RayGen Funding, Investors & Competitors

RayGen has raised $121M across 3 funding rounds, most recently a $81M Series D in April 2025.

Last RayGen funding round

$81M

Series D · Apr 2025

Cumulative funding RayGen raised

$121M

across 3 funding rounds

Key investors in RayGen

RayGen Overview

About RayGen

RayGen is a Melbourne-based innovator in utility-scale solar power and storage systems. Its PV Ultra cogeneration modules pair photovoltaics with hydro-storage for dispatchable renewable energy, delivering 1 MWac pilots under PPAs in Australia. RayGen manufactures 25 MWac solar panels at its Victoria facility, supported by ARENA funding for projects combining 3 MW thermal input with grid-following inverters.


Founded

2010

HQ

AustraliaMelbourne

Website

raygen.com

Status

Privately held

Customer focus

B2B

Revenue model

Product sales, Usage-based

RayGen Funding History

RayGen has raised a total of $121M across 3 funding rounds.

RayGen's first fundraising round was a $7M Series B in May 2017. The most recent completed round was a $81M Series D in April 2025.

RayGen funding rounds

RayGen funding rounds
DateStageInvestorsRaisedDeal Summary
Apr 2025Series DSLB (lead); Oxy Technology Ventures; AGL Energy; Australian Renewable Energy Agency; Breakthrough Victoria; Quanta Services; Equinor Ventures; Photon Energy$81MRayGen Resources, an Australian company developing utility-scale solar and long-duration energy storage using next-generation solar thermal hydro technology, completed a Series D funding round raising A$127 million (approximately $76-83 million USD). The round, one of Australia's largest clean energy tech capital raises, was led by SLB with a A$31 million follow-on investment and a Strategic Deployment Agreement to accelerate global market deployment. New investors included Quanta Services, Oxy Technology Ventures, and Breakthrough Victoria, while Equinor Ventures, AGL Energy, Photon Energy Group, and existing shareholders participated, with the Australian Renewable Energy Agency (ARENA) adding A$17 million to its prior A$10 million commitment. RayGen's flagship Carwarp asset in Victoria operates as one of the world's largest next-generation long-duration energy storage projects, secured under an offtake agreement with AGL. The company has also partnered with Photon Energy Group for a 150 MW project at Yadnarie in South Australia and a 250 MW project in South Africa. The funding validates RayGen's technology addressing renewable intermittency and supports manufacturing expansion, project pipeline growth, and international deployments. CEO Richard Payne highlighted the support from strategic investors positioning RayGen for Australia's energy transition and global scaling. SLB's Irlan Amir emphasized the technology's potential for clean, flexible energy solutions. ARENA's Darren Miller noted a decade of innovation.
Apr 2024Series DBreakthrough Victoria (lead); SLB (lead)$33MRayGen Resources is an Australian utility-scale solar and long-duration energy storage company that has developed proprietary solar-thermal hydro storage technology achieving 70 percent round-trip efficiency. The company's flagship project in Carwarp, Victoria is the world's largest operating next-generation thermal hydro long-duration energy storage project, capable of delivering 17 hours of continuous power to the electricity grid. RayGen manufactures proprietary solar modules in Victoria with a new 170MW per year facility underway in Hawthorn East. In its Series D funding round closed in April 2025, RayGen raised A$127 million (approximately USD $76 million) from existing and new investors. The round was led by global technology company SLB with a A$31 million follow-on investment, alongside new investors Breakthrough Victoria (A$20 million), Quanta Services, and Oxy Technology Ventures, while existing backers Equinor Ventures, AGL Energy, and Photon Energy Group increased their stakes. The Australian Renewable Energy Agency (ARENA) contributed an additional A$17 million to a previous A$10 million funding agreement. Alongside the capital raise, SLB and RayGen executed a Strategic Deployment Agreement to accelerate the technology's path to global markets, with SLB providing international sales and engineering support. The funding will be used primarily to enhance RayGen's capabilities to deliver a growing international pipeline by expanding manufacturing, securing the supply chain, and increasing automation for rapid project delivery, with expectations to provide up to 90 Victorian jobs.
May 2017Series BAustralian Renewable Energy Agency (lead)$7M-

Who has invested in RayGen?

8 investors have backed RayGen across its funding rounds, including SLB, Breakthrough Victoria, Australian Renewable Energy Agency, Equinor Ventures, Quanta Services and AGL Energy.

Lead investors include SLB, Breakthrough Victoria and Australian Renewable Energy Agency.


RayGen Investors

Investors in RayGen by funding rounds participated
InvestorHQRoundsRoleFirst check
Australian Renewable Energy AgencyAustraliaCanberra2LeadMay 2017
Breakthrough VictoriaAustraliaMelbourne2LeadApr 2024
SLBUnited StatesUnited States2LeadApr 2024
Oxy Technology VenturesUnited StatesHouston, TX1ParticipantApr 2025
AGL EnergyAustraliaSydney1ParticipantApr 2025
Quanta ServicesUnited StatesHouston, TX1ParticipantApr 2025

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RayGen Competitors

RayGen competitors include listed companies like Vistra, GE Vernova, Iberdrola and China Yangtze Power, and private ones like Adani New Industries and SK on.

Public and private companies comparable to RayGen
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Adani New IndustriesIndiaAhmedabadPrivate--$50B-
VistraUnited StatesUnited StatesPublicly listed$18B$5B$48B3.3x
GE VernovaUnited StatesUnited StatesPublicly listed$38B$3.2B$246B5.4x
IberdrolaSpainSpainPublicly listed$51B$17B$158B4.3x
China Yangtze PowerChinaChinaPublicly listed$13B$11B$104B11.3x
SK onSouth KoreaSeoulPrivate--$17B-

RayGen Public Comps

RayGen is still privately-owned, but its public comps include Aramco, Tesla, ExxonMobil, Chevron, PetroChina, Shell, GE Vernova, CATL, TotalEnergies and NextEra Energy.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Aramco$446B$213B3.9x3.7x8.2x7.1x
Tesla$95B$10B15.0x13.8x140.8x97.4x
ExxonMobil$324B$68B2.2x1.8x10.5x8.0x
Chevron$184B$41B2.4x2.0x10.8x7.2x
PetroChina$427B$70B0.8x0.7x4.7x4.4x
Shell$267B$55B1.2x1.0x5.8x4.5x
GE Vernova$38B$3.2B6.2x5.4x73.5x43.5x
CATL$63B$16B2.8x2.1x11.0x9.2x

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Common questions about RayGen

When was RayGen founded?RayGen was founded in 2010.
Where is RayGen headquartered?RayGen is headquartered in Melbourne, Australia.
Is RayGen publicly listed?No, RayGen is a private, VC-backed company.
How much funding has RayGen raised?RayGen has raised $121M across 3 funding rounds.
What was RayGen's last funding round?RayGen's last funding round was a $81M Series D in April 2025, led by SLB.
Who are RayGen's investors?RayGen's investors include Australian Renewable Energy Agency, Breakthrough Victoria, SLB, Oxy Technology Ventures, AGL Energy, Quanta Services, Equinor Ventures and Photon Energy.
Which companies are comparable to RayGen?Companies comparable to RayGen include Adani New Industries, Vistra, GE Vernova, Iberdrola, China Yangtze Power and SK on.

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