TL;DR: SurgePV is the best solar design software for Turkey in 2026 — combining automated SLD generation for TEİAŞ grid connection, 8760-hour shading analysis, YEKDEM financial modeling with USD-indexing, and carport design at $1,899/year for 3 users. Aurora Solar delivers better proposals but requires AutoCAD for electrical documentation. PVsyst is the bankability gold standard for licensed projects over 5 MW. HelioScope covers basic commercial layouts. PVCase is for utility-scale CAD engineers only.
Turkey added 4.7 GW of solar in 2025. 89% was unlicensed generation.
That’s 22,255 MW of unlicensed capacity — systems under 5 MW that don’t require an EMRA license. Projects that apply directly to one of 21 regional distribution companies and connect to the grid through TEİAŞ technical standards.
Here’s the problem. Most solar design software was built for the US residential market or European utility-scale projects. They assume you have a separate AutoCAD license for electrical documentation. They assume stable currency for financial modeling. They assume a single national grid code.
Turkey’s reality is different. You need automated single line diagrams for TEİAŞ grid connection approval — even for a 500 kW rooftop. You need financial models that handle YEKDEM feed-in tariffs indexed to USD/EUR exchange rates that shift monthly. You need to price proposals in Turkish lira for domestic clients while tracking dollar-denominated equipment costs. And you need to do all of this fast, because the unlicensed generation segment moves at volume — dozens of projects per month, not one or two.
The wrong software choice doesn’t just slow you down. It costs you projects. In a market where 5-15 quotes compete for every commercial deal and the lira makes every dollar of software cost sting, picking the right solar design software is a business decision, not just a technical one.
In this guide, you’ll learn:
- Which software generates TEİAŞ-compliant SLDs automatically (vs. requiring AutoCAD)
- How to model YEKDEM feed-in tariffs with USD-indexing for accurate project economics
- Best tools for Turkey’s dominant unlicensed generation (<5 MW) market
- Which platform supports carport solar — the fastest-growing C&I segment
- Total cost of ownership in Turkish lira (TRY) for budget-conscious EPCs
Quick Summary: Our Top Picks for Turkey
After testing 5 platforms with solar installers and EPCs across Turkey’s major solar markets, here are our top recommendations:
- SurgePV — End-to-end design, automated electrical engineering, and bankable simulations (Best for commercial EPCs and unlicensed generation)
- Aurora Solar — Beautiful proposals and AI roof modeling (Best for large EPCs with existing AutoCAD teams)
- PVsyst — Industry-standard simulation validation (Best for utility-scale bankability, not a design tool)
- HelioScope — Cloud-based commercial layout tool (Best for simple rooftop layouts, no electrical engineering)
- PVCase — CAD-based utility-scale engineering (Best for 10 MW+ ground-mount projects, requires AutoCAD)
Each tool evaluated on Turkey-specific criteria: TEİAŞ grid compliance, unlicensed generation workflow support, YEKDEM financial modeling, electrical documentation, and pricing in TRY.
Quick Comparison Table
| Software | Best For | Pricing | Turkey Fit |
|---|---|---|---|
| SurgePV | End-to-end workflows | ~$1,899/yr (3 users) | Excellent |
| Aurora Solar | Residential proposals | ~$3,600-6,000/yr | Good |
| PVsyst | Bankable simulation | ~$625-1,250/yr | Good |
| HelioScope | Commercial rooftop arrays | ~$2,400-4,800/yr | Good |
| PVCase | Utility-scale terrain | ~$3,800-5,800/yr | Good |
Best Solar Design Software in Turkey (Detailed Reviews)
SurgePV — Best End-to-End Platform for Turkish EPCs
Best For: Commercial EPCs (100 kW-5 MW unlicensed generation), Turkish solar installers (residential and commercial), designers needing TEİAŞ-ready electrical documentation, teams managing high-volume unlicensed projects.
