# Sun Hours for Solar Panels — Solar Forecast in 8 Seconds

> UK solar generation forecast and smart appliance scheduling for solar owners. (iPhone/iPad app by Andy Mesa.)

- Source: https://appshunter.io/ios/app/sun-hours-for-solar-panels/id6773940001 (this page in markdown: same URL + `.md`)
- Developer: [Andy Mesa](https://appshunter.io/developer/1851743474)
- Category: Weather, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 58 MB
- Languages: American English
- Released: 2026-06-02
- Data updated: 2026-09-08
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sun-hours-for-solar-panels/id6773940001/reviews.md

## What is Sun Hours for Solar Panels?

Will your panels generate anything today? Sun Hours tells you in 8 seconds — just your ZIP/postal code or map pin and your best-ever solar day. No inverter login. No azimuth. No account. No engineering degree.

THE FORECAST
Today's expected kWh before your coffee is ready. An hour-by-hour generation curve shows exactly when your panels peak. Get a 7-day solar forecast with cloud cover and efficiency for each day, plus a 30-day view built from historical weather at your exact location — so you understand your site's full seasonal rhythm, not just this week.
SOL
Every morning, Sol — Sun Hours' pixel-art sun mascot — delivers a personal forecast for your panels before you've touched a chart. When today's forecast matches your all-time best generation day, Sol sends a notification: "It's a 100% day." The solar equivalent of a perfect score.
SUN HOURS ALERTS
Optional morning notifications tell you the day's best two-hour solar window. "Best window today: 11 AM–1 PM." Charge the EV, run the dishwasher, or power another appliance with your own free electricity instead of the grid.
SMART APPLIANCE TIMER
Tell Sun Hours which appliances you use. It tells you exactly when to run each one during your solar peak. Washer, dishwasher, dryer, EV top-up — scheduled around your free generation, not your habits.
TRAVEL MODE
Portable panels on an RV? Camping with a folding kit? Drop a pin anywhere or use GPS to get a solar forecast for that exact location. One tap takes you back to your home setup.
WORKS WITH EVERYTHING
Hoymiles, Deye, Marstek, Envertech, APS, Solis, Growatt — and every other rooftop or plug-in setup. No inverter integration needed. If it generates kWh, Sun Hours can forecast it.

Free to use. Infrequent, closable ads. No account. No tracking. Your location never leaves your device.
Built in the UK for solar owners everywhere — by someone who got tired of apps making a simple question complicated.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://sunhours.app/privacy

## Key features

- 8-second solar generation forecast
- Hourly and 7-day generation curves
- 30-day historical weather view
- Personalized daily forecast alerts
- Smart appliance scheduling
- Portable panel forecasting (Travel Mode)
- Works with all UK solar setups

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| No Ads - Lifetime | $0.99 | one-time |
| Sun Hours Pro - Lifetime | $7.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/sun-hours-for-solar-panels/id6773940001/reviews.md

### 5/5 — So easy to set up and monitor

*2026-06-29*

Took me 3 seconds and nice to look at

### 5/5 — Track the best hours for panels

*2026-06-22, version 1.5*

Handy tool that lets me see when to put the washing machine on! Useful to confirm when the best times are for my panels, especially when in the camper

### 5/5 — Makes checking panels fun!

*2026-06-21, version 1.5*

Great for checking how panels are doing. Nice and simple.

### 5/5 — So useful and easy!

*2026-06-16*

Easy to set up and the results are genuinely nice to look at.

**Developer response:** Thanks for the feedback. Glad you’re finding the solar PV tracker useful.

## Frequently asked questions about Sun Hours for Solar Panels

### Does Sun Hours have ads?

Yes, Sun Hours contains advertisements. These are infrequent and can be closed.

### What is the price of Sun Hours?

Sun Hours is free to use. There are no upfront costs to download or use the core features of the application.

### How often is Sun Hours updated?

The latest version of Sun Hours is 1.7, and it was last updated on July 2, 2026. This indicates a recent update cycle.

### What devices does Sun Hours support?

Sun Hours is available for iPhone, iPad, and iPod. It is designed for iOS devices.

### What is the age rating for Sun Hours?

Sun Hours has an age rating of 4+. This suggests it is suitable for a wide range of users, including children.

### How does Sun Hours forecast solar generation?

Sun Hours uses your postcode and historical weather data to provide an hour-by-hour generation curve and a 7-day forecast, including cloud cover and efficiency breakdowns.

### Can Sun Hours forecast for portable solar panels?

Yes, Sun Hours features a 'Travel Mode' that allows you to get accurate solar forecasts for any location by dropping a pin or using GPS, ideal for campervans or portable kits.

### Does Sun Hours require an account or inverter login?

No, Sun Hours does not require an account or inverter login. It is designed for simplicity and privacy, with your location never leaving your device.

## Version history (last 5 releases)

### 1.8 — 2026-08-05

Sol Insights can now be provided by Apple Intelligence (available in Beta in settings if you have a suitable device)
A new optional push notification for a Sunday Digest, get a quick glimpse of how the week ahead is looking for your solar panels generation.
The home screen now provides a sun indicator so you can see how the solaruk week is looking with a nice visual.

### 1.7 — 2026-07-02

Improvements keep coming!
A new Sun Hours Heatmap - see at a glance when your panels were working their hardest for you. 

The Accuracy card shows you how accurate Sun Hours currently is compared to your actual generation numbers.

The Energy flow screen visualises how your home set up is currently flowing.

Please keep the feedback coming.

### 1.6 — 2026-06-30

The weather model keeps improving, now you can help. In Beta, you can inout your actual generation data versus Sun Hours predictions to get a Forecast Accuracy scorecard.

You can also see a visual representation of your Energy Flow. 

Any feedback gratefully received via Feedback in settings.

### 1.5.2 — 2026-06-26

This update tidies and extends your solar forecast across iPhone, widgets and Apple Watch.

- The 7-day forecast now shows today plus the next seven days.
- The 30 Day Projection now follows on neatly after the weekly forecast.
- Forecast card spacing on iPhone has been refined so final rows line up cleanly.
- iPhone widgets and Apple Watch now have calmer sky backgrounds, with twinkling night stars and gently moving daylight gulls.
- Sol Insights now includes panel-cleaning guidance to help spot when output could improve.
- Apple Watch and home-screen widgets show clearer weather signals, especially around windy days.
- Long-press the app icon on iPhone to jump straight into Appliance Timer.
- Support emails now include your app version automatically.
- Pixel Sol has new seasonal welcome animations, starting with Football.

### 1.5.1 — 2026-06-23

- I've improved the weather model - the weather model improves with every release with my own data. 
Optionally, you can now help - Join Solar Wars!
- New Apple Watch app, Sol lives on your wrist now.
- Solar Insights - get the headlines from Sol for the coming week.
- Now available in German and Spanish, Hola!

## More apps by Andy Mesa

- [Overtime Live - Shift Tracker](https://appshunter.io/ios/app/overtime-live-shift-tracker/id6755075589)
- [Landlord Assistant: Rent](https://appshunter.io/ios/app/landlord-assistant-rent/id6777530304)
- [Outflow: Subscription Tracker](https://appshunter.io/ios/app/outflow-subscription-tracker/id6779691937)
- [Rep Bank: Beginner Gym Coach](https://appshunter.io/ios/app/rep-bank-beginner-gym-coach/id6787167487)

All apps by Andy Mesa: https://appshunter.io/developer/1851743474

## Related topics

[solar panel battery](https://appshunter.io/ios/topics/solar-panel-battery) · [balcony solar](https://appshunter.io/ios/topics/balcony-solar)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*