Best Solar Proposal Software in Italy: Top 10 for 2026

📘 Regulation note

The commercial document sits on top of a technical one. The system still connects under CEI 0-21 at low voltage or CEI 0-16 at medium voltage, through the distributor's connection process, and the preventivo di connessione you receive from the distributor is a different document from the preventivo you send the customer. Say which is which in writing, because the word doing double duty is a real source of confusion in Italian solar sales.

Bring one of your own sites to a free SurgePV demo. We will build the 3D roof from a satellite address, run the 8,760-hour shading simulation, and hand you the SLD, BOQ and branded proposal on the call.

The 5-Point Italy Proposal Bench

This is the scoring frame used for every platform below. It is ours, and you can run it inside any trial. Each axis scores 1 to 10, for a maximum of 50.

1. Financial realism. Ritiro Dedicato export pricing rather than a net-metering credit, self-consumption modelled hourly, battery contribution shown separately, IVA applied by case rather than by global default.
2. Detrazione handling. The deduction expressed as ten annual instalments in a dated cash flow, with the customer’s tax capacity flagged as an assumption rather than buried.
3. Document craft. Itemised preventivo at computo metrico granularity, component datasheets attached, stated simulation method and specific yield, warranty terms per component, Italian that reads as Italian.
4. Engineering behind the number. Module-level 8,760-hour shading, P50 and P90, realistic degradation and soiling, and a specific yield that is right in both Trapani and Trento.
5. Cost per finished proposal. Licence plus modules divided by realistic monthly volume, in euros.

Axis two is the one that separates the field, and it is the axis almost nobody scores well on. Most tools have an incentive field that takes a percentage and subtracts it. That is a rebate model. Italy is not a rebate market for residential work any more, and a tool that cannot place money in year three is telling the customer a story about a payback that will not match their bank statement.

Top 10 Solar Proposal Software Platforms in Italy Compared

Pricing is 2026 published or reseller-quoted, converted to euros where the vendor prices in dollars. Treat it as a planning figure and confirm with the vendor.

Two honest observations before the detail. First, positions seven and eight are not software you buy the ordinary way: Otovo is a marketplace and CER platforms usually price against the community rather than per seat, but both shape what an Italian customer expects a quote to look like, so they belong in a truthful ranking of what you are competing with. Second, no platform here handles every Italian obligation cleanly, and the real difference is how much manual patching is left on each job.

1. SurgePV

What it does best. SurgePV treats the Italian financial model as a first-class problem rather than a translation exercise. Export is priced on a Ritiro Dedicato basis and shown as a separate line from the self-consumption saving, so the customer sees the ratio that justifies a battery instead of being handed a blended average. The detrazione is modelled as what it is: a deduction recovered in ten equal annual instalments, placed in the cash flow in the years it actually lands, with the customer’s tax capacity carried as a visible assumption. The payback chart that comes out the other side has the shape an Italian buyer recognises, a full outlay in year zero and a slow recovery, rather than the discounted-price fiction most imported templates produce.

The document side matters as much. The preventivo exports itemised down to strutture, cavi e quadri, manodopera, ponteggio and pratiche rather than as a lump sum, with component datasheets attached, the simulation method and assumed specific yield stated in the body, and warranty terms per component. The GSE practice appears as a named responsibility with an indicative timeline. For CER work the model carries shared energy as a third revenue line, with a stated hourly coincidence assumption, so a community proposal is not forced into a single-site template.

Behind the document sits an 8,760-hour module-level simulation with P50 and P90 outputs rather than a monthly average, which matters in a country where the same tool has to be right on an alpine roof with snow cover losses and on a Sicilian roof clearing 1,550 kWh per kWp. Roof geometry generates from satellite imagery in about a minute on a typical villetta with dormers and a courtyard. Proposals export as white-label PDF and as an interactive web link with e-signature.

Pricing. Around EUR 1,180 per user per year on the 5-User Team plan, so roughly EUR 5,900 for five seats, with an individual tier near EUR 1,730 per user per year. Free trial, no card.

Who it suits. Installatori and EPC firms sending five or more preventivi a month, especially those mixing residential self-consumption work with commercial rooftop and the occasional CER, and those whose current process is a design tool plus a spreadsheet plus a Word template.

