Wattway

What Wattway does

Wattway is a French company that develops and commercializes driveable photovoltaic road surfacing, integrating solar cells into slabs that can withstand vehicular or pedestrian traffic while generating electricity. The technology was created as a brand within Colas SA, the road construction arm of Bouygues, and was co-developed with the CEA-INES research institute; Wattway operates today with a team of approximately 32 employees and is headquartered in the Paris region (Magny-les-Hameaux).

The company sells a two-product portfolio. Wattway PLUS is a turnkey photovoltaic infrastructure offering sized between 100 and 500 kWp for self-consumption at customer sites such as logistics yards, ports, and parking areas. Wattway PACK is a lighter, autonomous roadside power product (launched in 2019) designed for non-grid-connected applications such as signage, lighting, and EV charging points. Modules are IEC-certified, and the underlying slab architecture is the result of a five-year R&D collaboration with CEA-INES.

Wattway goes to market through a hybrid of direct sales to public-sector and industrial buyers and a network of channel partners including BAM Royal Group (Netherlands), TOA Road Corporation (Japan), Leonhard Weiss and Herion (Germany), Nielsen Concept (Italy), and Miage (Switzerland). Active deployments are reported across France, the Netherlands, Germany, Switzerland, Italy, Japan, and the United States, with around 30 documented installations to date. Customers include Aix-Marseille-Provence Metropolis, HAROPA PORT, Bonneuil-sur-Marne, Bobigny, the Port of La Baule-Le Pouliguen, Canal de l'Ourcq, and Société de la Tour Eiffel. In 2026, the business was transferred to its management team, transitioning Wattway from an internal Colas venture to an independently operated entity.

Name

Wattway

Legal name

COLAS

Website

https://wattwaybycolas.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

Wattway develops and commercializes driveable photovoltaic road surfacing for self-consumption and autonomous power, serving municipalities, ports, and infrastructure operators across Europe, Japan, and the United States.

Ownership category

akta.pro rank

Product category

Solar Road Infrastructure / Photovoltaic Road Surfacing

NAICS

Solar Electric Power Generation (221114), Highway, Street, and Bridge Construction (23731), Power and Communication Line and Related Structures Construction (237130)

SIC

Asphalt Paving & Roofing Materials (2950), Electric Lighting & Wiring Equipment (3640)

akta.pro primary industry

Distributed Generation (DG) Solar & Small Wind (EUAMAJAD)

akta.pro secondary industries

Solar Roofing & Roof-Mounted PV Systems (IMADAFAO), Residential Behind-the-Meter Generation (EUACALAB), Street Lighting & Area Lighting Electrical Infrastructure (IMAFAHAJ)

Keywords

• Photovoltaic road surfacing
• Driveable solar panels
• Infrastructure solar power
• Renewable energy surfacing
• Transport infrastructure solar

Headquarters

HQ city

Magny-les-hameaux

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Wattway PLUS – Turnkey Photovoltaic Infrastructure Sales: Sale and installation of driveable photovoltaic power plants on transport infrastructure (car parks, cycle paths, forecourts, pontoons). Solutions are sold as integrated systems including modules, mounting hardware, and installation. Revenue is project-based, one-time at installation, with long project cycles typical of public infrastructure procurement. Driveable photovoltaic plants typically range from 100 to 500 kWp in capacity.
2. Wattway PACK – Autonomous Power Outlet Systems: Sale of self-sufficient electrical power systems for roadside equipment. Powers devices such as electric bike charging stations, pedestrian crossing lights, connected benches, and security cameras without requiring grid connection. Revenue is project-based per installation, sold to municipalities, port operators, and private companies.
3. Project Simulation and Consultation Services: The company provides a free online project simulator for initial sizing and feasibility assessment. Sales teams (regional contacts for Northern France, Southern France, and International) engage with customers for detailed project scoping and custom proposals.

