For Installers and Portal Operators

Solar-Log™ WEB-4U - Services around the Online Portal

Your Advantages

With the Solar-Log™ WEB-4U, we offer services related to all aspects of the Solar-Log WEB Enerest™ online portal. With our years of experience that we have gained around the world with 293,041 installed Solar-Log™ devices, we have the know-how along with proven, reliable technology to meet any challenge.

If desired, we can take care of additional functions, for example the complete configuration of the portal Solar-Log WEB Enerest™ XL as well as the recording and set up of PV plants.

Our Specialists

  • support you with years of experience and extensive know-how
  • immediately detect occurring errors
  • perform any necessary modifications per remote (after consultation)
  • create upon request customized reports for you and your customers
  • provide you with important information for troubleshooting
  • allow you to use your precious time effectively


Let us take care of your PV plant monitoring. Our service professionals receive regular training and have extensive practical experience.


Security is our top priority. Our portal is hosted on German servers that are powered completely by renewable energy.


Use our experience to ensure your success. We have been developing successful solutions for our customers worldwide for over 10 years.

Customer Feedback

Reiner Stauss - General Manager of ezee Energy GmbH

Our customers' plants are monitored by Solar-Log GmbH, the monitoring specialist. With the Solar-Log™ WEB-4U service, Solar-Log GmbH takes care of everything with the Solar-Log™ WEB online portal. They monitor the operation data because fault-free operation of customers' PV plants and professional support are our top priorities.

Do you have any questions?

Your Contact Person

Mr. Steve Poussard

Solar-Log™ WEB-4U International
Sundays Data Systems
66, rue Jacques Mugnier
68200 Mulhouse
Telephone: +33 389 456 192