Honest limitations. Four real ones, stated because a roundup where the sponsor wins on every axis is an advertisement. First, there is no computo metrico estimativo priced against a regional prezzario. SurgePV itemises, and itemisation is most of what a homeowner wants, but a studio quoting into a building file where the client’s engineer will check lines against the prezzario regionale still produces that document in ACCA. That is the single strongest reason an Italian practice would not switch. Second, CER support is partial: it carries shared energy as a revenue line and models each member site, but it does not run portfolio-level optimisation across all members inside one primary substation area, so community designers still do that arithmetic in a specialist tool. Third, the Italian-language output is good but not native-authored, and an installatore reviewing the standard template will find phrasing they would rewrite once before shipping it. Fourth, it prepares the data the GSE and distributor procedures need rather than submitting on your behalf, and it is not a CRM, so follow-up sequencing and the record of who promised what still live elsewhere. For a firm sending three preventivi a month, the licence is not justifiable.

Book a SurgePV demo and bring a real Italian job with a battery and a detrazione question, because that is where the modelling either earns its keep or does not.

2. ACCA Solarius-PV with PriMus

What it does best. ACCA is the largest Italian construction software house and it owns the pricing document. Solarius-PV designs the array and produces the relazione tecnica and schema elettrico, then hands the job to PriMus so it comes out as a computo metrico estimativo priced against a regional prezzario. On any job where the client has an engineer, a geometra or a public body reading the quote, that is the document that ends the argument. No international cloud platform reproduces it, ours included, and Italian buyers who have seen one rarely accept less on comparable work.

Pricing. Not publicly listed. ACCA’s Solarius-PV page carries no price table for the software itself, only a EUR 599 POWER PACK upgrade and an invitation to phone the commercial office for prices and offers. Ask for a quote against the exact module set you need, and ask explicitly whether the figure is an annual subscription or a one-off, because ACCA sells both shapes across its line.

Who it suits. Studi di progettazione, geometri, periti industriali and any firm quoting work that lands in a building file rather than a homeowner’s inbox.

Honest limitations. It is Windows desktop, so no live collaboration and nothing usable from a roof. The output is a technical and administrative document rather than a sales artefact, so firms selling to homeowners rebuild the front half anyway. There is no e-signature flow, no CRM, no satellite roof capture and no interactive web proposal. Its financial modelling is competent on cost and thin on the customer’s twenty-year cash flow, so the detrazione and Ritiro Dedicato story usually ends up in a spreadsheet beside it. The best solar design software in Italy ranking covers the design side of the same product.

3. Blumatica Fotovoltaico

What it does best. Blumatica covers similar ground to ACCA at a lower price point, generating the sizing, the electrical verification, the documentation and a priced quote, usually bundled with the energy certification and safety tools an Italian practice already needs. For a small studio that requires Italian-shaped output and cannot justify a full ACCA subscription, it is the sensible value pick.

Pricing. Not publicly listed for the photovoltaic module. Blumatica publishes annual prices for some of its other titles but not for Blumatica Fotovoltaico, so the figure depends on the bundle you are quoted. Ask for the bundle price and the renewal price in the same email, because the update contract is priced separately from the licence.

Who it suits. Small practices, single-person technical offices and firms where photovoltaics is a minority of the workload.

Honest limitations. Shallower than ACCA on both simulation and pricing integration, no cloud collaboration, no sales-grade proposal, and an interface that assumes you already know Italian technical practice. It generates documents well and sells nothing.

Get an engineering second opinion. If a preventivo depends on a marginal roof, an unusual self-consumption profile or a CER perimeter question, get the numbers checked before the price goes out. Run a fast cross-check with our free solar calculator or talk to our engineering team.

4. OpenSolar

What it does best. A free core design and proposal product funded by hardware referral margin, with a large template library, wide integration coverage and a community that has already answered most setup questions. For a small Italian residential team, entry costs nothing and the first usable quote comes quickly.

Pricing. The core platform is free, for any number of users. OpenSolar has said that API Access, charged per project on creation, and Connectors, charged as a flat monthly fee, become chargeable from 16 April 2026, but it has not published those rates and they vary by geography. So the honest position is that a five-seat Italian team pays nothing today and cannot yet be quoted a 2026 add-on figure. Nothing else on this list is cheaper.

Who it suits. New entrants and low-volume installers whose volume does not justify a licence.

Honest limitations. The Italian financial layer is shallow. Defaults assume net-metering style export, the incentive field behaves like a rebate rather than a ten-year deduction, CER has no concept to map onto, and the itemisation depth Italian buyers expect is not there out of the box. The economics also steer you toward hardware partners. See our OpenSolar alternative comparison.

