PVTools: Free NEC-Based Solar PV Utility Software for Engineers & Installers

solar pv software
Solar PV String Drawing

Introduction

Not every solar task requires full-scale simulation software. Often, engineers and installers need fast, reliable utility tools to solve specific problems—such as conductor sizing or PV string visualization.

PVTools is a completely free utility software developed to support solar professionals, students, and enthusiasts with essential NEC-based calculations and visual tools. Utilities provided in PVTools are basically part of the major software PVBytes provided at  https://electnology.com/pvbytes. These tools have been extracted and provided as separate utility for the solar community.

👉 Access PVTools here: https://electnology.com/pvtools

What Is PVTools?

PVTools is a lightweight solar PV utility platform offering quick, practical tools that help users:

  • Save time on routine calculations
  • Reduce manual errors
  • Improve clarity in system layouts

No licensing. No cost.

Key Features of PVTools

🔹 NEC-Based Conductor Size Calculator

Correct conductor sizing is critical for safety and compliance.

PVTools includes built-in National Electrical Code (NEC) algorithms that allow users to:

  • Calculate conductor sizes in seconds
  • Reduce risk of under-sizing or over-sizing
  • Improve compliance with U.S. electrical standards

This tool is particularly useful for:

  • Preliminary design checks
  • Field engineers
  • Students learning NEC rules
solar pv calculation
PV System Conductor sizing

🔹 PV String Drawing on Google Map

Visual clarity is essential for planning and communication.

With PVTools, users can:

  • Draw PV strings directly on Google Maps
  • Visualize string routing and layout
  • Save images for reports, proposals, or discussions

This feature is ideal for:

  • Site planning
  • Client presentations
  • Educational demonstrations

Who Should Use PVTools?

PVTools is designed for:

  • Solar installers
  • Electrical engineers
  • Solar design students
  • DIY solar enthusiasts
  • Trainers and educators

It serves as a perfect companion to advanced software like PVBytes—or as a standalone utility for quick tasks.

Why PVTools Is Completely Free

PVTools was developed to:

  • Support solar adoption
  • Encourage best engineering practices
  • Provide easy access to NEC-based tools

By removing barriers, PVTools helps grow the solar ecosystem while introducing users to more advanced solutions when needed.

Conclusion

Whether you need a quick NEC conductor size check or a simple way to draw PV strings on a map, PVTools delivers fast, accurate results—at zero cost.

👉 Start using PVTools now:
https://electnology.com/pvtools

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