Best Solar Proposal Software in Portugal (2026)

TL;DR: SurgePV is the best solar proposal software for Portugal in 2026 — integrating design, bankable simulations, and professional proposal generation with UPAC self-consumption economics and Portuguese tariff modeling in one platform at $1,499/user/year. OpenSolar is the best free alternative for small residential teams.

Speed wins solar deals. That’s not speculation.

In Portugal, residential customers request 3–8 quotes before signing. The installer who delivers a professional, accurate proposal within 24–48 hours wins. Everyone else is chasing.

Most Portuguese installers still build proposals manually. Design in one tool. Simulate in another. Export to Excel. Model UPAC self-consumption by hand. Calculate Fundo Ambiental subsidies separately. Paste everything into PowerPoint.

The result? One to two hours per proposal. Error-prone financial calculations. Generic-looking output that doesn’t build customer trust.

Meanwhile, Portugal’s solar market is accelerating. Over 4.5 GW installed capacity. Annual additions of 1.2–1.5 GW. Residential installations growing 30–40% year-over-year (SolarPower Europe). The UPAC self-consumption regime (DL 162/2019) and rising electricity prices (0.18–0.25 EUR/kWh residential, per ERSE) are driving demand that manual workflows can’t sustain.

The right solar proposal software in Portugal automates UPAC economics, generates professional EUR-denominated proposals, and cuts turnaround from hours to minutes.

We tested the top 5 proposal platforms specifically for the Portuguese market — referencing regulatory data from DGEG, industry standards from APESF, and grid requirements from REN — evaluating UPAC financial modeling, proposal quality, design integration, speed, and cost.

In this guide, you’ll learn:

Which platforms model UPAC self-consumption and Portuguese tariffs accurately
How proposal quality and speed compare across tools
What a professional Portuguese solar proposal must include
Our recommendation based on hands-on testing and 500+ commercial projects

Our Top Solar Proposal Software Picks for Portugal (2026)

SurgePV — Best integrated design-to-proposal platform with Portuguese financial modeling
Aurora Solar — Best visual proposals for enterprise teams
OpenSolar — Best free proposal tool for small installers
PVsyst + Manual Templates — Best for bankable reports requiring manual proposal assembly
Excel + Templates — Baseline manual approach still used widely

Solar Proposal Software Comparison Table for Portugal

Feature	SurgePV	Aurora Solar	OpenSolar	PVsyst + Manual	Excel Templates
UPAC Economics	Yes (automated)	Basic	Basic	Manual export	Manual calculation
Multi-Tariff Modeling	bi/tri-horario	Limited	Limited	Manual	Manual
Design Integration	Full (same platform)	Full	Full	No (simulation only)	None
Proposal Speed	15–20 min	20–30 min	15–25 min	1–3 hours	1–2 hours
Output Format	Web + PDF	Web + PDF	Web + PDF	PDF (simulation)	PDF/PPT
Battery Storage ROI	Yes	Basic	Basic	Yes (manual)	Manual
Subsidy Calculator	Yes	No	No	No	Manual
EUR Pricing	Yes	AUD/USD	Yes	CHF	Yes
Annual Cost	$1,499/user/yr	$3,108+/yr	Free	~EUR 1,500/yr + labor	Free–EUR 500

Pro Tip

In Portugal’s competitive residential market, the first installer to deliver a professional, accurate proposal often wins the contract. SurgePV’s integrated design-to-proposal workflow cuts delivery time to 15–20 minutes — compared to 1–2 hours for manual approaches.

Best Solar Proposal Software in Portugal: Detailed Reviews

SurgePV — Best Integrated Design-to-Proposal Platform

Best For: Portuguese EPCs and installers needing end-to-end design + proposal workflows with UPAC economics built in

Pricing: $1,499/user/year (approximately EUR 1,399). All features included — design, simulation, SLD generation, proposals, financial modeling.

Onboarding: 2–3 weeks

SurgePV is the only platform where Portuguese installers can design a system, run bankable simulations, and generate a professional customer proposal without leaving the application.

