The records
Sorted by years trading under the current ABN, longest first, not by any quality judgement. "Trading names" counts every registered business name on the entity, which is often more than one.
| Company | ABN status | GST registered | Years trading | Trading names | Registered postcode |
|---|---|---|---|---|---|
| Sunlight Solar | Active | Yes | 26 yrs | 1 | 3213 |
| Green Solar | Active | Yes | 18 yrs | 3 | 3165 |
| Green Solar Energy | Active | Yes | 18 yrs | 3 | 2163 |
| Solar Harness | Active | No | 18 yrs | 3 | 6163 |
| Ads Solar | Active | Yes | 17 yrs | 1 | 2153 |
| Solar Installation | Active | Yes | 17 yrs | 13 | 2208 |
| Solar Juice | Active | Yes | 17 yrs | 0 | 2161 |
| Solar Power Nation | Active | Yes | 17 yrs | 4 | 2060 |
| Ausgreen Solar | Active | Yes | 16 yrs | 5 | 2142 |
| Solar World | Active | Yes | 15 yrs | 5 | 2195 |
| Natural Solar | Active | Yes | 14 yrs | 1 | 2069 |
| Outback Solar | Active | Yes | 13 yrs | 10 | 2750 |
| Solar Nation | Active | Yes | 13 yrs | 6 | 3061 |
| Rescom Solar | Active | Yes | 12 yrs | 1 | 2756 |
| Sapphire Solar | Active | Yes | 12 yrs | 1 | 3013 |
| Shark Solar | Active | Yes | 12 yrs | 2 | 2145 |
| Beyond Solar | Active | Yes | 11 yrs | 1 | 2565 |
| Grand Solar | Active | Yes | 11 yrs | 0 | 2150 |
| Macarthur Solar | Active | Yes | 11 yrs | 13 | 2557 |
| Solar Harbour | Active | Yes | 11 yrs | 1 | 2153 |
| Solar National | Active | Yes | 11 yrs | 1 | 2145 |
| 3p Solar | Active | Yes | 9 yrs | 1 | 2766 |
| Instant Solar | Active | Yes | 9 yrs | 5 | 2148 |
| Penrith Solar | Active | Yes | 9 yrs | 89 | 2750 |
| Solar Chief | Active | Yes | 9 yrs | 1 | 2770 |
| Solar Joint | Active | Yes | 9 yrs | 2 | 2128 |
| Sunboost Solar | Active | Yes | 9 yrs | 2 | 2766 |
| Sungold Solar | Active | Yes | 9 yrs | 1 | 2565 |
| Greentech Solar | Active | Yes | 8 yrs | 1 | 2146 |
| Interactive Solar | Active | Yes | 8 yrs | 0 | 2165 |
| Ultimate Solar | Active | Yes | 8 yrs | 3 | 2557 |
| Ag Solar | Active | Yes | 7 yrs | 0 | 2229 |
| Austra Solar | Active | Yes | 7 yrs | 0 | 2557 |
| Australian Design Solar | Active | Yes | 7 yrs | 0 | 2153 |
| Ayka Solar | Active | Yes | 7 yrs | 1 | 2075 |
| Origin Solar | Active | Yes | 7 yrs | 1 | 2760 |
| Solar Bright | Active | Yes | 7 yrs | 11 | 2170 |
| Solar Junction | Active | Yes | 7 yrs | 0 | 2145 |
| Solar Secure | Active | Yes | 7 yrs | 1 | 2761 |
| Solid Solar Services | Active | Yes | 7 yrs | 1 | 2166 |
| Zip Solar | Active | Yes | 7 yrs | 2 | 2147 |
| Fortune Solar | Active | Yes | 6 yrs | 0 | 2762 |
| Teck-solar | Active | Yes | 6 yrs | 2 | 2138 |
| Boost Solar | Active | Yes | 5 yrs | 7 | 4109 |
| Platinum Solar Group | Active | Yes | 5 yrs | 0 | 2200 |
| Renewco Solar | Active | Yes | 5 yrs | 7 | 2097 |
| Solar Battery Group | Active | No | 5 yrs | 6 | 3128 |
| Solar Hub | Active | Yes | 5 yrs | 3 | 2141 |
| Clean Earth Solar | Active | Yes | 3 yrs | 1 | 2754 |
| Hills Natural Solar | Active | Yes | 3 yrs | 0 | 2153 |
| Nrg Solar | Active | Yes | 2 yrs | 3 | 2759 |
| Solar Ease | Active | Yes | 2 yrs | 0 | 2211 |
| Everyday Solar | Active | Yes | 1 yrs | 3 | 2170 |
| True Solar Nation | Active | Yes | 1 yrs | 1 | 2762 |
"Registered postcode" is the ABR main business location, not necessarily where a company sends install crews. A company can and does service well beyond its registered address.
What to check before you sign
The same five checks apply to every company above, and to any installer that quotes you who isn't on this list at all.
- Match the ABN on the quote to the register. Not the logo, not the website, the ABN printed on the paperwork. A quote with no ABN on it is not a quote worth having.
- Confirm the installer holds current CEC accreditation. The person physically on the roof has to hold Solar Accreditation Australia accreditation for the system to be eligible for federal STCs at all.
- Make them itemise the rebate. "Rebate included" is not a number. Work out what yours should be on the calculator first, then hold the quote to it.
- Check who holds the warranty. Workmanship warranties sit with the installing legal entity, not the brand on the van. Get the entity name and check it against the ABN.
- Never pay a large deposit. A deposit that is a big fraction of the job, especially before a site inspection, is the single most common way people lose money in this industry.
We match every Sydney lead with one vetted installer, not a call-centre bidding war.
Get matched with a vetted installerCommon questions
How do I find a reliable solar installer in Sydney?
Start from the public record: match the ABN on any quote to the Australian Business Register, confirm the installer holds current Solar Accreditation Australia (CEC) accreditation, make sure the rebate is itemised rather than folded into "inclusions", check which legal entity actually holds the workmanship warranty, and never pay a large deposit before a site inspection. These five checks catch most of the trouble regardless of which company you're looking at.
Who are the best solar installers in Sydney?
We don't rank installers and this page won't tell you. We get paid when a partner installer fits a system, so publishing an opinion about companies we may compete with would be a conflict of interest, not useful advice. What this page lists instead is every company registered near Sydney that we could match to a genuine Australian Business Register record, sorted by years trading, with no scores attached. Judge any of them yourself against the register: match the ABN on the quote, confirm current CEC accreditation, make sure the rebate is itemised, check which entity holds the warranty, and never pay a large deposit before a site inspection.
What is the average cost to install solar panels in Sydney?
We don't have a priced system size on file for Sydney yet.
How many solar installers are there in Sydney?
54 companies on our list have an Australian Business Register entity within range of Sydney as of 3 August 2026. That counts registered business addresses near the city, not every installer who sends crews here, so treat it as a floor, not a total.
Company records come from the Australian Business Register, retrieved 3 August 2026. Companies are matched to Sydney when at least one registered business address falls within a set radius of the city centre (a coarse public-record grouping, not a service- area claim). Registers change and companies expand their footprint, so check the live ABR entry linked from each company's own page before relying on anything here. If you are connected to a business listed here and something is wrong, tell us.