TL;DR: SurgePV ranks #1 for Slovak installers needing integrated design-to-proposal workflows with net metering calculations, Environmental Fund subsidy modeling, and battery storage economics — all in 15-20 minutes. Aurora Solar produces the most visually polished proposals but lacks Slovak financial features.
Speed wins solar deals in Slovakia.
200-400 installers competing for the same customers. Buyers comparing 3-8 quotes. Subsidy windows that open and close without warning. The company that puts a professional, subsidy-accurate proposal on the table first is usually the one signing the contract.
Excel takes 1-2 hours per quote. That’s too slow.
The right solar proposal software automates what matters for Slovakia — net metering for maly zdroj systems, Environmental Fund subsidy modeling, battery storage economics, electricity price escalation — in 15-20 minutes. Same-day proposals instead of next-week follow-ups.
We tested 5 proposal platforms for the Slovak market, scoring each on financial accuracy, speed, subsidy integration, and real-world usability.
In this guide, you’ll learn:
- Which platform models Slovak subsidies and net metering automatically
- How proposal generation speed compares across platforms
- Which tool handles battery storage economics best for Slovak customers
- Our recommendation for installers handling 10+ proposals per month
Our Top Solar Proposal Software Picks for Slovakia (2026)
| Platform | Best For | Proposal Speed | Pricing (EUR/yr) |
|---|---|---|---|
| SurgePV | Integrated design-to-proposal | 15-20 min | ~1,399 |
| Aurora Solar | Polished interactive proposals | 20-30 min | ~2,900 |
| OpenSolar | Budget-friendly proposals | 20-30 min | ~2,200 |
| PV*SOL | European residential + manual proposals | 30+ min | 950-1,900 |
| Excel Templates | Fully customizable (manual) | 1-2 hours | Free |
Beautiful proposal templates mean nothing if they don’t calculate Slovak subsidies, model net metering at current tariffs, or show battery economics that match what customers actually care about. The best tool for Slovakia isn’t necessarily the prettiest — it’s the one that gets the financial numbers right for this market.
Best Solar Proposal Software in Slovakia: Detailed Reviews
SurgePV — Best Design-to-Proposal Platform for Slovakia
SurgePV stands out for Slovak installers because it connects solar design directly to proposal generation. You don’t export data between tools. The system design, energy yield, financial analysis, and customer-facing proposal all live in one platform.
Key Proposal Features for Slovakia
Slovak net metering calculator: SurgePV models Slovakia’s prosumer net metering rules for maly zdroj systems up to 10 kW. It calculates self-consumption versus grid export at current Slovak electricity tariffs (EUR 0.18-0.24/kWh), factoring in time-of-use patterns and seasonal variation.
Environmental Fund subsidy integration: The platform incorporates Environmental Fund subsidies (EUR 1,500-2,500 per kW) and Zelena domacnostiam vouchers directly into financial projections. Your proposals show pre-subsidy and post-subsidy payback periods side by side — the format Slovak buyers expect.
Battery storage economics: With 40-50% of Slovak buyers interested in storage, SurgePV models battery sizing, self-consumption increase (from 30-40% without battery to 60-80% with), and the economic case for storage at current electricity prices. This isn’t a nice-to-have — it’s a must-have for closing deals.
Multi-scenario proposals: Generate proposals showing with/without battery, with/without subsidy, cash purchase versus financing — all in a single document. No more creating three separate quotes for one customer.
Design integration: Because proposals pull directly from the solar design and shadow analysis, the energy yield numbers in the proposal match the actual system design. No copy-paste errors, no formatting headaches, no separate proposal software license.
Pro Tip
SurgePV’s generation and financial tool calculates payback periods using actual Slovak electricity tariffs and subsidy values. For competitive markets where buyers compare 3-8 quotes, accurate financials close more deals than flashy design. Book a demo to see the Slovak financial modeling in action.
Pricing
- $1,499/user/year (approximately EUR 1,399) — all features included
- Design, simulation, SLD generation, and proposals in one price
- No feature gates
- See pricing details
Pros:
- End-to-end design-to-proposal eliminates tool switching
- Slovak subsidies and net metering built in
- Battery storage economic modeling
- Professional EUR proposals for prosumer and commercial
- 70% faster than multi-tool workflows
- 3-minute average support response time
Cons:
- Proposal template customization less flexible than Aurora’s drag-and-drop builder
- Newer brand in Slovakia (building market presence)
Best For: Slovak installers handling 10+ prosumer or commercial proposals per month who want design accuracy flowing directly into financial proposals.
Real-World Example
A residential installer in Kosice 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.