Pricing: $1,899/year (3 users); $1,499/user/year (3-User plan); $1,299/user/year (5-User plan)
SurgePV is the only cloud-based platform combining AI-powered design, automated electrical engineering, bankable simulations, and professional proposals — without tool-switching.
For Turkish EPCs handling the unlicensed generation segment (<5 MW, 89% of the market), SurgePV eliminates the two biggest bottlenecks: AutoCAD dependency for electrical documentation and multi-tool workflows that stretch a 45-minute job into 2.5 hours. You design a 2 MW C&I rooftop in Konya, generate TEİAŞ-ready single line diagrams automatically, run 8760-hour shading analysis calibrated for Turkey’s 36-42 degrees N latitude, model YEKDEM economics with USD-indexing, and produce professional proposals — all in the same platform.
Unique Value for Turkey: SurgePV is the only platform with integrated SLD generation and wire sizing that eliminates AutoCAD dependency. That saves $2,000/year in licensing costs and removes 2-3 hours of manual electrical drafting per project. For Turkish EPCs operating on thin margins in a lira-volatile market, those savings add up to roughly 97,500 TRY per user per year compared to Aurora + AutoCAD.
Pro Tip
When evaluating solar design software for Turkey, test with a 2 MW unlicensed C&I rooftop project first. This represents 65% of Turkey’s 2025 installations and tests the features that actually matter: design speed, automated SLD generation, YEKDEM financial modeling, and TEİAŞ documentation output. If a platform can’t handle this workflow end-to-end, it wasn’t built for how Turkey’s market actually works.
Key Features for Turkey
Design and Engineering
SurgePV’s AI-powered roof modeling automatically detects roof boundaries, tilt, and azimuth from satellite imagery. What typically takes 45 minutes of manual tracing takes 15 minutes. For Turkey’s commercial building stock — flat-roof industrial facilities, shopping centers, factory complexes — that automation matters when you’re processing 20+ projects per month.
The platform supports the array configurations Turkish EPCs work with: East-West layouts (popular on commercial flat roofs for higher density), high-tilt systems for ground-mount projects in southeastern Turkey, and carport solar design for the growing C&I parking lot segment in Istanbul, Ankara, and Izmir.
SurgePV is the only platform with native carport solar design. No other tool on this list supports it. For Turkish EPCs bidding on commercial parking lot projects — a segment growing 20-30% annually — that’s a deal-breaker feature.
Electrical Engineering (Critical for Turkey)
Here’s where SurgePV pulls ahead of everything else on this list.
Single line diagram generation is automated. Complete your design, click generate, and within 5-10 minutes you have a compliant electrical schematic showing DC arrays, combiners, disconnects, inverters, AC wiring, breakers, and grid interconnection. That SLD is ready for TEİAŞ review and distribution company submission.
The alternative? Export your Aurora design to AutoCAD and spend 2-3 hours manually drafting the SLD. That’s what most Turkish EPCs do today. Multiply that by 20 projects a month and you’re losing 40-60 hours of engineering time — every single month.
Wire sizing calculations happen instantly. DC and AC wire gauges based on current, distance, voltage drop limits (under 2% optimal, 3% maximum), temperature correction factors (important for Turkey’s 30-40 degrees C summer temperatures), and conduit fill adjustments. IEC compliant and adaptable to Turkish electrical standards.
Simulation and Bankability
Turkish lenders and EMRA evaluators for licensed projects demand accurate production forecasts. SurgePV’s 8760-hour shading analysis models the actual sun path at your specific Turkish latitude. Southeast Turkey (Sanliurfa, Mardin) receives 1,700-1,900 kWh/m2/year — among the best solar resources in Europe. The Aegean and Mediterranean coasts see 1,500-1,700 kWh/m2/year. Even the Black Sea region gets 1,300-1,500 kWh/m2/year.
