INTERVIEW


However, as Paul notes: “What has


changed is the efficiency of the generator sets you see now. The seventy-year-old 50kVA generator set is about the same size as a 250 – 300kVA generator set today.” That big reduction in size, in other words


the improvement in power density, has meant a corresponding reduction in fuel consumption and in emissions from generator sets, with emissions further reduced by new engine technology. FG Wilson engines are sourced from UK-


based manufacturer Perkins, designed in the UK and among the most modern and fuel- efficient engines available. All meet or surpass standards wherever


the engines are being used. Rightly, there’s growing interest in renewable sources of energy. Paul remarks: “We’re seeing this in many applications where a generator set may be


running for four or five hours a day and customers are seeking to reduce operating costs by adding a renewable element. “We’re working with some telecoms


networks and supplying hybrid generator sets with solar panels as part of the package. Thinking ahead, in countries where generator sets may be running for several hours a day, we can see solar panels, batteries, wind turbines and generator sets all linked and capable of powering settlements or customer applications.” Paul comments: “In regions where mains


supply is more secure and power outages less common, energy storage is also starting to become an option for some users. “ These are usually domestic or other light


users of electricity, who may have enough electrical energy stored to see through short outages.” He explains: “However, where you have a


“In many


appl ications a generator set may be


running for four or five hours a day and


customers are seeking to reduce


operating costs by adding a


renewable element.


We’re working with some telecoms


networks and supplying hybrid


generator sets.”


SEPTEMBER-OCTOBER 2018 UK POwER NEwS


facility which requires substantial electric power, like a data centre or hospital, current renewable and energy storage technology is not sufficiently well developed to be a commercially viable option for standby power. “For guaranteed continuity of power, you


still need a generator set, but that might exist along with some renewable energy sources, so you could end up with a slightly smaller generator set installed or perhaps run on batteries for a very short outage.” For FG Wilson products today, the


watchwords which design engineers live by are customer operational efficiency and keeping customer operating costs low. That means long service intervals, up to


1,000 hours on some of the popular small models with fewer parts consumed and fewer maintenance calls. On the popular 6.8 – 25 kVA range


there’s a choice of three sizes of fuel tank, with the largest 2,000 litre tank capable of fuelling the 11 kVA unit for up to 185 days for four hours a day at 75% load. A choice of sound attenuated enclosures


means customers can fit needs to budgets. Reliability in service is also a big priority: every new design is thoroughly validated at the UK facility including 500 hours of testing at full load power rating, covering maximum cold load step and hot load step and further testing for vibration, engine/alternator cool- ing, electromagnetic compatibility, noise, water ingress and rating/transient performance. Coming from an engineering background,


Paul sees this as especially important: “We’re a volume manufacturer and we take reliability extremely seriously. We know that thorough upfront design, testing and validation all lead to superior reliability throughout a product’s lifetime and that this can really save customers a substantial amount of money over time. If you add to this the wide and efficient FG Wilson dealer network with fast delivery of parts, it really does make a difference.” www.fgwilson.com


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