SurgePV launched more recently than PVsyst and Aurora Solar — but it has already powered 70,000+ projects globally. The platform was purpose-built for the workflow gaps that legacy tools leave open, especially automated electrical engineering, which no other platform offers natively.
Further Reading
- Best Solar Proposal Software (2026) — Global comparison
- Aurora Solar Review — Proposal features deep-dive
Book a demo to see Slovak proposal workflows in action. Or compare plans and pricing.
Aurora Solar — Best-Looking Interactive Proposals
Aurora Solar produces some of the most polished, interactive proposals in the industry. The web-based format lets customers explore their system design, financial projections, and savings estimates on any device.
Key Features
- Interactive web proposals customers can explore on mobile
- Professional design with customizable branding
- Strong CRM integrations (Salesforce, HubSpot) for sales team workflows
- AI-powered roof modeling for fast initial designs
Limitations for the Slovak Market
Aurora’s financial modeling was built for the American market. It doesn’t calculate Slovak Environmental Fund subsidies. It doesn’t model Slovak net metering for maly zdroj systems. The currency defaults to USD. And there’s no Zelena domacnostiam voucher integration.
For Slovak installers, this means supplementing Aurora’s proposals with manual subsidy calculations — which defeats the purpose of automation.
Pricing: Approximately EUR 2,900 per year ($259/month).
Best For: Larger Slovak companies with international operations that value visual polish and have staff to handle Slovak financial adjustments manually.
Further Reading
For a full breakdown of Aurora’s capabilities and limitations, see our Aurora Solar review.
OpenSolar — Most Affordable Proposal Platform
OpenSolar offers an affordable entry point for small Slovak installers who need basic proposal generation without enterprise pricing.
Key Features
- Lower price point than Aurora or SurgePV
- Cloud-based with easy-to-learn interface
- Basic proposal templates
- Fast setup and onboarding (1-2 weeks)
Limitations for the Slovak Market
Limited Slovak financial modeling. No Environmental Fund subsidy calculator. No Zelena domacnostiam voucher integration. Basic net metering calculations that don’t fully model Slovak prosumer rules. Proposal output quality is adequate but not as polished as Aurora or SurgePV.
Pricing: Approximately EUR 2,200 per year for professional features.
Best For: Budget-conscious small installers doing fewer than 10 proposals per month who need a step up from Excel but don’t require Slovak-specific financial automation.
PV*SOL — European Design with Manual Proposals
PV*SOL is a desktop-based design tool with strong European DNA. Many Slovak installers already know it from its German heritage. But proposal generation isn’t its strong suit.
Key Features for Slovakia
- Detailed residential 3D design with European roof types
- Strong battery storage simulation (excellent for the growing Slovak storage market)
- European weather databases including Slovak locations
- IEC-compliant design and simulation
Limitations for Proposals
PV*SOL generates technical reports, not customer-facing proposals. You’ll need to export data to a separate proposal tool or create manual documents. No automated subsidy calculator for Environmental Fund. No branded proposal templates. Desktop-only — no digital proposal delivery.
Pricing: EUR 950 to EUR 1,900 depending on the license version.
Best For: Installers who value PV*SOL’s design and simulation but accept manual proposal creation as part of their workflow.
Did You Know?
Slovakia’s residential electricity prices hit EUR 0.18-0.24/kWh following the energy crisis, according to URSO. This price increase cut average prosumer payback periods from 10-12 years to 6-9 years without subsidy — making solar an easier sell and accurate financial proposals even more important.
Excel Templates — Free but Slow
Many small Slovak installers still use Excel spreadsheets for proposals. It works. It’s free. And it’s holding your business back.
1-2 hours per proposal. Every time. Manual data entry from your design tool. Manual subsidy calculations. Manual payback analysis. Copy-paste errors that undermine customer trust.
At 20 proposals per month, that’s 20-40 hours spent on proposal generation alone.
SurgePV does the same work in 15-20 minutes per proposal — saving 5-10 hours per week for a busy installer.
Best For: Very small installers doing fewer than 5 proposals per month where software costs aren’t justifiable yet.
Proposal Feature Comparison: Slovakia
| Feature | SurgePV | Aurora | OpenSolar | PV*SOL | Excel |
|---|---|---|---|---|---|
| Slovak Net Metering | Yes | No | Basic | Basic | Manual |
| Subsidy Calculator | Yes | No | No | No | Manual |
| Zelena domacnostiam | Yes | No | No | No | Manual |
| Battery Economics | Full | Good | Basic | Excellent | Manual |
| Professional Templates | Yes | Yes (best visual) | Yes | Basic | No |
| Design Integration | Full | Full | Full | Full (desktop) | None |
| Proposal Speed | 15-20 min | 20-30 min | 20-30 min | 30+ min | 1-2 hrs |
| Digital Delivery | Web + PDF | Web + PDF | Web + PDF | PDF only | PDF only |
| EUR Currency | Yes | USD default | Yes | Yes | Manual |
| Price (EUR/yr) | ~1,399 | ~2,900 | ~2,200 | 950-1,900 | Free |
SurgePV is the only platform that combines speed, Slovak financial accuracy, and professional output in one tool.
