison table
| Company | Region | Operating | Off-grid platforms named | Published pricing | Workmanship warranty | Google rating (Oct 2026) |
|---|---|---|---|---|---|---|
| Off-Grid Energy Australia | National (SA base) | Since 2011 | Selectronic, Victron, BYD | No | Not published | 4.7 (roughly 60) |
| Rainbow Power Company | Northern NSW, SE QLD | Since 1987 | SMA, Sigenergy | No | Not published | 4.8 (roughly 115) |
| NSW Country Solar | Central and western NSW | 10+ years | Selectronic, Victron, SMA | No | Not published | 4.9 (roughly 140) |
| RACV Solar | Victoria | Regional roots | Selectronic, PowerPlus | From $16,500 | Not published | 4.1 to 4.9 by branch |
| AHLEC Solar | Sunshine Coast, QLD | 35+ years | Selectronic, Fronius, BYD | Packages listed | Not published | 4.9 (roughly 140) |
| Expert Energy Tasmania | Tasmania | 10+ years | Not published | No | 10 years | 4.9 (roughly 115) |
| Eco Sparks | Darwin and Top End | 25+ years off-grid | Fronius | No | Not published | 5.0 (roughly 105) |
| OffGrid WA | Western Australia | Not published | Victron, Sigenergy, Fronius | $19,000 to $99,900+ | Not published | 4.9 (roughly 50) |
For the basics of when off-grid beats staying connected, see our guide to grid-tied vs off-grid solar.
Best Overall: Off-Grid Energy Australia
Off-Grid Energy Australia has specialised in stand-alone power systems since 2011. It designs from its Adelaide head office and installs in every state, holding electrical contractor licences in SA, NSW, Victoria, WA and Tasmania, plus an office in Orange, NSW.
Pros
- Off-grid is the core business: a Selectronic accredited integrator, BYD expert partner and Tesla Powerwall certified installer, according to its website
- Load profiling, component selection and generator integration are built into its design process
- Awards it lists include Clean Energy Project of the Year 2025 and a Selectronic Excellence award
- 4.7 stars from roughly 60 Google reviews as of October 2026
Cons
- No prices published; standalone systems commonly cost several times a grid-tied battery, so expect a premium quote
- Workmanship warranty length is not published
- In distant states your crew may be a network partner rather than head-office staff
- Very small SolarQuotes footprint (6 reviews), so its national reputation rests on a thin public record
Enquire at offgridenergy.com.au, or browse all Australian installers in our directory.
Key facts. Based at Dudley Park, Adelaide. Says it is a New Energy Tech approved seller and Smart Energy Council member, and offers 24/7 troubleshooting support. Also works in New Zealand and the Pacific.
Why we selected them. Few companies anywhere in Australia do nothing but off-grid at this scale, and its licences cover most of the country.
Products and brands offered. Selectronic SP PRO and Victron inverter-chargers, BYD battery banks, Tesla Powerwall for hybrid jobs, Fronius solar inverters and backup generators.
Installation quality and reputation. Reviews describe professional, tidy installs and detailed consultations. SolarQuotes category scores are 5.0 for installation.
Pricing and value. Not published. The company frames off-grid as cost-effective where grid connection would cost tens of thousands.
Warranty and after-sales support. Component warranties follow the manufacturers. Ask how remote callouts are priced and who attends.
What customers praise and what complaints recur. Praise for communication and engineering detail; complaints are rare, with occasional comments on price.
Best for rural properties anywhere in Australia wanting a specialist. Look elsewhere for a simple suburban hybrid battery, where volume installers are cheaper. More SA options are on our SA top installers page.
Best Track Record: Rainbow Power Company
Rainbow Power Company has designed off-grid systems from Nimbin, in the Northern Rivers of NSW, since 1987, which makes it one of the longest-running solar businesses in the country. It now has a team of 35+ and installs both off-grid and hybrid systems.
Pros
- Nearly four decades of stand-alone design experience in a region with many off-grid homes
- Clear package ladder, from small cabin systems to SMA-based estate systems, with Sigenergy for homes and acreage
- After-sales system checks and direct technician phone support, according to its website
- 4.8 stars from roughly 115 Google reviews as of October 2026
Cons
- Premium pricing; SolarQuotes reviewers describe it as “not the cheapest”
- Core installation area is northern NSW and south-east Queensland, so further afield you may wait or pay travel
- Workmanship warranty and battery brand are not stated on its off-grid page
- An older detailed SolarQuotes complaint alleges undersizing and defensive after-sales handling
Enquire at rpc.com.au, or browse all NSW installers in our directory.
Key facts. Founded 1987, based in Nimbin, NSW. SolarQuotes rating 4.7 from 23 reviews.
