PERTH, November 2026 - Regen Power has been named in the Financial Review Fast 100 list for 2026, The Australian Financial Review’s annual ranking of Australia’s fastest-growing established companies.
Regen Power is ranked 63rd on this year’s list, with compound annual growth of 54.27 per cent across the 2024 to 2026 financial years. The Fast 100 ranks companies founded before July 2021 by their growth over that period.
| Rank | Company | CAGR FY24–FY26 (%) |
|---|---|---|
61 |
Best Solar & Batteries | 54.73 |
62 |
National Media | 54.57 |
63 |
Regen Power | 54.27 |
64 |
Tradiespec | 53.72 |
65 |
SiteHive | 53.48 |
66 |
MM MGMT | 53.29 |
67 |
Switch Connect | 51.46 |
68 |
Lioness Fashion | 48.72 |
69 |
Wild Tech | 48.70 |
70 |
Positive Salary Packaging | 48.24 |
Source: The Australian Financial Review, Fast 100 2026 (companies founded before July 2021). Read the coverage on afr.com
For a business that has been installing solar in Western Australia since 2003, the listing reflects something simple: more WA households choosing to generate, store and use their own energy, and trusting a local team to do the work properly.
“We are grateful to be on this list, but the credit sits with other people,” said Nikhil Jayaraj, CEO of Regen Power. “It sits with the families who invited us onto their roofs, and with the installers, electricians, consultants and service staff who turn up every day and do the job well. Growth has only ever been the result of that, never the goal.”
What is behind the growth
The past three years have changed how Perth homes use energy. Home batteries have moved from a niche product to a mainstream decision, helped by state and federal support and by households wanting more control over rising power bills. Regen Power’s work has shifted with it, from solar alone to whole-home systems that combine solar, battery storage and EV charging.
The company has now completed more than 45,000 installations. In 2026 its customers also rated it WA’s best-rated installer with SolarQuotes for the second year running, and SunWiz ranked it the most popular solar installer in WA.
“Growing quickly is only worth something if the quality holds,” Mr Jayaraj said. “The numbers we watch most closely are the ones our customers give us after the install, and whether we are still there for them years later. That is the part we want to keep earning.”
Looking ahead
Regen Power will keep investing in its people, training and after-sales service, and in its research partnership with Curtin University, as more Western Australians add batteries and electric vehicles to their homes.
“Thank you to every customer, team member, supplier and partner who has been part of this,” Mr Jayaraj said. “We will keep doing the simple things well.”
The full Fast 100 list and coverage is available at afr.com
About Regen Power
Regen Power is a Perth-based solar, battery storage and EV charging installer, established in 2003 by the late Emeritus Professor Chem Nayar of Curtin University. The company has completed more than 45,000 installations for homes and businesses. Power That Doesn’t Cost The Earth.
Media Contact: 0894563491 · regenpower.com