Medium-voltage solar energy, mastered from end to end
Voltikapro designs, installs and optimizes your MV photovoltaic power plants, turning your energy bill into a profitable investment.
Medium-voltage expertise for your energy transition
For 10 years, Voltikapro has been designing, installing and operating medium-voltage photovoltaic power plants for industrial, commercial and public-sector sites. Our mission: sustainably reduce your energy bill while supporting the transition to cleaner energy — from feasibility study through to operational follow-up.
in medium voltage
Technical Rigor
Installations compliant with NF C13-100 and NF C15-100 standards, at every stage of the project.
On-Site Presence
A team present on-site, from the initial quote through to commissioning.
Transparency
Clear quotes, documented project tracking, accessible production reporting.
Engineers, technicians and project managers trained to medium-voltage requirements — the same team supports you from sizing through to maintenance.
Three regulatory frameworks, end-to-end support
From rooftop to ground-mounted power plants, Voltikapro guides you toward the regulatory framework suited to your project.
01
Self-consumption
Produce to cover your own needs and reduce your bill from day one.
The self-consumption scheme lets you produce and consume your own solar electricity, with limited injection of surplus into the STEG grid. We handle the feasibility study, sizing compliant with the NF C15-100 standard, filing the application with STEG and ANME, installation, and commissioning.
Feasibility study → Sizing → STEG/ANME application → Installation → Commissioning.
02
Authorization
Sell your surplus to the grid under an authorized framework, with medium-voltage grid connection.
The authorization scheme is designed for higher-capacity installations, connected at medium voltage (HTA), which sell their surplus electricity to STEG under a framework regulated by ANME. We support you through the HTA grid connection study, preparing the authorization application, negotiating the surplus sale contract, installation, and commissioning follow-up.
HTA connection study → Authorization application → STEG contract → Installation → Follow-up.
03
Concession
Lead a large-scale project awarded through public tender, backed by a long-term power purchase agreement.
The concession scheme covers large-scale photovoltaic power plants, awarded through a public tender and backed by a long-term power purchase agreement (PPA) with STEG. We handle the feasibility and HTB/HTA grid connection study, preparing the tender application, engineering, construction, and then operation and maintenance for the entire contract term.
Study & grid connection → Tender application → Construction → Operation & maintenance.
Structured support, from study to operation
Every Voltikapro project follows a rigorous 5-step process, to ensure a compliant, high-performing and durable installation.
Site Study & Audit
Technical site analysis, assessment of production potential and grid connection constraints.
Technical Sizing
Design of the installation tailored to your needs: capacity, regulatory scheme, equipment selection.
Installation & HTA Grid Connection
Implementation by our teams, in compliance with NF C13-100 and NF C15-100 standards.
Commissioning
Testing, compliance checks and start-up of your photovoltaic power plant.
Follow-up & Maintenance
Production reporting, preventive maintenance and ongoing technical support.
Expertise dedicated to your energy
- Personalized study and comprehensive support
- Quality equipment and professional installations
- Responsive and reliable after-sales service
- Committed to a greener future
Understanding medium-voltage solar energy
Practical guides, news and technical advice to inform your decisions.
Self-consumption, authorization or concession: which scheme should you choose for your project?
Each scheme meets different needs. Discover the criteria that determine the regulatory framework suited to your installation.
Choosing the regulatory scheme is one of the very first decisions to make in a medium-voltage photovoltaic project. It determines not only the administrative steps required, but also the project's profitability and timeline.
With self-consumption, the energy produced is used directly on-site, immediately reducing the electricity bill without relying on a feed-in tariff. This scheme is particularly well suited to industrial and commercial sites with high daytime consumption.
The authorization scheme applies when surplus production is fed into the grid and sold, under a framework regulated by the relevant authorities. It requires a more thorough grid connection study and a complete regulatory application.
Finally, the concession scheme covers large-scale projects, generally awarded through public tender, with a long-term power purchase agreement (PPA). This scheme is suited to multi-megawatt ground-mounted power plants.
