COMPARISONS

OpusFlow vs Sollit Features Comparison

OpusFlow's features and community driven approach make it the best Sollit (Formerly 2Solar) alternative you can wish for.

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Find out how OpusFlow stacks up against Sollit
Join over 3.000 installers using OpusFlow

Why Switch?

Switching from Sollit to OpusFlow can bring your installation business a more organised and connected way to work. With OpusFlow, you get one system where sales, detailed planning, scheduling, stock, and project delivery all come together in a clear workflow. You can reduce manual steps, keep everyone aligned, and manage each job with more confidence – while giving your business the structure it needs to grow smoothly.

OpusFlow vs Sollit
at a glance

The features that matter most to your business, compared side by side.

Sollit

Unknown
Unknown

OpusFlow

€99
Per License
Fully Cloud-Based
Yes, native included
Yes, native included
User Management
Yes, native included
Yes, native included
Heat Pump Calculator
No data available
Yes, native included
Solar Design Software
Yes, native included
Yes, native included
CRM
Yes, native included
Yes, native included
Customer Portal
Yes, native included
Yes, native included
Invoicing (Accounts)
Yes, native included
Yes, native included
Purchasing & Stock
No data available
Yes, native included
Planning
Yes, native included
Yes, native included
Internal dashboarding
Yes, native included
Yes, native included
Internal Tickets & Chats
No data available
Yes, native included
Internal Forms & Site Survey Forms
Yes, native included
Yes, native included
Document Management
Yes, native included
Yes, native included
Custom built & DIY automations for workflow
Yes, native included
Yes, native included
Warehouse Management
No data available
Yes, native included
Project Management
Yes, native included
Yes, native included
Battery Calculator
No data available
Yes, native included
AI Data Assistant
No data available
Yes, native included
Time Registrations
Yes, native included
Yes, native included
Open API
Yes, native included
Yes, native included
Quotations
Yes, native included
Yes, native included
Contract Management
Yes, native included
Yes, native included

Sollit

Unknown
Unknown

OpusFlow

€99
All-in-one Price
Fully Cloud-Based
Sollit
OpusFlow
Yes, native included
Yes, native included
User Management
Sollit
OpusFlow
Yes, native included
Yes, native included
Heat Pump Calculator
Sollit
OpusFlow
No data available
Yes, native included
Solar Design Software
Sollit
OpusFlow
Yes, native included
Yes, native included
CRM
Sollit
OpusFlow
Yes, native included
Yes, native included
Customer Portal
Sollit
OpusFlow
Yes, native included
Yes, native included
Invoicing (Accounts)
Sollit
OpusFlow
Yes, native included
Yes, native included
Purchasing & Stock
Sollit
OpusFlow
No data available
Yes, native included
Planning
Sollit
OpusFlow
Yes, native included
Yes, native included
Internal dashboarding
Sollit
OpusFlow
Yes, native included
Yes, native included
Internal Tickets & Chats
Sollit
OpusFlow
No data available
Yes, native included
Internal Forms & Site Survey Forms
Sollit
OpusFlow
Yes, native included
Yes, native included
Document Management
Sollit
OpusFlow
Yes, native included
Yes, native included
Custom built & DIY automations for workflow
Sollit
OpusFlow
Yes, native included
Yes, native included
Warehouse Management
Sollit
OpusFlow
No data available
Yes, native included
Project Management
Sollit
OpusFlow
Yes, native included
Yes, native included
Battery Calculator
Sollit
OpusFlow
No data available
Yes, native included
AI Data Assistant
Sollit
OpusFlow
No data available
Yes, native included
Time Registrations
Sollit
OpusFlow
Yes, native included
Yes, native included
Open API
Sollit
OpusFlow
Yes, native included
Yes, native included
Quotations
Sollit
OpusFlow
Yes, native included
Yes, native included
Contract Management
Sollit
OpusFlow
Yes, native included
Yes, native included
Not listed in public documentation as of June 4, 2026
Join over 3.000 installers using OpusFlow
“OpusFlow has truly transformed our daily operations, making us more efficient and effective in managing our business. The seamless integration of processes and the ability to customize templates have been game-changers for us. Working with OpusFlow feels natural, and the software's responsiveness to our feedback has been invaluable.”

Reasons to choose OpusFlow

Most platforms track your projects. OpusFlow tracks your margins. Built from the ground up for solar and sustainable energy installers, it connects every job, every euro, and every team member in one system.

Below, we break down some of OpusFlow’s key capabilities that make it a powerful all-in-one alternative in the Sollit vs OpusFlow comparison.

OpusFlow delivers a complete all-in-one ERP for installation businesses

OpusFlow functions as a full ERP platform designed specifically for companies delivering renewable energy installations. Core business processes such as sales, project execution, purchasing, finance, documentation, and reporting all operate within one connected system.

This unified setup ensures that data flows smoothly across teams. Everyone works from the same information, enabling clearer collaboration, better planning, and stronger operational control as your business grows.

Build and maintain strong customer relationships with OpusFlow

OpusFlow centralises customer information, communication, and project history into one accessible view. Built-in CRM functionality gives your team full context at every customer interaction, from first enquiry to long-term support.

