Solar-Log

Solar-Log is a German maker of PV monitoring, energy management and grid connection technology, operated by Solar-Log GmbH of Geislingen-Binsdorf. The home page presents the range as monitoring, energy management and grid connection from one source, with the Solar-Log WEB Enerest monitoring platform as the entry point.

It says the products are compatible with more than 3,000 components and describes the company as a pioneer and leading manufacturer of PV monitoring and related services. The setup includes on-site hardware, since the page refers to a Solar-Log Base device that receives firmware updates. The home page lists no plans, prices or trial, and its navigation links to a demo portal and a shop. The imprint names two managing directors and states no parent company or shareholders.

• Monitoring platform. Solar-Log WEB Enerest is named as the entry point to the monitoring side. The pages we read do not list its dashboards or report types.
• Component compatibility. The vendor states that Solar-Log is compatible with more than 3,000 components, and keeps a component database and a firmware database for support.
• Remote configuration. A remote configuration service reduces on-site visits. For an installer with plants spread over a wide area, this can save travel time.
• Modular expansion. The setup can be expanded in modules and offers integrated interfaces for direct marketing control. It fits operators who sell power directly.
• Feed-in management. Feed-in management is listed as a product line next to smart energy and charging-park management. The page gives no technical detail.
• Existing plant integration. Existing plants can be integrated into one platform for all tasks and plants, according to the home page.
• Hardware portfolio. The range includes the Solar-Log WEB-4U device and a hardware portfolio with licences. The pages we read give no model list.

• Installers with mixed plants. An installer who maintains plants built from many component makes can use the stated compatibility with more than 3,000 components and the component database.
• Direct marketers of power. Operators who sell power directly can use the integrated interfaces for direct marketing control, listed as a named function on the home page.
• Operators of charging parks. Operators who combine PV with charging infrastructure can look at the smart energy and charging-park management line, which the home page lists without detail.

The home page lists no plans, prices or trial. Its navigation links to a demo portal and a shop, and the pages we read show no details for either. A first step is therefore to open the demo portal and ask the company which hardware an existing plant requires.

The monitoring setup includes on-site hardware, because the page refers to a Solar-Log Base device that receives firmware updates, and the page does not state where monitoring data is processed. The vendor says remote configuration reduces on-site visits and that existing plants can be integrated into one platform. The pages we read describe the product lines rather than a setup procedure, so commissioning steps are not documented here.

Solar-Log GmbH of Geislingen-Binsdorf builds monitoring around an on-site Base device, with the WEB Enerest platform as the entry point. The home page claims compatibility with more than 3,000 components and offers remote configuration to cut site visits, plus feed-in management and direct marketing interfaces.

The range includes a hardware portfolio with licences. The pages read show no prices or trial, and do not say where monitoring data is processed.

Solar-Log is entry #2 of 14 in the solar monitoring platforms list: the products next to it are Tigo Energy above and Meteocontrol below. Top-three spots are set aside for challengers, and Solar-Log holds one of them; read it as a position, not a grade.

By headquarters, 4 of the 14 are established in Europe, as Solar-Log is in Germany.

The home page describes one family: monitoring, energy management and grid connection.

Named functions include modular expansion, a component database and a firmware database used for support, and a remote configuration service that saves visits.

Existing plants can be brought into one platform for all tasks.

Other lines cover charging-park management and the WEB-4U device.

In the catalogue: Quoted per project; demo portal and shop linked, no price list on the pages read.

The pages we read list no prices. The home page shows no plans and no trial, and its navigation links to a demo portal and a shop. We did not see details for either, so we cannot say whether the shop shows prices or whether the demo portal is open to anyone. The range includes a hardware portfolio with licences and the Solar-Log WEB-4U device, which suggests that cost combines devices and licences, but the pages do not spell out the model. Buyers should therefore ask Solar-Log GmbH for a quote per project, including what the licences cover and how long they run, before comparing the offer with platforms that publish annual per-site prices.

Where this comes from: the vendor pages at solar-log.com, checked for Best Solar Monitoring Platforms in 2026 on 13 November 2026.

The home page does not state where monitoring data is processed and lists no certifications. It refers to a Solar-Log Base device that receives firmware updates, so part of the system runs on hardware at the plant.

The operating company is Solar-Log GmbH, registered at Fuhrmannstraße 9, 72351 Geislingen-Binsdorf, Germany, in the commercial register HRB 722895 of the Amtsgericht Stuttgart. The imprint names Jörg Niche as CEO and Marco Oesterlein as CPO and makes no statement about ownership. For data residency questions, a buyer needs to ask the vendor directly.

Integrations the vendor names (9):

• Solar-Log WEB Enerest
• Solar-Log Base
• Solar-Log WEB-4U
• Direct marketing interfaces
• Feed-in management
• Smart energy management
• Charging-park management
• Component database
• Firmware database

5 products in this guide come closest to Solar-Log on tags, pricing and region.

• Meteocontrol (#3 of 14): Augsburg operator of VCOM Cloud for portfolios, maintenance tickets and reporting.
• GoodWe SEMS Portal (#6 of 14): Monitoring portal for GoodWe inverters with separate owner and installer accounts. Best for: Installers and EPC firms with GoodWe-only fleets and several customer accounts. (China)
• Hoymiles S-Miles Cloud (#7 of 14): Panel-level monitoring with one-second updates and drag-and-drop layouts.
• Growatt ShinePhone (#9 of 14): Several apps and web portals split by Growatt product line. Watch out: the pages describe the app split differently, so matching app to inverter needs checking.
• SMA Sunny Portal (#11 of 14): German inverter maker's portal with fault analysis and portfolio grouping. (Germany)

Read from the vendor’s own pages on 12 November 2026.

• solar-log.com/impressum: Company, address, register entry, managing directors, absence of ownership statement
• solar-log.com: Product lines, 3,000 components, remote configuration, Base device, absence of prices
• solar-log.com: Demo portal and shop links without details
• solar-log.com: Self-description as pioneer and manufacturer

We rank on what separates products after the demo: time to useful, the real price, the exit and who the product is for. Solar-Log ends up at #2 among 14. Method and commercial relationships are in our editorial process.