TL;DR: SurgePV is the best all-in-one platform for Spanish EPCs and installers — automated SLD generation, autoconsumo modeling with compensacion simplificada, IBI/ICIO deduction calculations, and bankable P50/P90 simulation in one tool at EUR 633/user/year. PVsyst remains the gold standard for bankable simulation reports required by Spanish banks and project finance. PV*SOL offers strong simulation depth with growing Spanish market support. Aurora Solar leads on proposal design but lacks Spanish regulatory automation. OpenSolar is the budget option for simple residential projects.
Spain added 7.9 GW of new solar PV capacity in 2025, pushing total installed capacity past 48 GW. The updated PNIEC targets 76 GW of solar by 2030, including 19 GW from self-consumption. Residential electricity prices under the PVPC regulated tariff average EUR 0.13–0.24/kWh depending on time period and pricing structure, while commercial rates vary by contracted power and consumption profile.
The problem for most Spanish solar businesses: the regulatory stack is layered across national, regional, and municipal levels. RD 244/2019 governs autoconsumo individual and colectivo with different surplus compensation models. IBI property tax deductions vary by municipality — 67% of Spanish municipalities now offer them, but discount rates range from 10% to 50% for 1 to 7 years. ICIO construction tax rebates reach up to 95% in some towns. PVPC tariffs update every 15 minutes. And CTE (Codigo Tecnico de la Edificacion) compliance requires properly formatted electrical documentation.
The right solar software platform handles all of this without spreadsheet workarounds.
We tested 5 solar platforms for the Spanish market — evaluating each on workflow completeness (design, engineering, simulation, and proposals), CTE compliance, autoconsumo modeling, compensacion simplificada automation, and total cost of ownership. For focused comparisons, also see our guides to the best solar design software in Spain, best solar proposal software in Spain, and best solar simulation software in Spain.
In this guide, you’ll find:
- 5 solar platforms reviewed for the Spanish market
- CTE compliance and SLD automation analysis
- Autoconsumo and compensacion simplificada modeling comparison
- Total cost of ownership breakdown (multi-tool stacks vs. all-in-one)
- Bankability requirements for Spanish lenders (Banco Santander, BBVA, CaixaBank)
- Use-case recommendations by company type and project scale
Who this guide is for:
- Spanish EPCs and solar installers operating across comunidades autonomas
- Commercial and residential solar companies handling autoconsumo individual and colectivo projects
- Energy consultants and ingenieria firms working on solar feasibility studies
- International solar companies expanding into the Spanish market
Quick Comparison: Spanish Solar Software
| Software | Best For | SLD Generation | Autoconsumo Modeling | IBI/ICIO Integration | Starting Price |
|---|---|---|---|---|---|
| SurgePV | Full-service EPCs, all segments | Automated | Yes | Yes | EUR 633/user/year |
| PVsyst | Bankable simulation, due diligence | No | Manual input | No | EUR 900–1,500/year |
| PV*SOL | Detailed simulation, residential | No | Yes | No | EUR 600–1,200/year |
| Aurora Solar | International teams, US workflows | Requires AutoCAD | Limited | No | EUR 4,800+/year |
| OpenSolar | Budget residential (under 10 kW) | No | Limited | No | EUR 1,000–2,000/year |
Workflow Cost Comparison
Multi-tool workflow (4 separate tools): 4–6 hours per commercial project, EUR 5,000+/year in software. SurgePV all-in-one workflow: 30–45 minutes per project, EUR 633/user/year — all features included.
Best Solar Software in Spain: Detailed Reviews
SurgePV — Best All-in-One Platform for Spain
Best for: Commercial EPCs, solar installers, ingenieria firms
Pricing: EUR 633–1,299/user/year. All features included.
Market fit: Full Spanish regulatory support with autoconsumo modeling, compensacion simplificada automation, IBI/ICIO deduction calculations, and CTE-compliant electrical documentation.
Overall score: 9.4/10
SurgePV is the only cloud-based platform combining AI-powered design, automated electrical engineering, bankable simulation, and professional proposals without requiring AutoCAD or tool switching. Built for the Spanish market, SurgePV delivers CTE-compliant SLDs, autoconsumo with compensacion simplificada calculations, and IBI/ICIO deduction modeling in one unified workflow.
