24 Hours a Day: What One Robot Can Do Overnight in Your Field

Most field work stops when the daylight fades. Staff finish their shifts, tractors return to the yard and manual weeding is postponed until the following morning. That can create a narrow operating window, particularly when crops need timely attention and weather conditions are changing quickly.

The FarmDroid approach is different. A solar-powered autonomous field robot can continue working after the farm team has gone home, using stored battery energy rather than relying on daylight or an operator in the cab.

For the larger FarmDroid FD60, FarmDroid states up to 24 hours of operation per day. This gives growers an additional working period without adding operator hours, overtime or a night-shift wage bill.

The night shift is powered during the day

The FD60 uses a solar-first power system. Its eight solar panels produce up to 3.7 kW, charging the robot’s integrated 23.5 kWh lithium battery during the day.

The battery is what drives the robot. This is important because solar generation naturally changes as the sun sets. Rather than stopping when daylight ends, the FD60 can draw on stored energy and continue its programmed work through the darker hours.

The system combines:

• ✔ Eight solar panels producing up to 3.7 kW
• ✔ A 23.5 kWh integrated lithium battery
• ✔ An integrated 3 kW Range Extender
• ✔ A 12-litre petrol tank for backup charging
• ✔ Up to 24 hours of operation per day, according to FarmDroid

The result is a machine designed around continuous autonomous work rather than a conventional daylight-only schedule.

What the Range Extender adds

The FD60’s Range Extender provides additional resilience when solar energy alone is not enough to maintain the planned working schedule.

It supplies up to 3 kW and uses a 12-litre petrol tank to top up the battery when required. The battery remains the source that drives the robot, while the Range Extender provides backup charging during longer working periods or less favourable solar conditions.

This is particularly relevant during:

• Long summer working days
• Several consecutive days of limited sunshine
• Short weather windows when every available hour matters
• Periods when the robot needs to continue working overnight

The Range Extender does not turn the FD60 into a conventional tractor. The machine remains a solar-first, battery-powered autonomous field robot, with the additional generator used to support continuity when conditions demand it.

No operator hours after the working day ends

One of the clearest benefits of overnight operation is the removal of driving and manual operating time.

The FD60 can carry out precision sowing and mechanical weeding autonomously at speeds of up to 1.2 km/h. Once the field has been prepared and the work programme has been set, the robot can continue its task without an operator sitting in a cab throughout the night.

That can help farms to:

• ✔ Avoid extending staff shifts into the evening
• ✔ Reduce reliance on overtime during busy periods
• ✔ Avoid creating a separate night-shift operation
• ✔ Keep staff focused on tasks that still require human judgement
• ✔ Start the next day with more field work already completed

This does not remove the need for sensible field planning, safety procedures and oversight. It does, however, change how available labour is used. The robot carries out repetitive row work while the farm team is away from the field.

The field can be ready by morning

Overnight work is most valuable when it improves the following day’s schedule.

A robot that continues working after sunset may complete part of a planned weeding programme before the team returns. Depending on the field, crop stage and operating plan, this can leave the machine ready for its next assignment in the morning rather than waiting for the day’s first available operator.

The practical benefit is not simply more hours on the clock. It is a better use of the hours when skilled labour is available.

For growers managing several fields, the FD60’s capacity is designed for a larger working footprint:

• Up to 18 hectares per day
• Minimum 60 hectares per crop per season
• Up to 6.75 metres working width
• Up to 20 rows per pass

These are FD60 figures and should be assessed against the farm’s crop plan, field layout, row spacing and operating conditions.

Darkness is not a problem for GPS-guided weeding

The FD60 does not depend on cameras or crop-recognition software to identify the crop during weeding. Instead, it uses high-precision RTK GPS to record where each seed was placed and return to those positions for mechanical treatment.

FarmDroid states RTK positioning accuracy of approximately 8 mm.

This has a direct advantage at night: the robot does not need daylight to recognise crop plants. Its route is based on the recorded seed positions and field data rather than a camera image that must be interpreted in changing light.

The FD60 carries out both:

• Mechanical inter-row weeding
• Mechanical in-row weeding

Because the machine returns to the known seed locations, it can work on the crop rows without relying on visual crop recognition. The same principle also supports early field entry, including weeding before the crop has fully emerged where the sowing and field conditions make this appropriate.

Making better use of short weather windows

UK field conditions can change quickly. A dry period may be suitable for mechanical weeding, but the available window may not align neatly with staff working hours.

An autonomous crop weeding system provides additional scheduling flexibility. If the field is ready and the robot is correctly configured, work can continue into the evening and overnight rather than stopping solely because the working day has ended.

This can help farms make better use of:

• Short dry periods
• Gaps between rainfall events
• Early-season periods when weeds need repeated attention
• Busy weeks when operators are already committed elsewhere

The robot does not make unsuitable ground conditions suitable. Field access still depends on soil condition, crop requirements and safe operation. Its value is that it can use more of the suitable time that is available.

Where the FD20 fits

The FarmDroid FD20 follows the same basic principle of autonomous sowing and mechanical weeding. It uses solar panels and an integrated battery system for carbon-neutral operation, with GPS-controlled movement through and between crop rows.

The FD20 is the more compact option, with:

• A weight of approximately 900 kg
• Capacity of up to 20 hectares per crop
• Row spacing from 22.5 to 75 cm
• Working width of up to 3.5 metres
• An optional spot sprayer available

The FD20 can work autonomously beyond the farm team’s normal working hours, but overnight output will depend on the crop, field layout, battery state, weather and operating plan. It would not be accurate to assign an exact overnight hectare figure without assessing those conditions.

Growers considering night work with an FD20 should contact AGRI-DROID UK to confirm the appropriate configuration and expected field programme.

A practical role in labour planning

The value of a 24-hour operating capability is not that every farm must run a robot continuously. The value is the flexibility to use autonomous equipment when it creates the greatest operational benefit.

For some farms, that may mean:

• Running mechanical weeding after the workforce has finished
• Reducing pressure during peak seasonal labour periods
• Completing field work before the next morning
• Using the robot during a narrow weather window
• Reducing the number of manual hours required for repetitive row work

This makes autonomous field robotics a practical labour-planning tool, not simply a replacement for a tractor.

The FD60 combines a wide working footprint with a solar-first battery system, RTK GPS and mechanical weeding. Its up-to-24-hour operating capability extends the available working day while avoiding dependence on daylight, cameras or continuous operator presence.

Discuss overnight field work with AGRI-DROID UK

For growers in Shropshire, Staffordshire, the West Midlands, Worcestershire, Herefordshire, Powys, Clwyd and Cheshire, the right operating model will depend on crops, row spacing, field access and seasonal workload.

AGRI-DROID UK can help assess whether the FD20 or FD60 is the better fit for your farm and explain how autonomous crop weeding could work alongside your existing field operations.

Explore the FarmDroid FD60, learn how mechanical weeding works, or contact AGRI-DROID UK to discuss your crop plan.