search.noResults

search.searching

saml.title
dataCollection.invalidEmail
note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
• • • DATA CENTRE MANAGEMENT • • •


WHY LITHIUM ION BATTERIES ARE BEST FOR DATA CENTRES


Lithium ion is far superior to lead acid as a battery chemistry for data centre applications because it delivers higher performance and a more reliable power supply, says temporary power solutions specialist Aggreko


U


ninterruptable power supply (UPS) batteries are useful means of ensuring power to a data centre is constant and unfluctuating, on top of providing a cost-effective bank of energy during times of higher grid demand. Power demand and the supply from its energy source must be at equal levels to ensure the data centre runs effectively, therefore, a battery can work in conjunction with the generators to provide consistent output and avoid downtime. While some organisations have recently suggested the more traditional lead acid battery chemistry is the best option for data centres, Aggreko believes that the benefits of lithium ion batteries make them much better suited to the growing market for five key reasons:


1. SUPERIOR CAPACITY, DEPTH OF DISCHARGE, AND EFFICIENCY


Lithium ion technology tends to have a much higher energy density, can achieve an 85 per cent depth of discharge compared to lead acid’s 50 per cent, and is usually 95 per cent or more efficient, meaning almost all of the larger amounts of energy stored in the battery can be harnessed. For a data centre, this higher availability of power


means that supply is readily available for longer and can keep up during periods of increased demand.


2. LONGER LIFESPAN


Lithium ion batteries can achieve up to eight times the amount of cycles than their lead acid counterparts, therefore they can be implemented into data centres for longer and don’t require costly replacement as often.


3. BETTER SOFRWARE OPTIMISATION


Lithium ion batteries can be optimised using dedicated software, which can ensure the battery is charged and delivers its output in the most efficient way while preserving the units’ lifespan. For a data centre, this means the power output can be monitored and the battery can be operated within its most optimal charge range of 30-80%.


4. ELECTRICAL SAVINGS


To save on overall electricity costs, UPS batteries can be used as demand side response (DSR) units, when demand on the grid is exceeding supply. Additionally, they can be used as spinning reserve energy banks, using excess generator system energy. Lithium ion’s higher capacity, depth of discharge and efficiency make them ideal for this application, with more energy stored. This ultimately translates into better cost savings from using less grid or generator power in high demand periods.


electricalengineeringmagazine.co.uk


5. CONTINUED RESEARCH AND DEVELOPMENT


Lithium ion technology is constantly undergoing development and being optimised, both in the static battery and automotive industries, and so using this battery chemistry means data centres will benefit from innovations at the forefront of the energy storage industry, on top of the cost reductions that come from added investment. Often, data centres require generator systems and batteries for a limited time, for example when waiting for grid connection. To avoid unnecessary capital outlay, data centre providers can enlist companies such as Aggreko to provide modular rental solutions to be integrated into any size of facility, in many regions across the globe. “We know the importance of having a reliable UPS


solution for data centre providers,” says Nick Osborne, Data Centre Specialist at Aggreko. “Our Y.Cube system, for instance, uses lithium ion technology to deliver the best performance for use as a modular UPS in data centre applications, meaning downtime and its ensuing costs are avoided. “Our flexible and standardised rental solutions and


expert consultancy are available to data centre providers and operators across the entire globe, meaning any facility in any region can benefit from expert guidance and reliable power supplies,” he adds.


AGGREKO | aggreko.com ELECTRICAL ENGINEERING • APRIL 2021 11


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52