Generator silent since 15 March 2026.

A farm and fabrication yard. No grid connection. One off-grid system from OGE.

£150+/week

what the old generators cost in fuel and maintenance

0 hours

generator run time since 15 March 2026

45 kVA

inverter capacity (3× MultiPlus-II 48|15000)

Aerial view of Park Hill Farm — the working fabrication and plant yard, with the rooftop solar array that powers the site, and a mobile crane, telehandler and van in the yard below

Park Hill Farm from the air — the working yard, powered by the rooftop array.

Live proof

Solar running the site. Generator stopped.

A weekday morning on Park Hill's Victron monitor — 5,845 W of solar feeding the site, batteries at 97%, and the diesel generator switched off.

The season behind that snapshot: spring 2026 on Park Hill’s VRM — 3,874 kWh of solar against 3,393 kWh used, the generator running only in early March, and the battery climbing to near full through April and May. No grid connection, in or out.

The system

What's running the site

Three Victron MultiPlus-II 48|15000 inverter/chargers wall-mounted at Park Hill Farm

Victron SmartSolar MPPT RS 450 charge controllers at Park Hill Farm

3× MultiPlus-II 48|15000 inverter/chargers · BYD battery stacks · SmartSolar MPPT RS 450. The retained AEM Gensets diesel generator stays on site — now backup, not primary.

The load

What it powers

A site like this requires far more power than a domestic house. A working fabrication shop — welders, machine tools and three-phase plant — all running off solar and battery.

Who you’re trusting with the job

Off Grid Engineering has designed, installed and monitored off-grid power systems since 2020. Victron Energy — the manufacturer behind the core kit — has featured our installs in three of its own films, including a 108-panel three-phase system for Scottish Woodlands, and lists us on its official installer network.

Certified installer

Authorised dealer

Service partner

Registered

We monitor 141 systems on Victron VRM — more than a hundred reporting on any given day. If something needs attention, we usually see it before the customer does.

In the client's words

“Our previous setup of generators was unsustainable, costing over £150 a week in fuel and maintenance.”

“I heard about Off Grid Engineering through YouTube and liked the work they’d previously done for similar clients. Running a farm with multiple buildings is a big power demand — far larger than domestic needs — and I never imagined a solar system would manage it. From consulting through to install in December 2025, Scott and his team were extremely professional and kept tidy, high standards of work throughout. The system has saved us a significant amount compared with a conventional three-phase connection and its constantly increasing monthly bills. Our previous setup of generators was unsustainable, costing over £150 a week in fuel and maintenance. The 30-year guarantee on the panels and 10-year guarantee on the batteries also gives us confidence the system will serve us well into the future, and can be expanded as our power needs grow.”

James DohertyOwens Agricultural · Park Hill Farm

The diesel generator at Park Hill Farm, retained on site as backup after the off-grid solar and battery system was installed

The generator stays

Now backup, not primary.

We didn't take the diesel generator away. It's still on site, wired in as backup. Day to day, the solar and battery run the yard and the generator sits silent — but it's there if it's ever needed. Going off-grid didn't mean losing the fallback.

Talk to us about your site

The Off Grid Engineering van on site at Park Hill Farm, alongside the yard's crane and vehicles

Off Grid EngineeringOff-grid solar & battery systems for farms, yards and rural business — designed, installed and monitored.

03337 722659
info@offgridengineering.uk