Bluesolar Technology

What Bluesolar Technology does

Bluesolar Technology (legal entity BLUESOLAR FILTERS, S.L.) is a Seville, Spain-based cleantech company founded in 2019 that has developed and patented the first commercial hybrid photovoltaic / solar thermal (PV-ST) technology. Its core innovation is a smart optical light selective filter embedded in glass that splits incoming solar radiation: visible light passes through to conventional PV cells, while infrared and blue wavelengths (approximately 45-50% of total solar energy) are reflected as heat to a thermal receiver and stored in molten salts. The architecture supports up to 14 hours of thermal storage at a claimed 120 k€/MWh capex and 30+ year lifetime, with overall system efficiency above 90% and baseload generation capability exceeding 6,500 hours per year. A 50 MW case study demonstrates 55 €/MWh baseload PPA economics at 10% unlevered IRR. The technology is compatible with industrial process heat up to 1,000°C, thermal desalination, and high-temperature solid oxide electrolyzers for green hydrogen production.

The business model is anchored on three revenue streams: hardware sales of hybrid PV-thermal panels and complete plant systems (including retrofits of existing PV installations), engineering and project management services, and licensing of the proprietary optical filter technology. Go-to-market is sales-led and enterprise-focused, targeting utilities and energy companies (primary), industrial manufacturers (primary), and secondary use cases in hydrogen production, desalination, and data center baseload supply. Distribution is direct to enterprise customers, with a planned first manufacturing facility for dichroic filters at ISFOC in Puertollano (construction scheduled for 2026) funded in part by a €750,050 IDAE grant awarded April 2025.

The company remains in a pre-commercial, pilot-stage posture: it has 1-10 employees, secured multiple non-dilutive grants (CDTI, CTA, IDAE) rather than equity rounds, and inaugurated its first pilot plant — BlueSolar1 at ISFOC, Puertollano — only in November 2024. Core development is led by CEO Sebastián Caparrós (PhD Chemical Engineering, 14 patents, ex-Abengoa) with strategic backing from Capsun Technologies and Ghenova Ingeniería (a 350-person, €25M-turnover engineering firm whose CEO Francisco Cuervas also serves as BlueSolar's President). The R&D program is anchored by collaborations with CSIC, Plataforma Solar de Almería, Tekniker, University of Seville, CNH2, and Fraunhofer Institute.

Name

Bluesolar Technology

Legal name

BLUESOLAR FILTERS, S.L.

Website

https://bluesolartechnologies.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

1–10 employees

Short description

Bluesolar Technology (BLUESOLAR FILTERS, S.L.) is a Seville-based cleantech company developing patented hybrid photovoltaic-solar thermal panels with embedded optical filters, serving utilities, industrial manufacturers, hydrogen producers, and desalination operators seeking dispatchable renewable baseload power.

Ownership category

akta.pro rank

Product category

Hybrid Solar Power Systems

NAICS

Solar Electric Power Generation (221114), Electric Power Generation (22111)

SIC

Cogeneration Services & Small Power Producers (4991), Optical Instruments & Lenses (3827)

akta.pro primary industry

Solar Thermal & CSP Systems (Collectors, Receivers, Thermal Storage, CSP EPC) (EUAMABAL)

akta.pro secondary industries

Solar PV Module Manufacturing (Cells, Modules, Thin-Film) (EUAMABAD), Solar Design, Engineering & Performance Software (PV Modeling, Digital Twins, Monitoring) (EUAMABAH)

Keywords

• Hybrid solar panels
• Solar thermal storage
• Photovoltaic cogeneration
• Renewable energy systems
• Green hydrogen production

Headquarters

HQ city

Seville

HQ country

Spain

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Supply Chain, Infrastructure, Personnel, Marketing or Sales, Operations

Revenue model

1. Hybrid Solar Panel and System Sales: Sale of proprietary hybrid PV-thermal panels and complete plant systems. The technology enables both new greenfield developments and retrofitting of existing PV installations to create baseload generators.
2. Engineering, Design and Project Management: Engineering, design and project management services for PV-thermal power plants, positioning the company as a leader in hybrid solar plant development
3. Technology Licensing: Licensing of proprietary optical filter technology and hybrid PV-thermal solutions to other developers and operators

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Bluesolar Technology develops and manufactures hybrid photovoltaic/solar thermal (PV-ST) power systems based on a patented smart optical light selective filter embedded in glass. The filter splits incoming solar radiation so that visible light passes through to PV cells while infrared and blue wavelengths are reflected to thermal receivers, generating heat captured via molten salts. The company sells complete hybrid panel systems, low-cost thermal storage solutions, and engineering/project services to utilities, industrial manufacturers, hydrogen producers and desalination operators, enabling dispatchable baseload solar generation with up to 14 hours of thermal storage.

Product overview

BlueSolar Technology is a Spain-based company (founded 2019) offering the first commercial hybrid technology that integrates photovoltaic (PV) with solar thermal (ST) technology. The core product is the BlueSolar Hybrid PV/Thermal System, which uses patented selective optical light filters embedded in hybrid panels to split solar radiation - transmitting visible light to PV cells while reflecting IR and blue wavelengths (45-50% of energy) to thermal receivers for heat collection via molten salts. The product portfolio includes: (1) BlueSolar Hybrid Panels with integrated optical filters, (2) Thermal Energy Storage (up to 14 hours, 120 k€/MWh, 30+ year lifetime), (3) Industrial Process Heat Solutions (up to 1000°C), (4) Thermal Desalination Systems, and (5) Hydrogen Integration Solutions. The company also provides PV/ST Hybridization Development Services for new installations or retrofits. The system achieves approximately 50% more energy efficiency than standard PV panels and enables baseload generation of over 6,500 hours per year.