UPAC financial modeling runs automatically. When you finish designing a system in SurgePV’s design tools, the platform already knows the array size, energy production, and shading losses. It feeds those numbers directly into the proposal — modeling self-consumption versus wholesale market injection at current rates (50–80 EUR/MWh per ERSE), calculating savings across simples, bi-horario, and tri-horario tariff structures, and projecting payback periods. No data re-entry. No spreadsheet errors. No wasted time.

Portuguese tariff modeling covers all three ERSE-regulated rate structures. For residential customers on bi-horario (two-period) tariffs, the platform models peak and off-peak self-consumption separately — critical because the difference between consuming your own solar energy during peak hours versus off-peak hours can shift ROI calculations by 15–25%.

Subsidy integration includes Fundo Ambiental calculations (Fundo Ambiental). Proposals automatically show pre-subsidy and post-subsidy payback periods, helping residential customers see the true cost of their solar investment after government incentives.

Proposal output is professional. Interactive web-based proposals (shareable link, mobile-friendly) or PDF export. EUR-denominated pricing with detailed line items, reduced VAT (6% IVA) for residential, and BOM generated from the actual design geometry — not estimates.

Speed: 15–20 minutes from completed design to finished proposal. One click. No copy-paste errors, no formatting headaches, no separate proposal software license. For teams handling 20+ proposals per week, this is the difference between winning and losing in a market where customers collect 3–8 competitive quotes.

Simulation accuracy: Bankable P50/P90 metrics within +/-3% of PVsyst, backed by 70,000+ projects globally. Portuguese banks are increasingly accepting SurgePV reports for commercial financing. Your proposals include the bankability data lenders actually require — not just optimistic P50 estimates that get questioned during due diligence.

Pros:

Integrated design-to-proposal (no tool switching)
UPAC self-consumption and Portuguese tariff modeling
Fundo Ambiental subsidy calculations in proposals
Professional web + PDF output, EUR-denominated
15–20 minute turnaround from design to proposal
3-minute average support response, 2–3 week onboarding

Cons:

Newer brand in Portugal vs established tools
Subscription model (no perpetual license)
Portuguese language templates still evolving

Real-World Example

A residential installer in the Lisbon metropolitan area generating 80+ proposals per month was juggling three tools — design software, simulation software, and spreadsheets for financials. Each proposal took 3–4 hours. With SurgePV’s unified workflow, that dropped to 45 minutes per proposal. Same-day proposals instead of next-week follow-ups. Their close rate improved because in solar sales, speed wins deals.

Aurora Solar — Best Visual Proposals for Enterprise Teams

Best For: Large residential installation companies with enterprise budgets prioritizing visual proposal quality

Pricing: $259/user/month (monthly) or approximately $220/user/month (annual)

Aurora Solar produces some of the most visually polished solar proposals in the industry. The 3D visualization capabilities are strong, and the customer-facing experience is designed to close residential deals.

Strengths: Beautiful, interactive proposals with 3D roof renderings. Native Salesforce and HubSpot CRM integration for sales pipeline management. Fast design workflows for residential rooftops.

Where Portuguese teams hit friction: UPAC economics modeling is basic. Aurora doesn’t include Portuguese-specific wholesale market injection pricing or multi-tariff period analysis. Installers must calculate UPAC self-consumption savings separately in Excel and add them manually to proposals. No SLD generation — commercial EPCs need AutoCAD ($2,000/year per user) alongside Aurora. No Fundo Ambiental subsidy calculator.

Best for: Large Portuguese residential installation companies with enterprise budgets that prioritize visual proposal quality and CRM integration over Portuguese-specific financial modeling. See our detailed Aurora Solar review.

OpenSolar — Best Free Proposal Tool

Best For: Small residential installers on tight budgets doing fewer than 15–20 proposals per month

Pricing: Free for installers

OpenSolar gives small Portuguese residential installers a way to generate basic proposals without licensing fees. For teams doing fewer than 15–20 proposals per month with simple residential projects, it’s hard to argue against free.

