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Opéra Energie - Courtier en Energie Paris

Energy consultantVersailles, France

Company portrait

Profile and services

Primary profession
Energy consultant
Location
Versailles, France
Specialism
–
Other professions
–
Online consulting
Not stated
Coverage
Regional
Languages
English
Profile status
Editorially documented
Website
opera-energie.com/nos-agences/courtier-energie-paris/

Profile at a glance

Profession
Energy consultant
Focus
Not stated
Location
Versailles
Languages
English
Online consulting
Not stated
Data as of
06/10/2026
Google data checked
06/10/2026

What to look for in Versailles

Ask energy consultants in Versailles about their listing as efficiency experts and experience with your building type.

Editorial note for orientation – not legal or investment advice.

How the first contact works

  1. 1

    Describe the building and goal: certificate, renovation or subsidy.

  2. 2

    Reply listing required documents (plans, consumption data).

  3. 3

    On-site inspection of the building.

  4. 4

    Report or renovation roadmap and subsidy guidance.

Common questions before you enquire

Is energy consulting subsidised?

Residential energy consulting is subsidised via BAFA when a listed efficiency expert is hired. Terms change; please check current conditions.

Demand or consumption certificate?

The demand certificate is calculated from construction and systems, the consumption certificate from actual usage. Some buildings require the demand certificate.

Guides on this topic

Profile summary

Opéra Energie - Courtier en Energie Paris at a glance

Opéra Energie – Courtier en Energie Paris is an energy broker with a listed business address at 33 Avenue des États Unis in Versailles. Its website identifies the location as its Paris agency. The service is aimed at businesses and condominium associations, focusing on the procurement and management of electricity and gas contracts.

According to its website, the agency helps businesses compare and negotiate energy contracts. This process is intended to take account of consumption, business requirements and the characteristics of the Paris energy market. The described approach includes analysing offers and obtaining competing terms from more than 30 energy suppliers. Sébastien Donguy is named as the regional manager. Published opening hours are Monday to Friday, from 8:30 am to 5:30 pm.

The documented focus is therefore on commercial energy advice and contract brokerage. Technical building assessments, energy performance certificates and renovation planning are not mentioned in the supplied website excerpt. The supplied Google data shows a rating of 4.6 out of 5 stars from 110 ratings.

Automatically summarised from the company's publicly available information, as of 06/10/2026. Not individually verified by the editors. Sources: opera-energie.com

Services according to the company

  • Comparison of electricity and gas offers for businesses
  • Negotiation of electricity and gas contracts
  • Analysis and competitive comparison of offers from more than 30 energy suppliers
  • Support with electricity and gas contract management
  • Optimisation of energy contracts for businesses and condominium associations

Editorial context

Working with a provider in Versailles – what matters

Anyone appointing an energy adviser in Versailles should first distinguish between technical building advice and the commercial optimisation of energy contracts. The supplied information documents Opéra Energie’s electricity and gas brokerage services for businesses and condominium associations. Whether technical assessments or other advisory services are also available would need to be clarified directly.

For a comparison of offers, it is useful to have recent bills, consumption data, existing contract terms and known cancellation or renewal dates available. Where several supply points are involved, the locations covered by the review should be agreed beforehand. A meaningful comparison considers not only the energy price but also fixed charges, contract duration, price guarantees and potential price adjustment mechanisms. If price certainty is offered, customers should understand precisely which components are fixed.

As the agency states that it analyses and seeks competing offers from more than 30 suppliers, prospective clients can ask how participating suppliers are selected and what evaluation criteria are used. The broker’s remuneration, any commissions and the exact scope of ongoing support should also be explained transparently.

Before switching suppliers, it is advisable to establish responsibility for concluding the contract, transmitting information and confirming the supply start date. For businesses and jointly managed buildings in particular, it matters who coordinates matters if delays occur or the supplier requests further information. These organisational considerations complement the price comparison and help clients assess the scope of the proposed service.

Editorial context based on documented profile details, as of 06/10/2026. General information, not legal or investment advice.

Opening hours

  • Monday: 8:30 AM – 5:30 PM
  • Tuesday: 8:30 AM – 5:30 PM
  • Wednesday: 8:30 AM – 5:30 PM
  • Thursday: 8:30 AM – 5:30 PM
  • Friday: 8:30 AM – 5:30 PM
  • Saturday: Closed
  • Sunday: Closed

Source: Google, as of 06/10/2026

Questions & answers

Where is the branch described as the Paris agency located?

