Thin-film solar cell market seen hitting $39.5B by 2035

The global thin-film solar cell market is projected to nearly double to $39.5 billion by 2035, driven by policy support, efficiency gains and growing demand for flexible, lightweight solar panels. CIGS and perovskite-silicon tandem technologies are emerging as key growth areas as manufacturers scale production in the U.S., Asia and Europe.

Why it matters: - Thin-film solar is gaining ground in rooftop, utility-scale and building-integrated projects where lightweight panels and flexible substrates offer advantages over conventional crystalline silicon. - The market’s growth could reshape manufacturing priorities, especially as policy incentives and domestic production commitments accelerate in the U.S., Europe and Asia. - The segment also matters because next-generation designs, including perovskite-silicon tandems, could raise efficiency and expand where solar can be installed.

What happened: - The global thin-film solar cell market was valued at an estimated USD 19.2 billion in 2025. - The market is projected to rise to USD 20.6 billion in 2026 and reach USD 39.5 billion by 2035. - That forecast implies a 7.5% compound annual growth rate through 2035. - CIGS technology is projected to grow at a 9.3% CAGR through 2035. - Asia-Pacific holds about 45% of the market. - North America is the fastest-growing region at 9.1% CAGR. - Europe accounts for roughly 28% of global revenue.

The details: - Thin-film solar cells use one or more thin layers of photoactive material on glass, plastic or metal substrates. - Key technologies include cadmium telluride (CdTe), copper indium gallium selenide (CIGS), amorphous silicon and perovskite-based designs. - The technology is used in utility-scale systems, building-integrated photovoltaics, commercial rooftops, off-grid electrification and vehicle and portable power applications. - The U.S. Inflation Reduction Act extended manufacturing tax credits through 2032 and unlocked more than USD 8 billion in domestic thin-film production capacity commitments. - The European Union’s revised Renewable Energy Directive targets 42.5% renewable electricity by 2030. - The International Energy Agency expects global renewable capacity to rise by 4,600 GW between 2025 and 2030, with solar PV making up about 80% of that growth. - CdTe holds roughly 52% of market revenue. - Commercial CdTe modules are shipping at 18.8% to 19.7% efficiency in 2026. - CIGS panels have exceeded 23.6% laboratory efficiency. - Perovskite-silicon tandem designs have surpassed 33% laboratory efficiency and are entering early commercial production. - Utility-scale solar farms are the largest application segment at about USD 9.2 billion in 2025. - Commercial and industrial applications are valued at USD 5.2 billion. - Residential installations are growing at 6.8% CAGR. - Building-integrated photovoltaic installations are growing at 11.2% CAGR. - Grid-connected installations account for roughly 82% of the market. - Off-grid applications are growing at 10.8% CAGR. - First Solar leads the market with about 28% to 32% share. - Oxford PV has started commercial production and shipment of perovskite-silicon tandem cells with module efficiencies between 24% and 27%. - Ascent Solar Technologies and CisLunar Industries signed a teaming agreement in November 2025 to integrate flexible thin-film photovoltaic technology with advanced power conversion systems for space applications. - Japan announced a USD 1.5 billion investment initiative in 2026 to develop ultra-thin, flexible perovskite solar cells.

Between the lines: - The market’s growth is being pulled by policy, but also pushed by practical use cases where thin-film panels fit better than silicon, especially on rooftops and in high-temperature environments. - CIGS is re-emerging as a growth story because flexibility matters in commercial rooftops with weight limits. - Perovskite-silicon tandems appear to be the most important long-term technology race, but they are still in the early commercial phase. - The market still faces a performance gap versus mainstream monocrystalline silicon, which often exceeds 22% in production. - Cadmium handling rules, critical mineral supply risks and Chinese crystalline silicon overcapacity remain pressure points for manufacturers.

What's next: - More commercial scaling of perovskite-silicon tandem products is expected between 2028 and 2030. - Domestic manufacturing expansion is likely to continue in the U.S. as reshoring incentives and tax credits remain in place. - India, China and other Asia-Pacific markets should keep driving volume growth through manufacturing and deployment targets. - Recycling, off-grid electrification and vehicle-integrated solar are likely to become more important as manufacturers look for new demand pools.

The bottom line: - Thin-film solar is moving from a niche technology to a broader growth market, with policy support, flexible applications and next-generation materials driving the outlook toward 2035.