LuciSun

Name

LuciSun

Legal name

LuciSun

Website

https://lucisun.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Solar Engineering Software and Advisory

NAICS

Custom Computer Programming Services (541511), Computer Systems Design and Related Services (54151), Architectural, Engineering, and Related Services (5413), Other Scientific and Technical Consulting Services (54169), Computer Systems Design Services (541512)

SIC

Services-Computer Programming Services (7371), Services-Computer Programming, Data Processing, Etc. (7370), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Solar Design, Engineering & Performance Software (PV Modeling, Digital Twins, Monitoring) (EUAMABAH)

akta.pro secondary industries

Performance Optimization & Analytics (Monitoring, Forecasting, Aerial Thermography, IV Curves) (EUACAGAI), Owner’s Engineering, Grid Interconnection & System Studies (PVsyst/Performance Modeling, Protection Studies) (EUACAGAG), Solar Grid Integration & Interconnection Services (Studies, Protection, SCADA, Forecasting) (EUAMABAI)

Keywords

• Photovoltaic engineering services
• 3D PV simulation software
• Solar resource assessment
• Energy yield assessment
• PV performance analytics

Headquarters

HQ city

Villers-la-Ville

HQ country

Belgium

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Technical Advisory Services: Engineering expertise and advisory supporting photovoltaic projects from system design to performance analysis. Includes PV system design, technical due diligence, solar resource assessment, energy yield assessment, and PV performance assessment. This is the primary professional services revenue stream.
2. Training & Courses: Professional, practice-oriented training programmes for organisations and individuals active in the photovoltaic sector. Covers solar resource assessment, PV energy yield modelling, PVsyst, PV technologies, system design, performance assessment, and grant writing. Delivered online or on-site in English, French, or Spanish.
3. Digital Factory – Custom Software Development: Builds custom digital tools for solar energy professionals on a project basis. Products include operational dashboards, internal platforms, engineering calculators, automated reporting, data & analytics, and white-label SaaS. Offered as private, branded solutions deployed in cloud, on-premise, or isolated hosting environments.
4. LuSim Software Licensing: LuSim 3D PV simulation framework made available for consulting, research, and feasibility studies. Primarily used internally to support advisory services but positioned as a standalone software product for advanced PV energy yield assessments and bankability evaluations.
5. LuData API Services: API-first platform providing access to validated solar irradiance and meteorological datasets, modelling services, and operational protocols. Supports flexible consumption models through a dedicated API manager with documentation, usage monitoring, and billing based on consumption.
6. Project Proposal Writing / Grant Writing: Hands-on technical and scientific support for grant writing in national, European, and international funding programmes. Supports organisations and consortia seeking active contribution to design and writing of research and innovation project proposals.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

LuciSun provides science-driven services and software solutions for photovoltaic engineering, combining advanced modelling, performance data analysis, and field experience. Its core offerings include three proprietary software products—LuSim (3D PV simulation), Consolectiv (prosumer energy flow simulation), and LuData (energy data and API platform)—alongside technical advisory, custom digital tool development (Digital Factory), professional training, and research proposal writing services for PV project developers, investors, operators, and technical advisors worldwide.

Product overview

LuciSun offers a platform of three integrated software solutions: LuSim (3D PV simulation framework for complex shading and bifacial systems), Consolectiv (prosumer energy flow simulation), and LuData (energy data services platform with API access). These are complemented by four service lines: Technical Advisory (PV design, due diligence, resource and yield assessment), Digital Factory (custom digital tool development), Training & Courses (professional PV engineering education), and Project Proposal Writing (research funding support). The ecosystem allows products to be used independently or combined depending on project needs.