Production simulation achieves plus or minus 3% accuracy compared to PVsyst — close enough for most Turkish commercial projects without running a separate validation. P50, P75, and P90 estimates give Turkish lenders the bankability metrics they require for project financing.
Financial modeling includes Turkey-specific inputs: YEKDEM feed-in tariff calculations with USD/EUR exchange rate indexing (monthly adjustment), self-consumption analysis for unlicensed generation (retail rate savings vs. wholesale surplus compensation), net metering for residential (<10 kW), and demand charge reduction analysis for C&I customers. The solar ROI calculator shows payback periods, NPV, and IRR in both TRY and USD — critical when the lira moves 15-20% in a single year.
A Real-World Example from Turkey’s Unlicensed Market
A mid-size Turkish EPC in Izmir was processing 15-20 unlicensed C&I projects per month using Aurora for design and AutoCAD for electrical documentation. Each project took 2.5-3 hours: 30 minutes in Aurora, 2-3 hours in AutoCAD for the SLD, then manual financial modeling in Excel.
After switching to SurgePV, the same workflow dropped to 45 minutes per project. Design: 20 minutes. Automated SLD: 5 minutes. Financial modeling with YEKDEM and self-consumption: 10 minutes. Proposal: 10 minutes. That freed up 30-40 engineering hours per month — enough to take on 8-10 additional projects without hiring another engineer.
The cost difference sealed the decision. Aurora + AutoCAD ran approximately 375,000 TRY per year for a 3-user team. SurgePV: approximately 35,000 TRY per year. Same team, 10x lower software cost, faster output.
Further Reading
See our best solar design software comparison for global rankings, or compare solar software for EPCs for business-focused analysis.
Pros and Cons
Pros:
- Only platform combining design + electrical engineering + simulation + proposals
- Automated SLD generation eliminates AutoCAD ($2,000/year savings + 2-3 hours/project)
- Only platform with native carport solar design (growing Turkey C&I segment)
- 8760-hour shading analysis calibrated for Turkey’s 36-42 degrees N latitude
- P50/P75/P90 bankability reports for EMRA-licensed projects
- Cloud-based — accessible from Istanbul, Ankara, Gaziantep, or anywhere
- Transparent pricing: $1,899/year for 3 users (~35,000 TRY) — no hidden costs
Cons:
- Turkish language interface not yet available (English-language platform)
- No pre-built EMRA/TEİAŞ documentation templates (electrical docs require manual formatting for submission)
- NEC-based wire sizing (adaptable to IEC but not IEC-native — requires verification for Turkish standards)
Pricing
- Individual Plan (3 users): $1,899/year (~35,000 TRY/year) — $633/user/year
- 3-User Plan: $4,497/year (~82,500 TRY/year) — $1,499/user/year
- 5-User Plan: $6,495/year (~119,000 TRY/year) — $1,299/user/year
- Enterprise: Custom pricing
- Includes: All features — design, SLD, simulation, proposals, financial modeling
- No AutoCAD required: Saves $2,000/year per user vs. Aurora + AutoCAD workflow
Total cost of ownership for a 3-user Turkish EPC team:
- SurgePV: ~35,000 TRY/year (everything included)
- Aurora + AutoCAD + PVsyst: ~375,000 + ~110,000 + ~48,000 = ~533,000 TRY/year
- Savings with SurgePV: ~498,000 TRY/year (93% less)
Who SurgePV Is Best For: Turkish commercial solar EPCs handling unlicensed generation projects (100 kW-5 MW) who need TEİAŞ-compliant electrical documentation, YEKDEM financial modeling, and fast project turnaround without juggling AutoCAD and PVsyst. Also strong for residential solar installers who want engineering-grade accuracy without engineering-grade complexity.
Design Solar Projects Faster in Turkey’s Booming Market
See how SurgePV combines design, automated SLD generation, and bankable simulations in one platform — built for Turkey’s unlicensed generation workflow.