Differentiator

Problem solved

Functional benefit

Products and services

• BlueSolar Hybrid Panels PV/CSP hybrid panels using an integrated optical light selective filter embedded in the glass that transmits visible light to PV cells while reflecting IR and blue wavelengths (45-50% of energy) to a thermal receiver for heat generation via molten salts. Designed for utilities, energy companies and industrial customers seeking dispatchable solar power.
• Selective Optical Light Filter Patented smart optical filter embedded in hybrid PV panel glass that splits solar radiation, transmitting visible light to PV cells while acting as a specular mirror for IR and blue wavelengths to be collected as heat in thermal receivers. Sold to panel manufacturers and integrated into Bluesolar's hybrid panels.
• Thermal Energy Storage System Low-cost thermal battery storage with up to 14 hours of storage capacity, 120 k€/MWh capex, and more than 30 years of lifetime. Uses molten salts as thermal storage technology. Targets utilities and industrial customers requiring long-duration storage.
• Industrial Process Heat Solutions Hybrid cogeneration plants supplying electricity and high-temperature heat up to 1,000°C for industrial processes, reducing reliance on fossil fuels. Targeted at energy-intensive manufacturers seeking to decarbonize process heat.
• Thermal Desalination Systems

Quantifiable outcome

• Approximately 50% more total energy efficient than standard PV panels
• +5 more outcomes

Named customers2 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Nine partnerships are on record, tiered core.

• ISFOC (Institute of Concentration Photovoltaic Systems)coreStrategic or Co-development Partner · 13 November 2024Hosted the first BlueSolar1 pilot plant at ISFOC headquarters in Puertollano. ISFOC will also host the planned filter manufacturing facility.
• Capsun TechnologiescoreStrategic or Co-development Partner · 13 March 2024Co-promoted and co-patented the world-pioneering BlueSolar hybrid PV-thermal technology alongside Ghenova Ingeniería. Contributed to years of R&D in optical filter development.
• Ghenova IngenieríacoreStrategic or Co-development Partner · 13 March 2024Co-developed and co-patented the BlueSolar hybrid technology. Led engineering, design, and project management of PV-thermal power plants. CEO Francisco Cuervas also serves as President of BlueSolar. 350-person engineering company with 25M€ turnover.
• CSIC (Spanish National Research Council)coreStrategic or Co-development Partner · 13 March 2024Collaborated on years of R&D for hybrid PV-thermal technology, including the MOFHAR project with CSIC's Institute of Materials Science. Research partner contributing to optical filter development.
• Plataforma Solar de Almería (PSA)coreTechnology or Integration · 13 March 2024Spanish technology centre collaborating on solar energy R&D. Partnered with BlueSolar on development of hybrid PV-thermal systems.
• TeknikercoreTechnology or Integration · 13 March 2024Spanish technology centre participating in R&D collaboration for BlueSolar hybrid technology development.
• University of SevillecoreStrategic or Co-development Partner · 13 March 2024Academic research partner collaborating on hybrid PV-thermal technology development and innovation.
• Centro Nacional del Hidrógeno (CNH2 / National Hydrogen Centre)coreTechnology or Integration · 13 March 2024Spanish national research centre collaborating on high-temperature solid oxide electrolyzer integration with BlueSolar technology for green hydrogen production.
• Fraunhofer InstitutecoreTechnology or Integration · 13 March 2024Prestigious European research organisation collaborating on BlueSolar hybrid PV-thermal technology development.

Scale indicators12 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• GlassPoint Solar: Solar thermal steam producer focused on industrial heat applications. Shares BlueSolar's industrial heat customer focus and solar thermal heritage.
• SolarReserve: CSP developer using molten-salt thermal storage for utility-scale dispatchable generation. Direct overlap with BlueSolar on molten-salt storage medium and CSP-style architecture.
• BrightSource Energy: Concentrated solar power developer with thermal storage for utility-scale dispatchable generation. Comparable customer base and thermal-storage value proposition to BlueSolar.
• Heliogen: Concentrated solar energy company using AI-aligned heliostats to deliver high-temperature thermal energy and storage. Directly competes with BlueSolar in dispatchable solar with thermal storage and industrial heat applications.
• 247Solar: Develops hybrid solar PV with high-temperature thermal storage using a similar PV-plus-thermal-storage architecture to BlueSolar, targeting 24/7 dispatchable power at utility scale.
• Rondo Energy: Industrial heat battery company providing 24/7 zero-carbon process heat. Directly competes with BlueSolar for industrial process heat customers, though using electric resistive heating rather than solar input.

Emerging players

• Synhelion: Swiss solar fuels company using concentrated solar thermal to produce synthetic fuels. Overlaps with BlueSolar on green hydrogen/solar fuels narrative and high-temperature thermal storage concepts.
• Antora Energy: Thermal battery and storage company targeting industrial decarbonization. Competes with BlueSolar for industrial heat customers using heat-to-power conversion rather than solar.
• Brenmiller Energy: Thermal energy storage provider using crushed rock particles for industrial process heat. Adjacent thermal storage competitor in the industrial decarbonization space.

Broad incumbents

• Abengoa: Legacy Spanish engineering and renewables firm with deep CSP heritage. BlueSolar's CEO was trained at Abengoa, and BlueSolar's hybrid architecture is positioned as a simpler, more modular alternative to legacy CSP approaches.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/BlueSolarTechno
• LinkedInlinkedin.com/company/blue-solar-technologies
• Instagraminstagram.com/bluesolar

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Bluesolar Technology