Why we selected them. Longevity matters for off-grid, because the installer needs to be around for battery replacements and upgrades a decade from now.
Products and brands offered. SMA and Sigenergy systems, lithium batteries (lithium warranties quoted at 10 to 15 years), plus portable kits.
Installation quality and reputation. Reviewers consistently describe neat installs and knowledgeable, unhurried design advice.
Pricing and value. Premium. Ask for an itemised quote including generator, battery usable capacity and days of autonomy.
Warranty and after-sales support. Ongoing system checks and phone support are a strength; get the workmanship term in writing.
What customers praise and what complaints recur. Praise for expertise and long-term support; complaints centre on price.
Best for Northern Rivers and south-east Queensland properties. Look elsewhere for budget systems or remote western areas.
Best for Central and Western NSW: NSW Country Solar
NSW Country Solar, trading name of Redfern Power Solutions, is a Wellington-based electrical business that designs stand-alone systems for farms and rural homes across the Central West and beyond, including Cobar, Bourke and Lightning Ridge.
Pros
- Genuine stand-alone design: sizing to daily energy use, battery autonomy, optional generator integration and monitoring
- Widest off-grid hardware range here: Selectronic, Victron, SMA, Sigenergy, Sungrow and Fronius
- Says it holds SAA accreditation for design and installation, with NSW electrical licence 304121C
- 4.9 stars from roughly 140 Google reviews as of October 2026
Cons
- Small regional business, so peak-season lead times can stretch
- Warranty terms and prices are not published
- Also runs security and networking work, so solar is one of several trades
Enquire at nswcountrysolar.com.au, or browse all NSW installers in our directory.
Key facts. 10+ years in the Central West. Covers Dubbo, Bathurst, Orange, Mudgee, Parkes and outlying stations.
Why we selected them. Far-west properties need a local electrician who will drive out; most city off-grid specialists will not.
Products and brands offered. REC, AIKO and Trina panels, Selectronic, Victron and SMA inverter-chargers, PowerPlus batteries and Sigenergy.
Installation quality and reputation. Reviews praise practical advice and reliable crews.
Pricing and value. Not published.
Warranty and after-sales support. Local servicing is the advantage. Ask for the workmanship term and response time to remote sites.
What customers praise and what complaints recur. Strong praise; no recurring complaint pattern in public reviews.
Best for farms and rural homes west of the Great Dividing Range. More on our NSW top installers page. Look elsewhere on the coast.
Best for Regional Victoria: RACV Solar
RACV Solar is the motoring club’s energy arm, built partly on acquired regional installers such as Gippsland Solar. It runs a dedicated off-grid service with local teams in Melbourne, Gippsland, the Mornington Peninsula, Geelong and Bendigo, and is unusually open about price.
Pros
- Engineer-designed systems based on load assessment, using Selectronic SP PRO inverter-chargers and PowerPlus lithium batteries
- Published pricing: basic systems from $16,500 after rebates, and around $28,500 for a typical 6.6kW and 16kWh system, both excluding a generator
- A 24/7 emergency support line
- Backed by a large member organisation that will outlast most warranties
Cons
- SolarQuotes reviews (4.4 from roughly 360) report slow after-sales responses and long waits for commissioning
- Google ratings vary widely by branch: 4.1 from roughly 90 at Dandenong South, 4.9 from roughly 40 at Bairnsdale
- Prices quoted exclude a generator, which most off-grid homes need
- Workmanship warranty length is not stated on its off-grid page
Enquire at racv.com.au, or browse all Victorian installers in our directory.
Key facts. Victoria-wide with regional branches; its NSW (Merimbula) branch closed in 2024, according to SolarQuotes.
Why we selected them. A large brand with regional crews and transparent pricing is rare in off-grid, where most firms quote only on request.
Products and brands offered. Selectronic SP PRO Series 2i (3kW to 240kW), Selectronic managed AC coupling, PowerPlus Slimline and Rack batteries (12kWh to 80kWh) and backup generators.
Installation quality and reputation. Installers score 4.6 for installation on SolarQuotes; one review describes a drilled inverter casing that voided a warranty.
Pricing and value. Mid-market, and the published figures are a useful benchmark for any quote.
Warranty and after-sales support. Manufacturer warranties of 10 to 25 years on panels and inverters and 10 years on batteries. After-sales responsiveness is the weak point.
What customers praise and what complaints recur. Praise for professional crews and honest shading advice; complaints about admin errors and delays.
Best for Gippsland, Bendigo and Geelong hinterland properties. See our Victoria top installers page. Look elsewhere if fast after-sales service is your priority.
Best for the Sunshine Coast and Hinterland: AHLEC Solar
AHLEC Solar is a family-owned electrical business at Diddillibah that says it has installed on-grid and off-grid systems across the Sunshine Coast for more than 35 years. It publishes complete off-grid packages on its homepage.
