A sale is won or lost at two moments. The first is when the customer asks what their system will cost and what they will save — if you can’t answer that in the room, the momentum dies before you leave. The second is when the proposal arrives. If it’s late, inconsistent, or missing the battery or heat pump the customer mentioned, the deal is already at risk.
Your consultant sits with the customer, roof measurements in hand, and has to say the words that kill deals: “I’ll get back to you with the quote.” The design needs a technical check. The string configuration needs reviewing. By the time the proposal lands in the customer’s inbox, two days have passed and the enthusiasm from the appointment has cooled. The delay isn’t a technical necessity. It’s a process problem.
One rep uses a shared spreadsheet. Another built their own model years ago and never updated it. A third eyeballs the payback period based on experience. The customer gets a different-looking proposal depending on who visited them, and your business gets inconsistent margins because no one is pricing from the same starting point. When a complaint comes in about a calculation that doesn’t match reality, it’s almost impossible to trace back.
The solar visit is going well. The customer asks whether they should add a battery. Or whether a heat pump makes sense given the solar they’re installing. Your consultant knows the basics but can’t size it, can’t calculate the combined ROI, and can’t put it in the proposal today. That follow-up calculation gets scheduled as a separate visit, if it happens at all. A potential upsell that should have closed in the same appointment gets lost in the handover.
OpusFlow’s PV Designer runs technical validation in real time — inverter strings, voltage checks, and shading analysis happen as the design is built, not after it’s sent for review. The ROI model layers straight on top, pulling in irradiance data, subsidy inputs, and 25-year savings projections. Your consultant walks in with a tool that does the engineering and the financial case simultaneously, so the answer to “what will this cost and what will I save” is ready before the customer asks.
Every consultant on your team works from the same calculation engine. The same irradiance data, the same ROI methodology, the same subsidy inputs — so the proposal a customer receives reflects your actual pricing and your actual margins, regardless of which rep visited. When a calculation needs to be revisited, the inputs are all there and the logic is traceable. No spreadsheet archaeology required.
OpusFlow’s battery calculator ranks compatible options by match score against the customer’s actual energy profile, with inverter compatibility checked automatically. The heat pump calculator runs a certified heat loss calculation room by room and recommends the right unit based on the building’s actual thermal characteristics. Layer all three into a single proposal and your consultant can present a complete renewable energy picture — with combined ROI — without scheduling a second visit.
A sale is won or lost at two moments. The first is when the customer asks what their system will cost and what they will save — if you can’t answer that in the room, the momentum dies before you leave. The second is when the proposal arrives. If it’s late, inconsistent, or missing the battery or heat pump the customer mentioned, the deal is already at risk.
Your consultant sits with the customer, roof measurements in hand, and has to say the words that kill deals: “I’ll get back to you with the quote.” The design needs a technical check. The string configuration needs reviewing. By the time the proposal lands in the customer’s inbox, two days have passed and the enthusiasm from the appointment has cooled. The delay isn’t a technical necessity. It’s a process problem.
OpusFlow’s PV Designer runs technical validation in real time — inverter strings, voltage checks, and shading analysis happen as the design is built, not after it’s sent for review. The ROI model layers straight on top, pulling in irradiance data, subsidy inputs, and 25-year savings projections. Your consultant walks in with a tool that does the engineering and the financial case simultaneously, so the answer to “what will this cost and what will I save” is ready before the customer asks.
One rep uses a shared spreadsheet. Another built their own model years ago and never updated it. A third eyeballs the payback period based on experience. The customer gets a different-looking proposal depending on who visited them, and your business gets inconsistent margins because no one is pricing from the same starting point. When a complaint comes in about a calculation that doesn’t match reality, it’s almost impossible to trace back.
Every consultant on your team works from the same calculation engine. The same irradiance data, the same ROI methodology, the same subsidy inputs — so the proposal a customer receives reflects your actual pricing and your actual margins, regardless of which rep visited. When a calculation needs to be revisited, the inputs are all there and the logic is traceable. No spreadsheet archaeology required.
The solar visit is going well. The customer asks whether they should add a battery. Or whether a heat pump makes sense given the solar they’re installing. Your consultant knows the basics but can’t size it, can’t calculate the combined ROI, and can’t put it in the proposal today. That follow-up calculation gets scheduled as a separate visit, if it happens at all. A potential upsell that should have closed in the same appointment gets lost in the handover.