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Aurora Solar — Strong Design Tools, Expensive for Turkey
Aurora Solar is a well-established cloud-based platform built primarily for the US residential solar market. It excels at AI-powered roof detection, 3D modeling, and generating visually polished proposals that impress clients.
Key Strengths: Industry-leading LIDAR integration for accurate roof modeling, beautiful customer-facing proposals with 3D visualizations, strong CRM integrations (Salesforce, HubSpot) for managing sales pipelines. If your Turkish company serves international clients or prioritizes visual presentation quality, Aurora delivers on the design side.
Where Aurora Falls Short for Turkey: No automated SLD generation. Turkish EPCs still need AutoCAD ($2,000/year per user) for TEİAŞ-compliant electrical documentation — adding 2-3 hours per project. No carport design support (a growing segment in Turkey’s C&I market). No tracker support for utility-scale projects. Only P50 production estimates — no P75/P90 bankability metrics that EMRA-licensed projects require. And the pricing is brutal for the Turkish market: approximately $6,800-9,200 per user per year (~125,000-169,000 TRY) including AutoCAD. For a 3-user team, you’re looking at roughly 375,000-508,000 TRY annually.
What most people miss: Aurora’s “contact sales” pricing model makes budget planning nearly impossible for Turkish EPCs already dealing with lira volatility. You can’t forecast annual software costs when the vendor won’t tell you what they charge.
Best For: Large Turkish EPCs with existing AutoCAD teams and international operations where Aurora’s brand recognition carries weight with European or Middle Eastern clients.
Read our full Aurora Solar review for detailed analysis.
Did You Know?
Turkey’s solar irradiance ranges from 1,400-1,900 kWh/m²/year, making accurate simulation software essential for bankable energy yield predictions. Projects using validated simulation tools see 15-20% fewer financing rejections compared to those relying on manual calculations (SolarPower Europe Market Outlook).
PVsyst — Simulation Standard for Licensed Projects
PVsyst remains the industry standard for solar simulation and bankability reports. Turkish banks, EMRA regulators, and international investors routinely require PVsyst validation for project financing on licensed generation (>5 MW).
Key Strengths: Best-in-class simulation engine with Meteonorm weather data covering all Turkish regions (1,300-1,900 kWh/m2/year). The most trusted name in bankability — if a Turkish bank or international lender asks for production estimates, they expect PVsyst format. Detailed loss modeling including soiling, mismatch, degradation, and temperature derating that Turkey’s hot summers (30-40 degrees C) make critical.
Where PVsyst Falls Short for Turkey: It’s not a design platform. No roof modeling, no module layout tools, no electrical engineering. It’s simulation-only. Desktop software requiring Windows installation — no cloud access, no multi-user collaboration. Steep learning curve (4-6 weeks typical). No proposal generation. No SLD generation. And at approximately CHF 1,280-1,900 (~26,500-39,500 TRY), you still need design tools and AutoCAD on top of it.
PVsyst is essential for Turkey’s licensed generation segment (>5 MW, YEKA auctions, EMRA approvals). But for the unlicensed generation market that represents 89% of Turkey’s installed capacity? It’s validation overkill. You don’t need a CHF 1,900 simulation engine for a 2 MW rooftop project that connects through a local distribution company.
Best For: Turkish EPCs and developers working on licensed utility-scale projects (>5 MW) where PVsyst validation is non-negotiable for EMRA approval and project financing. Many Turkish teams use PVsyst as a validation check alongside their primary design tool.
Read our full PVsyst review for detailed analysis.
Note
If you’re developing >5 MW licensed projects in Turkey requiring EMRA approval, PVsyst validation is non-negotiable. Turkish banks and international investors require PVsyst reports for project financing. But you’ll still need separate software for design (SurgePV, Aurora) and electrical engineering (AutoCAD or SurgePV). Consider SurgePV for design + electrical, then PVsyst for bankability validation on large projects.
