elec calc SOLAR allows you to design and size a photovoltaic installation as a complete electrical installation, from direct current through to AC usages and grid connection.

Built on the elec calc calculation engine, the software natively integrates the sizing of module strings, inverters and their MPPT inputs, together with the full associated electrical installation: switchboards, protections, cabling and site usages including EV charging, self-consumption and generic loads. Grid connection can be sized in low voltage or through an MV transformer.

Unlike standard PV simulation tools, which stop at the inverter or impose predefined circuit templates, elec calc SOLAR allows free-form modelling of the electrical architecture: every project reflects the installation exactly as it will be built, with no predefined scheme.

Engineering firms and installers work from a single model for the entire DC and AC sizing process, compliant with IEC 60364-7-712 and local low-voltage standards (AREI, BS, NEN, IEC).

PV modelling

• Free-form modelling of the PV field: strings, MPPT inputs, inverters, with no imposed architecture
• Intelligent string assignment with automatic MPPT range verification
• Automatic alerts on configuration inconsistencies
• Suited to all installation types: rooftops, carports, ground-mounted plants

Full electrical sizing

• Cable sizing and protection device calculation, DC and AC
• Power flow analysis with real-time visualisation
• Dynamic power balance
• Multi-source short-circuit current calculation
• DC and AC voltage drop control

Built-in compliance

• Automatic application of IEC 60364-7-712 (DC side)
• Compliance verification down to the point of delivery (AC side, per local LV standard: AREI, BS, NEN, IEC)
• Lightning risk analysis and DC/AC surge protection management
• On-diagram anomaly icons linking directly to the relevant standard reference

Grid connection

• Low-voltage sizing
• MV transformer integration
• Extension to MV networks by combining the SOLAR module with elec calc HT/BT, BIM or GRID

Database

• Over 12,000 manufacturer references: modules, inverters, DC and AC protections, surge protection devices
• Regularly updated database, with automatic recommendation of suitable equipment

Continuity with archelios PRO

• Direct import of the PV architecture (strings, MPPT, inverters) with no re-entry of data

Automated documentation

• Calculation reports, electrical diagrams and bills of materials generated in one click

Recommended configuration
Windows® 11, 32 GB RAM, minimum 20 GB free disk space, full HD display recommended (1920 x 1080), Intel® Core i5 processor minimum, internet connection required for installation and updates.