Discover all the powerful features that make HEC SOLAR Calculator the ultimate toolkit for solar installers, construction professionals, and electricians in Bulgaria.
Professional solar calculations for optimal system design
Calculate the exact number of solar panels needed based on energy consumption and available roof space.
Estimate daily, monthly, and annual energy production based on system parameters and location.
Comprehensive financial analysis including payback period, 25-year savings, and ROI percentage.
Calculate optimal battery storage capacity based on autonomy requirements and system specifications.
Professional tools for construction materials and electrical installations
Calculate concrete volumes for slabs, columns, beams, and footings with material breakdown.
Calculate rebar weights for different diameters and lengths with precise formulas.
Estimate paint quantities for walls and roofs with coverage rates and wastage factors.
Determine optimal cable sizes based on current, voltage, and installation method.
Calculate voltage drop for single and three-phase systems with material considerations.
Properly size circuit breakers based on load characteristics and safety factors.
Professional cost estimation and project management tools
Live material prices for accurate cost estimation with regular updates.
Calculate labor costs with worker-day rates and project duration estimates.
Generate professional PDF quotations with your company logo and detailed breakdowns.
Calculate profit margins and determine optimal selling prices for projects.
Essential tools for professional site work
Calculate optimal panel tilt angles for maximum energy production throughout the year.
Find true south for optimal panel orientation using device sensors.
Comprehensive unit conversion for length, area, volume, weight, and power units.
Essential tools including torch, spirit level, and ruler for professional site work.
Download the complete toolkit and start calculating like a professional