The premise for voltage optimisation is simple.
In the UK however, the average voltage supplied from the national grid is 242V, with levels ranging as high as 253V, in some premises.
This ‘over voltage’ is not only costly but can also be detrimental to electrical equipment. Excess voltage produces excess noise, heat and vibration, causing stress on internal parts and especially to motors, which are vulnerable to overheating and wear out more quickly. Equipment such as chillers and air-conditioning units use motors to run their pumps and fans, therefore particularly benefit from voltage optimisation, as do incandescent lamps and T8 fluorescent lamps.
Voltage optimisation is also invaluable in levelling out the peaks and troughs in supply from the national grid, which can be damaging to equipment – particularly sensitive IT components. These variances in the electricity supplied are caused by jumps and falls in demand on the national grid at certain times of the day. Volatility in levels is likely to increase, as more and more solar and wind micro-generation systems feed power into the grid, making the need to maintain a steady voltage supply more important than ever.
How voltage optimisation works
Optimising voltage to save energy
If a site is being supplied with electricity at a higher voltage level than needed, then it will likely be wasting energy, money and be responsible for more emissions than necessary. This is where voltage optimisation can help as electrical equipment can sometimes consume more power at higher voltages.
By installing a voltage optimisation system in conjunction with the mains supply, the incoming voltage is optimised to ensure that a building only receives and pays for the level of voltage that it actually needs, and no more.
Voltage optimisation can be used alongside many other kinds of energy saving devices, such as lighting controls, solar panels and all types of heat pumps – air, ground and solar – whilst improving energy efficiency.
Companies have been seeing the benefits of voltage optimisation for many years, and the technology is a well-established and trusted method of reducing energy costs and carbon emissions.
VO4 voltage optimisation systems utilise this technology, commonly used on large-scale industrial sites and adapt it for use in small business and residential properties with a typical annual electricity consumption of up to 300,000kWh per year. VO4 voltage optimisation systems as a highly effective ‘fit and forget’ technology for residential properties and smaller commercial sites.
For sites with a three phase supply who typically use over 300,000 kWh per year, Powerstar voltage optimisation systems may provide a more suitable solution.
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