Pros
- Published off-grid packages, for example 13.2kW of solar with a Fronius Primo inverter, a Selectronic 7.5kW inverter-charger and BYD or PowerPlus batteries
- Long local track record with licensed electricians
- 4.9 stars from roughly 140 Google reviews as of October 2026
Cons
- Service area centres on the Sunshine Coast, so western Queensland is outside its core
- Package listings name battery modules (from 4kWh) without stating total usable capacity or days of autonomy, so confirm sizing against your loads
- Workmanship warranty is not published
- Website still cites CEC accreditation, which moved to Solar Accreditation Australia in 2024, so check the SAA register
Enquire at ahlecsolar.com.au, or browse all Queensland installers in our directory.
Key facts. Based in Diddillibah, QLD. Also installs Sungrow, Tesla Powerwall and SolarEdge batteries on grid-connected jobs.
Why we selected them. Hinterland blocks around Maleny and Kenilworth often sit beyond the grid, and AHLEC prices off-grid openly.
Products and brands offered. Fronius, Selectronic, BYD, PowerPlus and Sungrow.
Installation quality and reputation. Reviews highlight tidy installs and clear explanations.
Pricing and value. Packages give a starting point; real systems need load-based sizing.
Warranty and after-sales support. Local crews make callouts practical. Get the workmanship term in writing.
What customers praise and what complaints recur. Praise for honesty and workmanship; no recurring complaint pattern.
Best for Sunshine Coast hinterland properties. More on our Queensland top installers page. Look elsewhere in western Queensland.
Best for Tasmania: Expert Energy Tasmania
Expert Energy Tasmania (Expert Electrical Tasmania) designs and installs off-grid solar and battery systems statewide with what it calls a 100 per cent in-house team, and it offers the clearest workmanship warranty in this guide.
Pros
- 10-year workmanship warranty published
- In-house design and installation, no subcontractors claimed
- Backup generator integration and consumption-based design
- 4.9 stars from roughly 115 Google reviews as of October 2026
Cons
- Equipment brands are not named on its off-grid page
- Tasmania only
- Its 1,000+ installed systems are not broken down by type, so ask for off-grid references specifically
Enquire at expertelectricaltas.com.au, or browse all Tasmanian installers in our directory.
Key facts. Based in Derwent Park, Hobart. More than a decade operating, according to its website.
Why we selected them. Tasmanian winters are the hardest test for off-grid solar, and an in-house team with a written 10-year warranty reduces risk.
Products and brands offered. Solar, battery storage and generators; brands confirmed per quote.
Installation quality and reputation. Reviews praise professional crews and transparent communication.
Pricing and value. Not published. Winter sizing usually means a larger array and generator runtime.
Warranty and after-sales support. The 10-year workmanship warranty is a genuine differentiator.
What customers praise and what complaints recur. Strong praise; no recurring complaint pattern.
Best for Tasmanian properties wanting one accountable in-house team. See our Tasmania top installers page. Look elsewhere on the mainland.
Best for the Top End: Eco Sparks
Eco Sparks is a Darwin solar and electrical contractor claiming more than 25 years of off-grid experience across Darwin, Humpty Doo, Palmerston and the rural area. Tropical heat, humidity and cyclones need specific design, and this is a local specialist.
Pros
- 25+ years of off-grid work in NT conditions, according to its website
- Site assessments covering location, energy needs and environmental conditions
- 5.0 stars from roughly 105 Google reviews as of October 2026
Cons
- Brands listed include LG, which has exited the Australian solar panel market, so confirm current equipment and warranty support
- Service area is the Darwin region; very remote communities may need another contractor
- Warranty terms and pricing are not published
Enquire at ecosparks.com.au, or browse all NT installers in our directory.
Key facts. Based in Berrimah, NT, with published NT electrical licences.
Why we selected them. Long tropical off-grid experience and a near-perfect rating.
Products and brands offered. Fronius, Jinko and Clipsal among those listed.
Installation quality and reputation. Reviews praise reliability and workmanship.
Pricing and value. Not published.
Warranty and after-sales support. Ask about cyclone-rated mounting and battery enclosure cooling.
What customers praise and what complaints recur. Praise for responsiveness; no recurring complaints.
Best for Darwin rural area properties. Look elsewhere for very remote sites.
Best Published Pricing (WA): OffGrid WA
OffGrid WA is a Perth business that designs, supplies and installs stand-alone systems across Western Australia and publishes price tiers, which few off-grid firms do.
