SundialEV

SundialEV

Smart Charger for your EV

7 ratings
6 reviews
Free

Details

  • Released
  • Updated
  • July 2, 2026
  • September 21, 2026

Features

SundialEV screenshot #1 for iPhone
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SundialEV screenshot #9 for iPhone
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About

This app intelligently directs surplus solar energy to charge your electric vehicle instead of sending it back to the grid. It helps users save money by avoiding high electricity buy-back rates and utilizing cheaper off-peak charging times. The system is designed for a set-and-forget experience, integrating with existing EV and solar hardware.

✓Charges EV with surplus solar
✓Avoids grid export for low rates
✓Set charging floor and battery reserve
✓Works with all Tesla models
✓Coordinates with Powerwall
✓Utilizes off-peak charging
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What's New in SundialEV

1.12.5

September 21, 2026

Charge on your own sunshine. New: pick an exact charge level, pause with one tap and keep your savings history, plus a cleaner Settings menu.

User reviews

Great App, excellent service!

I have 2 Tesla vehicles & Tesla solar, but no home batteries. I got this app after a similar one closed down. I needed one that only uses excess solar to charge my car. I had a couple questions when I started, emailed support & got an immediate response. Some then we’ve exchanged emails 5-6x. Brian’s has done his best monastery questions & improve my user experience.
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Great app

Works to utilize my solar to charge my car! I have it set up so I don’t draw from the grid to charge my car (free fuel!) Very customizable and great developer that listens to feedback and implements meaning changes

Extremely flexible

Provides an amazing amount of control for how and when you charge your vehicle. Supports charging rates and schedules across both solar and grid charging. Support is also very responsive to any needs or suggested features.

Fantastic support

Has worked well. Does just what it needs to do and the support has been great. Helps redirect excess solar energy to charge your car rather than the grid.

No charge on solar no problem

This app makes charging for the most part easier especially if you only want to charge on excess solar

Developer apps

FAQ

What is SundialEV?

SundialEV is a utility app that automatically charges your Tesla using surplus solar energy from your rooftop panels. It aims to save you money by preventing low-value grid exports and utilizing cheaper charging times.

Does SundialEV have ads?

No, SundialEV does not contain advertisements. It is a free application designed to provide a seamless user experience without interruptions.

What devices does SundialEV support?

SundialEV is currently available for iPhone. It is designed to work with all Tesla models and existing solar power systems, including Powerwall.

How does SundialEV save users money?

SundialEV saves money by diverting excess solar power to your EV instead of selling it to the grid at low rates. It also prioritizes charging during cheaper off-peak electricity hours.

Can I customize charging with SundialEV?

Yes, SundialEV offers set-and-forget customization. You can establish a charging floor and a battery reserve, and the app will manage the rest automatically.

Is SundialEV compatible with older Tesla models?

Yes, SundialEV works with every Tesla model, not just the newest ones. This ensures broad compatibility for a wide range of EV owners.

How often is SundialEV updated?

SundialEV was last updated on July 2, 2026, with version 1.0. This indicates it is a new application with ongoing development expected.

What is the user rating for SundialEV?

SundialEV has a perfect rating of 5.0 stars based on one review. This suggests a highly positive initial user reception.