RETC

What RETC does

RETC (Renewable Energy Test Center) is an independent third-party testing laboratory providing certification, bankability, and reliability testing services for photovoltaic modules, inverters, storage systems, and racking products. Founded in 2009 and headquartered in Fremont, California, RETC operates as a subsidiary of Germany's VDE Group, the electrotechnical standards and certification conglomerate. The company runs three facilities — Fremont, CA; Tempe, AZ; and Cagayan de Oro, Philippines — and holds six stacked accreditations (A2LA ISO/IEC 17025, IEC CBTL, TUV Rheinland Partner Lab, UL DAP, ETL Intertek RTL, and VDE Qualified Test Lab) whose test data are accepted by all major Independent Engineers and Owners' Engineers involved in PV project finance.

RETC's core technology is physical hardware testing under extended stress protocols — including damp heat, UV-induced degradation, mechanical load, and hail-impact regimes — designed to surface long-term reliability and performance failures that standard certification regimes miss. The 2026 testing cycle found over 10% of PV module samples failing damp heat and roughly 8.3% showing unacceptable UV-induced degradation. Service offerings span design review, pre-certification support, certification testing, and bankability data packages. The annual PV Module Index (PVMI) report, published since 2009, ranks modules and manufacturers using these extended protocols and functions as both a content-marketing asset and a recurring touchpoint with financiers, developers, and EPCs.

RETC's go-to-market is sales-led and enterprise-direct, serving four horizontal customer segments: module/inverter/storage/racking manufacturers (product certification and R&D validation), developers and EPCs (supplier vetting), financiers and financial institutions (bankability data for project lending), and independent engineers (quantitative inputs for technical due diligence). Revenue is generated through professional services fees on a project basis; pricing is not publicly disclosed. The company has raised only one early-stage round of $2M (2009) and has since been funded operationally as part of the VDE Group, with no external venture or growth capital identified. Beyond its core lab business, RETC operates a corporate giving program repurposing tested PV modules into solar-powered water systems with humanitarian NGOs (Water Mission, Unto, Safe Water Network), which serves as a community/ESG marketing channel rather than a revenue line.

Name

RETC

Legal name

RETC, LLC

Website

https://retc-ca.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Short description

RETC is an independent photovoltaic and renewable energy testing laboratory offering certification, extended stress testing, and bankability data to module, inverter, storage, and racking manufacturers, developers, EPCs, financiers, and independent engineers.

Ownership category

akta.pro rank

Product category

Photovoltaic Testing and Certification Services

NAICS

Testing Laboratories and Services (541380), Testing Laboratories and Services (54138)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Solar Quality, Testing, Certification & Standards (Lab Testing, Inspections, Compliance) (EUAMABAN)

akta.pro secondary industry

Sustainability Testing, Certification & Compliance (LCA, Recyclability/Compostability Testing, FSC/PEFC) (IMALAMAK)

Keywords

• Photovoltaic testing services
• Renewable energy certification
• PV module testing
• Solar certification lab
• Bankability testing

Headquarters

HQ city

Fremont

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Certification Testing Services: RETC provides engineering service and certification testing for photovoltaic and renewable energy products. Services include complete design review, pre-certification support, certification testing, and bankability testing data. They test products from module, inverter, storage, and racking manufacturers.
2. PV Module Index (PVMI) Annual Report: RETC releases an annual PV Module Index (PVMI) report evaluating what are the best PV modules and who are the most-trusted manufacturing partners. The 2026 PV Module Index Report evaluates photovoltaic modules using extended stress testing.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

RETC is an accredited engineering service and certification testing provider for photovoltaic and renewable energy products. The company tests products from module, inverter, storage, and racking manufacturers through services spanning complete design review, pre-certification support, certification testing, and bankability testing data. Its PV Module Index (PVMI) annual report benchmarks photovoltaic modules using extended stress testing for industry stakeholders.

Product overview

RETC (Renewable Energy Test Center) is a leading engineering service and certification testing provider for photovoltaic and renewable energy products. The company offers a portfolio of testing and evaluation services centered around its core Certification Testing Services, which evaluate PV modules, inverters, storage systems, and racking across reliability, performance, and quality metrics. The PV Module Index (PVMI) annual report provides industry benchmarking and ranking of module manufacturers. Bankability Testing Data and Pre-Certification Support services round out the offering, enabling manufacturers to bring products to market while providing financiers and developers with the data needed for investment decisions. Since 2009, RETC has served the full renewable energy ecosystem including manufacturers, developers, EPCs, financiers, and independent engineers.

