SOG SOLAR
SOG SOLAR is an independent French photovoltaic engineering and consulting firm serving enterprises, local authorities, investors, and solar producers through its proprietary Gyrosun software suite and lifecycle services from feasibility through operations.
- Company typePrivate
- Founded2012
- HeadquartersMouilleron-le-captif, France
- Headcount1–10
- GTM typeB2B
- OfferingServices
What SOG SOLAR does
SOG SOLAR is a France-based independent engineering and consulting firm specializing in photovoltaic energy projects, founded in 2012 (originally as System Off Grid, renamed in October 2020) and headquartered in Mouilleron-le-Captif with regional offices opened in Montpellier and Dijon in August 2023. The firm serves enterprises, local authorities, investors, and solar producers across the full project lifecycle, with core service lines in multi-site solarization planning, feasibility studies, Maîtrise d'Oeuvre (project management), AMO (owner's representation), ground-mounted solar farm engineering, performance audits, due diligence, operational assistance, and professional training. Its independence from manufacturers, installers, and operators is a deliberate positioning that supports conflict-free advisory for sophisticated buyers such as Immo Mousquetaires, Nantes Métropole, La Roche-sur-Yon Agglomération, and CRE-tender-winning developers like Elexol and Energ'iv. International engagements span more than 20 countries in Africa, the Pacific, and Europe.
The firm's proprietary technology platform is the trademarked Gyrosun® suite, comprising Gyrosun Scan (satellite-based multi-site potential assessment), Gyrosun Design (energy and economic simulation validated on 400+ projects), Gyrosun Market (cost database accumulated since 2017), and Gyrosun Opex (asset supervision with the PROSPr automated diagnostic module, ADEME TASE PME award winner in 2023). The in-house Gyrolab R&D facility supports testing of bifacial, vertical, and agrivoltaic configurations, and the firm participates in the VERBIA consortium for vertical bifacial agrivoltaics. The firm joined the MANERGY group in September 2024 while retaining operational independence, co-founded the Ecole du Solaire (opening September 2025), and operates with a 20-person team that generated approximately €1.2M of revenue in FY2022 with ~30% year-over-year growth.
SOG SOLAR firmographics
Firmographics- Name
- SOG SOLAR
- Legal name
- SOG SOLAR
- Website
- https://sogsolar.com
- Company type
- Private
- Founded year
- 2012
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- SOG SOLAR is an independent French photovoltaic engineering and consulting firm serving enterprises, local authorities, investors, and solar producers through its proprietary Gyrosun software suite and lifecycle services from feasibility through operations.
- Ownership category
- akta.pro rank
SOG SOLAR industry classification
Industry- Product category
- Solar Engineering and Consulting
- NAICS
- Engineering Services (54133), Other Scientific and Technical Consulting Services (541690), Computer Systems Design and Related Services (54151)
- SIC
- Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700), Services-Computer Programming Services (7371)
- 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 Quality, Testing, Certification & Standards (Lab Testing, Inspections, Compliance) (EUAMABAN)
Keywords
Where SOG SOLAR is headquartered
LocationHeadquarters
- HQ city
- Mouilleron-le-captif
- HQ country
- France
- HQ region
- Europe
Offices3 records
Markets served
SOG SOLAR business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Engineering and Consulting Services: SOG SOLAR generates revenue through professional services including feasibility studies, project management/engineering (Maîtrise d'Oeuvre), Owner's Representative (AMO), performance audits, technical due diligence, asset monitoring, and solarization planning for multi-site property owners. Revenue is project-based and service-delivered, covering all phases of photovoltaic projects from initial planning through operational exploitation. Reported CA of €922k in 2021 with 20% growth, and €1.2M in 2022 with 30% growth.
- Software Licensing (Gyrosun Suite): The proprietary Gyrosun software suite (Scan, Design, Market, Opex) is used internally to deliver services and is also positioned as a standalone product available via an online platform. The platform links all project stages, automatically interfaces with external data resources (irradiation databases, satellite mapping, ENEDIS smart meter data). ADEME recognition as TASE PME winner indicates commercial software ambitions.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | 3-hour online training session: Concevoir et construire des bâtiments solarisables (PV Ready) |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels8 records
SOG SOLAR product offering
Product offeringCore offering
SOG SOLAR is an independent engineering and consulting firm providing solar photovoltaic advisory across the entire project lifecycle—from multi-site solarization planning, feasibility studies, and project engineering (Maîtrise d'Oeuvre) through construction oversight, operational monitoring, performance audits, and technical due diligence. The firm complements these professional services with the proprietary Gyrosun® software suite (Scan, Design, Market, Opex) for site assessment, techno-economic simulation, cost benchmarking, and asset performance monitoring, and delivers professional training programs for architects and construction professionals.