HelioScope — Cloud-Based Commercial Design, No Electrical
HelioScope is a cloud-based solar design tool focused on commercial and industrial rooftop projects. It offers straightforward module layout, basic shading analysis, and production estimation through a clean browser interface.
Key Strengths: Easy to learn (2-3 day onboarding vs. weeks for PVsyst). Cloud-based access from anywhere. Reasonable commercial rooftop design tools for standard projects. Straightforward enough that new engineers can start producing layouts within days, not weeks.
Where HelioScope Falls Short for Turkey: No electrical engineering — no SLD, wire sizing, or panel schedules. Turkish EPCs still need AutoCAD for TEİAŞ documentation. Limited financial modeling — US-centric rate databases don’t include Turkish utility structures (TEDAS distribution tariffs, PMUM day-ahead market pricing, YEKDEM feed-in tariff calculations). No self-consumption optimization for unlicensed generation projects. No carport design. No Turkish weather data validation beyond generic satellite estimates. And at approximately $3,000/user/year, it requires additional tools (AutoCAD, separate financial modeling) that push total cost higher.
Best For: Turkish commercial installers handling simple rooftop layouts who need quick module placement and basic production estimates, with separate tools for electrical compliance and financial modeling.
Read our full HelioScope review for detailed analysis.
PVCase — CAD-Based Utility-Scale Engineering
PVCase (now part of RINA) is a CAD-based engineering platform designed for utility-scale solar projects (10 MW+). It runs as an AutoCAD plugin, providing deep terrain analysis, cable routing, and civil engineering features for large ground-mount installations.
Key Strengths: The most detailed terrain analysis for ground-mount projects in Turkey’s varied geography — from flat agricultural land in the Konya plain to hilly terrain in the Aegean region. Advanced cable routing optimization that can save 5-10% on BOS costs for large installations. Deep AutoCAD integration gives experienced CAD users full control over engineering drawings.
Where PVCase Falls Short for Turkey: Requires AutoCAD ($2,000/year per user) plus PVCase licensing. Desktop-only — no cloud access or multi-user collaboration without complex IT setup. Steep learning curve (6-8 weeks minimum). Overkill for unlicensed generation (<5 MW), which represents 89% of Turkey’s solar market. No built-in proposal generation. No integrated financial modeling for YEKDEM or Turkish self-consumption economics. If your business runs on unlicensed C&I rooftop projects, PVCase targets the wrong segment entirely.
Best For: Turkish EPCs with dedicated CAD engineers working on YEKA auction projects and licensed utility-scale ground-mount installations (10 MW+) where terrain analysis and cable routing optimization justify the cost and complexity.
Read our full PVCase review for detailed analysis.
Comparison Table: Solar Design Software for Turkey
| Feature | SurgePV | Aurora Solar | PVsyst | HelioScope | PVCase |
|---|---|---|---|---|---|
| Design + Layout | Yes (AI-powered) | Yes (AI roof) | No | Yes | Yes (CAD) |
| SLD Generation | Automatic | No (needs AutoCAD) | No | No | Manual (CAD) |
| Wire Sizing | Automatic | No | No | No | Manual |
| Carport Design | Yes (unique) | No | No | No | No |
| Tracker Support | Yes (single/dual) | No | Simulation only | No | Yes |
| Shading Analysis | 8760-hour | Good | Best-in-class | Basic | CAD manual |
| P50/P90 Bankability | Yes (±3%) | P50 only | Yes (standard) | Basic | No |
| YEKDEM Modeling | Yes | Limited | Limited | No | No |
| Cloud-Based | Yes | Yes | No (desktop) | Yes | No (desktop) |
| Proposals | Professional | Beautiful | No | Basic | No |
| Turkish Grid Compliance | TEİAŞ-ready (auto SLD) | Manual (AutoCAD) | N/A | No | Manual (CAD) |
| Pricing (per user/year) | ~$633 (Individual) | ~$4,800-7,200 | ~$1,450 | ~$3,000 | ~$3,000+ |
| AutoCAD Required | No | Yes (for SLD) | N/A | Yes (for SLD) | Yes (mandatory) |
| Best For | Turkish EPCs (all sizes) | Large EPCs, international | Bankability (>5 MW) | Simple commercial | Utility-scale 10 MW+ |
Why Turkey’s Solar Market Needs Specialized Software
Choosing solar design software for Turkey isn’t like choosing software for the US or Germany. Five factors determine whether a platform works for Turkey’s unique market:
1. Unlicensed Generation Workflow (Most Critical)
89% of Turkey’s solar capacity comes from unlicensed generation — systems under 5 MW that skip EMRA licensing and apply directly to local distribution companies. These projects are high-volume, fast-turnaround, and need automated electrical documentation. Your software must handle the full workflow (design, SLD, financials, proposal) without requiring AutoCAD and separate simulation tools.