5. Italian gestionale and preventivo suites

What it does best. A cluster of Italian business-management products handles preventivo, listino, ordine, DDT and fattura elettronica in one place, integrated with the SDI exchange system every Italian business already has to use. For an installatore whose actual pain is administration rather than design, these remove more hours per euro than anything else on this list, and the quote they produce is itemised by default because that is how Italian commercial documents are built.

Pricing. Broadly EUR 25 to EUR 80 per user per month depending on vendor and modules.

Who it suits. Installation firms with an existing design tool that need the commercial paperwork to stop consuming evenings.

Honest limitations. They know nothing about solar. No yield model, no shading, no self-consumption analysis, no Ritiro Dedicato pricing, no detrazione cash flow, no CER. You will build the technical and financial pages elsewhere and paste them in, which is workable but leaves the numbers unversioned. Treat these as an accounting layer, not as proposal software.

6. Aurora Solar

What it does best. Aurora produces arguably the most polished customer-facing sales document in the category, with strong automated design, good storage modelling and a workflow refined against enormous US residential volume. On presentation quality alone it is hard to beat.

Pricing. Aurora publishes US dollar prices: Basic US$135 per user per month billed annually and Premium US$220, which is about EUR 123 and EUR 200 at EUR 0.91 per dollar. Five Premium seats come to US$13,200 a year, roughly EUR 12,012, and five Basic seats to US$8,100, roughly EUR 7,371. Plan sets are a separately priced service rather than a plan inclusion, and LIDAR modelling, bankable shade reports and battery modelling sit on Premium. Worth stating plainly: Aurora Basic at US$1,620 a year per user is cheaper than a single SurgePV Individual seat at US$1,899, and if all you need is a polished residential document, that is a real saving.

Who it suits. International groups extending into Italy with Aurora templates and training already in place.

Honest limitations. The Italian layer is close to absent. No Ritiro Dedicato pricing, no ten-year detrazione cash flow, no CER shared-energy concept, no computo-style itemisation and no Italian document conventions, so your team rebuilds all of it inside the template and then maintains it. Premium per-seat pricing is the highest cloud figure here, though Basic at US$1,620 a year undercuts a SurgePV Individual seat. See our Aurora Solar alternative breakdown.

7. Otovo and marketplace quoting

What it does best. Otovo is a marketplace rather than a software vendor. It acquires the homeowner, standardises the quote and routes the job to a local installer. For an Italian installer whose constraint is lead flow rather than document quality, that is a genuine answer, and the standardised quote removes the sales-document problem entirely.

Pricing. Commission on delivered jobs rather than a licence fee.

Who it suits. Installers with spare crew capacity who would rather buy demand than build a sales function.

Honest limitations. You are renting the customer relationship. Pricing power sits with the marketplace, the document is not yours to differentiate, and margin per job is thinner than direct work. It contributes nothing on commercial rooftop, on CER, or on any job outside the standardised residential product.

8. Specialist CER platforms

What it does best. A set of Italian platforms exists specifically to model and then operate a Comunità Energetica Rinnovabile: member onboarding, perimeter checks against the primary substation area, hourly production and consumption matching, the repartition rule that divides the incentive between members, and the ongoing reporting the community needs once it is live. If you are proposing a CER, this is the only category on the list that can produce the numbers the members will sign against.

Pricing. Usually quoted per community, sometimes with a share of the incentive flow rather than a seat licence.

Who it suits. Anyone assembling an energy community, and the municipalities, parishes and consortia that increasingly initiate them.

Honest limitations. They are not proposal tools for ordinary jobs. There is no roof design, no shading model, no bill of quantities and no residential sales document, so you will run one alongside a normal stack rather than instead of it. The category is young, vendor viability varies, and contract terms that take a slice of the incentive deserve careful reading before you introduce one to a client.

9. Solargraf

What it does best. Speed. Solargraf is built for residential sales teams that need a decent quote out the same day, with e-signature and a short learning curve. New salespeople become productive in days rather than weeks.

Pricing. Solargraf prices by plan rather than by seat, in US dollars: Starter US$2,799 a year covering 240 projects and 2 users, rising to Enterprise US$12,999 for 1,500 projects. API access is US$4,000 a year on every plan except Enterprise. At EUR 0.91 per dollar that is roughly EUR 2,547 to EUR 11,829.

Who it suits. High-volume residential operations where turnaround beats depth.

Honest limitations. Shading and yield modelling are lighter than the engineering-led tools, Italian incentive handling is generic, itemisation falls short of Italian expectations, and commercial capability is limited. Our Solargraf alternative note covers where it stops.

