Our software
Greenion Flow — operations management that pays for itself.
The billing solution Greenion uses to operate its own PV systems: a digital twin of every plant, billing for feed-in, direct marketing and electricity supply, revenues and exposés in one system — instead of Excel, binders and isolated tools.
14 days free · no credit card · ready in 2 minutes
Definition
What is Greenion Flow?
Greenion Flow is the billing solution for operators of photovoltaic systems. The software maps every plant as a complete digital twin, manages meter readings and contracts, and generates billing automatically — from full feed-in to direct marketing to electricity supply contracts.
Greenion built Flow to operate its own systems and uses the software daily in O&M practice. What used to be 2–4 hours of manual billing work per plant, Flow completes in 5–15 minutes — with automatic tax calculation, AI-powered PDF import for grid operator documents, and a portal where owners and electricity customers can access their statements at any time.
The product in detail
What Greenion Flow takes care of for you
From the digital twin of the plant to supply contracts, direct marketer settlements, revenue overviews and shareable exposés — the most important features at a glance.
The digital twin of your plant
Greenion Flow maps every plant completely digitally: master data and technology, meters, contracts, documents and all stakeholders — in one place instead of scattered across spreadsheets, inboxes and binders.
- Complete plant overview: technology, meters, contracts and documents
- Sub-generators and meter structure cleanly modelled
- Meter readings with history — manual, via CSV or from settlements
- All stakeholders of the plant: owners, electricity customers, service providers
Electricity supply contracts with installment and consumption plans
Supplying electricity to tenants, leaseholders or neighbouring businesses? Flow manages your supply contracts including installment and consumption plans and automatically generates invoices and annual settlements — offsetting all installments paid.
- Installment plans with automatically generated rates and invoice PDFs
- Consumption-based billing from real meter readings
- Annual settlement with installment offsetting and automatic tax calculation
- Contract PDFs straight from the system
From contract to annual settlement — no spreadsheets in between.
All direct marketer and grid operator settlements at a glance
No more PDF folders: Flow automatically reads settlements from direct marketers and grid operators using AI and consolidates them per plant and period. You see at a glance what has been settled — and what is still missing.
- AI-powered PDF import with template matching and duplicate detection
- All credit notes and settlements centralised per plant
- Feed-in revenues and market premiums transparently documented
Revenue overview based on real settlement data
Flow does not calculate revenues from estimates but from your actual settlement data: feed-in tariffs, direct marketing and electricity supply come together in a reliable revenue overview — per plant and across your entire portfolio.
- Revenues per plant and across the portfolio
- Based on real settlements instead of forecasts
- Generation data and revenues in context
Plant exposés in one click
Create professional exposés directly from your plant data — for sales, investors or banks. Every exposé is shareable via link and optionally password-protected; the data stays up to date automatically.
- Generated automatically from the stored plant data
- Shareable link, optionally password-protected
- Always current figures instead of outdated PDF attachments
Plant data becomes a shareable exposé — in seconds.
Operate third-party plants, settle with owners automatically
Operating plants that belong to someone else? Flow automatically settles the electricity revenues with the owners — with credit notes as PDFs and a dedicated portal where every owner can view their plants and settlements at any time.
- Revenue settlement for plant owners including credit note PDFs
- Owner portal with dedicated, free access
- Clean separation: everyone only sees their own plants and data
Plants with multiple owners — cleanly split
One plant, several owners? Flow models ownership precisely — whether split by fractional shares, by meters or by inverters. Revenues are allocated automatically and every owner receives their own settlement.
- Split by fractional shares, meters or inverters
- Share transfers with effective dates — sales and changes cleanly documented
- Automatic pro-rata revenue settlement per owner
- Each owner only sees their own share in the portal
One roof, many owners — every settlement is share-accurate.
Also in Greenion Flow
Complete plant operations in one system
Automated billing
Seven billing types from full feed-in to electricity supply, automatic tax calculation, PDF generation and credit note management.
Meter reading management
All meter types — feed-in, consumption, generation, bidirectional. Manual entry, CSV import and period-based consumption tracking.
AI-powered PDF import
Grid operator and direct marketer PDFs are extracted automatically — with template matching, AI fallback and duplicate detection.
Contract management
Electricity supply, direct marketing and maintenance contracts with installment plans and automatic contract PDF generation.
Plant & generation data
Management of plants and sub-generators, inverter integrations and generation monitoring — all operating data in one place.
Multi-role portal
Operators, plant owners and electricity customers each see exactly their data — with an invitation system and role-based access.
Pricing
One price that grows with your plants
Base fee plus a tiered price per plant — all features and unlimited users always included. All prices excl. VAT.
How many plants do you operate?
14 days free · no credit card · book via SEPA direct debit or card
Base fee €29 per month incl. the first plant · plant 2–5: €12 each · plant 6–24: €8 each · from plant 25: €6 each — effective monthly values with annual billing; monthly billing +20%. All prices excl. VAT.
Always included
- All features — no plan tiers, no feature gates
- Unlimited users (operators, owners, electricity customers)
- All 7 billing types incl. direct marketing & electricity supply
- AI-powered PDF import (50 extractions/month included)
- Digital twin, exposés and owner portal
- Plant count adjusts automatically — prorated billing
Enterprise
For utilities and large portfolios: API access, SSO/SAML, SLA with guaranteed availability and individual terms.
Request a quoteFAQ
Greenion Flow — frequently asked questions
What is Greenion Flow?
Greenion Flow is Greenion's billing solution for operators of photovoltaic systems: a digital twin of the plant, meter readings, AI-powered PDF import, automated billing, plant exposés and contract management in one system.
Who is Greenion Flow for?
For operators of PV systems — from a business with a single plant to operators of entire portfolios, including operators of third-party plants. Plant owners and electricity customers get their own portal access to statements and data.
Which billing models does Greenion Flow support?
Seven billing types, including full feed-in, surplus feed-in, direct marketing and electricity supply — with automatic tax calculation, installments, annual settlement and credit note management.
Can I bill electricity supply contracts with installment plans?
Yes. Greenion Flow manages supply contracts with installment and consumption plans, generates installment invoices automatically and creates the annual settlement offsetting all installments paid — including tax calculation and ready-to-send PDFs.
Can I bill plants that belong to someone else (third-party plants)?
Yes. Operators of third-party plants settle the electricity revenues with the plant owners automatically — including credit note PDFs and an owner portal where every owner can view their plants and settlements at any time.
Does Greenion Flow support plants with multiple owners?
Yes. Ownership can be split by fractional shares, meters or inverters — including share transfers with effective dates. Revenues are allocated automatically, every owner receives their own settlement and only sees their own share in the portal.
Can I create plant exposés with Greenion Flow?
Yes. Exposés are generated in one click directly from the stored plant data and are shareable via link — optionally password-protected. Ideal for sales, investors or banks, always with current data.
Does Greenion use the software itself?
Yes. Greenion Flow grew out of our own O&M practice and is used daily to operate Greenion's plants — every feature is proven in real plant operations.
How much does Greenion Flow cost?
Greenion Flow costs a €29 base fee per month including the first plant. Each additional plant is tiered: €12 (plant 2–5), €8 (plant 6–24), €6 (from plant 25) per month. Values apply with annual billing (standard price); monthly billing carries a 20% surcharge. All features and unlimited users are always included. Prices excl. VAT.
How can I try Greenion Flow?
Create a free demo account directly: full feature set for 14 days, sample data preinstalled, no credit card required — ready in 2 minutes.
Try Greenion Flow — right now.
Create your demo account in 2 minutes: 14 days of full features, sample data included, no credit card.