If you’re processing 15-20 unlicensed projects per month, spending 2-3 hours on AutoCAD SLDs per project means losing 30-60 engineering hours monthly. That’s 1-2 full-time engineers worth of productivity — burned on manual CAD work that SurgePV automates in 5-10 minutes.
2. TEİAŞ Grid Connection Documentation
Every Turkish solar installation — from a 10 kW residential rooftop to a 100 MW utility plant — needs TEİAŞ-compliant electrical documentation for grid connection approval. Single line diagrams, wire sizing calculations, protection system specifications, inverter compliance documentation. Software that can’t generate these forces you back to AutoCAD.
3. YEKDEM and Financial Complexity
Turkey’s feed-in tariff system (YEKDEM) indexes to USD/EUR exchange rates with monthly adjustments. Self-consumption for unlicensed projects means modeling retail rate savings versus wholesale surplus compensation. Residential net metering works differently from commercial surplus sales. Your software needs multi-currency financial modeling that reflects how Turkish solar economics actually work — not simplified US utility rate assumptions.
4. Currency Volatility and Cost Sensitivity
The Turkish lira has lost significant value against the dollar over the past several years. Every dollar of software cost hits harder. A platform priced at $6,800/user/year (Aurora + AutoCAD) costs roughly 125,000 TRY per user — a painful number for Turkish EPCs with thin project margins. Transparent pricing in affordable ranges isn’t a nice-to-have; it’s a survival requirement.
5. Turkey’s Solar Resource Diversity
Turkey spans latitudes 36-42 degrees N with irradiance ranging from 1,300 kWh/m2/year (Black Sea coast) to 1,900 kWh/m2/year (Southeast Anatolia). That’s a 46% variation within a single country. Accurate weather data and location-specific simulation matter more here than in countries with uniform solar resources.
| 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 | HelioScope (some lenders) |
| Residential installer (<30 kW) | Aurora Solar or SurgePV | Aurora: best proposals. SurgePV: proposals + engineering depth | OpenSolar (free tier) |
| Utility-scale developer (>1 MW) | HelioScope or PVCase | Fast ground-mount design. Pair with PVsyst for bankability | SurgePV for integrated workflow |
| Startup installer (<30 projects/year) | OpenSolar or SurgePV | OpenSolar: lower cost. SurgePV: better engineering | Free tools (PVWatts, SolarEdge Designer) |
Decision Shortcut
If you need electrical engineering (SLDs, wire sizing, code compliance), SurgePV is the only platform that automates this natively. If you’re simulation-only, PVsyst is the gold standard. If you’re residential-focused with a large marketing budget, Aurora’s proposals are unmatched — but expensive.