Strengths: Free for installers (partnership model). Easy to learn — most teams are productive within 1–2 weeks. Cloud-based with basic design and proposal generation. Fast for simple residential projects.

Limitations: Basic financial modeling — no UPAC-specific self-consumption optimization, no multi-tariff analysis, no subsidy calculators. Basic simulation quality (not accepted by Portuguese banks for financing). No SLD generation.

You’ll outgrow OpenSolar the moment you need bankable simulation reports, UPAC economics modeling, or electrical documentation for commercial projects. But as a starting point, it’s solid. Read our full OpenSolar review.

PVsyst + Manual Proposal Workflow

Best For: Portuguese EPCs that already own PVsyst and build proposals for utility-scale projects

Pricing: CHF 1,100 (~EUR 1,150) perpetual license + CHF 350/year for updates. Plus labor cost for manual proposal creation.

PVsyst produces the gold-standard simulation reports that every Portuguese lender accepts. But PVsyst does not generate customer proposals.

The workflow: simulate in PVsyst (desktop only). Export the data. Open Excel. Build your financial model. Calculate UPAC self-consumption manually. Add Fundo Ambiental subsidies. Format everything in Word or PowerPoint. Total time: 1–3 hours per proposal for an experienced team.

Simulation quality: Unmatched. P50/P75/P90/P99 probability distributions. Granular loss analysis. 30+ years of industry validation. Every Portuguese bank accepts PVsyst reports (PVsyst official).

Proposal quality: Depends entirely on your Excel and PowerPoint skills. No standardized, professional output.

Best for: Portuguese EPCs that already own PVsyst and build proposals manually — primarily for utility-scale projects where proposal speed matters less than simulation depth.

Excel + Manual Templates — The Baseline

Best For: Very small installers handling fewer than 5 proposals per month

Pricing: Free (Microsoft Office) to EUR 100–500 for purchased templates

Many small Portuguese installers still build proposals from scratch using Excel spreadsheets and Word/PowerPoint templates. It’s free. It’s flexible. And it’s remarkably slow.

Strengths: No software cost. Full customization. Familiar tools.

Limitations: 1–2 hours per proposal. Error-prone (formula mistakes, outdated tariff data). Unprofessional appearance. Not scalable beyond 5–10 proposals per month. No integration with design tools (manual data entry from scratch).

In a market where customers compare 3–8 quotes, a generic Excel proposal loses to a professional, interactive SurgePV or Aurora Solar proposal almost every time. The investment in proper proposal software pays for itself within the first month for most teams.

Close More Portuguese Solar Deals with Faster Proposals

UPAC economics, Fundo Ambiental subsidies, and professional EUR-denominated proposals — all from one integrated platform.

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Why Most Portuguese Installers Lose Deals on Proposal Speed

Portugal is not the US. Or Germany. Or Australia. The proposal requirements here are specific, and generic international platforms miss critical details.

UPAC Economics — The Non-Negotiable

Every Portuguese solar proposal must accurately model self-consumption versus grid injection under the UPAC regime (DL 162/2019, DGEG).

Self-consumed energy saves the customer 0.18–0.25 EUR/kWh (retail rate). Excess injected energy earns only 0.05–0.08 EUR/kWh (wholesale rate). That 3–5x difference means proposal accuracy depends entirely on how well the software predicts the self-consumption ratio.

SurgePV automates this calculation based on actual load profiles and system design. Aurora Solar and OpenSolar offer only rough estimates.

Multi-Tariff Period Analysis

Portuguese consumers choose between three ERSE-regulated tariff structures:

Simples: Flat rate (one price, all hours)
Bi-horario: Two periods (peak and off-peak)
Tri-horario: Three periods (peak, intermediate, off-peak)

A proposal showing savings on a simples tariff when the customer is on tri-horario will be inaccurate by 10–20%. SurgePV models all three structures. Most competitors require manual calculation.