Differentiator

Problem solved

Functional benefit

Brands

• LuSim: 3D photovoltaic simulation framework for advanced PV energy yield assessments, design studies, uncertainty analysis, and bankability-oriented evaluations. Supports complex shading analysis, bifacial PV modelling, agrivoltaics, vertical PV, carports, floating PV, multiparameter optimisation, and exceedance probability analysis.
• Consolectiv
• LuData

Products and services

• LuSim 3D photovoltaic simulation framework for advanced PV energy yield assessments, design studies, uncertainty analysis, and bankability evaluations. Supports complex shading analysis, bifacial PV modelling, agrivoltaics, vertical PV, carports, floating PV, multiparameter optimisation, and exceedance probability analysis. Used by PV developers, technical advisors, and financial institutions requiring bankability-grade studies.
• Consolectiv Simulation engine dedicated to prosumer energy flows, self-consumption, self-sufficiency, and collective self-consumption. Analyses how PV generation interacts with consumption at household, small commercial building, and energy community levels, with behind-the-meter battery storage. Designed for installers, advisors, municipalities, and organisations embedding prosumer modelling into their own products.
• LuData Platform for accessing, publishing, and consuming energy data and analytical models through a unified interface. Provides API-first access to validated solar irradiance and meteorological datasets, modelling services, and operational protocols. Supports historical time series, typical meteorological years, custom exceedance datasets, and high-precision terrain and horizon data. Used by organisations integrating LuciSun data services into their own workflows and digital tools.
• Technical Advisory Services Engineering expertise and technical advisory supporting photovoltaic projects from system design to performance analysis. Includes PV System Design, Technical Due Diligence, Solar Resource Assessment, Energy Yield Assessment, and PV Performance Assessment. Serves PV project developers, investors, operators, and technical advisors requiring independent engineering validation.
• Digital Factory Custom digital tools development service for solar energy professionals. Builds tailored digital products including operational dashboards, internal platforms, engineering calculators, automated reporting, data and analytics, and white-label SaaS on a project basis. Provides private and secure deployments with cloud, on-premise, or isolated hosting options.
• Training & Courses Professional, practice-oriented training programmes for photovoltaic engineers, technical advisers, developers, and researchers. Covers solar resource assessment, PV energy yield modelling, PVsyst, photovoltaic technologies, system design, performance assessment, and funding proposal preparation, with modules on bifacial PV, agrivoltaics, building-integrated PV, and floating PV. Delivered online or on-site in English, French, or Spanish.
• Project Proposal Writing Hands-on technical and scientific support for grant writing in national, European, and international funding programmes. Includes proposal structuring, objective formulation, research question definition, work plan structuring, and direct contribution to proposal writing. Targets academic, industrial, and mixed consortia preparing proposals for European, national, or international programmes.

Quantifiable outcome

• LuSim 3D validated against operating bifacial PV plants in industrial settings (RepsoLusim project)
• +2 more outcomes

Named customers21 records

Segments3 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature5 records

Partnerships

Nine partnerships are on record, tiered core and flagship.

