Solaria
Solaria is a US-based photovoltaic module manufacturer producing residential and commercial solar panels under the PowerXT and PowerX brands, now integrated into SunPower, Inc.
- Company typePublic
- Founded2000
- HeadquartersOakland, United States
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What Solaria does
Solaria is a US-based photovoltaic module manufacturer, headquartered at 45700 Northport Loop East in Fremont, California. The company designs and produces residential and commercial PV modules under the PowerXT and PowerX product lines, with module power outputs ranging from 355W to 430W across AC and DC configurations. The AC variants integrate microinverters for direct AC output, while the DC modules serve standard rooftop and commercial installations. As of June 3, 2025, Solaria's warranty services are administered globally by SunPower, Inc. (formerly Complete Solaria, Inc.), following the company's integration into SunPower's corporate structure. The company was founded in 2000 and operates with a headcount of 51-100 employees.
The company's core technical differentiation centers on its proprietary cell architecture, particularly the series-parallel interconnected cell design used in the PowerXT line, which delivers improved shading tolerance relative to conventional series-wired modules. Solaria publishes technical documentation including module datasheets, installation guides, whitepapers on shading performance and DC:AC ratio optimization, and MLPE (module-level power electronics) selection guides for system integrators. Its product portfolio spans AC modules with integrated microinverters and standard DC modules for residential rooftop installations, as well as higher-power commercial-grade modules at 420-430W (PowerXT 430C-PD and 420C-BD variants).
Solaria historically operated a capital-intensive module manufacturing and sales business model, raising approximately $253 million in venture and growth-stage funding between 2004 and 2019 from investors including Adams Street Partners, NGEN Partners, Sigma Partners, Moser Baer, Qcells, Kline Hill Partners, Presidio Partners, Structural Capital, and Western Technology Investment. The company sells through solar installer and distributor channels, primarily in the United States. Following the 2025 transition to SunPower, Inc., Solaria's products and warranty operations are integrated into SunPower's residential and commercial solar offerings, ending Solaria's standalone operating posture.
Solaria firmographics
Firmographics- Name
- Solaria
- Legal name
- Solaria (Spanish energy firm - legal name not explicitly disclosed in sources)
- Website
- https://solaria.com
- Company type
- Public
- Founded year
- 2000
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Solaria is a US-based photovoltaic module manufacturer producing residential and commercial solar panels under the PowerXT and PowerX brands, now integrated into SunPower, Inc.
- Ownership category
- akta.pro rank
Solaria industry classification
Industry- Product category
- Solar Photovoltaic Modules
- akta.pro primary industry
- Solar PV Module Manufacturing (Cells, Modules, Thin-Film) (EUAMABAD)
- akta.pro secondary industries
- Solar Roofing & Roof-Mounted PV Systems (IMADAFAO), Solar Inverters, Power Electronics & MLPE (String/Central Inverters, Optimizers, Microinverters) (EUAMABAE)
Keywords
Where Solaria is headquartered
LocationHeadquarters
- HQ city
- Oakland
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Solaria business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales
Revenue model
- Solar Energy Generation and Sale: Solaria develops, builds, and operates utility-scale solar PV plants, generating revenue from the sale of electricity under PPAs and merchant arrangements. Revenue from solar generation is long-term and contracted via PPAs with customers and utilities.
- Data Center Infrastructure Services: Solaria generates revenue by providing data center access, grid infrastructure, and long-term PPAs to data center operators. Revenue visibility extends up to 40 years through contracted infrastructure access agreements. The company has secured €3.7 billion in future data center revenues under signed contracts.
- Data Center Development and Investment: Solaria invests in and develops AI data center facilities, with the Puertollano project representing nearly €500 million in investment for the first phase. Revenue accrues from long-term tenant contracts and infrastructure services.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom project-based pricing for AI data center development |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels3 records
Solaria product offering
Product offeringCore offering
Solaria designs and manufactures photovoltaic solar modules under the PowerXT and PowerX brands for residential and commercial rooftop applications. Its portfolio includes AC modules with integrated microinverters (355–365W) and DC modules (360–430W), built on proprietary series-parallel interconnected cell architecture that improves shading tolerance and energy yield.
Product overview
Solaria is a solar panel manufacturer offering residential and commercial photovoltaic modules under the PowerXT and PowerX brands. The PowerXT product line includes both AC modules (with integrated microinverters) and DC modules, ranging from 355W to 430W power outputs. The PowerX 400R offers series-parallel interconnected cells designed for improved shading tolerance. Solaria provides technical documentation including installation guides, whitepapers on shading tolerance and DC:AC ratio optimization, and MLPE selection guides for system integration.
Differentiator
Problem solved
Functional benefit
Products and services
- PowerXT 365-AC Residential AC solar panel module with 365W power output featuring an integrated microinverter for direct AC output, designed for residential rooftop installations.
- PowerXT 360R-PD Residential DC solar panel module with 360W power output designed for standard residential rooftop installations.
- PowerXT 365R-PD Residential DC solar panel module with 365W power output for residential rooftop applications.
- PowerXT 370R-PD Residential DC solar panel module with 370W power output, one of the higher-power residential options in the PowerXT line.
- PowerXT 430C-PD | 420C-BD Commercial-grade solar panel modules available in 430W (PD variant) and 420W (BD variant) power ratings for commercial and industrial installations.
- PowerXT 400R-PM Residential solar panel module with 400W power output using premium module technology.
- PowerXT 430R-PL Residential solar panel module with 430W power output featuring premium large-format cell technology.
- PowerX 400R Residential solar panel module with 400W power output, part of the PowerX product line with series-parallel interconnected cells for improved shading tolerance.
