Updated October 2026/Solar Installation Websites

Top 10 Solar & Renewables web developers in Paris

Looking for solar & renewables web developers in Paris? Below are 10 agencies worth shortlisting, ordered by how much solar & renewables work they can actually show. Agency rates in Paris typically run €600-€1,500/day, and a business website usually costs €5,000 – €20,000 on the local market. Most solar & renewables sites here are built on WordPress with custom ROI calculator and Next.js for enterprise solar companies; the guide below covers what to ask before you hire.

How this list works. Agencies are ordered by the solar & renewables evidence in their public profiles: published specialisms, platforms and named sector work, so the Paris order changes by industry. Tecklogist ranks first. This list is published by Tecklogist; no other agency pays for placement.

The ranking

10 agencies · Solar & Renewables · Paris

01

Best overall · Solar & Renewables

Tecklogist

#1 Ranked 2026

Ranked #1 for solar & renewables web projects in Paris. Every build starts from: rOI/savings calculator.

Tecklogist builds solar & renewables websites for Paris businesses on fixed-price, fixed-timeline projects: solar panel website design, solar installation company website, renewable energy web development. You own the code and content at handover, and every project includes 30 days of post-launch support.

  • Fixed price & timeline
  • Reply within 24h
  • You own the code
  • 10-49 staff
Get a free solar & renewables quote[email protected]
  1. 02

    Smile Open Source Solutions

    smile.eu

    Paris open-source integrator and web agency for French enterprises.

    Solar & Renewables fit: Relevant solar & renewables signals in its public profile: with, enterprise. Ask for live solar & renewables website examples before shortlisting.

    MagentoDrupalIbexaOpen Source CMS

    Best for French enterprise and public sector clients building open-source CMS and commerce platforms

  2. 03

    VML France

    vml.com

    WPP agency with Paris operations delivering enterprise digital and commerce builds.

    Solar & Renewables fit: Relevant solar & renewables signals in its public profile: with, enterprise. Ask for live solar & renewables website examples before shortlisting.

    Digital CampaignsCommerceCRMData

    Best for French FMCG and consumer brand enterprise clients needing CRM-integrated digital campaigns

  3. 04

    Theodo

    theodo.fr

    Paris software development firm known for fast, agile React and React Native delivery.

    Solar & Renewables fit: Relevant solar & renewables signals in its public profile: with. Ask for live solar & renewables website examples before shortlisting.

    ReactReact NativeRuby on RailsAgile

    Best for Paris startups and scale-ups wanting senior agile engineering on React and React Native

  4. 05

    Valtech France

    valtech.com

    Paris office of global enterprise digital experience agency Valtech.

    Solar & Renewables fit: Relevant solar & renewables signals in its public profile: enterprise. Ask for live solar & renewables website examples before shortlisting.

    SitecoreSalesforce CommerceDigital TransformationCX

    Best for French enterprise clients building Sitecore or Salesforce Commerce Cloud platforms

  5. 06

    Fabernovel

    fabernovel.com

    Paris innovation consultancy and digital product studio for large French organisations.

    Solar & Renewables fit: Relevant solar & renewables signals in its public profile: with. Ask for live solar & renewables website examples before shortlisting.

    Innovation StrategyDigital ProductsUX DesignReact

    Best for Large French organisations commissioning innovation strategy and digital product design

  6. 07

    Octo Technology

    octo.com

    Paris technical consulting and software engineering firm for French enterprise clients.

    Solar & Renewables fit: Relevant solar & renewables signals in its public profile: enterprise. Ask for live solar & renewables website examples before shortlisting.

    Technical ArchitectureAgile CoachingJavaCloud

    Best for Large French corporations needing software architecture consulting and cloud-native engineering

  7. 08

    Dropteam

    dropteam.fr

    Home | Agence Drupal | dropteam

    Solar & Renewables fit: Generalist studio with no published solar & renewables specialism. Worth considering for broader builds; ask for comparable solar & renewables website work first.

  8. 09

    Actency

    actency.fr

    Agence Web spécialisée Drupal - Actency

    Solar & Renewables fit: Generalist studio with no published solar & renewables specialism. Worth considering for broader builds; ask for comparable solar & renewables website work first.

