Manufactured in the UK
Need More Power? Skip the Grid Upgrade.
WattBox runs alongside your grid supply to boost your available power — installed in 6 weeks, not 6-12 months. No DNO upgrade required.
- Boost your power without a grid upgrade
- Installed in 6 weeks, not 6-12 months
- Save up to 60% on energy bills as a bonus
Installed in
6 weeks, not 6-12 months
HOW IT WORKS
WattBox runs in parallel. Your grid doesn't change.
WattBox sits between your grid supply and your heavy machinery. It charges from solar and cheap-rate grid power, then provides extra power on demand — boosting your total available draw beyond what the grid alone can deliver.
Step 1
Solar charges your WattBox
Solar panels generate free electricity during the day. WattBox stores it in industrial batteries, building your power reserve.
Step 2
Batteries boost your supply
When your machinery draws more than the grid can deliver, WattBox supplies the difference instantly. No tripping, no brownouts.
Step 3
Peak demand? No problem.
Milking, cooling, ventilation all running at once? WattBox handles the load. Your grid supply stays within its limit while your farm runs at full capacity.
Step 4
Bills drop, not just power rises
You’re generating and storing your own energy, using less from the grid. The same system that boosts your power also cuts your bills.
More power today. Lower bills every day.
One box, hundreds of configurations
Every WattBox is custom-built to match your exact requirements.
Grid-tied or Off-grid
Compatible with any power source - stay connected or go fully independent
Single or Three Phase
Sized for homes, farms, or large commercial operations
32 kWh - 416 kWh storage
Modular battery banks that scale with your needs
10 kW - 350 kW solar
From small rooftop arrays to large ground-mounted systems
Works with existing solar
Already have panels? We integrate seamlessly with your system
Add backup generator
Optional generator integration for ultimate peace of mind
REAL RESULTS
Farms already running on WattBox
See how other farms boosted their power and cut their bills.
Dairy Farm, Yorkshire
New SolarChallenge
200 cow robotic dairy with high refrigeration and hot water loads. Bills averaging £4,200/month.
Solution
100kW solar, 128kWh battery storage with 72kW max output (100A 3-phase supply)
Result
Reduced monthly bills by £2,100 (52%)
"The system paid for itself faster than we expected. We're now looking at expanding."
Broiler Farm, Lincolnshire
Existing SolarChallenge
High-density broiler sheds running 24/7 ventilation, heating and lighting. Existing 150 kW solar array exporting most generation at low rates.
Solution
288kWh WattBox with 108kW max output (150A 3-phase supply) integrated with existing solar system
Result
Captured extra £12k/year of previously exported solar. Supplied relible power during outages.
"Our export rate dropped to almost zero so it made sense to store as much solar as possible plus get all the other benefits."
Potato Store, Lincolnshire
Existing SolarChallenge
Refrigeration and ventilation running long hours post-harvest. High peak electricty rate (44p) existing 120 kW solar exported at 3p but had to buy energy back at 44p.
Solution
Connection of existing solar, 128kWh battery storage with 72kW max output (100A 3-phase supply). Night time charging at 33p to maximise savings.
Result
Reduced monthly bills by extra 20% on top of existing solar savings.
"We utilise more of our own solar to get a better return on investment whilst also avoiding the high peak rates as much as possible."
EXPECTED OUTCOMES
What could you save?
New monthly bill
£1,860/month
was £3,720/month
Payback period
4.3 years
then pure savings
Cumulative cost over time
Total energy spend over 20 years — with and without WattBox
Based on a typical large farm using 12,500 kWh/month with a time-of-use tariff.
Common Questions
Straight answers about power boosting, costs & timelines
Still waiting on the grid? Your farm doesn't have to.
Get your free power plan in under 2 minutes. No obligation — if the numbers don't work, we'll tell you.