With clearer insights and organised communication through Customer Portal, your team can respond faster and more consistently. Customers experience a more professional journey, leading to improved satisfaction and long-lasting relationships.

Control purchasing and warehouse operations from a single source of truth

OpusFlow brings purchasing and inventory management into the same system as your projects and finances. Stock levels, orders, and material usage are tracked in real time, ensuring accuracy across the business.

Working from one source of truth helps avoid delays caused by missing materials or over-ordering. Planning becomes more reliable, and coordination between office, warehouse, and field teams improves significantly.

Purchasing and stock | OpusFlow
Battery calculator | OpusFlow

Grow beyond solar with OpusFlow as your renewable business expands

OpusFlow is built to support installation businesses that expand into additional renewable technologies. The platform adapts easily to projects involving heat pumps, battery storage, EV chargers, wind turbines, and future energy solutions.

As your offering evolves, OpusFlow grows with you. You can manage increasing complexity within the same ERP structure, giving you the confidence to scale without losing clarity or control.

Automate your workflows with OpusFlow to simplify daily operations

OpusFlow automation reduces manual effort by triggering tasks, updates, and reminders automatically as projects move through different stages. Processes run consistently without relying on constant follow-up from your team.

This automation keeps operations efficient and predictable. Your team can focus on delivering quality work and supporting customers, while OpusFlow ensures routine actions are handled reliably in the background.

Automations | OpusFlow
Primary benefits of ERP systems - Opusflow

OpusFlow has all the solutions for your business

Empower your business with OpusFlow: a comprehensive solution for all your needs.

Customer Testimonials

Making the switch is a big decision. These companies made it, and here’s what changed.

“The transition to OpusFlow has been a game-changer for Smart-NRG and I would highly recommend it to other solar installation companies for its all-in-one solution and cost-effective benefits.”
Smart-NRG
Bart Wansink - Director
Smart-NRG
“OpusFlow has truly transformed our daily operations, making us more efficient and effective in managing our business. The seamless integration of processes and the ability to customize templates have been game-changers for us. Working with OpusFlow feels natural, and the software's responsiveness to our feedback has been invaluable.”
David van Gaalen - Co-founder
RECHARGED
"By using OpusFlow, we were able to centralise our processes and massively increase efficiency. Our cost-per-quote ratio has certainly decreased by 50% as a result."
Patrick Salmon – Sales Manager, AMPERA Solar- & Energiesysteme
AMPERA

FAQ

Everything you want to know before booking a demo.

How are payments collected once a contract is signed?

OpusFlow integrates directly with Mollie to handle SEPA Direct Debit payments. When a customer signs the contract, they authorise a direct debit mandate at the same time. From that point, payments are collected automatically on the billing schedule without any manual chasing, payment links, or follow-up required from your team.

Do my consultants need technical training to use the calculation tools?

The tools are designed to be used on-site by sales consultants, not engineers. The PV Designer handles string validation and technical checks automatically, flagging errors without requiring the user to understand the underlying rules. The battery and heat pump calculators guide the user through a step-by-step input flow and generate the recommendation from there. Most consultants are comfortable running a full calculation independently within their first few demos.

What reward do I get for referring an installer to OpusFlow?

For every successful referral, when the referral subscribes to OpusFlow for a minimum of 3 licenses and on an anual contract, both you and the referred installer receive €250.

The referred installer receives their award as a discount to their first years subscription, and you will receive the money via bank transfer as outlined in our terms and conditions. 

Is it possible to compose my own forms?

Yes! You can build your own forms from scratch and save them as templates, so every installation type has exactly the right checklist.

Do I need experience in the solar or sustainable energy industry?

No. We care more about the right mindset than sector knowledge. You’ll learn the industry quickly by working with the product and the team every day. What we do look for is curiosity, ownership, and the drive to get things done.

Can I switch between monthly and annual billing?

Yes. You can upgrade from monthly to annual at any time. Once your annual contract ends, you’re free to switch back to monthly if you prefer.

How accurate are the solar yield and ROI projections?

Solar yield calculations are based on real localised irradiance data, factoring in the exact orientation, tilt, and shading conditions entered during the design. The ROI model incorporates current energy tariffs, applicable subsidies, and hardware degradation curves to build a 25-year projection. For the Dutch market, additional levers are available including feed-in cost modeling and salderingsregeling phase-out scenarios. The methodology is consistent across every consultant, so the numbers your team presents reflect the same underlying model every time.

See how OpusFlow stacks up against others

Browse more side-by-side comparisons and see the difference for yourself.

OpusFlow vs STEL Order comparison | OpusFlow

OpusFlow vs STEL Order

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OpusFlow vs PV*SOL comparison | OpusFlow

OpusFlow vs PV*SOL

OpusFlow’s features and community driven approach make it the best PV*SOL alternative you can wish for.
OpusFlow vs Solarstream comparison | OpusFlow

OpusFlow vs Solarstream

OpusFlow’s features and community driven approach make it the best Solarstream alternative you can wish for.

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