The EU region's first structured warranty and performance insurance for Solar PV manufacturers, OEMs, integrators and distributors — built for the risk you're carrying on your own balance sheet today.
Most PV OEMs back their own warranty from their own balance sheet. That self-funded promise carries real exposure: acceptance varies by territory, so a warranty written at home may not satisfy a lender or customer abroad; the liability accumulates as your installed base grows, concentrating risk on your own books; and it disappears entirely the moment the OEM behind it becomes insolvent. An insured, reinsurance-backed warranty removes all three.
A warranty written at home may not satisfy a lender, EPC contractor, or end customer in another market. Territorial enforceability gaps mean that the same warranty document can be legally valid in the issuing country but commercially unacceptable — or practically unenforceable — in the country where the modules are installed. Cross-border projects and export-focused OEMs are directly exposed to this gap every time they sign a new supply agreement.
Every panel shipped adds to the outstanding warranty liability sitting on the OEM's own balance sheet. As the installed base grows, the contingent exposure grows with it — concentrated entirely on the OEM's own books, unhedged, and often un-provisioned at a level that reflects real-world claim frequency. The faster an OEM grows, the larger and more opaque this accumulation becomes. Lenders and rating agencies increasingly scrutinise this exposure in OEM credit assessments.
The self-funded warranty disappears entirely the moment the OEM behind it becomes insolvent. For a project owner or lender holding a 25-year warranty from a manufacturer that enters administration in year 8, the warranty is extinguished with no residual value and no recovery path. Solar PV manufacturing is a competitive, margin-compressed sector — OEM insolvency events, particularly among second and third-tier manufacturers, are not exceptional.
The product is structured across three core pillars — each addressing a specific dimension of OEM warranty risk that a self-funded balance-sheet warranty cannot resolve. The programme can be placed as individual pillars or combined into a single integrated policy.
Indemnifies repair and replacement costs that exceed the maintenance budget over the warranty period. Where panels fail within the manufacturer warranty period and the OEM's own warranty is unenforceable — due to cross-border legal barriers, territorial acceptance gaps, or disputed liability — the policy pays the project directly. The insurer then exercises subrogation rights against the OEM. The warranty obligation is transformed from a counterparty promise into an insured indemnity.
Protects against capacity fade that outpaces the warranted degradation curve, measured against the certified yield basis. If measured annual output degrades faster than the OEM's warranted degradation schedule — as verified against the module's certified performance baseline — the policy triggers and indemnifies the shortfall. Cover is benchmarked against the module datasheet degradation curve, not a probabilistic P90 estimate, making claims straightforward to trigger and settle.
Keeps warranty obligations alive even if the manufacturer behind them fails, with no co-payment obligation on the project owner. If the panel manufacturer enters insolvency during the warranty period, the policy responds directly — paying for repair or replacement costs that would have been covered under the now-void OEM warranty. Structured for direct benefit of the project SPV or lender. The warranty survives the OEM.
Solar PV Warranty Insurance is a three-pillar programme addressing the principal warranty risks for PV manufacturers, OEMs, integrators and distributors — covering territorial enforceability, performance degradation, and OEM insolvency across the full product and project life cycle.
Indemnifies repair and replacement costs that exceed the maintenance budget over the warranty period. Where OEM warranty enforcement is impractical — due to cross-border territorial barriers, disputed liability, or acceptance gaps with a lender or offtaker — the insurer pays directly. Subrogation rights against the OEM are retained by the insurer. The warranty becomes a bankable instrument, not a counterparty promise.
Core · Pillar 01Protects against capacity fade that outpaces the warranted degradation curve, measured against the certified yield basis. If measured output degrades faster than the OEM's warranted degradation schedule — verified against the module datasheet baseline — the policy triggers and indemnifies the shortfall. No causation dispute required. Designed for lenders and project owners requiring a demonstrable, insured production floor.
Core · Pillar 02Keeps warranty obligations alive even if the manufacturer behind them fails, with no co-payment obligation on the project owner. If the panel manufacturer enters insolvency during the warranty period, all its warranty commitments are extinguished. This pillar responds directly — paying for repair or replacement that would have been covered under the now-void OEM warranty. The warranty survives the OEM, providing institutional-grade protection to lenders and project owners.
Core · Pillar 03Solar PV Warranty Insurance is designed for every participant in the PV supply chain who bears warranty or performance risk on their own balance sheet — from manufacturers shipping panels internationally to lenders requiring bankable collateral protection.