Pricing tiers

Go-to-market motion3 records

Distribution channels8 records

Marketing channels6 records

Core offering

Wattway designs, manufactures, and installs driveable photovoltaic slabs applied as a thin overlay on existing road surfaces, parking areas, cycle paths, docks, and other transport infrastructure, enabling local renewable energy generation without additional land use or excavation. The company sells two product lines: Wattway PLUS (turnkey photovoltaic power plants for self-consumption on transport infrastructure, typically 100–500 kWp) and Wattway PACK (self-sufficient electrical power outlets for autonomous roadside equipment such as bike charging stations, pedestrian crossings, and connected benches where grid connection is impractical). Solutions are sold as project-based turnkey installations to public authorities, port and airport operators, and private industries.

Product overview

Wattway offers two distinct photovoltaic road surface products: Wattway PLUS (for photovoltaic self-consumption on transport infrastructure) and Wattway PACK (for autonomous power generation at remote equipment locations). Both products consist of thin photovoltaic modules applied directly to existing road surfaces without requiring heavy civil engineering works, building permits, or environmental impact assessments. The technology transforms developed surfaces like parking lots, cycle paths, docks, and pedestrian areas into renewable energy generating sites.

Differentiator

Problem solved

Functional benefit

Brands

• Wattway PLUS: A turnkey photovoltaic solution installed on transport infrastructure for generating renewable energy locally for self-consumption. Used on car parks, pavements, cycle paths, forecourts, and pontoons.
• Wattway PACK

Products and services

• Wattway PLUS Turnkey photovoltaic solution installed on transport infrastructure (parking lots, pavements, cycle paths, forecourts, and pontoons) enabling organizations to generate renewable energy locally for self-consumption. Typical installations range from 100 to 500 kWp. Sold as project-based turnkey systems to government authorities, port operators, airport operators, and private industries.
• Wattway PACK Self-sufficient electrical power outlet solution for autonomous energizing of equipment installed near traffic routes where grid connection is non-existent, remote, or too costly. Powers bike charging stations, pedestrian crossing lights, connected benches, and security cameras directly from the road surface. Applicable in both urban and rural environments.

Quantifiable outcome

• Frioul port installation: 48 modules × 237 Wp = ~12 kWp capacity; ~80 m²; 12,000 kWh/year generated and consumed locally
• +4 more outcomes

Named customers10 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

Feature6 records

Partnerships

Ten partnerships are on record, tiered minor and core.

• Herion (Switzerland)minorChannel Partner/ Reseller/ Distributor · 29 June 2022Herion installed Switzerland's first Wattway solar street, representing the initial deployment of Wattway technology in the Swiss market.
• 7-Eleven JapanminorStrategic or Co-development Partner · 6 December 20177-Eleven Japan identified Wattway as one of the technologies of the future intended to be deployed for its stores in Japan, as announced in December 2017. Represents potential large-scale commercial deployment in Japan's retail sector.
• HAROPA PORTcoreStrategic or Co-development PartnerHAROPA PORT (Ports of Paris, Rouen, and Le Havre) partnered with Wattway to deploy a driveable solar power plant at the Port of Bonneuil-sur-Marne. This self-consumption installation produces 20 MWh per year to power the port's buildings, demonstrating Wattway's capability for large-scale port energy autonomy.
• BAM Royal Group / BAM Infra (Netherlands)coreChannel Partner/ Reseller/ DistributorBAM Royal Group, through its BAM Infra division, is Wattway's local partner in the Netherlands. The partnership has delivered two 1,000 m² photovoltaic bike paths in the Netherlands, representing one of Wattway's largest international deployments.
• TOA Road Corporation (Japan)coreChannel Partner/ Reseller/ DistributorTOA Road Corporation is Wattway's primary partner in Japan, having delivered multiple installations across Tokyo (Odaiba, Minato-ku), Osaka, Enzan, and Oyama. TOA Road was featured at the TOA Road head office installation and has participated in webinars and exhibitions with Colas Japan. Other Japanese partners include Tenma (Osaka) and TOA Tone Boring Factory (Enzan).
• Nielsen Concept (France)minorChannel Partner/ Reseller/ DistributorNielsen Concept partnered with Wattway to power the Mobilypod connected bike shelter – a smart, 100% eco-friendly bike shelter with integrated e-bike charging. The partnership won an urban innovation award from Le Monde Cities. Installations in Nantes and other French cities.
• Leonhard Weiss (Germany)minorChannel Partner/ Reseller/ DistributorLeonhard Weiss is building solar streets with Wattway technology in Germany, as reported by Solarserver. Represents Wattway's entry into the German market.
• The Ray (Georgia, USA)minorChannel Partner/ Reseller/ DistributorThe Ray is a sustainability initiative in Georgia, USA, associated with the first Wattway installation in the United States (announced December 2016). Represents Wattway's US market entry and a reference project for American deployment.
• CEA (French Alternative Energies and Atomic Energy Commission)coreStrategic or Co-development PartnerThe CEA, specifically CEA-INES (National Solar Energy Institute), was the original co-development partner for Wattway technology alongside Colas. The partnership conducted 5 years of joint development to create the patented photovoltaic road surfacing technology. Wattway continues to receive ongoing support from the CEA as it accelerates deployment across multiple countries.
• Miage (Rome, Italy)minorChannel Partner/ Reseller/ DistributorMiage installed a 12-panel Wattway Pack in Rome, Italy, fully powering 5 electric bike charging docks. Represents Wattway's presence in the Italian market.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Regional players