Product overview
SOG SOLAR is a solar engineering and consulting firm that operates as a platform-plus-services model. The core technology platform is the Gyrosun® software suite, comprising four integrated tools: Gyrosun Scan for satellite-based solar potential planning, Gyrosun Design for energy/economic simulation and optimization, Gyrosun Market for photovoltaic cost databases, and Gyrosun Opex for asset performance supervision. These tools are complemented by a comprehensive range of professional services covering the entire photovoltaic project lifecycle: solarization planning for multi-site portfolios, feasibility studies, project management (Maîtrise d'œuvre), construction supervision, operational assistance, performance audits, due diligence, and professional training programs. The company serves enterprises, municipalities, investors, and solar producers across France and internationally, and became part of the MANERGY group in 2024.
Differentiator
Problem solved
Functional benefit
Brands
- Gyrosun Suite: Software suite for photovoltaic project planning, sizing, cost evaluation, and performance monitoring including Gyrosun Scan, Gyrosun Design, Gyrosun Market, and Gyrosun Opex tools.
- Gyrolab
- Ecole du Solaire
Products and services
- Gyrosun Scan Satellite-based planning tool that identifies photovoltaic potential on building rooftops, parking canopies, and ground installations. Integrates solar irradiation databases and yield calculations to generate technical, energy, and economic feasibility indicators for rapid site assessment and prioritization across multi-site portfolios.
- Gyrosun Design Comprehensive energy and economic simulation platform for all photovoltaic project types including self-consumption, grid injection, hybrid systems, storage, and smart load management. Features hourly or 10-minute simulation, automated consumption profile retrieval from ENEDIS meters, financial forecasting, sensitivity analysis, and optimization algorithms.
- Gyrosun Market Photovoltaic cost database accumulated since 2017 containing detailed budget breakdowns by category, enabling reliable CAPEX/OPEX assumptions for preliminary project estimates and investment decision support.
- Gyrosun Opex Performance supervision platform for monitoring and analyzing energy and economic performance of photovoltaic assets. Displays production/consumption/storage data, calculates monthly/annual performance ratios, integrates with ENEDIS meters, and includes PROSPr automated diagnostic module for portfolio management.
- Solarization Planning Services Multi-site heritage solarization planning service using Gyrosun Scan to identify photovoltaic potential, rank sites by feasibility, present financing/valorization models, develop implementation strategies, and support operational launch for enterprises and municipalities.
- Feasibility Studies Independent technical, economic, and regulatory feasibility assessments for photovoltaic projects, providing decision support in complex and evolving regulatory environments.
- Project Management and Owner Support (Maîtrise d'œuvre et AMO) Quality, cost, and schedule control for photovoltaic project execution with construction supervision and owner representation (AMO) services, covering all phases from procurement through commissioning.
- Ground-Mounted Solar Farm Engineering Specialized engineering and consulting services for ground-mounted photovoltaic plant developers and operators covering development, construction (CRE tender application, Maîtrise d'Oeuvre), and operational phases for utility-scale solar farms.
- Operations Assistance Ongoing performance and maintenance monitoring using internally developed tools (including Gyrosun Opex) to support solar producers in tracking their renewable energy assets throughout the operational lifetime.
- Performance Audit and Optimization Diagnostic and corrective action services leveraging SOG SOLAR engineer experience and proprietary tools (including the PROSPr module) to maximize returns on photovoltaic investments and pre-diagnose causes of underperformance.
- Expertise and Due Diligence Independent technical expertise for transactions or disputes, providing impartial assessment in photovoltaic project evaluations and supporting investors with risk assessment and due diligence.
- Training Services Professional solar training programs including the 'Designing and Building PV-Ready Solarizable Buildings' course for architects, project owners, design firms, and construction companies, delivered monthly via video conference (3-hour sessions, €250 HT).