10. Sunbase

What it does best. Sunbase leads with CRM: pipeline, lead routing, follow-up and reporting, with proposal generation attached. If your bottleneck is sales process rather than document quality, that ordering is defensible.

Pricing. Sunbase publishes an entry point of US$59 per user per month, about EUR 54, and does not publish its higher tiers.

Who it suits. Sales-led firms that already have a design tool and need pipeline discipline.

Honest limitations. As a proposal engine it is the weakest here on engineering depth and Italian financial modelling, and it assumes the design arrives from somewhere else. The same pairing logic applies to the sister-brand CRM QuickEstimate, which handles quoting and follow-up but not Italian incentive modelling.

How to Present the Detrazione Without Misleading Anyone

This deserves its own section because it is where Italian proposals most often mislead by accident.

The deduction is recovered from the customer’s income tax in ten equal annual instalments. Three things follow, and all three belong in the document.

1. Show the gross price first. The customer pays the full amount now. Any headline that nets the deduction off the price is describing a transaction that will not occur, and the customer discovers it at the first tax return.
2. Place the instalments in the years they land. A dated cash flow with year zero negative and ten positive tranches is the honest picture. It also makes the case for the system on its own merits, because the self-consumption saving is doing most of the work in the early years.
3. State the capienza fiscale assumption in writing. The instalment is only usable to the extent the customer owes at least that much income tax in that year. A pensioner with modest taxable income may not absorb the whole instalment, and a proposal that assumes full absorption without saying so is setting up a complaint. Write the assumption as a line the customer reads and accepts.

Cost Per Finished Preventivo, in Euros

Licence price is the wrong unit. What matters is cost per proposal that a customer signs, and the ranking changes with volume.

Read those against your close rate. At fifty preventivi a month a bundled licence costs about ten euros per document, less than the diesel for one wasted site visit. At ten a month the arithmetic is tighter but still works if the tool removes a second licence or an hour of manual assembly per job. At three a month it does not, and the honest recommendation is OpenSolar’s free core plus a spreadsheet until volume or a CER forces the issue. Deployment context is in the IEA renewables tracker and IRENA country profiles, and Italian system data in Terna’s statistics.

Preventivo Mistakes That Cost Italian Installers Money

1. 1
   Pricing export as though Scambio sul Posto still applied. It is closed to new systems. Surplus now earns a wholesale-linked Ritiro Dedicato price, a much smaller number, and a twenty-year revenue line built on the old assumption is simply wrong.
2. 2
   Netting the detrazione off the headline price. The customer pays in full on day one and recovers the deduction over ten annual instalments. Showing a discounted price misstates both the cash requirement and the payback year.
3. 3
   Sending a lump sum to a buyer who reads computi. Italian buyers compare quotes line by line. An unitemised total reads as concealment and loses to the competitor whose document shows structures, cables, labour, scaffolding and pratiche separately.
4. 4
   Leaving the GSE practice unassigned. Name who files the Ritiro Dedicato contract or the CER registration, what it costs and how long it takes. The argument about whose job it was always happens after commissioning, when the customer is waiting for money.
5. 5
   Quoting a national average specific yield. A number that flatters a roof in Bergamo and undersells one in Ragusa damages you in both directions. Model the site, state the method, and put the figure in the document.

The pattern across all five is the same: the document promised something the engineering or the paperwork could not support. Our note on common mistakes EPC companies make in rooftop solar covers the wider set, and a sizing sanity check on the string sizing calculator catches a surprising share of the technical ones.

Should You Standardise on One Platform?

Verdict. SurgePV is the right default for a growing Italian installatore because the Ritiro Dedicato pricing, the ten-year detrazione cash flow and the itemised preventivo are bundled and the engineering under the yield number is real. ACCA stays wherever a computo metrico priced against a regional prezzario is the deliverable, and a specialist platform stays wherever the project is a community rather than a roof. Everything else here is right for one shape of business and wrong for the others.

How Heaven Green Energy Helps

We run more than 10,000 installations and quote work every day, so we pick tools on what survives a customer meeting rather than on the brochure. If you are an Italian installer weighing a switch, these are the reference points worth reading next:

• Best solar design software in Italy covers CEI 0-21, NTC 2018 loads and the design side of the same tool set.
• Solar proposal software is the global version of this ranking without the Italian financial layer.
• Best solar proposal software in Germany shows the same problem under EEG and Mieterstrom rules.
• Best solar proposal software in the UK shows it under MCS and SEG.
• Solar design software pillar guide covers the category structure.
• Commercial solar and solar EPC services show how we use these outputs on live projects.
• Heaven Designs rooftop detailed engineering when the drawing package behind the quote is the bottleneck.