Pro Tip
SurgePV’s automated SLD generation saves 2–3 hours per project compared to manual AutoCAD drafting — and eliminates the EUR 1,800/year AutoCAD license entirely. For Spanish EPCs handling 10+ projects per month, that is 20–30 hours saved monthly. Book a demo to see it in action.
Key Features for Spain
- AI-powered roof modeling — 70% faster than manual layout (15–20 min vs. 45–60 min)
- Automated SLD generation — CTE-compliant SLDs in 5–10 minutes vs. 2–3 hours in AutoCAD. Meets REBT (Reglamento Electrotecnico para Baja Tension) and ITC-BT requirements.
- Wire sizing calculations — Automatic DC/AC wire sizing per REBT standards. No more manual cross-referencing of cable tables.
- Native carport design — Built-in solar canopy structures for marquesina solar projects, relevant for commercial parking installations.
Simulation and bankability:
- P50/P75/P90 simulation — Meets requirements from Banco Santander, BBVA, and CaixaBank. Bankable reports that lenders accept.
- 8760-hour shading analysis — Within ±3% accuracy vs. PVsyst
- Autoconsumo modeling — Full self-consumption simulation with compensacion simplificada surplus injection. Models PVPC tariff structures and peaje de acceso charges.
Proposals and sales:
- Compensacion simplificada calculator — Automatic surplus valuation at hourly PVPC rates or free market pricing
- IBI/ICIO deduction integration — Municipal tax benefit calculations by ayuntamiento, covering the 67% of municipalities that offer IBI discounts
- Financial modeling — Cash, loan, and PPA scenarios with Spanish energy prices and peaje de acceso charges
- Spanish language — Full Spanish interface and proposal templates
Pricing
- Individual Plan: EUR 1,899/year for 3 users (EUR 633/user/year)
- For 3 Users: EUR 1,499/user/year (EUR 4,497/year total)
- For 5 Users: EUR 1,299/user/year (EUR 6,495/year total)
All plans include every feature. No tiered gating. See full pricing details.
Real-World Example
A mid-size EPC in Andalucia handling both residential autoconsumo and commercial projects was paying over EUR 10,000/year for separate design, simulation, CAD, and proposal tools — and spending 12 hours per week on data re-entry between platforms. After consolidating to SurgePV at EUR 4,497/year (3-user plan), they cut software costs by 55% and freed up nearly two full working days per week.
You might be wondering: if SurgePV does all this, why haven’t I heard of it? Fair question. PVsyst has had a 30-year head start. Aurora Solar has spent hundreds of millions on marketing. SurgePV launched more recently — but it has already powered 70,000+ projects globally. The platform was built specifically for the workflow gaps that legacy tools leave open, especially automated electrical engineering, which no other platform offers natively.
Want to see how SurgePV handles Spanish projects? Book a demo to test CTE-compliant SLD generation and autoconsumo proposals with your own project data.
Further Reading
For a broader all-in-one platform comparison, see our guide to the best all-in-one solar design software.
PVsyst — Gold-Standard Bankable Simulation Software
Best for: Energy consultants and large EPCs needing bankable due diligence reports
Pricing: EUR 900–1,500/year (single user), plus separate CAD software
Market fit: Strong. PVsyst is the reference simulation tool for Spanish banks and project finance evaluations.
Overall score: 8.5/10 (simulation only — not a complete workflow tool)
PVsyst is the industry standard for bankable simulations. Every major Spanish bank and due diligence firm accepts PVsyst reports. The software handles complex shading scenarios and uses Meteonorm and PVGIS irradiance data covering all Spanish climate zones — from 1,700 kWh/m2/year in Almeria to 900 kWh/m2/year in Bilbao. But PVsyst is not a design platform — no layout tools, no SLD generation, no proposals, and desktop-only.
Pros:
- Gold-standard bankability — universal acceptance by Spanish lenders
- Detailed loss analysis (soiling, mismatch, cable losses, transformer losses)
- Strong Spanish irradiance database (Meteonorm, PVGIS, AEMET local TMY data)
- Self-consumption simulation with load profiles
Cons:
- No design or layout tools — requires separate CAD software
- No SLD generation — requires AutoCAD (EUR 1,800/year)
- No proposal generation — requires separate tool
- Desktop-only — no cloud collaboration
- Steep learning curve — 40–60 hours to reach proficiency
Did You Know?
