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Design That Fits Your Workflow

Lyra is a fast and powerful residential PV solar design tool and permit package generation platform.
Create and export permit-ready design plans of any complexity.

How it Works

Create a code-compliant design in a few quick steps

Trace individual roof faces or import a full roof plan and then design a system that is compliant with adopted electrical, fire, and other codes. Create a concept design that is permit-ready in just a few minutes.



Create a PV system design for an on-demand permit package

With Lyra, you can choose the degree of detail that works best for you workflow and meets your client's needs–from layout-only to complete permit-ready designs.


Flexible Site Definition

Define individual roof faces or complete roof plans


Quick and Flexible PV Concept System Design 

Create a design in as little as a few minutes

Design the layout you want


Generate a default layout that’s optimized to maximize coverage, then easily customize it as much as you want. Individual modules can be repositioned and rotated for highly customized mixed portrait/landscape layouts. The tool generates fire code-compliant ventilation setbacks and fire access pathways that can also be modified with ease.

Comply with fire codes


Lyra generates fire-code compliant ventilation setbacks and fire access pathways that can also be modified with ease. The intelligent design creation is based on the adopted fire code, roof edge types, PV module placement, and the location of the nearest street and driveway.

Create electrically-valid module strings


Our intuitive yet powerful interface makes your life easy by supporting conventional string inverters, microinverters, and inverters that require optimizers. While stringing modules isn’t required for a minimally viable concept design, Lyra makes it quick and easy while ensuring that stringing conforms to adopted electrical codes and product manufacturer requirements.

Energy production estimates


We use the latest version of PV Watts to reliably model estimated energy production. Lyra allows you to fine tune system loss parameters.

Add an energy storage system


Add an energy storage system to the design. Just as with PV module strings, Lyra makes it easy while ensuring the PV + ESS configuration conforms to adopted electrical codes and product manufacturer requirements.



Design with confidence, knowing that Lyra stays up to date on the latest building codes

Upgrading a concept design to a permit-ready design is a quick two-step process. It’s simple to add racking hardware, disconnects, combiners, transition boxes, OCPDs, conduit, and conductors. Lyra will ensure the design complies with the applicable electrical codes.

To see a full list of codes that we support, please see our Help Center article titled “Electrical, Fire, and Structural Codes”.

Lyra supports:

Electrical Codes
  • NEC 2011
  • NEC 2014
  • NEC 2017
  • NEC 2020
  • NEC 2023
  • CEC 2019
  • CEC 2022
Fire Codes
  • IFC 2015
  • IFC 2018
  • IFC 2021
  • NFPA 1 2015
  • NFPA 1 2018
  • NFPA 1 2021
  • CFC 2019
  • CFC 2022
Structural Codes
  • ASCE 7-10
  • ASCE 7-16
  • ASCE 7-22

Detailed Design Documents

Everything you need to create a permit-ready PV system design

Concept Design Plan

Output a branded professional plan set with a site plan, system components, electrical and mechanical properties, and plan images attached.

System Datasheets

Create a customized and branded data sheet using your company colors and content. Include a site plan, system components, electrical and mechanical properties, and plan images.

Design Validation Report

Generate a report that validates the electrical design at the concept stage.

Bill of Materials

Get a precise component list from racks to panels, inverters, and all balance of system components—all items that are useful for estimating, planning, and procurement purposes.

I'm only using [another product] for shading right now. Your design tools are far superior.


We’re happy to answer your questions.

Book a demo today and see how to add rocket fuel your engineered designs