SMEs should implement efficient UPS to achieve cost savings and reliable power protection
It’s been reported in an article on ELN (www.energylivenews.com) that Energy Minister Charles Hendry has been forced by his Shadow counterpart (Huw Irranca Davies) to concede that the Government’s energy policies could add as much as 43% to the average electricity price paid by small to medium businesses by 2020.
His revelation coincides with a predication by the Department for Energy and Climate Change (DECC) that SMEs will be lumbered with nearly a quarter increase (24%) on gas prices.
Just how far will the Government allow these prices hikes to go?
A month ago, Scottish Power became the first to inflict horrendous, double-digit price hikes on its customers and last week British Gas followed suit. It’s only a matter of time before the other four of the big six (E.ON, EDF, Scottish and Southern Energy) do the same. It will mean the average dual fuel bill will have risen by 50% since 2007 to nearly £1,500 per annum.
For business energy users, now is the time to fix a price with energy suppliers and/or switch to another, more competitive tariff. Energy Secretary, Chris Huhne is fighting to open up the energy market to smaller players and make it more competitive. Quoted in an article in the Telegraph earlier this week, he said: “The energy market has been too cosy for too long and it is madness that 99% of people get their energy from large firms.”
But what does this mean for UPS (uninterruptible power supply) customers?
Older UPS equipment is not as energy efficient as newer models. Any system between 5-10 years should be considered old in terms of energy efficiency.
Since 2007, UPS manufacturers have been introducing new products designed around energy efficiency and reducing TCO (total cost of ownership). Older UPS could be responsible for consuming 18% of the total energy used in a typical data centre. And when you consider the average data centre can consume as much as 2MW of energy per hour, it’s a considerable amount.
Modern UPS waste less energy in the conversion process and can be as much as 40% more efficient than their older counterparts (depending upon various load and operating criteria). Many UPS are as much as 96% efficient in online mode, a rating that can rise to 99% when running in certain other economy modes.
Efficiency is not just about energy use it takes into account maintenance, floor space, scalability, flexibility and TCO. Modern UPS incorporate microprocessor technology that enables smarter, intuitive management and allows remote interrogation by users giving them more control over operation, and thus, the ability to proactively manage and influence efficiency.
Today’s UPS are smaller in size and lighter in weight, which reduces building and installation costs. They leave room for easy serviceability and maintenance – key to reducing lifetime costs. How a UPS draws energy from the mains (termed Input Power Factor) can influence energy efficiency. It should be rated high (0.99). The higher the input power factor, the lower the reactive power (wasted energy). How a UPS utilises energy while protecting loads also influences efficiency, as does how they deal with Total Harmonic Distortion (THDi) to produce a pure sinewave input current that reduces energy wastage. The management of consumables (such as batteries, fans and capacitors) so that they are replaced less often serves to reduce operating costs overall.
Return on investment on new UPS can be as low as 2-3 years. Upgrading to new UPS models equates to an investment in equipment designed for more reliability, that meets the latest regulations and standards, offers more features, better performance, increased power protection, higher efficiency and lowest TCO. For sure, the best antidote to the dilemma of rising energy costs coupled with the need for greater power protection.