As a hosting provider, OVH never ceases to invent new ways of reducing the quantity of electricity needed to run its data centres. This keeps the cost of powering the servers down and the savings can be passed on to the customers.
Our approach since 2003
- In-house development of exclusive cooling systems
- Total elimination of air conditioning
- Savings made reflected in the price of servers
Our own data centres
Since 2010, OVH's new data centres have been without air conditioning.
The "30% aircooling + 70% water-cooling = 0% air conditioning" solution is deployed in all our new data centres. It has significantly reduced our energy bill, so much so that electricity now only accounts for 10% of the overall operating cost of our data centres.
Optimization of air flow
Rather than the traditional free cooling commonly used in data centres, the servers are cooled directly using air from the outside.
The way that the data centre has actually been designed plays a key role in this highly effective air flow management system. The tower design allows fresh air to directly reach the front of the servers, which regulates the temperature of the fans and air inlets.
- Fresh air passing in front of the servers
- Air heated by the components is evacuated at the back of the servers
- Hot and cold air flow separated
Industrialization of liquid cooling
One of the key elements of the OVH strategy in terms of energy efficiency is industrial deployment of water cooling systems.
This idea, born in 2003 and going against the current practices of the time, consists of using liquid inside the server itself to cool the processors. The liquid is carried by heat exchangers which are positioned on the processors and other components that emit a lot of heat.
70% of the heated generated by a server is thus captured by the liquid, which has a much higher heat transfer capacity than air.
Record PUE index
The PUE is the energy efficiency indicator for data centres. Thanks to its efforts to reduce its electricity consumption, OVH has achieved an average PUE of 1.09.
A better result than the average data centre.
OVH: Expert in data centre design and construction