Pros
- Four off-grid tiers from $19,000 (Micro) to $99,900+ (Deluxe), including estimated subsidies
- Online off-grid load calculator, generator-compatible designs and custom sizing after site evaluation
- Says it is a Victron approved installer, Sigenergy certified and SAA accredited
- 4.9 stars from roughly 50 Google reviews as of October 2026
Cons
- Years in business are not published
- Warranty terms beyond “extended warranty available” are not stated
- Based in Wangara, Perth, so far-north WA jobs involve long travel
Enquire at offgridwa.com.au, or browse all WA installers in our directory.
Key facts. Based in Wangara, WA. Also sells grid-connected hybrid systems.
Why we selected them. Published tiers make it easy to sense-check any off-grid quote.
Products and brands offered. Victron, Sigenergy, Pylontech, LONGi and Fronius.
Installation quality and reputation. Reviews praise knowledgeable, honest advice.
Pricing and value. Transparent tiers, but price your own loads before relying on them.
Warranty and after-sales support. Get warranty terms and remote callout pricing in writing.
What customers praise and what complaints recur. Mostly praise; too few reviews for a pattern.
Best for WA properties. See our WA top installers page. Look elsewhere in the Kimberley.
How we reviewed
We shortlisted from search results for off-grid solar installers in each state, Google Maps listings around rural centres (Lismore, Dubbo, Bendigo, Gympie, Hobart, Darwin, Perth and Adelaide) and specialist review platforms. We kept only companies whose own websites show stand-alone system design, not just hybrid batteries, and picked the strongest per region.
Each company was assessed on off-grid experience, equipment quality, design process, installation model, pricing transparency, warranty, after-sales support and review patterns. Sources were company websites, SolarQuotes reviews, Google ratings as of October 2026 and DCCEEW and Clean Energy Regulator program information. We requested no quotes, conducted no visits or interviews, and no company paid for placement.
Choosing an off-grid solar installer in Australia
Insist on a load assessment. A good designer asks for every appliance, pump and seasonal load, then sizes for your worst winter week. Packages sized by roof space are a warning sign.
Check the platform. Purpose-built off-grid inverter-chargers (Selectronic, Victron, SMA) are designed for generator integration and long autonomy. Ask what happens when batteries run low.
Ask about days of autonomy and generator runtime. Get the design’s assumed cloudy days and expected annual generator hours in writing.
Use the battery rebate. The federal Cheaper Home Batteries Program covers off-grid batteries. Sites more than 1km from the grid do not need a VPP-capable battery; closer sites need evidence that connection would cost more than $30,000, or VPP-capable equipment. The panels also earn STCs; see our STC rebate guide and battery rebate guide.
Check accreditation. Installer accreditation moved from the Clean Energy Council to Solar Accreditation Australia in 2024; check the SAA register and New Energy Tech approved seller list yourself.
Plan for service distance. Ask who attends a fault, how far they travel and what remote monitoring they provide.
Ask your distributor. Some networks, including Essential Energy in NSW, now install their own stand-alone power systems for fringe-of-grid customers, which may change your decision.
FAQ
How much does an off-grid solar system cost?
Published prices here range from $16,500 (RACV’s basic system, excluding generator) to $99,900+ (OffGrid WA’s top tier). RACV puts a typical 6.6kW and 16kWh home system at around $28,500 after rebates, before a generator. Your loads and autonomy target drive the real number.
How many quotes should I get?
Three, ideally including a dedicated off-grid specialist and a local electrician who can service the system.
Which warranties matter most?
Battery and inverter-charger warranties (10 years is typical) and the installer’s workmanship warranty, which only Expert Energy Tasmania publishes here.
Do I need a generator?
Almost always, for extended cloudy periods. Ask for automatic generator start.
Is a cheap off-grid kit safe?
DIY kits suit small sheds and caravans. Household systems must be designed and installed by licensed electricians to the stand-alone power system standard.
What if my installer goes bust?
Manufacturer warranties survive. Local service does not, which is why longevity matters more off-grid than on-grid. See our solar company failures tracker.
Batteries now or later?
Off-grid systems need batteries from day one. The federal battery discount steps down on 1 January 2027, so timing matters.
What are the red flags in an off-grid quote?
No load assessment, no stated usable battery capacity, no autonomy figure, no generator plan, and deposits above 10 per cent. Our solar quote comparison guide helps.
Related guides
- We Compared 7 Commercial Solar Companies in Australia: These Are the Best
- The 8 Best Solar Batteries in Australia for 2026, Compared
- The 7 Best Batteries for Blackout Backup in Australia for 2026
About this review
Written by the Solar Cobber editorial team. Last updated October 2026.
Solar Cobber is a free, independent Australian solar directory. We may earn referral or advertising fees from installers listed on this site, but commercial relationships never influence rankings, awards or the negatives we publish. No company was contacted about or paid for inclusion. Sources are those listed in the methodology above, all current as of October 2026.