Eternal Sun provides high-precision solar simulators and testing solutions for accurate photovoltaic module performance characterization. Their technology-agnostic equipment and services ensure reliable IV testing, temperature coefficient determination, and energy rating assessments, minimizing measurement uncertainty for all PV technologies.
Funding
$2.5M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Founders
Product
Problem
Accurate characterization of photovoltaic (PV) module performance is critical for ensuring energy yield and investment returns. Traditional solar simulators and testing methodologies can introduce significant measurement uncertainty, particularly for emerging PV technologies like perovskites and tandems, and for critical parameters such as temperature coefficients and energy ratings. This uncertainty can lead to misrepresentation of module performance and impact downstream project viability.
Solution
Eternal Sun provides high-precision solar simulators and testing solutions designed to minimize measurement uncertainty across various PV technologies. Their equipment facilitates accurate IV testing, temperature coefficient determination, and energy rating assessments, adhering to international standards like IEC 60904 and IEC 61853. Beyond equipment, the company offers specialized testing and inspection services, including factory inspections and import testing at key logistical hubs, to provide comprehensive quality assurance throughout the solar supply chain. This integrated approach ensures that manufacturers, researchers, and module buyers can confidently verify performance and maximize the value of their solar investments.
Target Audience
The primary target audience includes PV module manufacturers, research and development laboratories, certification bodies, and solar project developers and investors who require accurate and reliable performance data for photovoltaic technologies.
Features
- **Class AAA+ Solar Simulators:** Offers both LED-based steady-state and Xenon-based flash simulators meeting IEC 60904-9 ed. 3 standards for spectral match, spatial uniformity, and temporal stability.
- **Technology Agnostic Testing:** Designed to accurately characterize a wide range of PV technologies, including PERC, TOPCon, HJT, IBC, Perovskite, Tandem, and Thin Film modules.
- **Temperature Control Capabilities:** Features temperature-controlled chambers for precise measurements of temperature coefficients (IEC 61215) and energy ratings (IEC 61853), with temperature ranges from 10°C to 85°C and uniformity of ±1°C.
- **Specialized Perovskite/Tandem Solutions:** Offers Mini LED Light Soakers for R&D and scaling up of Perovskite and Tandem PV modules, featuring adjustable spectral ranges and precise temperature control.
- **Uniformity Calibration Robot (UCR):** An automated system for rapid and accurate measurement of solar simulator non-uniformity, crucial for reducing measurement uncertainty.
- **Integrated IV Measurement Systems:** Provides comprehensive IV measurement capabilities, including MPP tracking, for seamless performance analysis.
- **PV Testing and Inspection Services:** Offers factory inspections in China and import testing services at ports in Rotterdam and Valencia, with measurement uncertainties as low as 2%.
- **IEC Compliance:** Equipment and services are aligned with key international standards including IEC 61215, IEC 61730, and IEC 61853 for certification and qualification.