For PV manufacturers, every panel shipped creates a warranty liability that sits on the balance sheet, unhedged, accumulating as the installed base grows. Solar PV Warranty Insurance transfers that accumulating exposure to the reinsurance market — converting a self-funded promise into an insured, institutionally-backed warranty that lenders, EPC contractors, and customers in any territory can rely on.
System integrators who bundle modules from multiple OEMs into a single project delivery carry a complex chain of warranty obligations — from manufacturers with varying track records across different territories. Solar PV Warranty Insurance provides a single insured warranty wrapper across the integrated system, replacing multi-party OEM warranty chains with one institutional counterparty.
Project owners and developers who have accepted OEM warranty commitments as part of a PPA or EPC contract carry the risk that those warranties prove unenforceable when needed — due to territorial barriers, OEM insolvency, or disputed liability. Solar PV Warranty Insurance backstops those commitments with AA/A+ reinsurance capacity, making the warranty bankable for lender due diligence and reliable for project economics.
Commercial banks, development finance institutions, and export credit agencies require that the warranty commitments underpinning a solar project are enforceable, transferable, and OEM-insolvency-proof. Solar PV Warranty Insurance meets all three conditions — providing an insured, reinsurance-backed warranty instrument that functions as genuine collateral protection rather than a counterparty promise dependent on the OEM's continuing solvency.
The following cases are drawn from publicly reported industry incidents and market studies. They illustrate the types of risk that PV Warranties and Guarantees is designed to address. These are market examples, not Renewables Re client cases.
Between 2010 and 2016, large numbers of utility-scale solar farms across Germany and Central Europe experienced accelerated module degradation through Potential-Induced Degradation (PID) — a failure mode where high voltage differentials between cells and the module frame cause leakage currents that degrade cell efficiency. Affected farms reported annual output losses of 2–5%, compared to warranted rates of 0.3–0.5%. Over a 20-year project life, this compounded into revenue shortfalls of 20–40% against modelled P90 output. The scale of the phenomenon was systemic: it affected GW-scale installed capacity across multiple manufacturers and project developers simultaneously.
Early solar insurance products did not specifically exclude PID, leading to production guarantee claims by developers who had coverage. AA-rated institutional reinsurers and Swiss Re, as key reinsurers in this market, worked with brokers to structure revised production guarantee policies that explicitly defined degradation benchmarks and triggers based on IEC 61427 test standards. Post-2015 solar production guarantees increasingly required drone thermal inspection at inception to verify absence of existing PID before coverage commenced — a standard that Solar PV Production Guarantee incorporates at underwriting. For assets already affected, negotiated portfolio warranty settlements between developers and module suppliers were partially backstopped by production insurance in several documented cases.
The PID wave demonstrated that solar yield shortfall can be structural, systemic, and unrecoverable from manufacturers — particularly where Chinese suppliers are involved and warranty enforcement requires cross-border litigation. Projects that had structured production guarantee coverage maintained debt service through the shortfall period; those without coverage faced covenant breaches. The industry responded by developing IEC 61215/IEC 61727 testing requirements and a new class of solar production insurance. Solar PV Production Guarantee addresses this risk directly through degradation acceleration cover that does not require warranty enforcement against the module supplier.
Several utility-scale solar farms built under Australia's Large-Scale Renewable Energy Target (LRET) failed to achieve modelled P90 production from 2016 to 2018. One documented facility (20 MW, NSW) achieved approximately 85% of P90 projection over a 24-month period — a shortfall of approximately 3,200 MWh per year. Causes included: lower irradiance than modelled in back-to-back below-average years; inverter efficiency shortfalls not captured in commissioning testing; and soiling from agricultural dust at rates higher than modelled. The revenue gap threatened debt service on a leveraged structure with a 1.15× DSCR covenant.
Australian insurers, responding to a wave of yield shortfall cases post-2016, began developing production guarantee products aligned to LRET REC revenue. The facility in question had a limited EPC performance warranty but no structured production guarantee. The lender (a major Australian bank) subsequently required production insurance as a loan condition for all new solar financings from 2018. Post-2018, solar project finance in Australia increasingly required a minimum 5-year production guarantee as a condition precedent to drawdown — effectively making yield insurance a standard component of solar project bankability in the market.
