Device-level curtailment control for solar
SME · C&I · agro-horti solar, 50 kWp+

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, we can track it.

Real world example

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 →

Hover or touch the chart to explore the day

Why curtail?

Increasing revenue for your solar assets by:

Ensuring extreme losses cannot occur

Export pauses automatically before the price drops deep negative, so a bad price hour never turns your own production into a cost.

Curtailing unsubsidized and unfeasible production

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

01
Install at the device level

DIY, installer installation, or full service - you choose. Works with 90%+ of inverters (see compatibility list).

02
You are always in charge

We can curtail your installation, or provide control to a grid operator, supplier, or CPO. Alternatively you can manually control your installation from the webapp or integrate our API.

03
Tariff & SDE++ tracking keeps it current

Free in year one. After that, a transparent fee keeps the threshold adjusting automatically as public tariffs and subsidy rules change.

04
Get paid, or avoid the cost

Monitor your profits based on our advanced weather-based solar simulation.

Agro · 540 kWp
Dairy farm barn roofs, Friesland
€4.00k / yr
projected annual gain
Run this simulation →
C&I rooftop · 130 kWp
Retail park, Utrecht
€969.09 / yr
projected annual gain
Run this simulation →
Standalone · 1.2 MWp
Solar park, Overijssel
€11.73k / yr
projected annual gain
Run this simulation →

Ready to start curtailing today?

Order The Curtailer from the webstore - DIY install, installer install, or full service.

Stay in the loop

Curtailment news and product updates, a few times a year.