Subsidy and Incentive Integration

The Fundo Ambiental (Fundo Ambiental) provides subsidies for residential solar + storage installations. Reduced VAT (6% IVA vs 23% standard) applies to residential solar.

Proposals that show pre-subsidy and post-subsidy payback periods convert better because customers see the true out-of-pocket cost. SurgePV includes this. Aurora Solar and OpenSolar do not.

Battery Storage ROI

An estimated 40–50% of new Portuguese residential systems include battery storage. Proposal software must model how batteries increase self-consumption ratios (from 30–40% to 60–80%), shifting more energy consumption to solar and reducing grid injection at lower wholesale rates.

SurgePV models battery storage ROI directly in proposals. PVsyst can simulate battery impact but requires manual proposal assembly.

Design Integration — The Speed Multiplier

When proposal software is separate from design software, every proposal requires manual data transfer. System size, energy production, shading losses, BOM quantities — all re-entered by hand. Every re-entry is a chance for error and wasted time.

SurgePV’s design tools pull all design data directly into proposals. No re-entry. No errors. The bill of materials comes from actual design geometry — not estimates. For Portuguese teams handling 20+ proposals per week, this single feature saves 5–10 hours weekly.

Use Case Comparison

Your Use Case	Best Software	Why	Alternative
High-volume residential installer	Aurora Solar or SurgePV	Aurora: best proposals. SurgePV: proposals + engineering	Solargraf
C&I EPC (100+ kW)	SurgePV	Integrated design + proposals + SLDs in one tool	HelioScope + PVsyst combo
Storage + solar specialist	Energy Toolbase	Best financial modeling for battery + solar	SurgePV for design integration
Projects requiring Portugal lender financing	PVsyst or SurgePV	P50/P90 bankability reports accepted by lenders	HelioScope (some lenders)
Startup installer (<30 projects/year)	OpenSolar or SurgePV	OpenSolar: free entry. SurgePV: more features	Free tools + outsourced engineering

Our Testing Methodology

We evaluated each platform on five Portugal-specific criteria:

UPAC economics modeling (30% weight): Self-consumption vs injection accuracy, multi-tariff support, battery storage ROI
Proposal quality and professionalism (25%): Visual design, mobile-friendly output, Portuguese language support, subsidy visualization
Design integration (20%): Single-platform workflow, BOM accuracy from design, no manual data entry
Financial completeness (15%): Fundo Ambiental subsidies, reduced VAT, payback/IRR/NPV calculations, cash vs loan comparison
Speed and automation (10%): Time to generate proposal, template reuse, email delivery

Testing included sample proposals for residential projects in Lisbon (3–6 kW), commercial projects in Porto (100–500 kW), and utility-scale projects in the Alentejo region.

Use our solar ROI calculator to estimate your specific savings from switching to integrated proposal software.

All pricing verified against official sources as of February 2026. Prices may have changed since publication.

Bottom Line: Best Solar Proposal Software for Portugal

If you need integrated design + proposals with Portuguese financial modeling: SurgePV is the clear choice. UPAC economics, multi-tariff analysis, Fundo Ambiental subsidies, and professional proposals — all from one platform at $1,499/user/year. Proposals go from 1–2 hours to 15–20 minutes, and accuracy improves because data flows from design to proposal automatically.

If you’re a large enterprise team prioritizing visual polish: Aurora Solar delivers beautiful proposals with strong CRM integration. Budget for the premium pricing ($3,108+/year) and manual UPAC calculations.

If you’re a small residential installer just starting out: OpenSolar is free and functional. You won’t get UPAC-specific modeling or bankable reports, but you’ll have a professional step up from Excel.

If you need bankable reports above all else: Use PVsyst for simulation, but invest in SurgePV for the proposal workflow. The combination gives you gold-standard bankable reports and professional customer-facing proposals without the 1–3 hour manual assembly.

Portugal’s solar market isn’t slowing down. The installers winning deals today are the ones with professional proposals and accurate financials on the customer’s table same-day. Manual proposal workflows don’t scale. The teams investing in proposal automation now will capture disproportionate market share over the next 2–3 years.

