The panels we specify, and exactly what makes them bankable.

Our modules are sourced from globally significant, independently assessed manufacturers, and we are precise about what each credential means. Several of our supply partners are long-established, top-tier crystalline-silicon makers that PV-Tech historically classified as members of the Silicon Module Super League (SMSL), the analyst grouping of the world’s largest module manufacturers from 2015 to 2019. These include LONGi, JA Solar, JinkoSolar, Trina Solar, Canadian Solar and Hanwha Qcells. We also specify premium, high-efficiency brands that were never part of that grouping and we do not label them as such; Aiko (a BloombergNEF Tier 1 maker and pioneer of N-type ABC back-contact modules) and REC (a premium heterojunction manufacturer, owned by Reliance Industries, with a long record as a Kiwa PVEL Top Performer through 2024). The SMSL is a measure of scale and heritage, not a quality, safety or bankability certification; its own author was explicit that it was never a bankability measure. For current trust we therefore lead with live, independent frameworks: BloombergNEF Tier 1 for financeability, PV ModuleTech Bankability Ratings, and Kiwa PVEL and RETC scorecards for reliability. We name the specific scheme, grade and quarter for the exact module we propose, rather than relying on legacy badges.

For a financier or finance director, bankability is the confidence that a module maker is financially strong enough to honour 25 to 30 year warranties and that its panels are accepted in bank-financed projects. Lenders finance bankable, Tier 1 panels, so we specify them. The independent benchmark we cite is the BloombergNEF Tier 1 PV Module Maker List, a financeability indicator: a maker qualifies by supplying own-brand modules to at least six utility-scale projects (each over 10 MW under the current methodology), non-recourse financed by six different commercial banks, within roughly the prior two years. On the current Q1 2026 list this includes LONGi, JinkoSolar, Trina Solar, JA Solar, Canadian Solar and Aiko. We will confirm the exact quarter’s listing for the proposed module before contract. Two essential caveats: BNEF Tier 1 measures financing track record only, not module quality, efficiency or durability (reliability is assessed separately by Kiwa PVEL and RETC, and broader financial strength by PV ModuleTech AAA to B grades, where LONGi, Trina and JA Solar hold AAA); and JinkoSolar was removed from the BNEF Tier 1 list in Q2 2024 over a minor unresolved legal matter and subsequently reinstated, so we describe its current listing rather than an unbroken record. Where a brand is not a verifiable BNEF Tier 1 supplier (for example REC, a premium, Reliance-backed heterojunction maker), we position it on its genuine merits and do not claim Tier 1 status. Note also that the S&P Global Tier 1 Cleantech Company status held by Hanwha Qcells is a separate scheme from the BloombergNEF Tier 1 list and we keep the two distinct.

We specify modules from 10 independently assessed makers, so the right module is chosen for your roof rather than the one a salesperson is pushing. We name the specific scheme, grade and quarter for the exact module we propose, and re-verify it before contract.

We specify modules from ten manufacturers, and the corporate history, the ownership, the manufacturing footprint, the warranty terms and the honest caveats for each are written once, on that maker’s own page, rather than summarised into a card here. A maker that also supplies inverters or storage has one page covering all of it, because it has one balance sheet and one warranty operation. The full roster sits at the manufacturer directory, which filters to modules, and the conversion and storage sides of the same design have their own pages.

Two rules hold wherever a scheme lands. Silicon Module Super League is shown as the historical scale grouping it was, from 2015 to 2019, and never as a live badge. And a BloombergNEF Tier 1 line always names the quarter, is re-verified for the exact module before contract, and is never attached to an inverter or a battery, because the scheme rates PV modules and nothing else. Where a maker is not on that list we say so and position it on its genuine merits instead. What each of those credentials is, and what it is not, is set out in the bankable and Tier 1 explained guide.