The All-In-One ERP software for Home Battery

Every solar installation is a battery opportunity.
Home battery sales are won by the consultant who can size the right system, justify the investment, and close in the same appointment. OpusFlow gives your team a built-in battery calculator that recommends the right battery based on the customer’s actual energy profile, generates a full 25-year ROI, and adds everything to the quote before you leave the house.
Join over 3.000 installers using OpusFlow

Why opusflow

Benefits for your company

Here’s what changes when your battery sales and operations run in one place. No more guessing which battery to recommend, no more separate ROI spreadsheets, and no more admin pile-up after every install. Sales, planning, procurement, and invoicing all work from the same data, updated in real time.
Right battery. Right customer. Every time.
Batteries ranked by match score against the customer’s energy profile. No guesswork.
25-year ROI, built in minutes
Model payback time and savings on-site. Exportable directly within the quote PDF.
Stock reserved at point of sale
Materials are reserved the moment a contract is signed. No install-day gaps.
Invoices without the manual work
Invoices inherit line items directly from finalised material lists. No re-entry needed.

WHERE BATTERY INSTALLERS LOSE DEALS

Three things that cost you the sale or the margin

It’s rarely one big failure. It’s the consultant who couldn’t justify the investment on the spot, the battery that wasn’t compatible with the inverter, the invoice that went out with the wrong figures. These are the three places OpusFlow closes the gap for home battery installers.

Sound familiar?

You can't justify the investment fast enough to close on-site

Your consultant recommends a battery, but the customer wants to see the numbers. You promise to send a calculation later. By the time it lands in their inbox, they’ve spoken to two other installers and the moment has passed.

Your consultant selects a battery that looks right on paper. But it isn’t compatible with the inverter already in the quote. Nobody catches it until the materials arrive on site. The job gets delayed. The customer loses confidence.

Subsidy applications sit in a shared inbox with no owner. Invoices go out late, missing line items, or referencing the wrong system specs. Hour registrations aren’t submitted until the end of the month. By then, the numbers don’t add up and nobody knows why.

Sized, justified, and closed. Same visit.

OpusFlow’s battery calculator guides your consultant through the customer’s energy profile, recommends batteries ranked by match score and payback time, and generates a full 25-year ROI overview, including self-consumption rate and autonomy percentage. The full breakdown is exportable as part of the quote PDF before you leave the appointment.

Compatible options. Ranked automatically.

OpusFlow automatically ranks compatible batteries higher based on the inverter already selected in the quote. Incompatible options are flagged before anything is ordered, so mis-sells are caught in the sales process, not on install day.

Clean records in. Accurate invoices out.

OpusFlow automates the parts that shouldn’t need human effort. Invoices inherit line items directly from finalised material lists. Hour registrations from the mobile app feed straight into project cost reports. Stock is updated automatically when a material list is confirmed, so your numbers are always current.

Three things that cost you the sale or the margin

It’s rarely one big failure. It’s the consultant who couldn’t justify the investment on the spot, the battery that wasn’t compatible with the inverter, the invoice that went out with the wrong figures. These are the three places OpusFlow closes the gap for home battery installers.

Your consultant recommends a battery, but the customer wants to see the numbers. You promise to send a calculation later. By the time it lands in their inbox, they’ve spoken to two other installers and the moment has passed.

Sized, justified, and closed. Same visit.

OpusFlow’s battery calculator guides your consultant through the customer’s energy profile, recommends batteries ranked by match score and payback time, and generates a full 25-year ROI overview, including self-consumption rate and autonomy percentage. The full breakdown is exportable as part of the quote PDF before you leave the appointment.

Your consultant selects a battery that looks right on paper. But it isn’t compatible with the inverter already in the quote. Nobody catches it until the materials arrive on site. The job gets delayed. The customer loses confidence.

Compatible options. Ranked automatically.

OpusFlow automatically ranks compatible batteries higher based on the inverter already selected in the quote. Incompatible options are flagged before anything is ordered, so mis-sells are caught in the sales process, not on install day.

Subsidy applications sit in a shared inbox with no owner. Invoices go out late, missing line items, or referencing the wrong system specs. Hour registrations aren’t submitted until the end of the month. By then, the numbers don’t add up and nobody knows why.

Clean records in. Accurate invoices out.

OpusFlow automates the parts that shouldn’t need human effort. Invoices inherit line items directly from finalised material lists. Hour registrations from the mobile app feed straight into project cost reports. Stock is updated automatically when a material list is confirmed, so your numbers are always current.

Join over 3.000 installers using OpusFlow

Close the battery deal before you leave

Battery deals are time-sensitive. The consultant who leaves with a signed proposal wins. OpusFlow’s built-in battery calculator takes your customer’s annual energy consumption, night usage, solar data, and grid connection type, and returns a ranked list of battery options with match scores, payback periods, and a full 25-year savings overview. Add the right battery to the quote, generate the ROI breakdown, and send a branded proposal before the appointment is over. Every quote links directly to the project record, the CRM contact, and the material list, so nothing gets lost between the sale and the install.

Quote

Works with the tools your business already runs on

OpusFlow connects natively with Google Workspace, Microsoft 365, Exact, Mollie, and more, so your team hits the ground running, not starting over.

From install day to final invoice, without the friction

Getting a battery job planned, staffed, and invoiced without dropping the thread is harder than it sounds when you’re running multiple installs at once. OpusFlow gives planners a drag-and-drop scheduling calendar with conflict detection and real-time push notifications to field crews the moment anything changes. On-site, technicians work from digital forms with conditional logic, photo capture, and on-screen signatures that sync to the project record instantly. Hours are logged per task from the mobile app, and that data feeds directly into project cost reporting, so you always know where your margin is going.