• Bouygues Construction: Bouygues Construction is a major European infrastructure and building contractor active in transport, energy, and public works. It is comparable to Wattway as a European infrastructure contractor that could serve as a delivery partner for Wattway installations or compete for similar public-sector solar infrastructure mandates.

Broad incumbents

• Holcim: Holcim is a global building materials and aggregates company with growing activity in low-carbon construction solutions and roof-integrated PV systems. It is comparable to Wattway as a building materials incumbent expanding into solar-integrated surfaces and serving public infrastructure customers.
• ENGIE: ENGIE is a global energy utility and distributed renewable energy developer with significant presence in solar generation, urban energy services, and local energy autonomy projects. It is comparable to Wattway as a developer of distributed solar generation and as a potential acquirer or partner in European municipal/port solar projects.
• Enel Green Power: Enel Green Power is a global renewable energy developer and IPP with significant distributed solar generation activity across Europe and the Americas. It is comparable to Wattway as a buyer/operator of distributed solar projects serving public and private off-takers.
• Vinci Energies: Vinci Energies is a major infrastructure and energy services group active in power generation, distribution, and renewable energy project delivery across Europe. It is comparable to Wattway as a buyer/operator of distributed renewable energy projects and as a turnkey infrastructure delivery partner for public authorities.
• Saint-Gobain: Saint-Gobain is a global building materials manufacturer with broad activity in construction products and facades. It is comparable to Wattway as a large incumbent supplying materials to public infrastructure projects and exploring solar-integrated building envelopes.
• Sika AG: Sika is a global specialty chemicals and construction materials company supplying products for concrete, waterproofing, sealing, bonding, and surfacing. It is comparable to Wattway as a supplier of high-performance surfacing and bonding materials used in transport infrastructure projects.
• Colas SA: Colas is Wattway's parent company and a global leader in transport infrastructure construction and maintenance. As the strategic owner and primary operational backbone, Colas is the most directly comparable broad incumbent operating in road surfacing, paving materials, and infrastructure construction.

Direct peers

• Solar Roadways: Solar Roadways is the most direct peer to Wattway, developing photovoltaic road surface panels for traffic-bearing applications. Both companies target the same use case of generating electricity from road/pavement surfaces and compete for public-sector infrastructure innovation budgets.

Emerging players

• SunPower (Maxeon): SunPower/Maxeon designs and supplies high-efficiency distributed solar PV modules for residential and commercial rooftop applications. It is comparable to Wattway as a distributed-generation PV module maker targeting small-to-mid scale self-consumption installations, though focused on rooftops rather than road surfaces.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/wattwaybycolas

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Wattway