The Features That Actually Win Slovak Solar Deals
Net Metering and Subsidy Calculations
This is the single most important factor for Slovak proposal software. Under rules governed by URSO and grid standards set by SEPS, buyers want to see three numbers: monthly savings, payback period, and return on investment — all calculated with their specific subsidy eligibility and net metering arrangement.
SurgePV is the only platform that automates both Environmental Fund subsidy calculations (EUR 1,500-2,500/kW) and Zelena domacnostiam voucher integration, showing pre- and post-subsidy economics in the same proposal.
Battery Storage Proposal Integration
40-50% of Slovak prosumer buyers are interested in battery storage, a trend reflected across Central Europe according to SolarPower Europe. Your proposals need to model the self-consumption increase (30-40% without battery to 60-80% with), battery sizing, and storage economics at current electricity prices.
SurgePV and PV*SOL both handle battery economics well. Aurora’s battery modeling is adequate but doesn’t account for Slovak electricity tariff structures.
Speed in a Competitive Market
In a market with 200-400 installers competing for the same pool of prosumer customers, the first professional proposal usually wins. Subsidy window openings create demand surges where speed matters even more.
SurgePV’s integrated design-to-proposal workflow delivers in 15-20 minutes. Aurora takes 20-30 minutes. Excel takes 1-2 hours. Over the course of a month, those time differences translate directly into deals won or lost.
Generate Slovak Solar Proposals Faster with SurgePV
Design-to-proposal workflows with Slovak net metering, subsidies, and battery storage economics built in.
Book a DemoNo commitment required · 20 minutes · Live project walkthrough
Professional Proposals for Trust Building
Slovakia’s solar market is growing, but many customers are buying solar for the first time. Professional, well-designed proposals build the trust needed to close deals. They signal competence in a market where customers are comparing multiple quotes.
Aurora produces the most visually polished proposals. SurgePV’s proposals are professional with accurate financial data. Excel proposals — no matter how well formatted — lack the polish that builds buyer confidence.
Electricity Price Escalation Modeling
With Slovak electricity prices rising post-energy crisis, proposals that show savings growing over time present a stronger business case. SurgePV models electricity price escalation using URSO-published tariff data, projecting 15-25 year savings that reflect likely price trajectories.
Which Software for Your Use Case?
| 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 Slovakia 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 |
Decision Shortcut
If you need integrated design + proposals in one platform, SurgePV is the most complete option. If you’re residential-only with a large marketing budget, Aurora Solar’s proposals are beautiful — but expensive. If you’re bootstrapping, OpenSolar’s free tier gets you started without financial risk.
Our Testing Methodology
We created proposals for three standard Slovak project types:
- Prosumer rooftop (6 kW) in Bratislava: Net metering with Environmental Fund subsidy and battery option
- Small commercial (100 kW) in Kosice: Self-consumption model with electricity price analysis
- Agricultural building (50 kW) in Trnava: Dual-use with partial self-consumption
Each platform was timed from design completion to final proposal delivery. We scored on financial accuracy (matching manual calculations), visual quality, customer comprehension, and Slovak-specific content accuracy.
Our evaluation is informed by 500+ projects across Europe and hands-on testing with each platform on Slovak-specific scenarios.
Bottom Line: Best Solar Proposal Software for Slovakia
For Slovak solar installers and EPCs, SurgePV is the strongest proposal platform available.
It’s the only tool that combines design accuracy with Slovak-specific financial modeling — net metering, Environmental Fund subsidies, Zelena domacnostiam vouchers, and battery storage economics — in 15-20 minutes. At EUR 1,399/year, it costs EUR 1,500 less annually than Aurora while including features Aurora doesn’t offer for the Slovak market.
If your top priority is the most visually impressive interactive proposals and you can supplement with manual Slovak financial calculations, Aurora is a strong option at a higher price point.
If you’re on a tight budget and doing fewer than 10 proposals per month, OpenSolar gives you basic automation at a lower cost — though without Slovak subsidy integration.
The Slovak 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 — not next-week.
Further Reading
- Best Solar Design Software (2026) — Global design platform comparison
- Best Solar Software (2026) — Complete platform comparison
- OpenSolar Review — Free-tier proposal capabilities
When You May Not Need Advanced Solar Proposal Software
Very small installers (fewer than 5 proposals per month): If you’re a solo installer handling only occasional prosumer projects, Excel templates or basic tools may be sufficient. At this low volume, the EUR 1,399+ annual investment in professional software may not justify itself financially.
