Avantus

What Avantus does

Avantus is a utility-scale solar and solar-plus-storage project developer headquartered in San Diego, California, focused on the Western United States. Founded in 2009 as 8minutenergy Renewables and rebranded to Avantus in 2022, the company develops, finances, constructs, and operates large-scale renewable energy projects across California, Arizona, Texas, Nevada, and Utah. Its technology platform pairs utility-scale photovoltaic generation with integrated battery energy storage in named product configurations — Avantus Baseload, Peaker, Super Peaker, Flex, Sundown, Stretch, Seasonal, and Solar Only — protected by 26+ U.S. patents and additional Australian and Canadian filings. The company has cumulatively developed and sold 6.5 GWp of solar and 6.3 GWh of storage, has over 5 GW operating or under construction, and manages a 24-30 GW solar / 75-94 GWh storage development pipeline.

Avantus monetizes through multiple channels: long-term Power Purchase Agreements (PPAs) with utilities, municipalities, community choice aggregators, and corporate buyers (including Toyota Motor North America and Amazon via AES); Build-Transfer Agreements for utilities and large industrial customers; asset management services for operating assets; and project sales to institutional buyers such as D. E. Shaw Renewable Investments (DESRI), AES, and Gore Street Energy Storage Fund. Customers include Arizona Public Service, San Diego Gas & Electric, Southern California Edison, LADWP, Pacific Gas & Electric, Toyota, Amazon, and several California CCAs. The company is majority-owned by KKR with EIG as sole minority equity partner; combined committed capital exceeds $1 billion, supplemented by a $522 million corporate development facility and project-level debt and tax equity from lenders including Truist, BBVA, CIBC, ING, Mizuho, and SMBC. Recent CEO Cliff Graham (formerly operating chief) succeeded founder Dr. Tom Buttgenbach following the 2024 KKR transaction, alongside new CFO David Flory and CDO Venkatesh Inti.

Name

Avantus

Legal name

Avantus LLC

Website

https://avantus.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

101–250 employees

Short description

Avantus is a utility-scale solar and energy storage developer serving utilities, CCAs, and corporate buyers in the Western U.S. with an integrated solar-plus-storage product platform, monetizing through long-term PPAs, build-transfer agreements, and project sales.

Ownership category

akta.pro rank

Product category

Utility-Scale Solar and Energy Storage Development

NAICS

Solar Electric Power Generation (221114), Electric Power Generation, Transmission and Distribution (2211)

SIC

Electric Services (4911)

akta.pro primary industry

Utility-Scale Generator PPAs (Project Offtake) (EUAGADAB)

akta.pro secondary industries

Hybrid PPAs (Renewables + Storage) & Firm Renewable Products (EUAGADAI), C&I PPAs & Virtual PPAs (VPPA) Origination & Management (EUAGACAF), PPA Origination, Structuring & Offtake Contracting (Physical/Financial, Sleeves) (EUAMAMAD)

Keywords

• Utility-scale solar development
• Solar-plus-storage projects
• Renewable energy development
• Power purchase agreements
• Clean energy projects

Headquarters

HQ city

Los Angeles

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Power Purchase Agreements (PPAs): Avantus develops and operates solar and storage projects, selling the full output to customers through long-term virtual power purchase agreements. Revenue is generated from the sale of electricity and associated renewable energy attributes (RECs) under long-term contracts with utilities, municipalities, and corporate buyers.
2. Build-Transfer Agreements (BTAs): For utilities and large-load customers seeking long-term ownership, Avantus manages every stage from development through construction and commissioning, delivering fully operational projects. Revenue recognized upon transfer of ownership.
3. Asset Management Services: Avantus manages operating assets with focus on long-term performance including dispatch, monitoring, O&M, performance engineering, reporting, storage augmentation, and system upgrades. Ongoing revenue from asset management contracts.
4. Project Development and Sale: Avantus develops projects from greenfield concept through permitting, engineering, and construction, then sells completed projects to buyers like DESRI. Revenue from project sales with long-term PPAs included or pre-arranged.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Avantus develops, builds, owns, and operates utility-scale solar and solar-plus-storage projects across the Western United States. The company sells power through long-term Power Purchase Agreements (PPAs) directly to utilities, municipalities, community choice aggregators, and corporate buyers, while also delivering projects via Build-Transfer Agreements and providing ongoing asset management services for operating assets.