The Australian experience showed that lenders, not developers, are often the first to demand structured production guarantees once the market has experienced a wave of underperformance events. The CEE solar market is at an earlier stage of maturity — the Czech and Slovak build-out under national renewable energy programmes is creating the same loan book concentration that Australian lenders faced in 2016. Solar PV Production Guarantee is designed for this moment: to be the product that enables the first generation of CEE solar lenders to finance confidently, before a wave of underperformance claims forces the lesson at cost.
Under the UK Renewable Heat Incentive (RHI), solar thermal systems were required to meet design-specified production targets to qualify for subsidy payments. Widespread underperformance was documented by the UK government: a 2015 audit found that 40–60% of accredited systems produced below their certified design output, with many achieving as little as half their warranted yield. Causes included: installer design errors, incorrect orientation and tilt angle, inadequate thermal coupling, and poor commissioning. The financial impact on each site was typically £2,000–£10,000/year in lost RHI revenue — material for small commercial operators.
The UK RHI underperformance episode drove development of performance bond products and yield warranty insurance in the UK commercial renewable heat market. Several specialist insurers, including Lloyd's syndicates, introduced production guarantee wraps specifically designed for RHI-eligible systems, providing revenue replacement where the system failed to achieve certified output. The UK Energy Saving Trust developed certification standards (MCS) that became conditions for these guarantees — mirroring the role that drone inspection plays in Solar PV Production Guarantee's underwriting model. Claims experience shaped modern solar PV production policy terms, including the requirement for third-party commissioning verification before coverage attaches.
The UK RHI experience established a pattern that recurs in every maturing renewable energy market: a first wave of installations, an underperformance discovery period, and then a structured insurance response. The lesson for CEE solar market participants is clear — underperformance is not a low-probability tail risk, it is a high-frequency operational reality that requires structural insurance rather than reliance on contractor warranties. Solar production guarantee coverage is not a nice-to-have; in a financed project, it is the mechanism that protects all stakeholders when the EYA proves optimistic.
Indicative policy parameters for Solar PV Warranty Insurance. All terms are subject to underwriting and risk assessment. Contact us for a tailored quotation across the three coverage pillars.
| Parameter | Detail |
|---|---|
| Eligible insured | PV OEMs and manufacturers; system integrators; project owners and developers; lenders requiring collateral warranty protection |
| Module eligibility | Monocrystalline and polycrystalline silicon; thin-film (CdTe, CIGS) subject to underwriting review; bifacial modules; tracker-mounted systems |
| Policy term | 1 year (renewable) to 20 years (aligned to manufacturer warranty and project finance tenor) |
| Product Warranty Cover trigger | Failure or defect within the OEM warranty period where the manufacturer warranty is unenforceable, disputed, or the OEM is insolvent. Indemnity: repair/replacement cost net of maintenance budget |
| Performance Guarantee trigger | Measured output degradation exceeding the warranted degradation curve from the module datasheet, verified against certified yield baseline. Assessed annually |
| OEM Insolvency Cover trigger | Entry of the module manufacturer into insolvency, administration, or equivalent proceedings during the warranty period. Automatic response — no proof of loss required beyond insolvency filing |
| Deductible | Annual aggregate deductible: risk-based, driven by OEM financial standing, module technology, and historical claims data |
| Maximum sum insured | Subject to underwriting; portfolio aggregation available with reinsurer approval |
| Pre-inception requirements (Stage 02–03) | Warranty wording; product specs & certifications; module OEM datasheet; company financials; historical claims overview; installation drawings; inverter & monitoring description; degradation test reports; warranty claims verification procedure incl. PoM; bankability report |
| Geographic scope | EU/EEA primary; broader international subject to reinsurer approval. ČNB-licensed EU-regulated broker placement |
| Reinsurance | 100% ceded to AA/A+ rated institutional reinsurers; Renewables Re (Hankook Insurance & Reinsurance Brokers s.r.o.) as ČNB-licensed placing broker |
| Path to bind | 6 stages: Deal Qualification → NDA & Project Agreement → Technical Due Diligence → Policy Terms & Factory Audit → Binding Offer & Closing → Policy Period & Renewal |
Send us your warranty wording, module specs, and installed base overview. We will assess cover across all three pillars — Product Warranty, Performance Guarantee, and OEM Insolvency Cover — and return an indicative premium within 10 working days.
Solar PV Warranties & Guarantees · 2-page PDF overview