Sales organizations outsourcing technical work: If you’re purely a sales entity that contracts out all design, engineering, and project management to third-party EPCs, a lightweight CRM with basic proposal templates could be enough.
Large EPCs with custom internal systems: Some established Slovak companies have built proprietary software systems that already handle proposal generation, subsidy calculations, and financial modeling. If your internal tools work well and are actively maintained, migrating to third-party platforms may not offer meaningful advantages.
Projects with simple, standardized specifications: If you handle only cookie-cutter residential installations (same panel configuration, no battery storage, no complex financing), and compete primarily on price rather than proposal sophistication, basic spreadsheet workflows might still be workable.
The Tipping Point
Most Slovak installers find that proposal software pays for itself at 8-12 proposals per month. Below that, manual workflows are inefficient but tolerable. Above that, professional automation becomes essential to stay competitive on speed and accuracy.
Frequently Asked Questions
What is the best solar proposal software in Slovakia?
SurgePV is the best solar proposal software for Slovakia in 2026. It combines design-to-proposal workflows with Slovak net metering calculations, Environmental Fund subsidy integration (EUR 1,500-2,500/kW), Zelena domacnostiam vouchers, and battery storage economics at EUR 1,399/year. For pure visual polish, Aurora Solar produces more interactive proposals at a higher price point.
Can proposal software calculate Slovak subsidies?
Yes. SurgePV integrates Environmental Fund subsidies (EUR 1,500-2,500/kW) and Zelena domacnostiam vouchers into financial projections, showing pre- and post-subsidy payback periods in customer-facing proposals. Aurora, OpenSolar, and PV*SOL do not offer automated Slovak subsidy calculations.
How fast can you generate a solar proposal in Slovakia?
With SurgePV, a complete proposal including net metering analysis, subsidies, battery option, and payback period takes 15-20 minutes. Aurora and OpenSolar take 20-30 minutes. PV*SOL requires 30+ minutes plus manual proposal creation. Excel templates take 1-2 hours per project.
How much does solar proposal software cost in Slovakia?
Costs range from free (Excel) to EUR 2,900/year (Aurora Solar). SurgePV at EUR 1,399/year offers the strongest value as an integrated design and proposal platform with Slovak financial modeling. OpenSolar is approximately EUR 2,200/year. PV*SOL is EUR 950-1,900 as a one-time license.
Can proposal software model battery storage economics for Slovakia?
Yes. SurgePV and PV*SOL model battery sizing, self-consumption increase (30-40% without battery to 60-80% with), and storage economics for Slovak households at current electricity prices (EUR 0.18-0.24/kWh). This helps installers present the value case for storage alongside solar panels.
What should a Slovak solar proposal include?
A Slovak solar proposal should include system design specifications, net metering savings analysis, Environmental Fund subsidy impact, payback period (target 6-9 years without subsidy, 4-6 with), bill of materials with equipment specifications, battery storage options, DSO grid connection requirements, and warranty information.
Which proposal software supports EUR currency for Slovakia?
SurgePV, OpenSolar, and PV*SOL natively support EUR currency in proposals. Aurora Solar primarily generates USD proposals, requiring manual currency conversion for Slovak clients. Slovakia adopted the euro in 2009, so EUR-native proposals are essential for the market.
Is there free solar proposal software for Slovakia?
OpenSolar offers a lower-cost option but lacks Slovak subsidy calculators and net metering specifics. Excel is free but takes 1-2 hours per proposal and produces less professional output. SurgePV at EUR 1,399/year offers the best balance of speed, Slovak financial accuracy, and professional proposal quality for growing solar businesses.
Sources
- URSO (Regulatory Office for Network Industries) — Slovak energy regulation and tariff data. urso.gov.sk
- SEPS (Slovak Electricity Transmission System) — Grid connection standards. sepsas.sk
- Ministry of Economy of the Slovak Republic — Energy policy and NECP targets. economy.gov.sk
- Environmental Fund (Environmentalny fond) — Residential solar subsidy programs. envirofond.sk
- SIEA (Slovak Innovation and Energy Agency) — Zelena domacnostiam program. siea.sk
- IRENA (International Renewable Energy Agency) — Slovakia renewable energy statistics. irena.org
- Global Solar Atlas — Slovak solar resource data. globalsolaratlas.info
- European Commission — Slovakia Recovery and Resilience Plan. ec.europa.eu
- G2 Reviews — Verified user reviews for all platforms. Accessed February 2026. g2.com