---
title: "Photovoltaic Calculations — App Overview"
url: https://marlvel.ai/apps/photovoltaic-calculations
category: Productivity
developer: Egal Net di Ettore Gallina
platforms: ios, android
rating: 3.9 (288 ratings)
pricing: free
report_level: overview
generated: 2026-05-04
last_verified: "2026-05-04T08:55:01.332Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This app serves as a comprehensive, free technical calculator for field-based solar system design and performance estimation.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Productivity |
| Rating | 3.9 ★ (288) |
| Pricing | free |
| Platforms | iOS, Android |
| Latest Version (iOS) | 3.1.2 |
| Latest Version (Android) | 3.0.3 |
| Developer | Egal Net di Ettore Gallina |

<!-- SECTION: Summary -->
## What is Photovoltaic Calculations?

Photovoltaic Calculations is a utility tool designed for solar energy professionals and enthusiasts to perform technical site assessments and system sizing. It consolidates complex photovoltaic metrics, such as optimal tilt angles, string sizing, and inverter selection, into a single mobile interface.

<!-- SECTION: Key Features -->
## Key Features

- **System Sizing and Protection**: Provides tools for calculating DC cable size, protection device sizing, and string sizing for solar arrays.
- **Solar Geometry and Positioning**: Calculates sun position, optimal tilt angles, and solar radiation on tilted surfaces using integrated compass and tilt sensors.
- **Performance Analysis**: Evaluates module efficiency, temperature effects, fill factor, and long-term panel decay.
- **Technical Reference**: Includes educational resources on series and parallel connections, solar zenith, azimuth, and declination.

<!-- SECTION: Target Audience -->
## Who is it for?

Solar energy technicians, installers, and engineers requiring on-site technical calculations.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/photovoltaic-calculations/id6447060646?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=it.ettoregallina.calcolifotovoltaici&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/apps/photovoltaic-calculations)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/photovoltaic-calculations).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*