Spain Bi-facial Solar Market Overview, 2031

Market Insights on Spain Bi-facial Solar Market

• Spain's bifacial solar market has cemented its position as a European powerhouse, with the country closing 2025 at more than 26 GW of cumulative installed photovoltaic capacity according to the Spanish Photovoltaic Union (UNEF). The year proved momentous as Spain consolidated a new renewable energy growth record, installing 8,852.7 MW of new capacity, of which solar photovoltaic projects accounted for 7,896.3 MW representing 88% of all new renewable capacity added during the year.
• According to the research report, "Spain Bi-facial Solar Market Overview, 2031," published by Bonafide Research, the Spain Bi-facial Solar market is expected to reach a market size of USD 1.60 Billion by 2031. Solar energy now contributes approximately one-fifth of Spain's electricity generation, positioning it among the leading sources in the power mix and significantly reducing dependence on more costly and carbon-emitting technologies. The self-consumption segment reached 9.3 GW of cumulative installed capacity in 2025, with 1,139 MW added during the year. However, UNEF data reveals a 3.7% slowdown compared to 2024, with 36,330 new households installing self-consumption systems totaling 229 MW a 17% deceleration attributed to the phase-out of tax deductions for energy-efficient home renovations and lower compensation for surplus electricity exported to the grid.
• The industrial segment demonstrated resilience with 679 MW installed, driven by larger medium-voltage systems aimed at reducing electricity costs, while off-grid installations reached 55 MW reflecting growing uptake of hybrid solar-plus-storage solutions in rural areas. Spain's National Integrated Energy and Climate Plan targets 19 GW of self-consumption capacity, requiring average annual deployments of approximately 2 GW a goal that demands regulatory stability, administrative simplification, and more effective integration of distributed energy storage.

Competitive Landscape of Spain Bi-facial Solar Market

• JinkoSolar successfully delivered its high-efficiency N-type TOPCon Tiger Neo modules for the newly inaugurated 513 MWp Segovia solar cluster, developed by ib vogt across approximately 666 hectares in the Castile and León region, comprising four utility-scale solar parks and representing one of the country's largest solar developments.
• The Baobab Solar project within the Segovia cluster generates approximately 190 GWh of clean electricity annually sufficient to power more than 55,000 homes utilizing advanced bifacial solar panel technology coupled with single-axis tracking systems.
• TotalEnergies inaugurated a 263 MW solar plant in Guillena, the company's largest in Europe, featuring five solar projects with 400,000 bifacial solar panels equipped with trackers, generating 515 GWh annually equivalent to the power needs of approximately 150,000 households while offsetting 245,000 tonnes of carbon dioxide emissions per year. The company's senior vice-president for renewables, Olivier Jouny, acknowledged Spanish authorities' support for the project contributing to Spain's ambition of 80% renewables in its energy mix by 2030.
• At the technology frontier, LONGi Solar and Holaluz announced a strategic partnership at Intersolar Europe to introduce the next-generation S10 module with Heterojunction Back Contact technology to the Spanish market, featuring certified cell efficiency of 27.3% and module efficiency up to 25%, available in bifacial full black and transparent formats. The module offers up to 510 W output and a power density of 250 W/m², enabling up to 9% more capacity on rooftops compared to conventional technologies.
• Plenitude commenced construction of the 90 MW La Flota photovoltaic plant in Fortuna, Murcia, utilizing tracking technology and expected to produce more than 185 GWh annually. Audax Renovables built a 21.88 MWp facility in Navalmoral de la Mata equipped with 37,368 bifacial photovoltaic modules, expected to generate 42 GWh per year.
• LONGi secured preferred supplier status for Holaluz's residential and distributed generation portfolio across Spain, with the S10 positioned as the flagship product within Holaluz's self-consumption offering.

Spain Market Dynamics

Driver: Superior Solar Irradiance and Bifacial Yield Advantage Spain's exceptional solar resource creates ideal conditions for bifacial technology deployment. The country receives among the highest solar irradiance levels in Europe, with the Segovia cluster's bifacial panels achieving superior efficiency and bifacial yield according to JinkoSolar's Frank Niendorf. Bifacial modules paired with single-axis trackers now achieve capacity factors above 25%, widening the economic envelope for large ground-mounted plants. TotalEnergies' Guillena facility with 400,000 bifacial panels demonstrates how Spain's high irradiance maximizes rear-side energy capture, delivering 515 GWh annually. The cost advantage reflects widespread adoption of bifacial modules and single-axis tracking that lifts yields by up to 20%. Photovoltaics generated more than 61 TWh in 2025, up from 18% the previous year, confirming solar's central role in Spain's electricity system.

Challenge: Regulatory Uncertainty and Market Deceleration Spain's bifacial market faces significant headwinds from policy instability and declining economic incentives. UNEF data shows self-consumption installations declined 3.7% in 2025, with residential segment dropping 17% year-on-year following the phase-out of tax deductions for energy-efficient home renovations. The non-validation of Royal Decree-Law 16/2025, which would have extended fiscal deductions, threatens to accelerate this deceleration. Falling compensation prices for surplus electricity exported to the grid under deregulated market contracts are reducing the attractiveness of oversized systems designed primarily for grid injection. UNEF warns that achieving the 19 GW self-consumption target requires regulatory stability, administrative simplification, and more effective integration of distributed energy storage.



Trend: Agrivoltaic and Dual-Use Bifacial Deployment Spain is emerging as a leader in agrivoltaic applications where bifacial technology's dual-use capability addresses land-use conflicts. The Segovia solar cluster spanning 666 hectares demonstrates how large-scale bifacial deployment can coexist with agricultural activities in the Castile and León region. The vertical bifacial configuration maintains significant land for agricultural use while generating power during morning and evening hours, complementing the midday peak of conventional tilted systems. The market is also seeing growing interest in floating photovoltaic applications, with bifacial panels increasingly specified for water-based installations.