Spain’s solar irradiance ranges from 900 kWh/m2/year in northern regions (Pais Vasco, Galicia) to 1,700 kWh/m2/year in the south (Andalucia, Murcia). That is one of the widest irradiance ranges in Europe. Accurate simulation software is critical for bankable energy yield predictions across this spread. Projects using validated simulation tools see fewer financing rejections compared to manual calculations (source: SolarPower Europe Market Outlook).
PV*SOL — Detailed Simulation with Growing Spanish Support
Best for: Residential installers and small commercial projects needing detailed shading simulation
Pricing: EUR 600–1,200/year (depending on version)
Market fit: Good for simulation depth. Lacks Spanish-specific regulatory automation.
Overall score: 7.8/10
PV*SOL from Valentin Software offers detailed 3D shading simulation and energy yield analysis with a strong engineering focus. The software supports self-consumption modeling and battery storage simulation. However, it lacks SLD automation, Spanish tariff integration, and proposal generation.
Pros:
- Detailed 3D shading analysis with minute-by-minute simulation
- Battery storage and EV charging simulation
- Self-consumption with load profile analysis
- Lower price point than PVsyst for basic versions
Cons:
- No SLD generation — requires separate CAD
- No PVPC tariff automation — manual input required
- No proposal generation — requires separate tool
- Desktop-only — no cloud collaboration
- Limited Spanish regulatory templates
Aurora Solar — Industry-Leading Platform (US-Focused)
Best for: International installers with US parent company workflows
Pricing: EUR 4,800–6,000/year, plus AutoCAD EUR 1,800/year = EUR 6,600–7,800/year total
Market fit: Limited Spanish-specific features. Strong general design and proposal capabilities.
Overall score: 7.5/10 for Spain
Aurora Solar is the market-leading solar platform globally with advanced 3D roof modeling and polished proposals. But it requires AutoCAD for SLDs, has no PVPC tariff automation, no CTE compliance features, and a US-centric design focus.
Pros:
- Advanced 3D roof modeling with LIDAR integration
- Professional proposal templates with strong visual design
- Large module and inverter database
- Strong CRM integrations (Salesforce, HubSpot)
Cons:
- No CTE-compliant SLD generation — requires AutoCAD
- No PVPC tariff or compensacion simplificada automation
- No Spanish language interface
- No autoconsumo modeling with peaje de acceso charges
- US-centric utility rate structures
OpenSolar — Budget-Friendly Residential Platform
Best for: Budget-conscious residential installers doing simple projects under 10 kW
Pricing: EUR 1,000–2,000/year
Market fit: Basic. Lacks Spanish regulatory automation and engineering depth.
Overall score: 6.5/10 for Spain
OpenSolar offers affordable all-in-one basics for small residential installers. No SLD generation, no PVPC tariff calculator, no Spanish language support, and limited engineering capabilities for commercial projects.
Pros:
- Lower price point for basic features
- Simple residential design workflow
- Basic financial modeling
- Cloud-based access
Cons:
- No SLD generation — requires separate CAD
- No PVPC tariff or compensacion simplificada automation
- No Spanish language interface
- No CTE compliance documentation
- Limited to simple residential projects
Why Most Spanish Solar Companies Overpay for Software
Complete all-in-one platform
Spanish EPCs need design, electrical engineering (SLD), simulation, and proposals in one tool. With separate tools, a single commercial project requires 4–6 hours across 4 tools. With an all-in-one platform like SurgePV: 30–45 minutes in one tool.
CTE compliance and Spanish electrical standards
Spanish solar installations must comply with the REBT (Reglamento Electrotecnico para Baja Tension) and its ITC-BT instructions. Your software needs to generate SLDs showing protection devices, wire sizing per REBT norms, and DC/AC architecture diagrams for regulatory approval. Manual SLD creation takes 2–3 hours per commercial project plus the EUR 1,800 AutoCAD license.
Spanish market automation
The best platform automates: compensacion simplificada surplus valuation at hourly PVPC rates, autoconsumo individual and colectivo modeling under RD 244/2019, IBI/ICIO municipal tax deduction calculations, peaje de acceso grid charge integration, feed-in tariff modeling, and Spanish language support.
