About Workshop
Perovskite–silicon tandem PV promises higher efficiencies and lower energy costs than conventional silicon, but its real-world success depends on proven reliability, clear bankability, and system-level integration. This program explores how tandem devices behave under operating conditions, how they impact balance-of-system design and performance, and how technical risks translate into investor confidence—supporting their transition from lab breakthroughs to dependable, financeable solar assets.
Aim
To critically examine the reliability, bankability, and balance-of-system implications of perovskite–silicon tandem photovoltaic (PV) technologies, with a focus on translating high-efficiency cell performance into robust, low-risk, and financeable real-world solar projects.
What Participants Will Learn
- To provide an integrated view of perovskite–silicon tandem PV from cell/module design to utility-scale plant deployment.
- To map key reliability and qualification requirements for tandems and position them against existing IEC/UL standards and test regimes.
- To establish clear links between lab/field reliability data and bankability metrics such as yield, degradation, warranties, and LCOE.
- To highlight BOS and plant-integration implications of tandem technology, including inverters, layout, protection, monitoring, and safety codes.
- To build a common language between R&D, project development, and finance teams for evaluating tandem PV risk and opportunity.
- To equip participants with practical templates (test matrix, risk register, mini bankability model, BOS KPIs) that can be adapted to real projects.
Structure
📅 Day 1 – Reliability & Qualification (Perovskite–Silicon Tandems)
- Tandem stack basics: optical/electrical coupling, tunnel junctions, interlayers
- Failure modes: ion migration, interdiffusion, UV/thermal/moisture stress, PID/LeTID, seal/encapsulant durability
- Test regimes & pathways to standards: DH/TC/HF/UV, light-soak, outdoor exposure → IEC 61215/61730 alignment
- Metrology essentials: junction-resolved IV, EQE/spectral mismatch, degradation (%/yr) estimation
- Hands-on: Draft a reliability test matrix & risk register for a sample tandem BOM (stresses, pass/fail, sampling, data logging)
📅 Day 2 – Bankability, Yield & Finance
- Bankability pillars: certification, field data, warranties, O&M assumptions, insurer/lender diligence
- Energy assessment: spectra & AOI impacts, temp coeffs, soiling/bifacial effects, uncertainty stacking
- Financials: LCOE drivers (CAPEX/BOS, yield, degradation, availability), PPA/insurance considerations
- Reliability → revenue bridge: mapping test results to yield-loss & risk narratives
- Hands-on: Build a mini bankability model (spectral correction + degradation) → LCOE sensitivity & warranty scenarios (one-page memo)
📅 Day 3 – BOS & Plant Integration
- Inverters/MPPT: tandem IV shape, wider MPPT windows, mismatch risk; DC:AC sizing & clipping
- Layout/trackers: spectral & AOI behavior, albedo choices, thermal effects; wiring/protection (fuses, AFCI, rapid shutdown)
- Interconnect & standards: commissioning/acceptance tests, SCADA/performance analytics, safety codes
- O&M: IV-curve scanning, condition-based cleaning, fault taxonomy, warranty evidence
- Hands-on: Quick BOS calc—select inverter MPPT window & DC:AC ratio for a tandem string, estimate clipping/losses, and define monitoring KPIs (yield, PR, degradation)
Important Dates
Registration Ends
4:30 PM
Workshop Dates
2025-12-08
5:30 PM
5:30 PM
What You Will Gain
Outcomes
- Understand the architecture and failure modes of perovskite–silicon tandem stacks, and how these differ from conventional silicon PV.
- Design a reliability and qualification test matrix for tandem modules aligned with IEC 61215/61730 and related standards.
- Interpret junction-resolved IV/EQE data, estimate degradation rates (%/year), and link these to field performance expectations.
- Evaluate the bankability of tandem PV projects by connecting reliability evidence, yield assessments, and financial metrics (LCOE, PPA, warranties).
- Quantify key yield drivers for tandem plants, including spectral effects, temperature behavior, soiling, and DC:AC sizing/clipping.
- Specify BOS and plant-integration requirements (inverters/MPPT windows, layout/trackers, wiring, SCADA, safety codes) tailored to tandem technology.
- Develop practical tools such as a tandem reliability risk register, a mini bankability model, and BOS/monitoring KPIs that can be adapted to real projects.
Who Should Attend
- PV cell/module R&D engineers working on perovskite, silicon, or tandem architectures
- Reliability & test engineers in PV manufacturing, certification labs, or QA teams
- Project developers, IPPs, EPCs & asset managers involved in utility-scale solar projects
- Technical advisors, lenders, insurers & investors evaluating PV technology bankability
- Policy, standards & regulatory professionals focused on solar qualification and safety codes
- Faculty, PhD/PG students in renewable energy, materials, or power systems; final-year UG students are welcome if they have prior exposure to basic PV concepts (IV curves, efficiency, LCOE).