Commercial & Industrial
Your partner for commercial PV systems
We plan, build and operate photovoltaic systems from 100 kWp — preferably on buildings, also on open land.
Get in touchDefinition
What is EPC?
EPC stands for Engineering, Procurement, Construction — planning, sourcing and building from a single source. An EPC partner delivers a photovoltaic system turnkey and carries overall responsibility for the project.
Instead of coordinating an engineering office, wholesaler and installation crew separately, with Greenion you have a single contract partner: we design the system, procure modules, inverters and mounting structures, build the plant, handle grid registration and certification — and on request take over operations and maintenance (O&M) afterwards. For commercial and industrial projects from 100 kWp, this model is the standard because it eliminates interface risks and creates clear responsibility.
Our approach
Why Greenion?
Everything from one source
From demand analysis through planning, construction and ongoing operations — one contact, one responsibility. No friction between planner and contractor.
Storage & EV charging
Battery storage and EV charging infrastructure are integrated into system design from the start — for maximum self-consumption, peak shaving and future-proof infrastructure.
Grounded economics
We model multiple operation scenarios — self-consumption, feed-in, direct supply — so you can decide on the basis of real numbers, not brochure claims.
Services
Our Services
Demand Analysis
Load profile analysis, site assessment and project scoping — before a single module is ordered.
Consumption Optimisation & Storage
System design with storage sizing and EV charging infrastructure for maximum self-consumption.
Technical Planning
String planning, single-line diagrams, schematics and full execution documentation.
Grid & Infrastructure
Transformer stations, LV switchboards, grid application and certification.
Economic Modelling
Scenario simulation for different operation models: self-consumption, feed-in, direct supply.
Grid Operator Communication
Capacity analysis, applications and technical negotiations through to approval.
Project Management
Coordination of all trades, scheduling and ongoing communication with all stakeholders.
Commissioning
Tests, protocols and full documentation handover — fully turnkey.
Project process
From inquiry to commissioned system
Initial meeting & analysis
We discuss your goals, analyse load profiles and define the project scope — free and non-binding.
Planning & permitting
Technical execution planning, authority coordination and grid application — fully documented.
Construction & commissioning
Turnkey delivery: mounting, electrical, grid connection, certification and protocol handover.
Operations & optimisation
Monitoring, maintenance contract and commercial management with our Greenion Flow software — for ongoing profitability improvement.
Operations with Greenion Flow
Monitoring, meter readings, billing and maintenance contracts run on Greenion Flow — the operations software we built for our own plants. As an EPC client, you benefit from day one.
Selected projects
Delivered systems
Logistics Center Siegenburg
1,999 kWp rooftop system on a logistics center, combined with a 6 MWh battery storage. Full EPC from planning through commissioning in 2026.
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Retail Park Zeven
362.7 kWp rooftop system on a retail park — Greenion's first project using the VB-Token. Investors participate directly in the returns; the system starts as full feed-in and is progressively transitioned to tenant electricity supply.
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Industrial Facility Brilon
571 kWp new system on an industrial production building, integrated with existing PV, battery storage, and EV chargers. Complex certification following extensive grid operator negotiations.
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Commercial Park Spremberg
295 kWp on a multi-tenant commercial building including a DHL facility. The system powers DHL's local electric vehicle fleet.
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Food Manufacturer Bergheim
600 kWp rooftop system at a food manufacturer. Greenion took over fault analysis and commissioning after the original DC installer delivered incomplete work and went insolvent.
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Production Building AGO Energie
112 kWp rooftop system on the production building of AGO Energie (subsidiary of RheinEnergie AG). Consistent use of premium components: Mayer Burger modules and SMA inverters.
View projectFAQ
EPC & commercial solar — frequently asked questions
What does EPC mean in photovoltaics?
EPC stands for Engineering, Procurement, Construction. An EPC partner like Greenion delivers the photovoltaic system turnkey: from technical design through component sourcing to installation, grid connection and commissioning. You have one contract partner carrying overall responsibility.
From what system size does Greenion deliver projects?
Greenion delivers PV systems from 100 kWp for commercial and industrial buildings. Battery storage and EV charging infrastructure can be integrated into the system design from the start.
What does a commercial PV system from 100 kWp cost?
Costs depend on roof condition, grid connection situation and component selection. In a free initial consultation, Greenion prepares an economic feasibility analysis with multiple operation models — self-consumption, feed-in and direct supply — so you can decide based on concrete numbers.
How does an EPC project with Greenion work?
In four phases: initial consultation with load profile analysis, planning and permitting including grid registration, turnkey construction with commissioning and certification, followed by operations with monitoring and maintenance.
Does Greenion also handle maintenance and operations?
Yes. Greenion offers O&M (Operations & Maintenance): technical monitoring, maintenance contracts and commercial management — handled digitally in our own Greenion Flow software, including for systems not built by Greenion.
Is battery storage worthwhile for commercial businesses?
Storage increases self-consumption and can cap load peaks (peak shaving), which reduces grid fees. Whether it pays off depends on the company's load profile — Greenion simulates this as part of the feasibility analysis.