Differentiator

Problem solved

Functional benefit

Brands

• PVMI: PV Module Index - annual report evaluating photovoltaic modules on reliability, performance, and quality metrics.

Products and services

• RETC Certification Testing Services Comprehensive certification testing services for photovoltaic modules, inverters, storage systems, and racking manufacturers, evaluating reliability, performance, and quality against industry standards. Delivered through A2LA ISO/IEC 17025, IEC CBTL, TUV Rheinland Partner Laboratory, UL DAP, ETL Intertek RTL, and VDE Qualified Test Laboratory accredited facilities.
• PV Module Index (PVMI) Annual Report Annual report evaluating and ranking photovoltaic modules on reliability, performance, and quality using extended stress testing. The report identifies the top PV modules and most-trusted manufacturing partners, providing bankability insights for investors, developers, EPCs, financiers, and independent engineers.
• Bankability Testing Data Testing data and quantitative results that provide financiers, financial institutions, and independent engineers with the information needed to assess investment risk and project bankability. Accepted by all Independent Engineers and Owners.
• Pre-Certification Support Comprehensive support services including complete design review and test plan creation to help manufacturers prepare products for certification and market success. Includes construction evaluation and technical report authorship for downstream certification projects.

Quantifiable outcome

• Over 10% of PV module samples failed damp heat tests; approximately 8.3% showed unacceptable ultraviolet-induced degradation in RETC's 2026 testing
• +2 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Three partnerships are on record, tiered minor and core.

• UntominorOthersRETC partners with Unto, a non-profit that helps people living in the toughest places on earth by relieving suffering, restoring dignity, and revealing hope. The organization provides solar panels to places in Africa where no other energy resources exist. RETC donates PV modules that are in full working condition after testing.
• Water MissioncoreOthersWater Mission is a nonprofit engineering organization that designs, builds, and implements safe water, sanitation, and hygiene (WASH) solutions. Since 2001, Water Mission has provided access to safe water for more than 5 million people in 56 countries. RETC has donated approximately 240,000 watts of solar energy enabling Water Mission to pump water for nearly half a million people. Projects include a community well in Gambiza, Zimbabwe serving 500 families.
• Safe Water NetworkminorOthersSafe Water Network is a Water Mission partner involved in community projects. A six-panel solar array project in Obeyeie, Ghana pumps 40,000 liters of treated, safe water to the community every day.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Intertek: Global TIC provider offering ETL mark certification, solar product testing, and RTL accreditation. RETC is an ETL Intertek Recognized Test Laboratory, creating a similar partner/competitor dynamic to UL.
• DNV: Provides independent engineering, bankability studies, and technical due diligence for utility-scale solar projects — directly overlapping with RETC's bankability data and Independent Engineer support services.
• TÜV Rheinland: Global testing, inspection, and certification giant with extensive solar/PV module testing services and CB Scheme recognition. RETC is a TÜV Rheinland Partner Laboratory, making it both an ally and a competitor for PV certification work.
• PI Berlin: Berlin-based PV testing laboratory specializing in PV module reliability, performance, and bankability testing — one of the most direct technical comparables to RETC's extended stress protocols.
• UL Solutions: Major NRTL providing PV module certification, UL Mark testing, and Data Acceptance Programs. RETC holds UL DAP status, positioning UL as both a certification partner and a direct competitor for end-customer testing work.
• Kiwa PVEL (formerly PVEL): PV Evolution Labs runs the well-known PVEL PV Module Reliability Scorecard, a direct comparator to RETC's PVMI annual report and its extended stress testing methodology for PV module bankability.

Broad incumbents

• SGS: One of the world's largest TIC firms offering PV module testing, certification, and supply chain quality services across global markets — competing with RETC at the enterprise manufacturer level.
• Bureau Veritas: Global TIC company with a growing solar/PV testing portfolio, particularly in emerging markets — competing for utility-scale solar project bankability work alongside RETC.
• VDE Renewables: Sister entity within the VDE Group providing broader renewable energy certification and quality assurance services. As RETC's parent-affiliated counterpart, it represents both internal coordination opportunities and overlap risk.

Emerging players

• Fraunhofer ISE: Germany-based applied research institute with significant PV module and inverter testing capabilities, often collaborating on next-generation PV technology qualification — overlapping with RETC's R&D testing work.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/retc.ca
• LinkedInlinkedin.com/company/retcllc

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds1 record

Investors

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 RETC