Premium Software Archelios CALC 2024 (PV Installation Calculation) Download 2026-01-29

Summary​

Archelios CALC is a specialized Software tool made for professionals in the photovoltaic (PV) industry to help with electrical calculation, sizing, and verification of complete solar installations. It is part of the Archelios suite alongside Archelios PRO, and was developed by Trace Software to provide clear, standards‑aligned electrical design for PV systems that span from small residential setups to large grid‑connected power plants. The software covers both DC and AC electrical sections of Solar Systems and includes automated checks for voltage drops, short‑circuit analysis, and protection coordination.

Deep Electrical Sizing Capabilities​

One of the strongest features of Archelios CALC is its ability to perform detailed electrical sizing for any type of photovoltaic installation connected to the public grid or configured for self‑consumption. The software provides a global view of the PV installation, from the photovoltaic modules through to the distribution network or energy panel. It supports both single‑inverter and multi‑inverter systems and automatically sizes cables and protections based on standards compliance and real‑time performance checks.

For example, it calculates the required cable diameters while considering voltage drop, current‑carrying capacity, and fault currents, ensuring the electrical system meets safety and operational criteria. Professionals can rely on this feature set to ensure that every component from the PV panels to the inverter to the AC grid connection is sized correctly and safely.

Normative Compliance and Standards Support​

A key reason engineers trust Archelios CALC is its built‑in compliance with electrical standards such as IEC 60364 and similar normative frameworks, which are essential for safe PV installations. The real‑time calculation engine performs normative controls, scanning the entire design for any non‑compliant elements and signaling potential safety issues before installation. The interface also includes a synthetic view that shows the entire system status at a glance and helps identify problem areas that require correction.

This is particularly useful when projects need to meet strict regulatory checks for permitting and inspection. The software’s checks help ensure that the installation adheres to all applicable standards, giving engineers confidence that their design will pass audits and control office reviews without surprises.

Documentation and Professional Outputs​

Beyond sizing and verification, Archelios CALC produces professional‑grade documentation that is necessary for compliance, review, and permitting. The tool generates single‑line diagrams, detailed calculation notes, and complete regulatory folders that can be exported in formats (such as PDF and DWG) suitable for submission to authorities or inclusion in technical reports.

These deliverables help installers and designers demonstrate that their PV system meets all necessary criteria and that calculations are traceable and transparent. The multi‑manufacturer equipment database with hundreds of components from modules and inverters to protection devices allows users to tailor the output documents with real part numbers and specifications, making the reports both accurate and professional.

Real‑Time Analysis and Safety Tools​

A standout capability of Archelios CALC is its real‑time calculation functionality, which continuously evaluates key electrical parameters and safety conditions as the project is adjusted. This includes checks for lightning risk, thermal and fault analysis, and surge protection sizing. These features provide engineers with actionable insights into how different design choices impact system performance and safety.

The software also includes options to analyze complex installations, such as those beyond 250 kVA or configurations with multiple strings and protections, allowing designers to explore a wide range of project types without leaving the interface. By combining calculation, safety checks, and visualization in one place, it helps ensure that installations are not only compliant but also optimized for operational reliability.

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