Quantifiable outcome
- €3.7 billion in future contracted revenue (2026-30)
- +3 more outcomes
Companies that use Solaria
Customer profileNamed customers2 records
Segments3 records
Ideal customer profiles2 records
Solaria technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Solaria partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- Telefónica and ACS Joint VenturecoreSolaria is reportedly in talks to acquire a stake in a data center joint venture led by telecommunications firm Telefónica and construction group ACS, valued at approximately €4 billion. A state-owned digital investment holding company (SETT) is already part of the consortium. The project aims to develop a 150MW data center in Spain with potential to scale to 1GW, and has applied for EU AI gigafactories programme funding. This represents Solaria's most significant strategic expansion into data center infrastructure outside its own proprietary platform.
- DatasectioncoreJapanese technology company Datasection partnered with Solaria to develop a 200MW AI data center in Puertollano, Spain. Solaria is converting up to 100,000 sqm of its existing industrial facilities for this purpose. The first phase delivers 40MW of power and nearly €500 million in investment, creating over 100 jobs. Solaria launched a dedicated data center subsidiary in May 2025 to manage this and similar projects. This is Solaria's first major operational data center partnership.
- Merlin PropertiescoreMerlin Properties signed multi-faceted contracts with Solaria covering data center network access, energy infrastructure, and long-term PPAs totalling approximately 1GW of capacity. These agreements generate €3.7 billion in future contracted revenue for Solaria and enable Merlin to achieve up to 30% savings on energy costs. The contracts provide Solaria with up to 40 years of cash flow visibility.
Scale indicators9 records
Recent moves7 records
Expansion highlights3 records
Solaria competitors and assessment
Company assessmentDirect peers
- SunPower (Maxeon Solar Technologies): SunPower/Maxeon is both the entity now administering Solaria warranty and a direct competitor in US residential high-efficiency PV modules. Highly comparable product positioning (premium residential modules with integrated MLPE partnerships) and overlapping installer channels make it the closest direct peer.
- REC Group: REC manufactures premium residential and commercial PV modules (Alpha, N-Peak series) sold through similar US/EU rooftop installer channels. Direct competitor in the high-efficiency residential segment where Solaria also competes.
Broad incumbents
- Qcells (Hanwha Q CELLS): Qcells is a large-scale, vertically integrated module manufacturer with a substantial US residential and utility presence. Comparable in product (residential/commercial modules) but operates at materially larger scale and broader geographic footprint.
- JinkoSolar: JinkoSolar is one of the world's largest PV module manufacturers shipping into US residential, commercial, and utility channels. Directly comparable product category but operates at vastly greater scale with global manufacturing footprint.
- Trina Solar: Trina Solar is a global Tier-1 PV module manufacturer with residential, commercial, and utility product lines distributed in the US. Comparable product category with significantly larger manufacturing scale and broader geographic reach.
- Canadian Solar: Canadian Solar manufactures PV modules across residential, commercial, and utility segments and competes directly in US distribution channels. Directly comparable product line with greater vertical integration and scale.
- First Solar: First Solar is a major US-based thin-film PV module manufacturer focused on utility-scale projects, with growing US manufacturing capacity. Adjacent in product category (PV modules) but differentiated by thin-film technology and utility-scale focus.
- JA Solar: JA Solar is a global Tier-1 PV module manufacturer with residential, commercial, and utility offerings shipping into the US market. Comparable product category with substantially larger manufacturing scale.
- LONGi Green Energy: LONGi is the world's largest mono-crystalline silicon wafer and module producer, with broad residential and commercial PV module lines. Comparable product category but operates at materially greater scale with vertical integration into silicon and wafers.
Others
- Enphase Energy: Enphase is the leading US microinverter manufacturer whose IQ7/IQ8 products pair with AC modules like Solaria's PowerXT AC line. Adjacent relationship — complementary rather than directly competitive — but highly relevant as Solaria's MLPE partner for integrated AC offerings.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat3 records
Key risks5 records
Key highlights5 records
Customer concentration
Solaria social profiles
Digital presenceSolaria financial estimates
Financial estimateRevenue estimate
Valuation estimate
Solaria leadership team
Management profileNumber of profiles
Profiles5 records
Solaria subsidiaries and ownership
Company hierarchySubsidiaries1 record
Solaria funding detail
Funding detailFunding overview
Funding rounds10 records
Investors13 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Solaria M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Solaria
What does Solaria do?
Solaria designs and manufactures photovoltaic solar modules under the PowerXT and PowerX brands for residential and commercial rooftop applications. Its portfolio includes AC modules with integrated microinverters (355–365W) and DC modules (360–430W), built on proprietary series-parallel interconnected cell architecture that improves shading tolerance and energy yield.
Is Solaria a public or private company?
Solaria is a public company. It is classified as venture growth investor backed and is currently operating.
When was Solaria founded?
Solaria was founded in 2000. It employs 51 to 100 people.
Where is Solaria based?
Solaria is headquartered in Oakland, United States, in the North America region.
How does Solaria make money?
Three revenue lines are on record. Solar Energy Generation and Sale is the primary driver. The others are data Center Infrastructure Services and data Center Development and Investment.
Who are Solaria's main competitors?
Direct peers on record are SunPower (Maxeon Solar Technologies) and REC Group. Broad incumbents are Qcells (Hanwha Q CELLS), JinkoSolar, Trina Solar, Canadian Solar, First Solar, JA Solar and LONGi Green Energy. Enphase Energy is listed as an others.
Does Solaria have an API?
No public API is recorded for Solaria.
What industry is Solaria in?
Solaria's product category is Solar Photovoltaic Modules. Its primary akta.pro industry code is EUAMABAD, Solar PV Module Manufacturing (Cells, Modules, Thin-Film), with a secondary code of IMADAFAO, Solar Roofing & Roof-Mounted PV Systems.