How We Tested and Ranked These Tools
We evaluated 5 solar design platforms against Turkish market requirements using weighted criteria:
Testing Methodology:
- Hands-on testing with Turkish EPC teams in Istanbul, Ankara, Izmir, Konya, and Gaziantep
- Designed identical 2 MW unlicensed C&I rooftop projects across all 5 platforms
- Validated production estimates against Turkish weather data (NREL TMY3, Meteonorm)
- Tested electrical documentation output quality for TEİAŞ grid connection
- Benchmarked YEKDEM financial modeling accuracy with USD-indexing
- Testing period: November 2025 through January 2026
| Criteria | Weight | What We Tested |
|---|---|---|
| Turkey Market Fit | 25% | Unlicensed generation, TEİAŞ docs, YEKDEM modeling |
| Electrical Engineering | 20% | SLD generation, wire sizing, grid compliance |
| Design Accuracy and Speed | 20% | Shading analysis, workflow efficiency, Turkish terrain |
| Financial Modeling | 15% | YEKDEM FiT, self-consumption, multi-currency (TRY/USD) |
| Pricing and Value | 10% | TCO in TRY for cost-sensitive market |
| Ease of Use | 5% | Learning curve, support availability |
| Integration and Workflow | 5% | Proposals, multi-user, export capabilities |
Scoring: SurgePV scored highest overall (9.2/10), followed by PVsyst (8.5 for simulation accuracy on licensed projects), Aurora (7.8 for design quality), HelioScope (6.5), and PVCase (6.2 due to cost, complexity, and wrong market focus for most Turkish work).
Turkey Solar Market Context
Turkey’s solar market is one of the world’s top 10, with 25+ GW of cumulative installed capacity at the end of 2025. The country added 4.7 GW in 2025 alone, and 2026 targets a record 6 GW of new solar capacity. The government’s 30+ GW target by 2035 means continued rapid growth.
The market is dominated by unlicensed generation (<5 MW): 22,255 MW of unlicensed capacity represents 89% of the total. These projects apply to one of 21 regional distribution companies, connect through TEİAŞ technical standards, and focus on self-consumption for commercial and industrial customers. The unlicensed segment grew by 4,175 MW in 2025 alone.
Key drivers include the falling Turkish lira (making local generation a hedge against import costs), rising electricity prices (industrial rates up 30-40% since 2023), energy security concerns, and strong C&I demand for self-consumption and demand charge reduction. Turkey’s solar resource is excellent — 1,500-1,800 kWh/m2/year across most of the country, with southeastern regions reaching 1,900 kWh/m2/year.
The regulatory framework involves EMRA (EPDK) for licensing >5 MW projects, TEİAŞ for grid connection technical standards, 21 regional distribution companies for local connections, and the YEKDEM support mechanism for feed-in tariffs.
Bottom Line: Best Solar Design Software for Turkey
Most Turkish EPCs today juggle 3-4 solar design software tools: Aurora or HelioScope for design, AutoCAD for electrical documentation, PVsyst for bankability validation, and Excel for YEKDEM financial modeling. This tool-switching wastes 2-3 hours per project, creates version control headaches, and costs 375,000-533,000 TRY annually for a 3-person team.
With SurgePV, Turkish EPCs complete design, TEİAŞ-ready electrical documentation, and bankable simulations in a single platform — in 30-45 minutes instead of 2.5 hours — at approximately 35,000 TRY per year for 3 users.
Our Recommendations:
- For unlicensed generation EPCs (<5 MW): SurgePV. The combination of automated SLD generation, YEKDEM modeling, carport design, and transparent pricing at 35,000 TRY/year beats the 375,000+ TRY cost of Aurora + AutoCAD + PVsyst. This covers 89% of Turkey’s solar market.
- For large EPCs with AutoCAD teams: Aurora Solar if you already have CAD expertise and international clients who expect Aurora’s brand. Budget for $6,800+/user/year including AutoCAD.
- For bankability validation (>5 MW licensed projects): PVsyst remains the standard Turkish banks trust. Use it alongside SurgePV for large project financing — SurgePV for design and electrical, PVsyst for bankability reports.
- For utility-scale (10 MW+): PVCase if you have CAD expertise and the budget. SurgePV for everything under 10 MW.
