{"id":17358,"date":"2020-07-10T09:00:00","date_gmt":"2020-07-10T08:00:00","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=17358"},"modified":"2020-07-09T10:16:25","modified_gmt":"2020-07-09T09:16:25","slug":"future-proof-standby-power-needs","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/future-proof-standby-power-needs\/","title":{"rendered":"Future-proof standby power needs"},"content":{"rendered":"\n

Whether it is a storm, a flood or a general blackout, hospitals must be able to sustain power. To future-proof their standby power needs, hospitals often upgrade their standby generator systems. Jason Harryman explains why a generator\u2019s power density matters\u00a0<\/strong><\/p>\n\n\n\n

During a diesel generator upgrade, as part of a hospital refurbishment or expansion, it can be tough to meet the requirements of the space, particularly if the engine room is small or difficult to access. <\/p>\n\n\n\n

To achieve a good balance between power output and available space, hospital management teams can opt for generators with a high power density. <\/p>\n\n\n\n

Specifying a system<\/strong><\/p>\n\n\n\n

Although the generator must be able to cover 100% of hospital power in the case of an outage, future-proofing isn\u2019t as simple as just buying bigger generators to meet extra capacity. <\/p>\n\n\n\n

If hospital teams over-size their system by choosing a generator with a higher rating than needed, the units will take up more space and have a higher maintenance and servicing requirement. Larger units also lead to increased capital costs, something which is increasingly hard to justify. <\/p>\n\n\n\n

At the same time, smaller units may not provide enough power, leaving hospital procurement teams with a tough decision.<\/p>\n\n\n\n

Engine manufacturers have been working to decrease the size of their units, while maintaining the same power resilience. This results in generators with higher power density \u2014 a measurement for the amount of power a piece of equipment produces for its size. <\/p>\n\n\n\n

While a standard hospital generator used to offer 2.5MVA standby, convention now is usually above 3.0MVA. <\/p>\n\n\n\n

One example is the Cat 3516, which was originally rated at 1650 kVA, but can now achieve over 3,000kVA, all from a very similar footprint.<\/p>\n\n\n\n

Aside from power density, using compact generators means hospitals also benefit from the need for less ancillary equipment and generators that are cheaper to transport, install and maintain.<\/p>\n\n\n\n

Power density in practice<\/strong><\/p>\n\n\n\n

As an example, Finning has provided Guy\u2019s Hospital in London with three Cat C175-20 generator sets with an output of 3200ekW, the highest output available from a single high-speed generator set in the UK. <\/p>\n\n\n\n

The system will go on to provide a combined 9600ekW of reliable, mission critical standby power.\u00a0<\/p>\n\n\n\n

Talking about the project, David Porter, Head of Compliance at Guy\u2019s and St Thomas\u2019 NHS Foundation Trust said: \u201cDue to the spatial constraints, we considered three different sizes of engines and appointed Finning, which offered the C175-20, because of its compact size and high power output. The small footprint of the C175-20 means that the new units can be housed within the existing generator rooms without any major building modifications.\u201d<\/p>\n\n\n\n

To reduce the risk of the power going out, hospitals may think that a more power dense generator means fewer units are required, and therefore fewer points of failure. <\/p>\n\n\n\n

However, demand for standby power has increased so significantly over the years, numbers have actually increased.<\/p>\n\n\n\n

The key to achieving a low cost of ownership is to optimise the generator to match the required needs.<\/p>\n\n\n\n

Jason Harryman is UK Sales and Business Development Manager for Electric Power at Finning UK & Ireland<\/a><\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Whether it is a storm, a flood or a general blackout, hospitals must be able to sustain power. To future-proof their standby power needs, hospitals often upgrade their standby generator systems. Jason Harryman explains why a generator\u2019s power density matters\u00a0 During a diesel generator upgrade, as part of a hospital refurbishment or expansion, it can …<\/p>\n","protected":false},"author":1,"featured_media":17359,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[107],"tags":[8578,7363,8579],"class_list":["post-17358","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-power","tag-cat-generators","tag-finning-uk-ireland","tag-power-density"],"yoast_head":"\nFuture-proof standby power needs - Engineer News Network<\/title>\n<meta name=\"description\" content=\"Whether it is a storm, a flood or a general blackout, hospitals must be able to sustain power. 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