Hosting that's
kinder to the planet
All 13 of our UK data centres run on 100% renewable energy from wind, hydro and solar. And at our flagship Maidenhead site, 560 rooftop solar panels now generate clean power directly above the racks they keep online.
560
Solar panels at Maidenhead
250,000
kWh generated per year
96,061kg
CO₂ avoided annually
100%
Renewable across all 13 DCs
Watch the 560-panel array being installed on the Maidenhead roof.
560 solar panels on our Maidenhead roof
Our flagship 2,800 m² Maidenhead data centre - home to more than 12,000 servers - now has 560 rooftop solar panels feeding clean power straight into the building. Installed by solar specialists 3ti and completed in May 2024, the array is designed to make the site largely self-sustaining for power through the summer months.
- 560 panels generating circa 250,000 kWh per year
- Avoiding 96,061 kg of CO₂ emissions annually
- Aim of self-sustaining summer power on-site
- Future potential to export surplus energy back to the grid
Source: iomart - Powering the first UK data centre with solar energy generated onsite (August 2024)
British wind & hydro, every hour of the day
The Maidenhead solar array is part of a much wider commitment. All 13 of our UK data centres are powered by 100% renewable energy - sourced from a mix of UK wind, hydro and solar generation - so no matter which site your services run from, the electricity behind them is clean.
- 100% renewable energy across all 13 UK data centres
- Wind, hydro and solar - no fossil fuels in our normal energy mix
- Maidenhead alone hosts 12,000+ servers across 2,800 m²
- On-site generation reduces reliance on the wider grid
Six pillars of greener hosting
Sustainability isn't one decision - it's dozens of small ones, made consistently. Here's what we focus on.
560 solar panels at Maidenhead
560 rooftop photovoltaic panels at our flagship Maidenhead data centre generate around 250,000 kWh a year - feeding straight into the building's primary power.
100% renewable across 13 UK DCs
Every one of our 13 UK data centres runs on 100% renewable energy from wind, hydro and solar - not just the flagship site.
Efficient precision cooling
N+1 precision cooling holds the halls at a steady 22°C ±2°C with fully redundant air handling, running at a measured PUE of 1.6.
Circular hardware lifecycle
Decommissioned servers are refurbished, repurposed or responsibly recycled through certified WEEE partners - minimising e-waste at every stage.
Carbon-conscious operations
Continuous PUE monitoring, efficient virtualisation and consolidated workloads mean every watt is used wisely - reducing your carbon footprint.
Honest reporting
We don't hide behind vague green badges. Ask us about our energy mix, PUE figures and supplier certificates - we'll share them.
We're proud of the progress - but we know it's not enough
The hosting industry has a real environmental footprint. Data centres use a lot of power, hardware uses a lot of materials, and cooling uses a lot of water. Renewable energy and rooftop solar are a meaningful start - but they're a start, not a finish line.
We'd rather be straight about that than dress it up. So here's what we're working on next, and where we know we still have to do better.
Measuring more, not less
Better PUE reporting, embodied-carbon tracking for hardware, and clearer per-customer footprint data - so what we share is verifiable, not vibes.
Squeezing more from every watt
Higher rack densities, smarter virtualisation and longer hardware lifecycles. The greenest server is one we don't have to replace.
Beyond our own four walls
Working with suppliers, partners and customers to reduce upstream emissions - because our footprint doesn't stop at the data centre door.
If you've got ideas, challenges or want to hold us to account on any of this - please do. We'd rather have the honest conversation.
No greenwashing, just good engineering
"Green hosting" gets thrown around a lot. We try to keep it simple and honest - these are the principles we hold ourselves to.
- Power the racks with renewables - not just the marketing
- Use less energy in the first place, before offsetting anything
- Keep hardware in service longer, then recycle it properly
- Be transparent about what 'green hosting' actually means
Move to greener hosting
Same fast, fully managed hosting - running on renewable energy, in an efficient UK data centre, with hardware that's looked after for the long term.