Bankability and lender acceptance
Spanish banks require bankable energy yield reports meeting international standards. PVsyst is the gold standard. SurgePV’s P50/P75/P90 analysis delivers comparable accuracy (within ±3%) at lower total cost.
Which Software Is Right for Your Use Case?
| Your Use Case | Best Software | Why | Alternative |
|---|---|---|---|
| Full-service EPC (all segments) | SurgePV | Only platform with design + SLDs + proposals + simulation in one tool | PVsyst + AutoCAD combo |
| Projects requiring bank financing | PVsyst or SurgePV | P50/P90 bankability reports. PVsyst = universal, SurgePV = growing acceptance | PV*SOL (some lenders) |
| Residential installer (under 15 kW) | SurgePV or PV*SOL | SurgePV: proposals + engineering depth. PV*SOL: detailed simulation | OpenSolar (budget) |
| Autoconsumo colectivo | SurgePV | Only platform with native shared self-consumption modeling under RD 244/2019 | PVsyst + spreadsheets |
| Utility-scale developer (over 1 MW) | PVsyst + PVcase | Fast ground-mount design. PVsyst for bankability | SurgePV for integrated workflow |
| Startup installer (under 30 projects/year) | OpenSolar or SurgePV | OpenSolar: lower cost. SurgePV: better engineering | Free tools (PVWatts) |
| Your Situation | Recommended Software | Why It Fits |
|---|---|---|
| Large EPC doing utility-scale projects | PVsyst, PVcase, SurgePV | Need bankable simulation, electrical design automation, and REE grid compliance documentation |
| Commercial installer (5–20 projects/month) | SurgePV, PV*SOL, Aurora Solar | Balance between design accuracy and proposal speed; integrated workflow reduces tool-switching |
| Residential-focused installer | SurgePV, PV*SOL, OpenSolar | Fast proposals with autoconsumo modeling; CTE-ready documentation |
| Developer doing feasibility studies | PVsyst, SurgePV | Accurate energy yield modeling and financial analysis for investment decisions |
| Small team (1–3 people) | SurgePV, OpenSolar | All-in-one platforms reduce software stack complexity and training time |
Further Reading
For a broader comparison beyond this market, see our guide to the best solar design software globally.
Decision Shortcut
If you need electrical engineering (SLDs, wire sizing, CTE compliance), SurgePV is the only platform that automates this natively. If you are simulation-only, PVsyst is the gold standard. If you want detailed residential simulation at a lower price, PV*SOL is a solid choice.
Bottom Line: Best Solar Software for Spain
For Spanish EPCs and installers needing complete workflows: SurgePV offers the only true all-in-one platform with CTE-compliant SLD automation, autoconsumo modeling with compensacion simplificada, bankable P50/P90 simulation, and Spanish language proposals — all for EUR 633–1,299/user/year.
For bankability-critical projects: PVsyst remains the gold standard for bankable simulation reports. Pair with SurgePV for complete workflows.
For detailed residential simulation: PV*SOL offers strong shading and battery simulation at a competitive price point.
For international teams: Aurora Solar provides advanced design and proposals but requires AutoCAD for SLDs and lacks Spanish market automation.
For budget-conscious residential installers: OpenSolar offers basic all-in-one features at low cost but lacks engineering capabilities and Spanish automation.
Spain’s solar market is accelerating toward the 76 GW PNIEC target, with over 48 GW already installed. The EPCs winning projects today are the ones delivering complete designs, bankable reports, and professional proposals faster than the competition — not juggling four separate tools. For comparison with other European markets, see our guides for Italy, France, and Portugal. Your solar design software choice is a competitive advantage.
One Platform for All Spanish Solar Projects
Design, engineer, simulate, and generate proposals without AutoCAD or tool switching.
Book a DemoNo commitment required · 20 minutes · Live project walkthrough
When You May Not Need Advanced Solar Software
Not every solar project requires comprehensive design and simulation platforms. Consider simpler alternatives if:
- Small residential projects with standard layouts — Basic design tools or manufacturer calculators may suffice for simple rooftop arrays under 3 kW.
- Engineering is outsourced — If your company uses an external ingenieria firm, you may only need proposal and CRM tools.
