Playfully easy to the Lead

With our online calculator, suppliers of PV systems or battery storage devices can automatically generate leads of prospective buyers on your own home or landing page.

Users interested in purchasing can use the solar or battery computer to quickly make an approximate design of their future system. The result is a concrete product recommendation based on the design assumptions you have specified.

After registration with name and e. g. e-mail address the user receives information about yield, profitability and costs or an indicative offer. Any financing models such as purchase, lease or credit can be taken into account.

The user’s contact data and the data collected during the interpretation process are recorded and made available for the further distribution process.

sample videos

Design of battery storage for Hycube

Solar calculator for Sunfarming

Solar calculator for Energis

Flexible team player

Our lead generators can be adapted to your individual needs with minimal effort.

IT infrastructure

Thanks to server/client architecture with API, the frontend can be integrated into any CMS. Only HTML and Javascript are used.

You can easily access the API from any number of different websites (e. g. different landing pages)

Frontend Design

Thanks to API you have the choice of having the frontend with user interface created by your web agency or by us with the help of our modular system.

The frontend can be designed as required, only the data necessary for the calculation must be determined.

PV and/or battery storage

You can choose between online computers to design and calculate the yield of PV systems for grid feeding or for battery storage. Both variants can also be combined.


All calculations are carried out in the frontend. Only the specific irradiation data are calculated on the server side and queried via the API. Any calculations can be made on the basis of existing data: Lease models, economic efficiency, degree of self-sufficiency, share of own consumption, CO2 savings are just a few typical examples.

The consumption profiles used in the calculations are realistic and are based on research by HTW Berlin. All important variables and default values can be adjusted at any time via a backend.

product recommendations

Based on the calculated results, specific products are offered either as packages or freely configured.

Product data can be transferred directly from your ERP system via an individual interface or can be created in the backend.

result presentation

The results of the design and further calculations can be supplemented graphically with bar and pie charts (also as dynamic live diagrams).

On request, an indicative offer can also be created and made available as a PDF, for example.

data exchange

The resulting lead data (including the calculated results) can either be transmitted by e-mail or an individually adapted interface can be used to connect directly to your CRM system.

No processing of order data is necessary, as personal data are only stored in your system and can only be viewed there.

The successful models

Even though the user interface can be designed completely freely and individually, two typical implementation variants have prevailed so far – a quick layout with minimal user input and a detailed design via our Google Maps module.

Both variants can also be combined to a two-stage model. This represents a perfect compromise between fast results with minimal interaction and detailed planning.

quick design

The user enters only his electricity consumption and electricity price as well as his postal code and receives a product recommendation including profitability calculation based on this data and a given orientation/roof inclination.

detailed design

The user enters power consumption/household size, electricity price and address and chooses a consumption profile.

It then marks the relevant roof surface and the lower edge of the roof in our Google Maps module. In addition to the size and area, it is also used to determine the roof orientation.

If desired, the module assignment can be displayed and edited. This means that individual modules can be clicked away or added.

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References Software Tools