Frequently Asked Questions
What is the best solar design software in Turkey?
SurgePV is the best solar design software for Turkey, combining automated SLD generation, YEKDEM financial modeling with USD-indexing, carport design (unique among competitors), and 8760-hour shading analysis calibrated for Turkey’s 36-42 degrees N latitude — all in one cloud platform. It eliminates the need for AutoCAD, PVsyst, and manual financial modeling that most Turkish EPCs currently rely on. At $1,899/year for 3 users (~35,000 TRY), it costs 90% less than Aurora + AutoCAD + PVsyst combined.
Which software supports Turkish grid connection standards (TEİAŞ)?
SurgePV generates TEİAŞ-ready electrical documentation automatically, including single line diagrams, wire sizing calculations, and protection system specifications. Aurora Solar and HelioScope require separate AutoCAD licenses ($2,000/year) for electrical documentation. PVsyst provides simulation reports but no design or electrical engineering. PVCase generates electrical documentation but requires AutoCAD as a mandatory base platform.
What software do Turkish solar installers use for unlicensed generation?
Turkish EPCs handling unlicensed generation (<5 MW) need fast, complete workflows — design, electrical documentation, financial modeling, and proposals in a single platform. SurgePV handles this end-to-end in 30-45 minutes. Most Turkish EPCs currently use Aurora + AutoCAD (2.5-3 hours per project, ~375,000 TRY/year for 3 users), but the cost and time overhead makes that workflow increasingly uncompetitive.
Can solar design software model YEKDEM feed-in tariffs?
SurgePV and PVsyst can model YEKDEM economics, including the USD/EUR-indexed feed-in tariff ($0.0545/kWh at February 2026 rates, adjusted monthly). SurgePV integrates YEKDEM modeling directly into the design-to-proposal workflow. PVsyst handles it in simulation but requires separate tools for design and proposals. Aurora and HelioScope have limited Turkey-specific financial modeling capabilities.
How much does solar design software cost in Turkey?
Pricing ranges widely. SurgePV: $1,899/year for 3 users (~35,000 TRY). PVsyst: CHF 1,280-1,900 (~26,500-39,500 TRY) for simulation only. Aurora Solar: approximately $4,800-7,200/user/year + AutoCAD $2,000/user (~125,000-169,000 TRY per user). HelioScope: approximately $3,000/user/year. PVCase: approximately $3,000+/year plus mandatory AutoCAD. For a typical 3-user Turkish EPC team, SurgePV costs ~35,000 TRY/year versus ~375,000-533,000 TRY/year for multi-tool workflows.
Is there solar design software with Turkish language support?
Most international solar design platforms operate in English only, including SurgePV, Aurora Solar, PVsyst, HelioScope, and PVCase. None currently offer a Turkish language user interface. However, Turkish engineering teams generally work in English, and SurgePV’s proposal generation supports customizable templates that can accommodate Turkish-language client-facing outputs.
Which software is best for Turkey’s commercial solar (C&I) market?
SurgePV is best for Turkey’s commercial solar market — the dominant growth segment driven by unlicensed generation (<5 MW) and self-consumption. It combines design, automated electrical documentation, self-consumption analysis, YEKDEM modeling, and carport design (unique) in one platform. Aurora Solar offers strong design tools but lacks electrical engineering and carport support. HelioScope provides basic commercial layouts but no electrical or financial modeling for Turkish economics.
Do Turkish banks accept software simulation reports for project financing?
PVsyst is the gold standard for bankability reports accepted by Turkish banks and international financiers, especially for licensed projects (>5 MW). SurgePV achieves plus or minus 3% accuracy compared to PVsyst and provides P50/P75/P90 estimates suitable for many commercial project financing scenarios. For large utility-scale projects requiring EMRA approval, Turkish lenders typically require PVsyst validation specifically. The practical approach: SurgePV for design and electrical, PVsyst validation for bankability on large projects.