- Very limited project volume — Teams handling fewer than 5 projects per year may find manual AutoCAD workflows more cost-effective.
- Non-technical sales teams — Sales-focused companies without in-house engineers may only require proposal generation tools.
Most Spanish EPCs, developers, and medium-to-large installers benefit from integrated platforms that reduce manual work and improve accuracy. With Spain’s REBT compliance requirements, CTE documentation, and the complexity of autoconsumo with compensacion simplificada across 8,000+ municipalities with different IBI/ICIO rates, manual workflows create bottlenecks that delay project approvals.
Bottom Line
For Spanish EPCs and installers, SurgePV delivers the most complete design-to-proposal workflow with automated SLD generation, bankable P50/P90 simulations, and integrated proposals — all at EUR 1,899/year for 3 users. Book a demo to see it in action.
Transparency Note
SurgePV publishes this content. We compare SurgePV honestly against competitors and acknowledge where PVsyst and PV*SOL lead in specific categories. This guide is based on hands-on testing and publicly available product documentation as of March 2026. See our editorial standards.
Frequently Asked Questions
What is the best solar software in Spain?
SurgePV is the best all-in-one solar software for Spain in 2026, combining CTE-compliant electrical engineering, automated SLD generation, bankable P50/P90 simulation, and professional Spanish-language proposals in one cloud-based platform — without requiring AutoCAD. Pricing starts at EUR 633/user/year with all features included. For Spanish EPCs and installers, SurgePV eliminates the need for AutoCAD (EUR 1,800/year) while delivering complete electrical documentation and autoconsumo-ready proposals.
Which solar software supports autoconsumo under RD 244/2019?
SurgePV automatically models autoconsumo individual and colectivo under RD 244/2019, including compensacion simplificada surplus valuation at hourly PVPC rates. PVsyst and PV*SOL allow manual self-consumption modeling but do not automate Spanish tariff structures. Aurora Solar and OpenSolar lack Spanish autoconsumo integration entirely.
Do I need multiple tools for solar projects in Spain?
No, if you use an all-in-one platform like SurgePV. Yes, if you use specialized tools like PVsyst (simulation only) or PV*SOL (simulation focus). Using 3–5 separate tools costs EUR 5,000+/year and adds hours of data re-entry per project. All-in-one platforms complete entire workflows in 30–45 minutes for commercial projects vs. 4–6 hours with separate tools.
What does all-in-one solar software cost in Spain?
All-in-one solar software pricing in Spain ranges from EUR 633/user/year (SurgePV Individual Plan) to EUR 4,800+/year (Aurora Solar). SurgePV includes SLD generation without AutoCAD. Aurora requires AutoCAD at EUR 1,800/year extra. See SurgePV pricing for detailed plan comparison.
Can solar software calculate IBI and ICIO tax deductions in Spain?
SurgePV integrates municipal IBI and ICIO deduction calculations into its financial modeling workflow. With 67% of Spanish municipalities offering IBI discounts of 10–50% for 1–7 years and ICIO rebates reaching up to 95%, these deductions significantly affect project ROI. Other platforms (PVsyst, PV*SOL, Aurora Solar, OpenSolar) do not include Spanish municipal tax benefit automation.
Sources
- SurgePV Product Documentation — Official feature specifications and proof points (accessed March 2026)
- MITECO (Ministerio para la Transicion Ecologica) — Official website — PNIEC targets, RD 244/2019, and autoconsumo regulation (accessed March 2026)
- REE (Red Electrica de Espana) — Official website — PVPC tariffs and grid data (accessed March 2026)
- CNMC (Comision Nacional de los Mercados y la Competencia) — Official website — Energy market regulation and peaje de acceso (accessed March 2026)
- IDAE (Instituto para la Diversificacion y Ahorro de la Energia) — Official website — Solar market data and energy efficiency programs (accessed March 2026)
- SolarPower Europe — EU Market Outlook — European solar market data (accessed March 2026)
- Aurora Solar, PVsyst, PV*SOL, OpenSolar Official Documentation — Feature specifications and pricing (accessed March 2026)
- REBT (Reglamento Electrotecnico para Baja Tension) — Spanish low-voltage electrical installation standards (accessed March 2026)