  9. 10

    Twinbi

    twinbi.fr

    Twinbi | Agence Web Paris, Création Site Internet et WebDesign

    Solar & Renewables fit: Generalist studio with no published solar & renewables specialism. Worth considering for broader builds; ask for comparable solar & renewables website work first.

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How to choose a solar & renewables web developer

Before you sign with any solar & renewables web developer in Paris, check these points in the first call. Good teams answer them with live examples rather than promises.

  1. 01

    ROI/savings calculator

  2. 02

    Accreditation badges with verification links

  3. 03

    Case study pages with before/after bills, system size, installation timeline, and verified Google review

  4. 04

    Finance/payment option page

  5. 05

    Postcode/state eligibility checker for government incentives

What a solar & renewables website costs in Paris

Indicative ranges as of October 2026. Scope, platform and integrations move the price.

Business website

Paris market€5,000 – €20,000

Tecklogistfrom €799

3–6 weeks

E-commerce store

Paris market€10,000 – €45,000

Tecklogistfrom €1,499

4–10 weeks

Custom web app

Paris market€20,000 – €120,000

Tecklogistfrom €2,999

8–20 weeks

How we build your solar & renewables website

  1. 01

    Discovery & brief

    Your goals, Paris competitors, audience and the integrations your site needs, mapped before any design starts.

  2. 02

    Design & prototype

    A clickable prototype you review on a real device before code, with solar & renewables conventions built in.

  3. 03

    Build & integrate

    Built on the agreed platform, connected to your CRM, payments, booking or inventory, and tested across devices.

  4. 04

    Launch & support

    A go-live planned to protect your Paris rankings, then 30 days of fixes, updates and monitoring.

The solar & renewables market in Paris

Paris businesses commissioning websites typically pay agency rates of €600-€1,500/day. For solar & renewables projects, the agencies worth shortlisting are the ones that can show live solar & renewables work, not just a generic portfolio.

France's La French Tech initiative has supported over 40 unicorn companies, with Paris hosting more than 30 of them. The CNIL - France's data protection authority - is one of Europe's most active GDPR enforcement bodies, having issued multiple high-profile fines against Google and Meta. RGPD (French GDPR) compliance is a technical necessity for any website targeting French users.

30+
Tech unicorns headquartered in Paris
1,000+
Startups resident at Station F, the world's largest startup campus
#3
European city by total digital agency revenue

Recent work from Tecklogist

wdsfinance.com
Accountancy firm website by Tecklogist

Finance · Web design

Accountancy firm website

sadiqbrothers.pk
5,000-product online store by Tecklogist

Retail · E-commerce

5,000-product online store

clinic website
Medical practice website by Tecklogist

Healthcare · Web design

Medical practice website

Solar & Renewables web development in Paris: FAQs

How much does a solar & renewables website cost in Paris?+

In Paris, a business website typically costs €5,000 – €20,000, while a custom web app runs €20,000 – €120,000. Agency day rates of €600-€1,500/day are the main driver, followed by integrations and how much custom functionality you need. Tecklogist quotes solar & renewables projects from from €799 at a fixed price.

How long does it take to build a solar & renewables website?+

A business website usually takes 3–6 weeks; a custom web app takes 8–20 weeks. Delays almost always come from late content, unclear scope or third-party integrations, so agree those before work starts.

Which platform is best for solar & renewables websites?+

The usual options are WordPress with custom ROI calculator and Next.js for enterprise solar companies. The right one depends on how often your team edits content, which systems the site must connect to and your budget, so be wary of any Paris agency that recommends the same platform for every client.

What should I ask a solar & renewables web developer in Paris before hiring?+

Ask about rOI/savings calculator; accreditation badges with verification links; case study pages with before/after bills, system size, installation timeline, and verified Google review. Then ask for two or three live solar & renewables websites they built, who will actually work on yours, and what support looks like after launch.

Why is Tecklogist ranked first on this list?+

This list is published by Tecklogist, and we rank ourselves first because solar & renewables websites are core work for us: fixed prices, fixed timelines and code you own. The other Paris agencies are ordered by the solar & renewables evidence in their public profiles, and none of them pay to appear.

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