Product overview

Avantus is a utility-scale solar and energy storage developer offering integrated solar-plus-storage solutions across the Western United States. The company's product portfolio centers on integrated solar and storage technology that delivers flexible, predictable power to the grid long after sunset. Named product lines include Avantus Baseload (high-efficiency baseload solar at 60% summer capacity factor), Avantus Peaker, Avantus Super Peaker, Avantus Flex, Avantus Sundown (extended evening generation), Avantus Stretch (extended duration storage), Avantus Seasonal, and Avantus Solar Only. Avantus develops, builds, and operates projects across California, Arizona, Texas, and Nevada, with notable projects including Aratina 1 (200 MW/500 MWh), Kitt Solar (100 MWac/400 MWh), Norton Solar (159 MW), Bellefield 1 & 2, and the Eagle Shadow Mountain project. The company manages the full project lifecycle from greenfield development through construction and asset management.

Differentiator

Problem solved

Functional benefit

Products and services

• Integrated Solar and Storage

Quantifiable outcome

• 30 GW solar / 94 GWh storage pipeline capable of powering 20 million people
• +6 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature11 records

Partnerships

16 partnerships are on record, tiered major, core and minor.

• Toyota Motor North AmericamajorOthers · 18 March 2026Toyota Motor North America entered into a virtual power purchase agreement for the output of the 159 MW Norton Solar Project developed by Avantus and Toyota Tsusho America. Project supports Toyota's clean energy goals and climate targets.
• D. E. Shaw Renewable Investments (DESRI)majorStrategic or Co-development Partner · 31 October 2024DESRI acquired the Catclaw Solar and Energy Storage Project from Avantus for approximately 225 MWac solar and 250 MW/1,000 MWh storage capacity. This is the fourth project Avantus has sold to DESRI. DESRI expects to bring Catclaw online in 2026.
• Toyota Tsusho America (TAI)majorStrategic or Co-development Partner · 22 August 2024Avantus and Toyota Tsusho America collaborated to develop the Norton Solar Project in Texas. Construction began August 2024 and achieved substantial completion October 2025. TAI signed a virtual power purchase agreement with Toyota Motor North America for the project's full output.
• Bureau of Land Management (BLM)coreStrategic or Co-development Partner · 16 November 2022BLM partnered with Avantus on the Onyx Conservation Project, retiring grazing rights on 215,000 acres of public land in Kern County for permanent wildlife habitat protection. This first-of-its-kind conservation effort balances clean energy development with ecosystem preservation.
• California Department of Fish and Wildlife (CDFW)coreStrategic or Co-development Partner · 16 November 2022CDFW partnered with Avantus on the Onyx Conservation Project to protect 215,000 acres of critical California habitat and wildlife, including the western Joshua Tree and 20 sensitive wildlife species. The project retires grazing rights for land mitigation, preserving a contiguous desert ecosystem.
• U.S. Fish and Wildlife Service (USFWS)coreStrategic or Co-development Partner · 16 November 2022USFWS partnered with Avantus on the Onyx Conservation Project, contributing to one of the largest mitigation projects in the nation. The project protects critical habitat for endangered species including the California condor and Mojave desert tortoise.
• Arizona Public Service (APS)coreOthersAPS signed power purchase agreements with Avantus for multiple projects including Kitt Solar (100 MWac/130 MWdc + 400 MWh) and Catclaw Solar (225 MWac + 250 MW/1,000 MWh). APS serves as the utility offtaker for these projects in Arizona.
• FluencemajorTechnology or IntegrationFluence supplies battery storage technology for the Kitt Solar and Energy Storage Project in Arizona. Fluence is a leading global energy storage technology provider specializing in grid-scale battery energy storage systems.
• RES (Renewable Energy Systems)majorImplementation/ SI/ Consulting PartnerRES provides engineering, procurement, and construction (EPC) services for the Kitt Solar and Energy Storage Project in Arizona. RES is a global renewable energy company specializing in project development and construction.
• Central Coast Community EnergymajorOthersCentral Coast Community Energy is an offtaker for the Aratina 1 solar and storage project in Kern County, California. As a community choice aggregator, they procure clean energy on behalf of communities in California's Central Coast region.
• Silicon Valley Clean EnergymajorOthersSilicon Valley Clean Energy is an offtaker for the Aratina 1 solar and storage project in Kern County, California. As a community choice aggregator, they provide clean electricity to communities in Silicon Valley.
• AESmajorOthersAES is the owner of Bellefield 1 (641 MWdc and 2,000 MWh) and Bellefield 2 (663 MWdc and 2,000 MWh) projects, with Amazon as the offtaker. Avantus developed these projects in collaboration with AES.
• Gore Street Energy Storage FundmajorOthersGore Street Energy Storage Fund owns the Big Rock 1 energy storage project (400 MWh) in Imperial County, California. Avantus developed this project which is now operational.
• International Brotherhood of Electrical Workers (IBEW)coreStrategic or Co-development PartnerAvantus has a long-standing partnership with IBEW and local unions. Every project built in California and the Southwest has been constructed with IBEW members. This partnership brings skilled construction workforce including panel installers and state-certified journeyman electricians to Avantus projects.
• White & CaseminorImplementation/ SI/ Consulting PartnerWhite & Case served as legal counsel to Avantus for the $300 million tax equity investment in the Aratina 1 solar and storage project. Global law firm providing legal advisory services for complex financing transactions.
• Foley & Lardner LLPminorImplementation/ SI/ Consulting PartnerFoley & Lardner served as legal counsel for Avantus on the sale of the Catclaw Solar and Energy Storage Project to DESRI.