The website lists its address as 33 Avenue des États Unis, 78000 Versailles. It identifies the agency as Opéra Energie – Courtier en Energie Paris.

Which customers does the agency serve?

The website names businesses and condominium associations as customers for the management and optimisation of electricity and gas contracts.

How does the agency help compare energy contracts?

According to its website, it analyses offers from more than 30 energy suppliers, seeks competing offers and assists with contract negotiations. The process is intended to take account of requirements and consumption.

What are the agency’s opening hours?

The published opening hours are Monday to Friday, from 8:30 am to 5:30 pm.

What does the brokerage service cost?

The supplied website excerpt does not specify fees or remuneration terms. These should be requested directly through the contact form.

Experiences & reviews

Experiences and reviews of Opéra Energie - Courtier en Energie Paris

Here we collect client experiences and publicly available reviews. Every review on our site is checked by the editors before publication.

Reviews on our site

There are no verified reviews for Opéra Energie - Courtier en Energie Paris here yet.

5 stars0
4 stars0
3 stars0
2 stars0
1 stars0

The bars fill as soon as the first verified review is published.

Google reviews of the company

4.6out of 5 on Google · 110 reviews

For these 110 reviews Google only publishes the overall score and count, no breakdown by stars and at most 5 individual review texts. A star distribution could therefore not be substantiated. As of 06/10/2026.

See all reviews on Google

Positive voices

No positive reviews published yet.

Critical voices

No critical reviews so far.

Selected reviews on Google

The supplied selection of Google reviews mainly highlights advice, responsiveness, clear explanations and support with individual cases. Several positive accounts mention savings or the optimisation of energy costs; one also mentions securing the price. One critical review, however, alleges that the broker did not complete the assignment and reports problems with the supplier registration process and a failure to start energy supply on the scheduled date. That reviewer also criticises the absence of an apology or compensation. These are individual accounts from a selection, not the full set of reviews. The supplied Google data shows an overall rating of 4.6 out of 5 stars from 110 ratings.

Très bon conseil et réactivité de la part de Lilian je recommande. Des économies et j’en sécurisation du prix. C est le top
LA MIE CALINE DE PARTHENAY · 5 months ago · Review on Google
Pour Tuigo Ingénierie & Services, je remercie Lilian pour son efficacité et le suivi de mon dossier. Je recommande sans souci, A+
Equipe3-B11 · 7 months ago · Review on Google
Courtier qui n'a cherché qu'à encaisser sa commission et qui n'a pas mené sa mission à terme, engendrant des problèmes de souscription auprès du fournisseur et l'absence totale de fourniture d'énergie le jour prévu, avec les conséquences pratiques et financières qui s'en sont suivies. Aucune excuse ni aucune compensation. A fuir
michel michel · 3 months ago · Review on Google
Personne à votre écoute, prend le temps de vous expliquer . Elle connait son travail. Je les recommande
Hotel Col De L'Ange · 10 months ago · Review on Google
Entreprise très sérieuse, qui me permet d'optimiser en permanence mes coûts en énergie. Monsieur Ivanow est très professionnel.
Nicolas Dufour · a year ago · Review on Google

Selection of up to five reviews provided by Google, shown unchanged; summary generated automatically. These reviews are not included in the rating on our site.

Offensive posts, anonymous abuse and posts without a recognisable client relationship are not published. Reviews are subjective individual experiences.

Services in this field explained

Energy certificate

The energy certificate describes a building's energy demand or consumption. It is mandatory for sales and lettings.

Who may issue an energy certificate? Among others, energy consultants, architects and engineers with the qualifications required by the Building Energy Act.

Renovation roadmap (iSFP)

The individual renovation roadmap shows step by step how a building can be upgraded for energy efficiency.

Is the roadmap subsidised? Energy advice for residential buildings is subsidised by the federal government. Current rates are published by BAFA.

Getting there

  • Université - Prévert· ca. 120 m
  • Côte de Picardie· ca. 130 m
  • République Lesseps· ca. 240 m

Nearby stops according to Google, straight-line distance.

Questions for the company

No public questions yet. Ask the first one.

Sources and transparency

Profile status is not a guarantee of quality, financial strength or superiority. It indicates how the published details were documented.

View official source