We Sun

What We Sun does

We Sun SAS is a French photovoltaic installer headquartered in Seignosse, Landes, operating across the Nouvelle-Aquitaine region (Landes, Pays Basque, Béarn, Gers, and Gironde Sud). Founded in 2016 and incorporated as a Société par Actions Simplifiée, the company designs, installs, and maintains grid-connected solar PV systems, lithium battery storage, and EV charging infrastructure for residential homeowners, businesses, agricultural operations, and local governments. All work—from feasibility studies through commissioning—is performed by internal technicians with no subcontracting, supported by an integrated design office (bureau d'étude) and multiple sector certifications (RGE, Qualifelec, IRVE, OPQIBI, plus exclusive SolarEdge Specialist status in Nouvelle-Aquitaine and Coq Vert Community membership).

We Sun's technology platform is built around third-party OEM hardware rather than proprietary systems. Core offerings include SolarEdge power optimizer–based rooftop installations with panel-level monitoring, Enphase IQ8 micro-inverter alternatives for self-consumption optimization, integrated lithium battery storage, and EV charging stations from SolarEdge, Schneider Electric, and Wallbox. The company has accumulated 600+ installations since inception, with recent activity shifting toward larger collective self-consumption and public-sector projects (111.32 kWc Tosse school, 455-panel Peyrehorade project, 36 kWc MACS technical center) alongside a newly launched Repowering Service targeting the existing installed base.

The revenue model is predominantly one-time project sales with installation-ticket pricing ranging from approximately €6,000-€16,000 for typical residential 3-6 kWc systems up to six-figure sums for large commercial and public-sector projects. Recurring revenue is provided by maintenance contracts, SolarEdge-platform performance monitoring, and the new Repowering service. GTM is direct-to-customer via inside sales (phone/email) and field sales with a 100% dematerialized process, plus a €200 referral (Parrainage) program and city-specific landing pages targeting the five-region service area. Customer acquisition leverages educational content marketing (blog, Instagram, LinkedIn, Facebook) and the website's interactive simulator tool.

Name

We Sun

Legal name

WE SUN SAS

Website

https://wesun.fr

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1–10 employees

Short description

We Sun SAS is a French photovoltaic installer based in Seignosse, Landes, that designs, installs, and maintains solar PV, battery storage, and EV charging systems for residential, business, agricultural, and local-government customers across the Nouvelle-Aquitaine region of southwestern France.

Ownership category

akta.pro rank

Product category

Photovoltaic Installation Services

NAICS

Solar Electric Power Generation (221114)

SIC

Electrical Work (1731), Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB)

akta.pro secondary industries

Solar Mounting, Racking & Trackers (Fixed-Tilt, Single/Dual-Axis, Rooftop Mounts) (EUAMABAF), Solar Workforce, Training & Safety Services (Installer Training, Certification, EHS) (EUAMABAO), Solar Design, Engineering & Performance Software (PV Modeling, Digital Twins, Monitoring) (EUAMABAH)

Keywords

• Photovoltaic installation services
• Solar panel systems
• Battery storage solutions
• EV charging installation
• Solar energy consulting

Headquarters

HQ city

Seignosse

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Photovoltaic Installation Sales: Revenue generated from selling and installing photovoltaic systems for residential and commercial customers. The company handles complete project lifecycle including feasibility studies, technical design, equipment supply, installation, grid connection, and administrative procedures. Pricing varies by system capacity (3-100+ kWc) and equipment quality.
2. Smart Energy Management Systems: Sales of SolarEdge intelligent energy management systems, power optimizers, inverters, and supervision platforms that enhance photovoltaic installation performance and enable real-time monitoring.
3. Battery Storage Solutions: Installation of lithium battery storage systems that allow customers to store surplus solar energy for later use, increasing self-consumption rates to 65-70%.
4. EV Charging Infrastructure: Installation of electric vehicle charging stations (SolarEdge, Schneider Electric, Wallbox) that integrate with photovoltaic systems to enable solar-powered vehicle charging.
5. Maintenance Contracts: Ongoing maintenance services for installed photovoltaic systems, including cleaning, technical inspections, and performance monitoring via SolarEdge platform.
6. Administrative Services: The company handles all administrative procedures for customers including municipal declarations, Enedis grid connection requests, Consuel certification, EDF OA contracts, and government incentive applications.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

We Sun SAS designs, installs and maintains photovoltaic (solar panel) systems, lithium battery storage and electric vehicle charging solutions for residential homeowners, businesses and local governments in southwestern France. The company handles the complete project lifecycle—from feasibility study and technical design through equipment supply, installation, grid connection and ongoing maintenance—executed entirely by internal certified technicians without subcontracting. Complementary offerings include SolarEdge-based intelligent energy management and repowering services for aging installations.

