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Green Powered & Energy Efficient

100% Green Powered Hosting

Our global operations are powered entirely by renewable energy. Our UK datacentre uses 100% green sourced power as specified by E.ON and as regulated by Ofgem, and our US facility uses 100% renewable energy, as certified by Green-e.

Energy Efficient Datacentre

Our datacentre is built from the ground up to be efficient, with a PuE rating of between 1.2 and 1.3 and environmental management policy externally assessed to ISO 14001 standards.

Sensible Green Policies

Our environmental policies aim to reduce waste, encourage recycling and avoid all unnecessary travel. Many of our staff also regularly enjoy working from the comfort of their own homes.

Picture the scene...

It's a Sunday morning. You've sat down with your coffee and croissant, and you decide to read the news online, check your email or watch the latest YouTube sensation.


This little scene may seem innocent enough, but did you know that what you've just done had an environmental impact? Would you be surprised to learn that it contributes to a beast that produces an enormous and ever-growing amount of carbon?

Real-World Mechanics

As ephemeral as it all seems, it's easy to forget the real-world mechanics that go into keeping the Internet running. A web site is housed on a server in a datacentre - a building packed top to bottom with servers which power the web pages, videos, online applications and downloadable files that make the modern online experience possible.

All these servers require electricity to keep them powered up, and then almost as much again to keep them cool. To generate much of that electricity, fossil fuels like coal and gas are usually being burned.

The internet is a filthy, carbon-emitting monster.

The Kualo Way

We're passionate about web sites, but moreover, we're passionate about ensuring they don't damage our environment.

100% Renewable Power

Truly green hosting starts with 100% renewable power.

In the UK, our datacentre runs on 100% green-sourced power as specified by E.ON (the Supplier) and as regulated by Ofgem. E.ON are one of the leading renewable generators in the UK with over 20 on-shore and off-shore wind farms, including the London Array, the world's largest off-shore wind farm with a capacity of 630MW.

We also use renewable energy for 100% of our U.S. operations, as certified by Green-e, North America’s leading voluntary certification programme for renewable energy. We have additionally been recognized by the U.S. Environmental Protection Agency as a Green Power Partner. Our renewable energy is sourced through Native Energy, one of the few genuinely high-integrity businesses in the sector. Their projects go beyond simply generating renewable energy, but moreover, deliver social benefits for the communities in which those projects are located, including schools, family owned farms and Native American tribes.

We are also partner member of The Green Web Foundation, a not-for-profit organisation who are on a mission to speed up the transition towards a completely green Internet. You can verify whether your site is running on renewable energy on their website.

Green Power Partner
Green-E Certified Hosting
The Green Web Foundation

E.ON's 630MW "London Array", the world's largest off-shore wind farm, which reduces CO2 emissions by 900,000 tons annually.

NativeEnergy's "Greensburg Wind Farm", which helped revitalise a community devastated by a 2007 EF-5 Tornado.

Energy Efficient Data Center

Even renewable energy is precious - so the next step in the process is to ensure that use of that electricity is also kept to an absolute minimum, which starts with intelligent datacentre design.

Our primary hosting facility, Centro, is not only powered entirely by renewable energy, but has also been built from the ground up to be extremely energy efficient. Part of The Green Grid industry body, Centro complies with the EU datacentre code of conduct and is audited and certified to ISO 14001 (Environment Management) standards. The facility achieves a class-leading PUE (Power usage effectiveness) of 1.2, making it one of the most efficient hosting facilities in service today.

In the typical datacentre, a huge amount of energy is used to keep the servers cool - generally this is because inefficient design principals have been employed. In the vast majority of datacentres, the server rooms are kept exceedingly cold, but the servers sit there blowing out a heap of hot air back into the room. A huge amount of energy is thereby wasted constantly having to re-cool that hot air again, causing the cooling systems to work harder and consume more power than they ought to.

In Centro, the hot air expelled from the servers is contained and directly extracted from the building, meaning the cooling systems can operate much more energy efficiently. The super efficient water-based chillers additional use 'free cooling' technology, which means that when it's cool enough, the outside air can just be pumped through rather than waste energy keeping the chillers running at full-speed.

Sensible Green Policies

Being environmentally conscious is at the heart of everything we do. Along with a super-efficient, green powered datacenter, as a company we also:

  • Use energy efficient servers with high-efficiency power-supplies and smart sensors to control fans so that they only provide cooling when required.
  • Cycle out older server hardware to newer more efficient technology as it becomes available
  • Operate a completely paperless system with all customer invoices, specs and receipts sent out in electronic format
  • Avoid printing unnecessary documents and recycle all unneeded paper
  • Use modern, low-power PCs throughout the office that use similar technologies to what we deploy in our servers
  • Encourage staff to work from home to minimise unnecessary commuting
  • Avoid all unnecessary travel