Bookmark the GSE for Ritiro Dedicato and CER rules, ARERA for the market framework, and the Agenzia delle Entrate for the current detrazione position before any number reaches a customer. Choosing the best solar proposal software in Italy comes down to which platform removes the most manual financial and documentation work at your real volume, and that answer differs at three preventivi a month and at fifty. You can compare SurgePV pricing against whatever you run today before starting a trial.

Compare Other Markets and Tool Categories

• Best solar the full software stack in Italy
• Best solar proposal software in Spain
• Best solar proposal software in France

Frequently Asked Questions

What is the best solar proposal software in Italy in 2026?

SurgePV ranks first for Italian installers sending five or more preventivi a month, at roughly EUR 1,180 per user per year on the 5-User Team plan. It prices export on a Ritiro Dedicato basis rather than the retired Scambio sul Posto, models the 50 percent detrazione as ten annual instalments in a dated cash flow, carries CER shared energy as a separate revenue line and exports an itemised Italian preventivo. For a computo metrico priced against a regional prezzario, ACCA remains the stronger document.

How should a proposal present the 50 percent detrazione fiscale?

As a deferred cash flow, never as a discount. The customer pays the full price on day one and recovers the deduction from income tax in ten equal annual instalments. Show the gross price, place each instalment in the year it lands, and state the capienza fiscale assumption in writing, because the instalment is only usable to the extent the customer owes that much tax that year. Netting the deduction off the headline price misstates both the cash requirement and the payback year.

Is Scambio sul Posto still available for new solar systems in Italy?

No. Scambio sul Posto is closed to new entrants. New systems sell surplus under Ritiro Dedicato, where the GSE buys exported energy at a wholesale-linked price, or through a market offtake contract. Self-consumed energy is therefore worth considerably more than exported energy, which changes optimal system size, strengthens the case for storage, and means any proposal template still carrying the old assumption overstates twenty-year revenue.

Why do Italian buyers expect such a detailed quote?

Because Italian construction practice runs on the computo metrico estimativo, a bill of quantities priced against a regional prezzario, and homeowners have absorbed that habit. They expect modules, inverter, storage, mounting structures, cables and switchboards, labour, scaffolding, administrative practice and VAT as separate lines, and they compare those lines across three quotes. A lump sum reads as concealment, so proposal software with one price field and a marketing paragraph loses to a document with fifteen rows.

What does a Comunità Energetica Rinnovabile proposal need that a normal quote does not?

A third revenue line. Alongside the self-consumption saving and the Ritiro Dedicato export, the community earns an incentive on shared energy, meaning the hourly overlap between member production and member consumption inside the area served by the same primary substation. The document has to state the coincidence assumption, the repartition rule dividing the incentive between members, and the perimeter check that confirms every member qualifies. A single-site template cannot express any of it.

Should the preventivo mention the GSE portal work?

Yes, and name who does it. The Ritiro Dedicato contract, CER registration and any residual incentive route run through GSE portal procedures with their own submission requirements and timelines. Stating who files, what it costs and roughly how long it takes turns a common post-commissioning argument into a line the customer already accepted, and it reassures a buyer who has heard from a neighbour that the paperwork is where projects stall.

How much does solar proposal software cost in Italy?

Most vendors bill in US dollars rather than an Italian price. OpenSolar’s core platform is free and its 2026 API and Connector rates are not published. SurgePV sits near EUR 1,180 per user per year on a five-seat team, US$1,299. Aurora is US$135 per user per month on Basic and US$220 on Premium billed annually, about EUR 123 to EUR 200. Solargraf starts at US$2,799 a year for two users and 240 projects and runs to US$12,999 Enterprise. Sunbase starts at US$59 per user per month and does not publish higher tiers. The Italian desktop products do not publish a price at all: neither Blumatica Fotovoltaico nor ACCA Solarius-PV with PriMus shows a figure on the vendor’s own page, so both are quote-only, and neither produces a sales-grade customer document.

Can I replace ACCA with a cloud proposal tool?

Only if none of your clients expect a computo metrico. SurgePV and its cloud peers itemise a quote, which satisfies a homeowner, but none of them price a bill of quantities against a regional prezzario, and that is the document a client’s engineer, a geometra or a public body will ask for. The realistic pattern in Italian firms is to keep ACCA for the jobs that need it and run a cloud platform for the residential sales motion, rather than attempting a full replacement.