What Perovskite Needs Right Now
The most urgent requirement is rigorous, transparent, and fit-for-purpose testing campaigns that expose vulnerabilities, quantify uncertainty, and generate actionable evidence for informed decision-making. This is precisely why TÜV SÜD introduced the Thresher Test in 2011. The Thresher Test was never intended to replace baseline certification. Instead, it was conceived as an extended, multi-stress accelerated aging protocol designed to distinguish genuinely robust products from those likely to fail prematurely in the field. Its role was to provide confidence where conventional qualification reached its limits. Perovskite photovoltaics now requires their own Thresher Test tailored to its unique chemistry sensitivities. We are therefore developing perovskite-specific accelerated test protocols that include:
- Extended stress cycling (e.g. TC400, DH2000, HF200,..) to drive failure mechanisms beyond we know about silicon-based technology.
- Sequential and combined stress profiles that reflect realistic insolation, seasonal, and weather-driven operating conditions, rather than isolated single-stress exposure.
- In-situ measurements to capture dynamic, reversible, and irreversible degradation processes as they occur – not only at discrete test endpoints.
- Round-robin validation across laboratories to quantify measurement repeatability and reproducibility – two foundational pillars of technical trust that Perovskite technology must convincingly earn.
What Stakeholders Will Gain
- For manufacturers that have already obtained certification, these advanced testing campaigns provide a data-driven roadmap to further improve material formulations, interface engineering, encapsulation strategies, and manufacturing consistency.
- For investors and insurers, they translate technical uncertainty into quantified risk, enabling credible financial modelling, project underwriting, and insurance structuring based on evidence rather than optimistic efficiency claims.
- For project operators and grid managers, they deliver insight into real-world degradation behavior, supporting predictive maintenance and operational planning. Resilience is the top priority of increasingly digital, distributed energy grids. Unpredictable power output is not merely an inconvenience, it is a systemic liability.
- For the broader energy ecosystem, transparent and reproducible test data remains the only credible foundation upon which long-term trust can be built.
Our Commitment
- TÜV SÜD is fully committed to supporting the industry on its path toward Perovskite commercial viability.
- Our responsibility goes beyond certification. Our contribution is testing truth - data that evolves standards, guides investors and earns operator trust in the field.
- Certification confirms that a product meets a baseline. The Thresher Test reveals how it will survive.
- Perovskite photovoltaics requires both.
