Solar Planner

Fully automated calculations for rooftop solar installations. Get the most accurate assessment of your rooftop potential. Free to use. Check supported areas

Rooftop identification

Through image recognition, our AI analyses your rooftop and for each section it identifies the area, slope and orientation.

Solar production

By considering the slope and orientation, the AI finds the potential solar panel production for each hour of a typical year at your particular location.


Given your consumption profile, the AI finds the economically optimal combination of solar panels and batteries, while respecting the area limitations of your rooftop.


What assumptions does SolarPlanner make in terms of prices, taxes, VAT, solar yield, and similar variables?

SolarPlanner continuously updates all the applicable regulations regarding taxes, transmission tariffs, distribution tariffs, and prices. As soon as a new regulation, VAT rate, or similar parameter changes, it’s immediately implemented in the SolarPlanner optimizer. If electricity prices vary in a particular country (like Denmark), we update the prices once a month based on the data from the last 12 months. We consistently ensure a correlation between the electricity prices and solar production to avoid overestimating results. The solar yield is calculated based on the specific location, orientation, and inclination of your rooftop. Even though the user interface describes orientation in general terms (west, south-west, etc.), our rooftop recognition module determines the precise orientation in degrees. Detailed explanations about the assumptions can be found here.

Can I get API access and implement it for research or commercial use?

Absolutely, API access is available for both research and commercial purposes. SolarPlanner offers two different APIs that can be used independently – one for rooftop recognition and the other for optimizing the setup of solar panels (and batteries). The starting price for commercial use, which applies to low usage of less than 100 requests per month, is 3 EUR + VAT for each API. Thus, the full use of both APIs would cost 6 EUR. We offer significant discounts for more frequent use. For research purposes, a lower price may be approved, but this is determined on a case-by-case basis. If you have any further questions, please submit an inquiry at

Which countries are currently fully supported?

Currently, Denmark and Slovenia are fully supported. In addition, our rooftop recognition feature is available for Estonia, Latvia, the Netherlands, and Poland. The optimization module for these countries will be available by September. We are also in the process of developing support for Austria and Germany, which we expect to launch in September as well. Are you interested in a specific country not listed here? Please contact us directly, and we can discuss the possibility of prioritizing that country in our development plans. The list of fully supported countries, as well as countries that are supported only for the rooftop recognition can be found here.

How can I use the Solar Planner?

You can use this product by providing either your address or coordinates (or selecting a point on the map) and your annual electricity consumption in kWh on the website [url]. After entering this information and clicking on the Start button, you will be directed to a dashboard where you can view the results. The product utilizes a three-step process to determine the optimal solar panel and battery configuration for your home. The first step involves analyzing your rooftop’s sides, slopes, and orientation using image recognition technology. In the second step, this information is combined with country-specific tax systems, electricity prices, and distribution and transmission prices to optimize the solar panel configuration. Finally, in the third step, the same process is repeated, but batteries are added to the configuration. You can rerun the calculation for different locations or additional structures, and you can store the results of the last five runs in your dashboard.

Is it possible to purchase equipment based on the calculations provided by Solar Planner?

Solar Planner’s calculations are more accurate than other online calculators as they are tailored to each specific case. In most cases, the results can be used to purchase equipment. However, 100% accuracy cannot be guaranteed, and common sense should be used when reviewing the results. It is recommended that you contact professional installers and electricians to set up the system. Additionally, the results can be used to estimate the cost of the system to ensure that you are not overpaying for the installation.

Is it possible to get an offer for solar panels and batteries based on the calculations made with the Solar Planner?

 Yes, it is possible. By clicking on the “Request an offer” button in your dashboard, a popup will appear with the optimal setup for your case already prefilled. You just need to enter your contact information in the form, and you will receive several offers. If you have multiple entries in your dashboard, make sure to choose the correct one in the dropdown menu before requesting an offer.

Are Solar Planner's calculations valid for a commercial, public building, or individual user cases?

Solar Planner’s calculations are only valid for individual users, as the tax system and prices used to optimise the configuration are specific to individual households. Therefore, for commercial, utility-scale, and public building cases, please contact Solar Planner directly through the provided link.

How can I receive an optimized setup for ground-mounted solar panels?

Solar Planner’s calculations are based solely on available rooftop space, and therefore, if you wish to receive an optimized setup for ground-mounted solar panels, you are more than welcome to contact Solar Planner directly through the provided link.

Can Solar Planner be used if I have historical electricity consumption data but plan to invest in an electric car and a heat pump in the near future?

While Solar Planner is working on implementing features such as automated smart meter data reading, heat pumps, and fast electric vehicle chargers, these features are not yet available. 

In the meantime, multiple analyses can be performed for different electricity consumption amounts to estimate the solar plant set up for the upgraded case. 

You can then add the amount of electricity usage you would expect with an EV and heat pump on top of your current usage. Thereby, the results will be based on such a (future) capacity needed.

The last five calculations are always available in your dashboard and the total electricity consumption for a specific run is written next to your address in the drop-down menu at the top of the dashboard. Thus, you can go back and forth between different calculations and compare the results.

How can I collaborate with Solar Planner if I am an installer company or sell solar panels and batteries?

To collaborate with Solar Planner, please visit the commercial tab and contact Solar Planner for further discussion.

What do different colors of my rooftop in Solar Planner platform mean?

The different colors in your rooftop image are separate rooftop sides. Moreover, four largest rooftop areas are presented in the table with a corresponding slope, orientation and area. Next to each row’s entry in the table you will notice a color marking that matches that specific rooftop side on the rooftop sketch. This is how you can know which measurements correspond to which rooftop side. 

On top of the colors designating different rooftop sides, the black color on the rooftop image is used to indicate the edges of the rooftop sides and any rooftop sides that are too small to be effectively utilized for solar panels.

Will Solar Planner's algorithm work for a new house built after 2018?

Unfortunately, Solar Planner’s algorithm is unlikely to successfully recognize houses built after 2018 using automated image recognition.

How is this product free?

Solar Planner receives a small referral remuneration for household-sized solar panels if a non-binding offer is requested. Commercial, utility-scale, and complicated projects that involve public buildings are charged.

In the future, additional optional products will be offered to improve the operational efficiency of the solar setup and optimize battery operation based on real-time market conditions, maximizing your revenue on a daily basis. However, the additional products will always be optional.

My house has many different rooftop sides, but I have received numerical values only four sides on my dashboard. Why is that?

The Solar Planner presents only the four largest rooftop areas in terms of area, slope, and orientation on your dashboard due to the simplicity of the presentation. Other rooftop sides will still be colored differently. In most cases, these four areas will also be optimal for solar panel installation.
However, the Rooftop Image Algorithm used by the Solar Planner has data for all rooftop sides. If users provide feedback that they would like to see more rooftop sides presented numerically, this feature will be implemented in the future.

Who developed the Solar Planner, and who owns it?

The Solar Planner is a software product owned by AI-nergy, a company based in Copenhagen, Denmark. AI-nergy develops software for various energy systems using AI techniques, advanced optimization, and modeling. All the algorithms used in the Solar Planner are the intellectual property of AI-nergy, and no third-party algorithms are utilized for the product. Platform development was partially financed by the project “Ensuring Electrical Energy in Case of Climate Extremes and Natural Disasters.” The project was funded by the European Fund for Regional Development.

The product’s development is also co-funded by the European Union’s Horizon Europe innovation actions programme under the SEEDS project, Grant Agreement n°101138211.

EU funded project

Interested in big-scale solar?

We provide custom made solutions for the planning and operational optimization of commercial and utility-scale solar plants. 

Commercial solutions