OpusFlow’s battery calculator ranks compatible options by match score against the customer’s actual energy profile, with inverter compatibility checked automatically. The heat pump calculator runs a certified heat loss calculation room by room and recommends the right unit based on the building’s actual thermal characteristics. Layer all three into a single proposal and your consultant can present a complete renewable energy picture — with combined ROI — without scheduling a second visit.
OpusFlow’s PV Designer lets your team place panels on an interactive roof surface, configure inverter strings, and catch technical errors before a quote ever goes out — using real irradiance data, precise orientation inputs, and granular shade analysis. The ROI model builds on top of the design automatically, generating a 25-year savings projection, break-even timeline, and subsidy calculation that your consultant can walk the customer through on-site. The proposal generates directly from the design, so what the customer signs matches exactly what gets installed.
OpusFlow connects natively with Google Workspace, Microsoft 365, Exact, Mollie, and more, so your team hits the ground running, not starting over.
Enter your customer’s energy profile and OpusFlow ranks compatible battery options by match score, payback period, and total investment, with inverter compatibility verified automatically to prevent mis-sells. The redesigned ROI overview shows a full 25-year investment journey, self-consumption and autonomy percentages, and an energy flow diagram your customer can follow in real time during the appointment. Every calculation exports directly into the PDF quote. And because the battery flow sits inside the same quotation process as the solar design, every solar installation becomes a natural conversation about storage. With the numbers to back it up.
OpusFlow’s heat pump calculator runs a DIN EN 12831-certified heat loss calculation room by room, covering U-values, thermal bridges, ventilation, and airtightness. Import a 3D scan directly from your phone, work through the building systematically, and get a heat pump sizing recommendation with COP estimates based on the actual radiator type — with plain-language output your consultant can read straight to the customer without needing an engineering degree to explain it. Combine it with the solar and battery calculations and your team can present a complete renewable energy proposal, with a full financial picture, in a single home visit.
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.
Everything you want to know before booking a demo.
Yes. Once the design and calculation are complete, OpusFlow’s automation engine can send a templated follow-up email the moment the quote goes out. OpusAI goes further: instruct it in plain language to draft a personalised proposal email, create the CRM contact record, and summarise the system spec from your notes — all without manual data entry. The calculation work closes the deal on-site. OpusFlow handles everything that comes after it.
Yes. The solar design, battery recommendation, and heat pump sizing all feed into the same quotation flow within OpusFlow. The combined ROI can be presented as a single financial picture covering the full renewable energy installation, and the full output exports into one branded PDF proposal. Your consultant can cover all three in a single appointment and send a complete, itemised quote before leaving the customer’s home.
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.
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.
The calculator is designed to be used by sales consultants on-site, not heat pump engineers. The 3D scan does the heavy lifting for room geometry, the input flow guides the consultant through the remaining variables, and the output is generated automatically from there. The plain-language recommendation is specifically written to be read straight to the customer without requiring the consultant to interpret technical data. Most teams are comfortable running a full assessment independently after a single walkthrough of the tool.
Yes. The heat pump calculator sits inside the same quotation flow as the PV Designer and battery calculator, so your consultant can cover solar design, battery sizing, and heat pump assessment in a single appointment and present a combined proposal with a full renewable energy picture — including a joint ROI calculation — in one branded PDF. No switching between tools, no separate follow-up visits.
Yes. The calculation follows the DIN EN 12831-1:2017 methodology, which is the recognised European standard for determining building heating load. It covers per-room heat loss including U-values, thermal bridges, ventilation, airtightness, and surface adjacency. The output is a DIN-compliant PDF report that includes a per-room breakdown, total heat demand, and the final hardware recommendation — suitable for use as supporting documentation with the customer or for your own internal records.
OpusFlow accepts scans from iPhone Pro (via LiDAR), Matterport, Polycam, and other scanners that export in OBJ, STL, GLTF, or GLB formats. The scan is processed directly in the browser — no file upload to a server is required, which keeps the process fast and keeps your customer data on-device during the calculation.
Our team knows the product inside out. Ask us anything — no sales pressure, no scripts.
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