Increase the revenue of your solar plant, today.
With The Curtailer you take control over your solar production. We automatically shut down before the price goes negative, instead of feeding the grid for nothing. Whatever your business model, The Curtailer follows your rules.
The Curtailer works in 29 European countries
A 1 MWp solar plant could have saved €1.32k in a single day
By curtailing 5.79 MWh of the gross 6.44 MWh produced that day (01 May 2026).
Run your own simulation →A 1 MWp solar plant could have saved €1.23k in a single day
By curtailing 5.55 MWh of the gross 6.31 MWh produced that day (26 Apr 2026).
Run your own simulation →A 1 MWp solar plant could have saved €988.73 in a single day
By curtailing 6.07 MWh of the gross 6.66 MWh produced that day (11 May 2025).
Run your own simulation →A 1 MWp solar plant could have saved €620.15 in a single day
By curtailing 5.82 MWh of the gross 6.36 MWh produced that day (25 Apr 2026).
Run your own simulation →A 1 MWp solar plant could have saved €541.75 in a single day
By curtailing 5.35 MWh of the gross 6.55 MWh produced that day (27 Apr 2025).
Run your own simulation →Hover or touch the chart to explore the day
Why curtail?
Increasing revenue for your solar assets by:
Export pauses automatically before the price drops deep negative, so a bad price hour never turns your own production into a cost.
Stop feeding the grid the moment it's no longer worth it - production that falls outside SDE++ support or any workable tariff.
How it works
DIY, by an installer, or full service - you choose. Works with (almost) any inverter brand - no OEM API required. Cross border, cross project, one unified platform.
We curtail your installation to prevent operational losses. Or hand control to a grid operator, supplier, BSP, BRP or CSP through our REST API. You can also control your installation manually from the web app at any time.
Subscribe to Pro and monitor your revenues with our advanced weather-based solar simulation, or step up to Pro Plus for reports measured from your Curtailer's own telemetry. We benchmark your revenues against your location and setup.
Binary control (on/off) is great for market price signals. Contact us for tailored solutions for specific use cases like VVTR, TDTR, TBTR, CBC, CSC and other forms of dynamic export control.
Contact sales →Monitoring, alerts and reporting
See full pricing →Pro and Pro Plus add the tools to watch performance closely and catch problems early:
A monthly PDF report and a full-load-hour forecast against your subsidy cap.
Email alerts after 1 hour, 1 day and 1 week of silence, with a direct link to the Curtailer.
We read your inverter directly over Modbus - any brand, any mix of brands, one place.
A year of full detail, then rolled into a permanent summary - your history is never deleted.