Quantifiable outcome
- Portfolio performance audit: 160 solar plants totaling 20 MWc audited using PROSPr module, quantifying losses, prioritizing sites, and pre-diagnosing causes across entire asset portfolios
- +5 more outcomes
Companies that use SOG SOLAR
Customer profileNamed customers33 records
Segments6 records
Ideal customer profiles6 records
SOG SOLAR technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration1 record
Feature7 records
SOG SOLAR partnerships and signals
Strategic signalPartnerships
21 partnerships are on record, tiered core, major and minor.
- Ecole du SolairecoreSOG SOLAR co-founded the Ecole du Solaire at CNAM La Roche-sur-Yon (85), which will welcome its first students in September 2025. The school trains qualified professionals in photovoltaic panel installation and solar project engineering — addressing a critical labor shortage in the rapidly growing sector. Founding partners include SOG SOLAR, VFE, SYDEV, Vendée Energie, Atlansun, BTP CFA Vendée, BTP CFA Pays de la Loire, and CNAM Pays de la Loire.
- SÉOLISmajorSÉOLIS is the solar power producer partner in the VERBIA consortium with SOG SOLAR and Impulsion Groupe. SÉOLIS finances and operates the 180 kWc vertical bifacial agricultural pilot PV installation at Bressuire, which SOG SOLAR designed and engineered. The installation has been in service for 6 months and will provide a full year of energy and technical performance data.
- Culture WattcoreCulture Watt is a joint venture created by three Vendée-based companies: Groupe Duret (major real estate player, 30+ years), VFE (electrical industrialist and PV installer/maintainer, 10+ years), and SOG SOLAR (engineering and consulting). Culture Watt offers turnkey financed rooftop and parking canopy solar installations for businesses in Vendée and neighboring departments. SOG SOLAR contributes engineering and consulting services, while VFE handles installation and Groupe Duret provides real estate access and financing.
- GEPA (Groupe des Economistes de Projet d'Architecture)coreSOG SOLAR and GEPA (the leading continuing education organization for architects and building professionals in France, training 1,000+ architects per year) partnered to deliver the 'Concevoir et Construire des Bâtiments Solarisables PV Ready' training program. GEPA partnership provides Qualiopi certification (enabling financing eligibility) and broad reach into the architect and construction professional community. Sessions began in March 2022, with 4 sessions per year at 250€/session.
- EnogridminorEnogrid organized the collective self-consumption webinar featuring SOG SOLAR and Occisolis. Also partnered with SOG SOLAR and Ascia for the La Rochelle-Port Atlantique collective self-consumption feasibility study covering ~20 industrial buildings.
- OccisolisminorOccisolis partnered with SOG SOLAR for joint webinar delivery on collective self-consumption topics (March 2022), organized by Enogrid. Represents a marketing and thought leadership collaboration.
- MANERGYcoreSOG SOLAR joined the MANERGY group in September 2024. MANERGY is a group specializing in engineering and consulting for energy transition. This acquisition/integration represents a strategic consolidation that strengthens SOG SOLAR's market position while maintaining its independence, brand, and operational model. The integration was announced publicly as a positive development for both organizations.
- ENEDIScoreSOG SOLAR entered into a partnership agreement with ENEDIS and La Roche-sur-Yon Agglomération (July 2022) to integrate ENEDIS's 'je simule mon raccordement' (grid connection simulation application) directly into the Gyrosun Scan platform. This enables automatic assessment of grid connection constraints and costs during solarization planning for the agglomeration's 165 sites, providing a critical input for site prioritization and strategy development.
- VERBIA ConsortiummajorSOG SOLAR is a member of the VERBIA (Vertical Bifacial Agricole) R&D consortium focused on agrivoltaic vertical bifacial photovoltaic technology. Consortium partners include SÉOLIS (solar producer) and Impulsion Groupe. The project addresses agrivoltaic land use optimization and atypical production profiles for grid integration. SOG SOLAR has installed a test platform at the Gyrolab and designed/engineering a 180 kWc pilot installation at Bressuire (financed and operated by SEOLIS).
- Africa Power Systems (Caterpillar distributor network)majorAfrica Power Systems, the Caterpillar distributor network in Africa, partnered with SOG SOLAR for detailed design, construction supervision, commissioning, and maintenance training on hybrid PV/diesel systems across multiple African countries (Gabon, Liberia, Niger) and projects including wildlife parks, service stations, and aviculture facilities.