Product overview

We Sun is a photovoltaic installation company offering an integrated ecosystem of solar energy solutions. The core offering consists of photovoltaic panel installations for self-consumption, available for residential, commercial, and agricultural clients. This is complemented by add-on modules including battery storage systems, EV charging stations, and intelligent energy management through the SolarEdge Home ecosystem. For professionals and communities, We Sun provides specialized solutions such as photovoltaic building integration, solar canopies, and large-scale solar power plants. The company also offers repowering services to optimize aging installations. All installations are handled entirely in-house without subcontracting, supported by an integrated engineering department and certified technicians.

Differentiator

Problem solved

Functional benefit

Products and services

• Photovoltaic Panel Installation (Self-Consumption) End-to-end solar photovoltaic panel installation service for residential and commercial properties, enabling customers to produce and consume their own electricity. Covers feasibility study, technical design, equipment supply, mounting, grid connection (Enedis), and commissioning, with optional resale of surplus via EDF OA contracts.
• Intelligent Energy Management (SolarEdge Home) Smart home energy management system built on the SolarEdge ecosystem that monitors production and consumption in real-time, controls appliances and heating based on solar production peaks, and enables remote optimization of self-consumption.
• Battery Storage Systems Lithium battery storage installations that retain surplus photovoltaic electricity produced during the day for evening or low-sunlight use, enabling self-consumption rates of 65-70%.
• EV Charging Stations Electric vehicle charging station installation using SolarEdge, Schneider Electric and Wallbox systems, allowing customers to charge EVs with self-produced solar energy.
• Photovoltaic Canopy (Ombrière) Solar carport (ombrière) structures for businesses that convert parking lots into shade-producing, on-site renewable energy generation zones.
• Photovoltaic Building Integration Rooftop photovoltaic installation on commercial and industrial buildings for self-consumption, covering feasibility, design, mounting, commissioning and grid connection.
• Repowering Service

Quantifiable outcome

• Energy bill reduction of 40-90% achievable with We Sun installations
• +4 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• SolarEdgecoreTechnology or IntegrationSolarEdge is a key technology partner providing power optimizers, inverters, and smart home energy management systems. We Sun is the only SolarEdge Specialist certified installer in Nouvelle-Aquitaine. The partnership includes advanced installer status, EV charging solutions, and smart energy management integration.
• Voltec SolarcoreTechnology or IntegrationFrench manufacturer of photovoltaic modules with low carbon footprint, offering best-in-market product and performance guarantees. We Sun partners with Voltec Solar to support French manufacturing and provide low-carbon photovoltaic solutions meeting new TVA 5.5% eligibility criteria.
• Chambre des Métiers et de l'Artisanat (CCI)minorGTM or Marketing PartnerRegional chamber of trades and crafts offering energy audits for businesses and artisans. We Sun handles subsequent photovoltaic installation work.
• EnediscoreTechnology or IntegrationElectricity distribution network operator managing grid connections for photovoltaic installations. We Sun handles all Enedis connection procedures for customers.

Scale indicators13 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Solareo: French regional solar installer providing residential photovoltaic installations and battery storage with similar end-to-end service approach. Directly comparable peer in the regional French PV installation market.
• Mon Kit Solaire: French solar installer offering turnkey photovoltaic systems for residential customers across multiple French regions. Comparable business model of end-to-end PV installation with administrative handling, similar to We Sun's offering.
• Soleil du Grand Sud: Regional French photovoltaic installer operating in southern France with similar residential and commercial PV offerings. Directly comparable business model as a localized installer without subcontracting and similar customer base in the same broader southwestern geography.
• InSun: French regional solar installer providing residential and commercial photovoltaic installations with battery storage. Directly competes with We Sun in the regional installer segment and offers similar integrated PV + storage solutions.

Emerging players

• Sunology: French solar company offering plug-and-play and installed photovoltaic solutions with focus on residential self-consumption. Emerging player with innovative delivery model that partially overlaps with We Sun's residential offering.
• Oscaro Power: Emerging French solar energy company focused on self-consumption photovoltaic solutions. Competes in similar residential self-consumption segment with differentiated go-to-market but overlapping customer base.

Broad incumbents

• Engie Home Services: Engie's residential energy services division offering solar PV installations alongside broader home energy services. National scale and capital backing position it as a broad incumbent competing with regional players like We Sun.
• EDF Solutions Solaires: EDF's residential solar installation arm leveraging utility-scale brand recognition and financing capability. Represents the broad incumbent threat in French residential solar, operating nationwide versus We Sun's regional focus.
• TotalEnergies Solar: TotalEnergies' residential solar offering distributed nationally in France with integrated financing options. Broad incumbent competing on marketing scale and one-stop energy offerings versus We Sun's regional specialization.

Regional players

• CAP Soleil: Regional French photovoltaic installer operating in southern France regions. Comparable regional installer footprint and residential/commercial PV installation services with overlapping customer segments.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/wesunofficial/?locale=fr_FR
• LinkedInlinkedin.com/company/wesun
• Instagraminstagram.com/we_sun

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 We Sun