23 April 2026·3 min read

Cutting a £10,000 Monthly Fuel Bill with a Wattbox

Set on the stunning Horseshoe Pass near Llangollen, Berwyn Slate is a family-run quarry that’s built its reputation on quality and hands-on craftsmanship. Everything happens right there on site—from pulling slate out of the ground to turning it into bespoke pieces for customers. The catch? It’s all completely off-grid. With fuel prices climbing and more pressure on traditional ways of powering the site, the team found themselves facing a challenge that’ll sound familiar to a lot of off-grid bu

By Alan Heffernan

19 February 2026·5 min read

£18,000 a Year in Diesel — How One Dairy Farm Took Back Control of Its Power

Paul's farm in Pembrokeshire 600-acre dairy farm | 400 cows | Milking twice a day, 365 days a year The Reality of Running a 400-Cow Dairy Farm Set against the sea views is a 600-acre dairy farm with around 400 cows. It’s the kind of view most people would book a holiday for — but dairy farming doesn’t allow for days off. The cows are milked twice a day, seven days a week. That means reliable staff, reliable systems and reliable power are vital for business to succeed. On a dairy farm, power

By Harry Benfield

4 February 2026·8 min read

Keeping 32,000 Chickens Safe: How Wattbox Transformed a Shropshire Farm

Visiting Neville's farm in Shropshire When we visited Neville’s farm in rural Shropshire, it was clear that an operation this large needed power they could rely on. The family farm—once focused on cattle and sheep—has evolved into a modern poultry unit housing 32,000 laying hens across two large sheds. For 18 months, each flock produces eggs that supply local markets before being moved on for by-products. But beneath the calm, efficient exterior lies a constant pressure point: keeping the powe

By Alan Heffernan

4 February 2026·7 min read

So What is a Wattbox and How Does it Work?

Section 1 — What is a Wattbox? 1.1 The Basics A Wattbox is a ready-to-use, pre-built container full of: * Batteries – Storing excess solar energy and charging from mains while electricity is cheap. * Inverters – convert stored 48V power to usable single or three phase 230V to run power machinery on your farm. * MPPT Solar Chargers – Harvests the high voltage solar energy and uses it to charge the batteries. Together, these components let a farm store and manage its own energy efficiently

By Alan Heffernan