- GAGEmajorGAGE (Société Gabonaise d'Automatisme et de Génie Electrique) partnered with SOG SOLAR for the design, procurement support, construction supervision, commissioning, and maintenance training on 12 hybrid solar power plants (30-40 kWc each) in rural Benin under the PROVES rural electrification program.
- Henri Fraise / Comad (Caterpillar Madagascar)majorHenri Fraise (Caterpillar distributor in Madagascar, operating as Comad) partnered with SOG SOLAR for the study, sizing, detailed design, construction supervision, and commissioning of an 80 kWc hybrid PV/battery/diesel system powering the village of Belobaka, Madagascar.
- MENASOLARminorMENASOLAR partnered with SOG SOLAR for feasibility studies and detailed design work on PV installations in Cape Verde (Caboplast, 100 kWc) and for feasibility studies covering 4 industrial sites in Senegal and Mali (1-4 MWc per site, self-consumption and PV/diesel coupling).
- Ascia IngénierieminorAscia Ingénierie partnered with SOG SOLAR and Enogrid for the La Rochelle-Port Atlantique collective self-consumption feasibility study, providing structural engineering expertise for the industrial zone solarization project.
- EXOCETHminorEXOCETH (heating network engineering specialist) partnered with SOG SOLAR in a joint engineering team for the Le Sourn local energy loop project, combining solar PV (SOG SOLAR scope) with biomass district heating (EXOCETH scope) and fiber optic network infrastructure.
- SMILE Smart GridsminorSMILE Smart Grids certified both the Le Sourn local energy loop project and the La Génétouze collective self-consumption project, enabling access to European, state, regional, and departmental subsidy programs.
- Schneider Electric NigeriaminorSchneider Electric Nigeria partnered with SOG SOLAR for the 120 kWc hybrid PV installation at the TOTAL Head Office in Lagos, Nigeria. SOG SOLAR provided engineering, design, construction supervision, commissioning, and maintenance training.
- MSF FranceminorMédecins Sans Frontières (MSF) France partnered with SOG SOLAR for the solarization of the Moissala dispensary in Chad — MSF's first solar-powered base. SOG SOLAR delivered feasibility, detailed design, commissioning, and maintenance training for the 30 kWc hybrid system.
- BREST'AIM / BERIM / Collectif d'ArchitectesmajorFor the Océanopolis Brest project, SOG SOLAR was part of a Maîtrise d'Oeuvre team selected by BREST'AIM, comprising BERIM (energy renovation lead, mandataire), SOG SOLAR (photovoltaic), and Collectif d'Architectes. The team addressed challenging technical constraints (salt environment, wind, humidity, animal welfare) and delivered an architecturally distinctive 'solar wave' installation.
- Vendée Energie / SYDEVcoreVendée Energie (SEM owned by SYDEV - Syndicat d'Energie de Vendée) and SOG SOLAR have a long-standing relationship. Vendée Energie invests in and operates solar installations developed with SOG SOLAR's engineering support. SYDEV co-finances and supports collective self-consumption projects in which SOG SOLAR provides engineering. Both are founding partners of the Ecole du Solaire.
- Impulsion GroupemajorImpulsion Groupe is the development partner in the VERBIA vertical bifacial agricultural consortium with SOG SOLAR and SÉOLIS. Impulsion developed the 180 kWc pilot installation at Bressuire, which SOG SOLAR designed and engineered and SÉOLIS finances and operates.
Scale indicators9 records
Recent moves10 records
Expansion highlights6 records
SOG SOLAR competitors and assessment
Company assessmentDirect peers
- BERIM: French engineering firm with a dedicated energy renovation and PV practice; partnered with SOG SOLAR on the Océanopolis Brest project (BERIM as mandataire). Directly comparable as a French building/infrastructure engineering firm offering feasibility, Maîtrise d'Oeuvre and PV advisory to public and private clients.
- EXOCETH: French engineering consultancy specialized in heating networks and renewable energy systems; partnered with SOG SOLAR on the Le Sourn local energy loop combining PV and biomass. Comparable as a French SME engineering firm delivering technical studies, design and supervision for decentralized renewable energy and energy loop projects.
