Get the complete HEC SOLAR Calculator app for free. No subscriptions, no hidden fees, no ads - just professional tools for professional results.
Calculator Modules
Active Users
Average Rating
% Offline
Complete Professional Toolkit
No subscriptions, no hidden costs
Professional solar system design and quotation
Electrical calculations and cable sizing
Material calculations and cost estimation
Accurate calculations for home projects
Professional tools that save time, improve accuracy, and boost your business
Complete calculations in minutes that would normally take hours. Generate professional quotes instantly.
Eliminate calculation errors with ISO & NEC compliant formulas. Get precise results every time.
Access all calculators and tools without internet connection. Perfect for remote job sites.
Generate PDF quotations and reports with your company branding. Impress clients with professional documentation.
Manage unlimited projects with photos, notes, and calculations. Keep everything organized and accessible.
No ads, no data collection, no unnecessary permissions. Just pure functionality for professional use.
Trusted by solar installers and construction professionals across Bulgaria
Solar Installer, Sofia
"This app has completely transformed how I prepare quotes. The ROI calculator alone saves me 2 hours per project. Clients are impressed with the professional PDF reports."
Electrician, Plovdiv
"The electrical calculators are spot-on. Cable sizing and voltage drop calculations are now instant and accurate. No more manual calculations with tables."
Construction Engineer, Varna
"Working offline is crucial on construction sites. The material calculators and cost estimation tools are professional-grade and incredibly reliable."
Join thousands of Bulgarian professionals who trust HEC SOLAR Calculator for their daily work
Available on Google Play Store