3.25K reviews
Content rating
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About this app

KOSTAL Solar App
The free KOSTAL Solar App offers professional monitoring of your photovoltaic system. You can conveniently and easily retrieve all functions from your smartphone or tablet at any time.
To set up and use the app, you need access to the KOSTAL solar portal and an inverter installed there. For the login of the app the same access data as for the solar portal are needed.

General information
With the KOSTAL Solar App, you can now conveniently monitor your solar systems while you are on the move or from your couch, and display relevant system data. You have the opportunity to access the consumption and generation data over different periods such as day, week, month and year, as well as access to the historical data of your plant. With this app, you are always up to date.
Download the free KOSTAL Solar App now and take advantage of the new and enhanced features.

Start page
On the start page, the current home consumption is shown graphically as well as percentage. You can immediately see from the diagram how your own home consumption is covered by PV, a battery or the public grid. A new feature shows you a 3-day forecast for generation and home consumption.
With a simple swipe action with your finger to "right" or "left" on the individual tiles, you can view more areas. By clicking on the drop-down arrows, you can display extended dates or periods.

Last data
Under the "Last Data" the last live values of the last transfer to your installation are displayed to the KOSTAL (PIKO) Solar Portal. The new diagram shows the home consumption [W], the feed in [W], the generation [W], as well as values relating to a battery.
If you do not have a own battery yet, you can use the KOSTAL Solar App to activate a virtual battery and see the resulting savings. Try it for yourself and see what the Virtual Battery calculates.

Under "History" you can graphically display the historical data of your plant. Here you can switch between the daily, monthly, annual and total values of domestic consumption and production. You can switch these views of house consumption and generation again with a "swip action".
The highlight of the KOSTAL Solar App is the virtual battery, in which you can select a desired capacity and calculate an individual forecast.
In the lower area you will see an overview of your respective values (home consumption / production). The data from the last available periods are compared in weekly, monthly or annual sections. Thus, you can immediately see if your income has increased or decreased compared to previous years.

In addition, with the KOSTAL Solar App, you have the option of managing and monitoring all your systems from the KOSTAL (PIKO) Solar Portal on your mobile device. Under the settings there is an explicit selection option with which you can decide for yourself which plants will ultimately be displayed in your selection list and which not. Sharing events or sharing information with friends is also easy. Post or publish your current earnings or total production from the last month. Show friends and relatives what benefits your solar system brings to your daily life.
Updated on
Feb 27, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.08K reviews
Rich Costabile (Rich)
January 1, 2024
The upgrade process has been riddled with impediments to using the app over the past couple of months. Now, when I try to open it, it says upgrade required. I click on the upgrade button and it goes back to google play, where the only options are to open or uninstall. I did each of those and still no go after reinstalling. Get it together, folks. Thanks!
9 people found this review helpful
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KOSTAL Solar Electric GmbH
January 16, 2024
Hallo! Die Wartungsarbeiten der KOSTAL Solar App sind voraussichtlich im Laufe der KW03 abgeschlossen. Ab Mitte dieser Woche starten wir, die App nach und nach für unsere Nutzer freizuschalten. Am 22.01.2024 folgt ein weiteres Update. Wir sind uns der Situation bewusst und bitten um Verständnis. Danke für Ihre Geduld!
Bjørn Olsen
February 3, 2024
The app is slowly getting up to speed after their overhaul. Only current problems are that the graph resolution cannot be changed and that the "Plant installed power" field is labeled as kWp but actually is Wp.
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Norman Kiesslich
January 1, 2024
As other reviewers have noted before, the app is now effectively down. It is pretty obvious that their IT Team is fairly inexperienced and lacking professional leadership and proper QA/QC procedures. I work in IT myself and find it difficult to believe that anyone would issue a new release before a period of public holidays. When it was still working, I also noticed design issues in the app. I hope their engineers are more professional. Despite all this, I wish them well and hope they'll improve
11 people found this review helpful
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KOSTAL Solar Electric GmbH
January 5, 2024
Thank you for your feedback! The KOSTAL Solar App is currently in maintenance mode and is expected to be released again in the course of CW02. In the meantime, please use the solar portal at www.kostal-solar-portal.com. We apologize for the inconvenience. We are grateful for your patience and understanding.

What's new

-Bug Fix for cases where App crashed