- Ascia Ingénierie: French structural/generalist engineering consultancy that partnered with SOG SOLAR on the La Rochelle-Port Atlantique collective self-consumption study. Comparable as a multi-disciplinary engineering firm delivering feasibility and AMO services for industrial/public-sector PV and building projects in France.
- Enogrid: French energy consultancy specialized in collective self-consumption and renewable energy project development; partnered with SOG SOLAR on the La Rochelle-Port Atlantique study and joint webinars. Directly comparable as a French PV advisory firm serving local authorities and industrial clients on innovative autoconsumption models.
Broad incumbents
- Assystem: Major French international engineering and project management consultancy with strong energy transition practice. Comparable as a broad incumbent active in renewable energy engineering, due diligence and owner's engineering, with greater scale and geographic reach than SOG SOLAR.
- Bureau Veritas: Global TIC group with significant French operations and dedicated renewable energy / power & utilities practice. Comparable as a broad incumbent offering PV technical due diligence, commissioning, performance verification and asset inspections to investors, developers and operators.
- MANERGY: Parent company and French engineering/consulting group specializing in energy transition. Comparable as a multi-disciplinary energy engineering platform with overlapping decarbonization, building and infrastructure advisory; SOG SOLAR's PV expertise extends MANERGY's PV advisory capability and now operates within its group structure.
- SOCOTEC: French testing, inspection and certification (TIC) group with growing renewable energy advisory and asset management services. Comparable as a broader French TIC/engineering incumbent offering technical due diligence, performance audits and asset monitoring — overlapping with SOG SOLAR's audit and operations assistance offerings.
- Artelia: Large French engineering group with significant building, infrastructure, energy and environment practices. Comparable as a broader incumbent offering PV engineering, feasibility and owner's engineering as part of a wider portfolio, often competing for the same public-sector tenders as SOG SOLAR.
Emerging players
- Aurora Solar: US-based solar design and sales SaaS platform used by thousands of installers for remote site assessment, PV system design and proposal generation. Comparable as an emerging software-led player in solar engineering tooling — overlapping with SOG SOLAR's Gyrosun Scan and Gyrosun Design capabilities but without the French regulatory and Maîtrise d'Oeuvre service layer.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
SOG SOLAR social profiles
Digital presenceSOG SOLAR financial estimates
Financial estimateRevenue estimate
Valuation estimate
SOG SOLAR leadership team
Management profileNumber of profiles
Profiles4 records
SOG SOLAR funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SOG SOLAR M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SOG SOLAR
What does SOG SOLAR do?
SOG SOLAR is an independent engineering and consulting firm providing solar photovoltaic advisory across the entire project lifecycle—from multi-site solarization planning, feasibility studies, and project engineering (Maîtrise d'Oeuvre) through construction oversight, operational monitoring, performance audits, and technical due diligence. The firm complements these professional services with the proprietary Gyrosun® software suite (Scan, Design, Market, Opex) for site assessment, techno-economic simulation, cost benchmarking, and asset performance monitoring, and delivers professional training programs for architects and construction professionals.
Is SOG SOLAR a public or private company?
SOG SOLAR is a private company. It is classified as corporate owned and is currently operating.
When was SOG SOLAR founded?
SOG SOLAR was founded in 2012. It employs 1 to 10 people.
Where is SOG SOLAR based?
SOG SOLAR is headquartered in Mouilleron-le-captif, France, in the Europe region.
How does SOG SOLAR make money?
Two revenue lines are on record. Engineering and Consulting Services are the primary driver. The others are software Licensing (Gyrosun Suite).
Who are SOG SOLAR's main competitors?
Direct peers on record are BERIM, EXOCETH, Ascia Ingénierie and Enogrid. Broad incumbents are Assystem, Bureau Veritas, MANERGY, SOCOTEC and Artelia. Aurora Solar is listed as an emerging player.
Does SOG SOLAR have an API?
No public API is recorded for SOG SOLAR.
What industry is SOG SOLAR in?
SOG SOLAR's product category is Solar Engineering and Consulting. Its primary akta.pro industry code is EUAMABAH, Solar Design, Engineering & Performance Software (PV Modeling, Digital Twins, Monitoring), with a secondary code of EUACAGAI, Performance Optimization & Analytics (Monitoring, Forecasting, Aerial Thermography, IV Curves). Its NAICS code is 54133 and its SIC code is 8711.