Book a free demo — see how SurgePV handles UPAC economics and Portuguese tariff modeling with your actual project data. See transparent pricing — all features included, no hidden tiers.

Frequently Asked Questions

What is the best solar proposal software in Portugal?

SurgePV is the best solar proposal software for Portugal in 2026. It combines design, simulation, and proposal generation with UPAC self-consumption modeling, Portuguese financial calculations, and professional EUR-denominated proposals in one platform at $1,499/user/year. The integrated workflow means proposals pull data directly from your design — eliminating manual data entry, reducing errors, and cutting proposal time to 15–20 minutes.

Can proposal software model UPAC self-consumption economics?

Yes. SurgePV models UPAC self-consumption economics including wholesale market injection pricing (50–80 EUR/MWh), multi-tariff period analysis (bi-horario, tri-horario), and battery storage ROI per DL 162/2019 requirements (DGEG). Accurate UPAC modeling is critical because the difference between self-consumed energy (0.18–0.25 EUR/kWh) and grid-injected energy (0.05–0.08 EUR/kWh) directly affects customer payback calculations.

How fast can you generate a solar proposal in Portugal?

With SurgePV, proposals take 15–20 minutes from design completion. OpenSolar delivers basic proposals in 15–25 minutes. Manual Excel workflows take 1–2 hours. In Portugal’s competitive market where installers submit 3–8 quotes per project, speed matters. The first professional proposal often wins the deal.

How much does solar proposal software cost in Portugal?

Solar proposal software in Portugal ranges from free (OpenSolar) to EUR 6,000+/year (Aurora with enterprise features). SurgePV costs $1,499/user/year for integrated design plus proposals. PVsyst costs approximately EUR 1,500/year but requires manual proposal assembly.

Can proposal software calculate Fundo Ambiental subsidies?

SurgePV includes government incentive calculators that factor Portuguese Fundo Ambiental subsidies (Fundo Ambiental) into customer proposals. Proposals automatically show pre-subsidy versus post-subsidy payback periods and ROI, helping customers understand true investment costs.

What should a solar proposal include in Portugal?

A professional solar proposal in Portugal must include: system design specifications with 3D visualization, UPAC self-consumption analysis, electricity savings by tariff period (simples, bi-horario, or tri-horario), payback period with subsidy calculations, detailed BOM with VAT breakdown (6% reduced rate for residential), equipment warranties, and E-REDES compliance documentation.

Which software supports Portuguese language proposals?

SurgePV and OpenSolar offer customizable proposal templates configurable for Portuguese language output. Aurora Solar is primarily English-focused with limited Portuguese support. For the Portuguese residential market, proposals in Portuguese are essential for customer trust and conversion rates.

Does proposal software support Portuguese electricity tariffs?

SurgePV includes Portuguese electricity tariff modeling with support for simples (flat rate), bi-horario (two-period), and tri-horario (three-period) tariff structures regulated by ERSE. This enables accurate savings calculations by time-of-use period — critical for customers on multi-tariff plans.

Sources

DGEG (Direcao-Geral de Energia e Geologia) — UPAC/UPP regulations, SERUP registration portal: https://www.dgeg.gov.pt
ERSE (Entidade Reguladora dos Servicos Energeticos) — Portuguese electricity tariffs: https://www.erse.pt
E-REDES — Portuguese distribution system operator, grid connection standards: https://www.e-redes.pt
Fundo Ambiental — Government subsidies for residential solar + storage: https://www.fundoambiental.pt
SolarPower Europe — European solar market statistics: https://www.solarpowereurope.org
PVGIS (EU Science Hub) — Solar irradiation data for Portugal: https://re.jrc.ec.europa.eu/pvg_tools/
IEA PVPS — International Energy Agency Photovoltaic Power Systems: https://iea-pvps.org
Aurora Solar — Competitor pricing page: https://aurorasolar.com/pricing/
PVsyst Official — Competitor pricing and features: https://www.pvsyst.com