At Voltikapro, our team carries out a preliminary audit to identify the scheme best suited to your site, taking into account your consumption profile, local grid capacity and financial objectives.
How much does a medium-voltage photovoltaic installation really cost?
Between the study, equipment and grid connection, here are the expenses to anticipate when budgeting your HTA project.
The cost of a medium-voltage photovoltaic installation depends on several factors that are important to anticipate from the study phase onward.
The most visible expense is equipment: panels, inverters, mounting structures and HTA grid connection equipment (delivery substation, transformer). The quality of the equipment chosen directly influences the installation's lifespan and performance over 20 to 25 years.
Next comes the cost of the installation itself: skilled labor, compliance with NF C13-100 and NF C15-100 standards, and commissioning with compliance testing.
Medium-voltage grid connection is often an underestimated expense: feasibility study, connection fees, and possible grid reinforcement depending on the installed capacity.
Support from the study phase onward helps obtain an accurate estimate and avoid unpleasant surprises during construction.
Transition énergétique : les tendances qui transforment le secteur solaire
Nouvelles réglementations, baisse des coûts, digitalisation du suivi : un tour d'horizon des évolutions du marché.
Le secteur du photovoltaïque en moyenne tension connaît une évolution rapide, portée par plusieurs dynamiques de fond.
Les coûts du matériel continuent de baisser, rendant les projets d'autoconsommation industrielle de plus en plus rentables, même sans subvention. Cette baisse s'accompagne d'une amélioration constante des rendements des panneaux et des onduleurs.
Les cadres réglementaires évoluent également, avec des procédures d'autorisation simplifiées pour encourager le développement des installations en moyenne tension.
La digitalisation transforme aussi le suivi des installations : monitoring à distance, maintenance prédictive et reporting de production en temps réel deviennent des standards attendus par les exploitants.
Voltikapro suit de près ces évolutions pour proposer à ses clients des solutions toujours alignées avec les meilleures pratiques du secteur.
5 signes que votre installation solaire a besoin d'une maintenance
Baisse de rendement, bruit inhabituel, alertes onduleur... apprenez à repérer les signaux qui appellent une intervention rapide.
Une installation photovoltaïque bien entretenue conserve un rendement optimal pendant toute sa durée de vie. Voici les signaux qui doivent alerter.
Une baisse de production inexpliquée, visible sur le monitoring ou la facture d'électricité, est souvent le premier signe d'un problème : encrassement des panneaux, connexion défaillante, ou dégradation d'un onduleur.
Des alertes répétées de l'onduleur ne doivent jamais être ignorées : elles signalent généralement un dysfonctionnement électrique qu'il vaut mieux diagnostiquer rapidement.
Un bruit inhabituel au niveau des équipements peut indiquer une surchauffe ou une usure mécanique nécessitant une inspection.
Un contrat de maintenance préventive avec un suivi régulier permet de détecter ces signaux avant qu'ils n'affectent significativement la performance de votre installation.
Everything about medium-voltage photovoltaics
What is a medium-voltage photovoltaic installation?
It's a solar power plant connected to the grid via a medium-voltage delivery substation, suited to industrial and commercial sites with high energy consumption.
What types of businesses are affected by medium voltage?
Industrial, agri-food, logistics and commercial sites whose subscribed power exceeds the low-voltage threshold.
Is MV photovoltaics profitable for my business?
Profitability depends on your consumption profile and system sizing; our free study lets you estimate your project's return on investment.
What are the procedures with STEG and ANME?
Voltikapro prepares and follows the entire regulatory file through to obtaining the grid connection authorizations.
How long does a project take, from study to commissioning?
The timeline varies depending on the project size and administrative delays; it is specified in the initial feasibility study.
Does Voltikapro provide maintenance after installation?
Yes, a preventive and corrective maintenance contract with continuous monitoring can be set up after commissioning.