SolarPDTiếng ViệtGet the app

Solar design app for iPhone, iPad and Android

See your solar system on your own roof before you build it

Draw the roof, place panels, watch the sun move hour by hour and power flow into the house, the battery or the grid. Every number shows its source.

Get the appSee how it works
  • Sun position by NREL SPA
  • Weather from PVGIS-ERA5 and NASA POWER
  • Works offline

How SolarPD works

From the roof to every kWh

INV
Solar powerBatteryGridAppliances
  1. 1

    Draw the roof

    Pick the roof shape, size and orientation. Panels fill the usable roof area and avoid obstacles.

  2. 2

    The sun, hour by hour

    SolarPD computes the sun position for your site and date, then lights every panel, including shade from trees and neighbours.

  3. 3

    Energy flow

    Watch power travel from the roof through the inverter to your appliances, into the battery or out to the grid.

  4. 4

    Numbers with a source

    Hourly and daily yield with the model, data source and assumptions. Anything illustrative is clearly labelled.

Illustrative animation, not data from a real house.

Features

One app for the whole system

2D and 3D design studio

Drag panels, devices and wires on a 3D model of the house and see power flow on the roof.

Screenshot of the 3D house model with panels and power flow

Design on your phone

A touch interface for iPhone, iPad and Android.

Screenshot of SolarPD on an iPhone

No connection needed

Projects live on your device, save automatically and keep backups.

Sync across devices

Sign in to sync. When two devices edit at once, SolarPD keeps both versions.

Weather on the model

Sun, clouds and rain appear on the roof so you can compare yield.

Screenshot of the 3D model in rain

Wiring and checks

Suggested strings and wires, with warnings when devices don't match.

Screenshot of the 2D roof plan with wiring

Transparent calculations

NREL SPA for the sun position, PVGIS-ERA5 and NASA POWER for weather, with model limits stated.

Vietnamese and English

Switch language any time; numbers and dates follow each country's format.

Screenshots of a development build; the interface may change.

Beta preview

Coming soon to the App Store and Google Play

The app is in testing. Once released, the download buttons on this page will link straight to the App Store and Google Play.

Coming soon onApp StoreComing soon onGoogle Play

The mobile app is in testing and not yet released in the stores.