Scale indicators16 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• AES Clean Energy: Utility-scale solar and storage developer in the U.S. with overlapping Western U.S. projects; AES is the co-developer/owner of Bellefield 1 and 2 with Avantus and Amazon as offtaker, making it the most direct comparable on project profile, customer base, and pipeline scale.
• Clearway Energy: Publicly traded utility-scale renewables operator and developer with a large Western U.S. solar and storage portfolio; directly competes with Avantus in CAISO and Desert Southwest RFPs for utility and CCA offtakes.
• Recurrent Energy: Canadian Solar's project development arm and one of the largest utility-scale solar+storage developers in the U.S., with significant Western U.S. exposure; highly comparable in business model (PPA origination, project sales to investors) and product mix.
• EDF Renewables North America: Major utility-scale renewable developer with significant solar and storage projects in California, Arizona, and Texas; competes head-to-head with Avantus for utility PPAs and corporate offtakes in the Western U.S.
• Lightsource bp: Global utility-scale solar developer and operator with substantial U.S. solar and storage activity; directly competes with Avantus in C&I and utility solar+storage origination across the Western U.S.
• Arevon Energy: U.S. utility-scale solar and storage developer (formerly 8point3 Energy Partners) with a multi-GW operating and development portfolio; comparable on customer mix (utilities, CCAs, corporates), pipeline scale, and Western U.S. geographic focus.
• Cypress Creek Renewables: Independent U.S. solar and storage developer focused on community solar, utility-scale, and C&I; overlaps with Avantus in Western U.S. project development and corporate offtake origination.
• SB Energy: SoftBank-backed utility-scale solar and storage developer with major Western U.S. projects; directly comparable in pipeline scale, technology approach (integrated solar+storage), and customer profile.

Broad incumbents

• Engie North America: Global energy major with a large North American renewable development arm covering solar, storage, wind, and broader energy services; competes with Avantus on utility-scale solar+storage but with a much broader portfolio and balance sheet.
• Invenergy: Large independent U.S. renewable power developer with solar, storage, wind, and transmission projects across multiple regions; competes with Avantus in utility-scale solar+storage RFPs while also operating adjacent technologies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/avantus
• Xx.com/avantusenergy

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds11 records

Investors17 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Avantus