Planning OpusFlow

What real installation businesses say

These are companies that replaced spreadsheets, disconnected tools, and manual admin with one system. The results below are from their own experience, not estimates, not averages.

Dijkman
“OpusFlow has granted us significant control over our business, a capability that is truly unique and unmatched by any other solution in the market.”

Herik Super - Process Manager

Your AI co-worker for battery operations

OpusAI data assistant is built directly into OpusFlow. Tell it what you need in plain language, show me all open battery jobs planned for this week, create a quote for customer Jansen with a 10 kWh battery, build a report on average battery deal value by consultant, and it handles the rest. No navigation, no clicking through menus. This native AI tool has full context of every project, schedule, quote, and invoice in your account, so its outputs are specific to your business, not generic suggestions.

AI OpusAgent

One platform. Every part of the business covered.

OpusFlow is not a quoting tool with a few extras bolted on. It is a full business platform built specifically for sustainable installation companies — with 25+ modules covering everything from your first customer contact to your final invoice. Here is what is included.

FAQ

Everything you want to know before booking a demo.

How does the automated billing work?

OpusFlow runs a billing engine every night that checks all active contracts and automatically generates invoices for any that are due. There is no manual step required and no risk of a billing run being forgotten because someone was on holiday. The system also includes built-in safeguards that prevent a customer from ever being billed twice for the same period.

Is a ticket linked to the original installation project?

Yes. Every ticket is linked directly to the parent project in OpusFlow, which means the moment a service request comes in, the person handling it has immediate access to the original Bill of Materials, installation photos, engineering models, and the full project history. There is no need to search through archives or ask a colleague — the context is already there.

Can customers see photos from their installation in the Customer Portal?

Yes. Field-captured photos linked to the project are displayed in a gallery within the portal, including installation progress images and final commissioning shots. It’s a straightforward way to keep customers informed and build confidence in the quality of the work being done.

Can customers track where their installation is in the process?

Yes. The customer portal displays a visual milestone tracker showing exactly where the project stands, from initial survey through to commissioning. The indicators update in real time as your team progresses the project in OpusFlow, so customers always have an accurate picture without needing to chase your team for an update.

What can a customer actually see in the portal?

Customers have access to real-time project milestone tracking, all commercial documents linked to their project, scheduled appointment and survey dates, photo galleries from the installation, and a communication thread with your team. Everything relevant to their project is in one place, presented clearly without exposing any of your internal data or other customers’ records.

We run more than one company under the same group. Can OpusFlow handle that?

Yes. OpusFlow’s Multi-Entity Finance feature lets you manage multiple companies, labels, or subsidiaries from a single account. Each entity gets its own branding, invoice number sequences, payment terms, and accounting integration. Projects and quotes are automatically linked to the correct entity, so there’s no risk of invoices going out under the wrong logo or routing to the wrong general ledger.

Can automations work across different departments and modules?

Yes. A single automation can span multiple modules — for example, when an installation is marked complete in project management, it can trigger an invoice in finance, create a follow-up task for the sales team, and send a completion notification to the customer portal simultaneously. Workflows aren’t limited to one department, and you can build approval chains that route between teams as part of the same sequence.

Which tools does OpusFlow integrate with natively?

OpusFlow currently integrates with Google Workspace, Microsoft 365, Mollie for payment processing, the Dutch 2BA product catalog, Exact and Peppol for accounting and e-invoicing, and AEAT for the Spanish market. For tools not on this list, the open API allows you to build custom integrations and connect OpusFlow to virtually any platform in your existing stack.

Do I need technical knowledge to build automations?

No. Automations in OpusFlow are configured through a visual rule builder — you select a trigger, add conditions, and define one or more actions. No code involved. For more complex workflows, pre-configured automation templates give you a proven starting point you can adapt rather than build from scratch. Most teams have their first automations running within an hour of setup.

Can I make a calculation based on my installation plan?

Yes! With the PV Designer you can design both private and commercial roofs and generate a full calculation and Bill of Materials directly from your installation plan.

What type of companies can use OpusFlow?

OpusFlow is built for sustainable installers: think solar, heat pumps, air conditioning, climate control, and wind farms. General installation companies are equally at home on the platform. Thanks to its modular setup, you simply switch off what you don’t need and focus on what matters to your business.

Are there any industry-specific modules?

Yes! OpusFlow is an ERP system built specifically for sustainable installers. Beyond the full ERP suite, it includes industry-specific tools like a PV Designer and Battery Calculator. All designed to work together in one platform.

Does OpusFlow’s CRM work for different types of installation companies?

Yes. The CRM is used by companies installing solar panels, heat pumps, EV charging stations, air conditioning systems, and more. You can tag and filter customers by installation type, which means your pipeline and customer records always reflect the specific products and services your business offers.

What is OpusFlow and who is it built for?

OpusFlow is an all-in-one business management platform built specifically for solar, heatpump, battery, charging stations and other sustainable energy installation companies. It connects your sales, operations, planning, warehouse, and finance in one system so your whole team works from the same data, not separate spreadsheets messaging apps or other external apps or software.

Still have questions?

Our team knows the product inside out. Ask us anything — no sales pressure, no scripts.

Schedule your free demo

Get a live customized demo or discovery call focused on what your organization needs, get answers to your specific questions, and find out why OpusFlow is the right choice for your organization

What can I expect?

“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
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