Segment Analysis

Spain Bi-facial Solar Market by Type
• Dual-Glass Bifacial Solar dominates Spain's utility-scale segment due to superior durability in the country's high-irradiance environment. The Segovia solar cluster deploys JinkoSolar's N-type TOPCon modules with dual-glass construction, delivering 513 MWp across 666 hectares. TotalEnergies' Guillena facility features 400,000 bifacial panels with trackers, generating 515 GWh annually. Dual-glass construction provides enhanced protection against mechanical stress from temperature fluctuations and UV exposure, while its 30-year lifespan aligns with utility investment horizons. Astronergy's Astro N5 bifacial glass-glass modules with N-type TOPCon cells, deployed in a 341 kWp commercial installation in Antequera, demonstrate the technology's versatility across segments.
• Glass-Backsheet Bifacial Solar serves Spain's commercial and residential rooftop segments where weight constraints are paramount. LONGi's S10 module with HBC technology, available in bifacial full black and transparent formats, utilizes glass-backsheet construction to reduce overall system weight while delivering certified cell efficiency of 27.3%. The configuration's 250 W/m² power density enables up to 9% more capacity on rooftops compared to conventional technologies. Trinasolar's integrated solution for the 22 MW Valcasado solar project in Spain utilized 33,600 bifacial modules, demonstrating glass-backsheet viability for medium-scale installations.

Spain Bi-facial Solar Market by Cell Technology
• TOPCon technology has emerged as Spain's dominant cell architecture for utility-scale projects. JinkoSolar's Tiger Neo N-type TOPCon modules were deployed across all four sites of the Segovia solar cluster, selected for superior efficiency, bifacial yield, and long-term reliability. Astronergy's Astro N5 bifacial glass-glass modules with N-type TOPCon cells serve commercial applications, delivering 585 Wp output. The technology's tunnel oxide passivated contact structure minimizes electron recombination, delivering higher energy yields across the project lifecycle. TOPCon's superior temperature coefficient proves particularly valuable in Spain's high-temperature conditions, maintaining performance during peak summer irradiance.
• PERC technology maintains presence in Spain's cost-sensitive segments, particularly for smaller commercial installations where capital constraints outweigh long-term efficiency gains. The technology's mature manufacturing base ensures competitive pricing, though lower bifaciality rates (typically 70-75%) limit adoption for premium utility applications. PERC modules continue serving replacement markets and budget-conscious projects where immediate cost considerations dominate decision-making.
• HJT technology occupies a premium niche in Spain's solar landscape, with LONGi introducing the S10 module featuring Heterojunction Back Contact architecture combining HJT passivation with back contact light capture. The module achieves certified cell efficiency of 27.3% and features a temperature coefficient of -0.24%/°C, resistance to snow load of 6000 Pa, wind resistance of 3600 Pa, and a 30-year performance warranty. The technology's superior thermal performance makes it ideal for Spain's high-irradiation environment. LONGi's partnership with Holaluz positions the S10 as the flagship product within Holaluz's self-consumption offering across Spain.
• Others encompass emerging technologies including IBC cells and perovskite-silicon tandems, which remain in research and development phases. LONGi's HBC architecture combines HJT passivation with back contact technology, representing the frontier of commercial innovation. These technologies represent future growth potential as manufacturing scales and costs decrease.

Spain Bi-facial Solar Market by End-User
• Utility-Scale dominates Spain's bifacial solar market, driven by large projects like the 513 MWp Segovia solar cluster and TotalEnergies' 263 MW Guillena facility. The segment benefits from Spain's exceptional solar irradiance and land availability in regions like Castile and León, Extremadura, and Andalusia. UNEF confirms Spain closed 2025 with more than 26 GW of installed photovoltaic capacity, with utility-scale projects accounting for the majority. The cost advantage reflects widespread adoption of bifacial modules and single-axis tracking that lifts yields by up to 20%.
• Commercial & Industrial represents a rapidly growing segment, with industrial self-consumption totaling 679 MW in 2025, marking a slight increase compared to 2024. Growth is driven by larger medium-voltage systems aimed at reducing electricity costs and partially covering electrified thermal demand. The commercial segment installed 176 MW in 2025. The Astro N5 341 kWp installation for an animal feed producer in Antequera demonstrates C&I adoption, utilizing bifacial glass-glass modules. Project viability increasingly depends on tariff structures with a higher variable component and streamlined permitting for medium-sized installations.
• Residential adoption faces challenges, with 36,330 new households installing self-consumption in 2025 totaling 229 MW a 17% decline from 2024. The deceleration reflects the phase-out of tax deductions for energy-efficient home renovations and lower compensation for surplus electricity. However, LONGi's partnership with Holaluz positions advanced HBC bifacial technology for the residential segment, offering up to 9% more capacity on rooftops. UNEF warns that achieving the 19 GW self-consumption target requires regulatory stability and administrative simplification.


Considered in this report
• Historic Year: 2020
• Base year: 2025
• Estimated year: 2026
• Forecast year: 2031

Aspects covered in this report
• Bi-facial Solar Market with its value and forecast along with its segments
• Various drivers and challenges
• On-going trends and developments
• Top profiled companies
• Strategic recommendation

By Type
• Dual-Glass Bifacial Solar
• Glass-Backsheet Bifacial Solar

By Cell Technology
• PERC
• TOPCon
• HJT
• Others

By End-User
• Utility-Scale
• Commercial & Industrial
• Residential