• IMECcoreStrategic or Co-development PartnerLuciSun collaborates with IMEC (Belgium-based research institute in nanoelectronics and digital technologies) on photovoltaic modelling and simulation research. IMEC is listed as a university/research partner on LuciSun's homepage and is part of the collaborative research network supporting LuciSun's R&D activities.
• KU LeuvencoreStrategic or Co-development PartnerLuciSun partners with KU Leuven (Katholieke Universiteit Leuven) in collaborative research projects including doctoral supervision and joint research activities in photovoltaic engineering, modelling, and performance analysis. Listed as a research centre/university partner on LuciSun's homepage.
• TU DelftcoreStrategic or Co-development PartnerLuciSun collaborates with TU Delft (Delft University of Technology) in photovoltaic research projects. TU Delft is listed as a university/research partner on LuciSun's homepage and is involved in collaborative R&D activities.
• EURAC ResearchcoreStrategic or Co-development PartnerEURAC Research (Italy-based research institute) collaborates with LuciSun on photovoltaic research, particularly in the context of European R&D projects. Listed as a university/research partner on LuciSun's homepage.
• CEA INEScoreStrategic or Co-development PartnerCEA INES (France's National Institute for Solar Energy) collaborates with LuciSun on photovoltaic research projects. Listed as a research centre/university partner on LuciSun's homepage under the French version.
• European Space Agency (ESA)flagshipStrategic or Co-development PartnerESA funds and partners with LuciSun on the SATRISE project (2025-2028), focused on satellite-based 3D spectrally resolved irradiance for advanced solar resource assessment. This is a major European research programme involving advanced satellite observation and PV modelling.
• IEA PVPS (International Energy Agency Photovoltaic Power Systems Programme)coreStrategic or Co-development PartnerLuciSun actively contributes to IEA PVPS Tasks 13, 15, and 16 (2019-2028), focusing on international best practices for PV performance assessment, BIPV digitalisation, and solar resource assessment. This is a long-term, structured international collaboration.
• COST Action PEARL PVcoreStrategic or Co-development PartnerCOST Action PEARL PV (European research network, 2017-2022) focused on analysis and benchmarking of large fleets of distributed photovoltaic systems. LuciSun chaired Working Group 5 on fleet-level performance assessment and data-driven benchmarking. The project informed LuciSun's tools, advisory practices, and training activities.
• TecnaliacoreStrategic or Co-development PartnerTecnalia (Spanish research and technology organisation) collaborates with LuciSun on photovoltaic research projects. Listed as a university/research partner on LuciSun's homepage.

Scale indicators4 records

Recent moves6 records

Expansion highlights7 records

Direct peers

• Solargis: Provides solar resource assessment, meteorological data, and PV performance analytics on a global scale. Solargis is directly comparable to LuciSun's LuData offering and overlaps with LuSim's yield assessment applications, both serving bankability and project development workflows.
• PVsyst: Industry-standard PV simulation software widely used for energy yield assessment and bankability studies. PVsyst is the most direct competitor to LuSim's core simulation use case, though LuciSun positions LuSim for advanced 3D scenarios where PVsyst is less capable.
• 3E: Belgian solar advisory and data analytics firm offering solar resource assessment, yield studies, and asset performance services. 3E is among the closest direct competitors to LuciSun's technical advisory and LuData offerings, sharing the Belgian origin and European customer base.

Emerging players

• Reuniwatt: Provides solar irradiance forecasting and nowcasting services using satellite and ground data. Reuniwatt is an emerging player in the solar resource and forecasting niche that partly overlaps with LuData's data services and works with similar utility and developer customers.
• Sunlit Sea: Specialises in floating PV performance assessment and monitoring. Sunlit Sea is an emerging player in a specific PV sub-vertical (floating PV) that LuciSun addresses through LuSim, providing a comparable niche to benchmark growth strategies.
• Rayference: Belgian-based specialist in solar irradiance modelling and satellite-derived solar data. Rayference overlaps with LuciSun's LuData and solar resource assessment capabilities, particularly for projects requiring high-precision irradiance data.

Broad incumbents

• UL Solutions (formerly DEKRA): Global testing, inspection, and certification organisation with renewable energy advisory services including PV performance assessment and due diligence. UL is a broad incumbent competing with LuciSun's technical advisory and performance assessment services.
• DNV (Energy Systems): Global technical advisor and certification body for renewable energy projects, including PV due diligence, yield assessment, and performance benchmarking. DNV competes with LuciSun's technical advisory services and is a broad incumbent in the bankability workflow.

Others

• Fraunhofer ISE: Germany's leading applied solar research institute, actively publishing PV modelling methods and contributing to IEA PVPS Tasks. Fraunhofer ISE is an adjacent, primarily research-driven peer that overlaps with LuciSun's research methodology and consortium activities.
• KISTERS: Provider of energy data management and renewable energy analytics platforms. KISTERS is an adjacent data and analytics peer relevant to the LuData platform and is occasionally named alongside LuciSun in solar resource assessment procurements.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/LuciSun_Solar
• LinkedInlinkedin.com/company/lucisun

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 LuciSun